// @formatter:off
/*
* LocalyticsSession.java Copyright (C) 2012 Char Software Inc., DBA Localytics. This code is provided under the Localytics
* Modified BSD License. A copy of this license has been distributed in a file called LICENSE with this source code. Please visit
* www.localytics.com for more information.
*/
// @formatter:on
package com.localytics.android;
import android.Manifest.permission;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.CursorJoiner;
import android.os.Build;
import android.os.Build.VERSION;
import android.os.Handler;
import android.os.HandlerThread;
import android.os.Looper;
import android.os.Message;
import android.os.SystemClock;
import android.telephony.TelephonyManager;
import android.text.TextUtils;
import android.text.format.DateUtils;
import android.util.Log;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.TreeMap;
import java.util.UUID;
import java.util.zip.GZIPOutputStream;
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ByteArrayEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import com.localytics.android.JsonObjects.BlobHeader;
import com.localytics.android.LocalyticsProvider.ApiKeysDbColumns;
import com.localytics.android.LocalyticsProvider.AttributesDbColumns;
import com.localytics.android.LocalyticsProvider.EventHistoryDbColumns;
import com.localytics.android.LocalyticsProvider.EventsDbColumns;
import com.localytics.android.LocalyticsProvider.IdentifiersDbColumns;
import com.localytics.android.LocalyticsProvider.InfoDbColumns;
import com.localytics.android.LocalyticsProvider.SessionsDbColumns;
import com.localytics.android.LocalyticsProvider.UploadBlobEventsDbColumns;
import com.localytics.android.LocalyticsProvider.UploadBlobsDbColumns;
/**
* This class manages creating, collecting, and uploading a Localytics session. Please see the following guides for information on
* how to best use this library, sample code, and other useful information:
* <ul>
* <li><a href="http://wiki.localytics.com/index.php?title=Developer's_Integration_Guide">Main Developer's Integration Guide</a></li>
* <li><a href="http://wiki.localytics.com/index.php?title=Android_2_Minute_Integration">Android 2 minute integration Guide</a></li>
* <li><a href="http://wiki.localytics.com/index.php?title=Android_Integration_Guide">Android Integration Guide</a></li>
* </ul>
* <p>
* Permissions required:
* <ul>
* <li>{@link permission#INTERNET}</li> - Necessary to upload data to the webservice.</li>
* </ul>
* Permissions recommended:
* <ul>
* <li>{@link permission#ACCESS_WIFI_STATE}</li> - Necessary to identify the type of network connection the user has. Without this
* permission, users connecting via Wi-Fi will be reported as having a connection type of 'unknown.'</li>
* </ul>
* <strong>Basic Usage</strong>
* <ol>
* <li>In {@code Activity#onCreate(Bundle)}, instantiate a {@link LocalyticsSession} object and assign it to a global variable in
* the Activity (e.g. {@code mLocalyticsSession}).</li>
* <li>In {@code Activity#onResume()}, call {@link #open()} or {@link #open(List)}.</li>
* <li>In {@code Activity#onResume()}, consider calling {@link #upload()}. Because the session was just opened, this upload will
* submit that open to the server and allow you to capture real-time usage of your application.</li>
* <li>In {@code Activity#onResume()}, consider calling {@link #tagScreen(String)} to note that the user entered the Activity.
* Assuming your application uses multiple Activities for navigation (rather than a single Activity with multiple Fragments}, this
* will capture the flow of users as they move from Activity to Activity. Don't worry about Activity re-entrance. Because
* {@code Activity#onResume()} can be called multiple times for different reasons, the Localytics library manages duplicate
* {@link #tagScreen(String)} calls for you.</li>
* <li>As the user interacts with your Activity, call {@link #tagEvent(String)}, {@link #tagEvent(String, Map)} or
* {@link #tagEvent(String, Map, List)} to collect usage data.</li>
* <li>In {@code Activity#onPause()}, call {@link #close()} or {@link #close(List)}.</li>
* </ol>
* <strong>Notes</strong>
* <ul>
* <li>Do not call any {@link LocalyticsSession} methods inside a loop. Instead, calls such as {@link #tagEvent(String)} should
* follow user actions. This limits the amount of data which is stored and uploaded.</li>
* <li>This library will create a database called "com.android.localytics.sqlite" within the host application's
* {@link Context#getDatabasePath(String)} directory. For security, this file directory will be created
* {@link Context#MODE_PRIVATE}. The host application must not modify this database file. If the host application implements a
* backup/restore mechanism, such as {@code android.app.backup.BackupManager}, the host application should not worry about backing
* up the data in the Localytics database.</li>
* <li>This library is thread-safe but is not multi-process safe. Unless the application explicitly uses different process
* attributes in the Android Manifest, this is not an issue. If you need to use multiple processes, then each process should have
* its own Localytics API key in order to make data processing thread-safe.</li>
* </ul>
*
* @version 2.0
*/
public final class LocalyticsSession
{
/*
* DESIGN NOTES
*
* The LocalyticsSession stores all of its state as a SQLite database in the parent application's private database storage
* directory.
*
* Every action performed within (open, close, opt-in, opt-out, customer events) are all treated as events by the library.
* Events are given a package prefix to ensure a namespace without collisions. Events internal to the library are flagged with
* the Localytics package name, while events from the customer's code are flagged with the customer's package name. There's no
* need to worry about the customer changing the package name and disrupting the naming convention, as changing the package
* name means that a new user is created in Android and the app with a new package name gets its own storage directory.
*
*
* MULTI-THREADING
*
* The LocalyticsSession stores all of its state as a SQLite database in the parent application's private database storage
* directory. Disk access is slow and can block the UI in Android, so the LocalyticsSession object is a wrapper around a pair
* of Handler objects, with each Handler object running on its own separate thread.
*
* All requests made of the LocalyticsSession are passed along to the mSessionHandler object, which does most of the work. The
* mSessionHandler will pass off upload requests to the mUploadHandler, to prevent the mSessionHandler from being blocked by
* network traffic.
*
* If an upload request is made, the mSessionHandler will set a flag that an upload is in progress (this flag is important for
* thread-safety of the session data stored on disk). Then the upload request is passed to the mUploadHandler's queue. If a
* second upload request is made while the first one is underway, the mSessionHandler notifies the mUploadHandler, which will
* notify the mSessionHandler to retry that upload request when the first upload is completed.
*
* Although each LocalyticsSession object will have its own unique instance of mSessionHandler, thread-safety is handled by
* using a single sSessionHandlerThread.
*/
/**
* Format string for events
*/
/* package */static final String EVENT_FORMAT = "%s:%s"; //$NON-NLS-1$
/**
* Open event
*/
/* package */static final String OPEN_EVENT = String.format(EVENT_FORMAT, Constants.LOCALYTICS_PACKAGE_NAME, "open"); //$NON-NLS-1$
/**
* Close event
*/
/* package */static final String CLOSE_EVENT = String.format(EVENT_FORMAT, Constants.LOCALYTICS_PACKAGE_NAME, "close"); //$NON-NLS-1$
/**
* Opt-in event
*/
/* package */static final String OPT_IN_EVENT = String.format(EVENT_FORMAT, Constants.LOCALYTICS_PACKAGE_NAME, "opt_in"); //$NON-NLS-1$
/**
* Opt-out event
*/
/* package */static final String OPT_OUT_EVENT = String.format(EVENT_FORMAT, Constants.LOCALYTICS_PACKAGE_NAME, "opt_out"); //$NON-NLS-1$
/**
* Flow event
*/
/* package */static final String FLOW_EVENT = String.format(EVENT_FORMAT, Constants.LOCALYTICS_PACKAGE_NAME, "flow"); //$NON-NLS-1$
/**
* Background thread used for all Localytics session processing. This thread is shared across all instances of
* LocalyticsSession within a process.
*/
/*
* By using the class name for the HandlerThread, obfuscation through Proguard is more effective: if Proguard changes the
* class name, the thread name also changes.
*/
private static final HandlerThread sSessionHandlerThread = getHandlerThread(SessionHandler.class.getSimpleName());
/**
* Background thread used for all Localytics upload processing. This thread is shared across all instances of
* LocalyticsSession within a process.
*/
/*
* By using the class name for the HandlerThread, obfuscation through Proguard is more effective: if Proguard changes the
* class name, the thread name also changes.
*/
protected static final HandlerThread sUploadHandlerThread = getHandlerThread(UploadHandler.class.getSimpleName());
/**
* Helper to obtain a new {@link HandlerThread}.
*
* @param name to give to the HandlerThread. Useful for debugging, as the thread name is shown in DDMS.
* @return HandlerThread whose {@link HandlerThread#start()} method has already been called.
*/
private static HandlerThread getHandlerThread(final String name)
{
final HandlerThread thread = new HandlerThread(name, android.os.Process.THREAD_PRIORITY_BACKGROUND);
thread.start();
/*
* Note: we tried setting an uncaught exception handler here. But for some reason it causes looper initialization to fail
* randomly.
*/
return thread;
}
/**
* Maps an API key to a singleton instance of the {@link SessionHandler}. Lazily initialized during construction of the
* {@link LocalyticsSession} object.
*/
private static final Map<String, SessionHandler> sLocalyticsSessionHandlerMap = new HashMap<String, SessionHandler>();
/**
* Intrinsic lock for synchronizing the initialization of {@link #sLocalyticsSessionHandlerMap}.
*/
private static final Object[] sLocalyticsSessionIntrinsicLock = new Object[0];
/**
* Handler object where all session requests of this instance of LocalyticsSession are handed off to.
* <p>
* This Handler is the key thread synchronization point for all work inside the LocalyticsSession.
* <p>
* This handler runs on {@link #sSessionHandlerThread}.
*/
private final Handler mSessionHandler;
/**
* Application context
*/
private final Context mContext;
/**
* Keeps track of which Localytics clients are currently uploading, in order to allow only one upload for a given key at a
* time.
* <p>
* This field can only be read/written to from the {@link #sSessionHandlerThread}. This invariant is maintained by only
* accessing this field from within the {@link #mSessionHandler}.
*/
protected static final Map<String, Boolean> sIsUploadingMap = new HashMap<String, Boolean>();
/**
* Constructs a new {@link LocalyticsSession} object.
*
* @param context The context used to access resources on behalf of the app. It is recommended to use
* {@link Context#getApplicationContext()} to avoid the potential memory leak incurred by maintaining references to
* {@code Activity} instances. Cannot be null.
* @param key The key unique for each application generated at www.localytics.com. Cannot be null or empty.
* @throws IllegalArgumentException if {@code context} is null
* @throws IllegalArgumentException if {@code key} is null or empty
*/
public LocalyticsSession(final Context context, final String key)
{
if (context == null)
{
throw new IllegalArgumentException("context cannot be null"); //$NON-NLS-1$
}
if (TextUtils.isEmpty(key))
{
throw new IllegalArgumentException("key cannot be null or empty"); //$NON-NLS-1$
}
/*
* Prevent the client from providing a subclass of Context that returns the Localytics package name.
*
* Note that because getPackageName() is a method and could theoretically return different results with each invocation,
* this check doesn't guarantee that a nefarious caller will be detected.
*/
if (Constants.LOCALYTICS_PACKAGE_NAME.equals(context.getPackageName())
&& !context.getClass().getName().equals("android.test.IsolatedContext") && !context.getClass().getName().equals("android.test.RenamingDelegatingContext")) //$NON-NLS-1$ //$NON-NLS-2$
{
throw new IllegalArgumentException(String.format("context.getPackageName() returned %s", context.getPackageName())); //$NON-NLS-1$
}
/*
* Get the application context to avoid having the Localytics object holding onto an Activity object. Using application
* context is very important to prevent the customer from giving the library multiple different contexts with different
* package names, which would corrupt the events in the database.
*
* Although RenamingDelegatingContext is part of the Android SDK, the class isn't present in the ClassLoader unless the
* process is being run as a unit test. For that reason, comparing class names is necessary instead of doing instanceof.
*
* Note that getting the application context may have unpredictable results for apps sharing a process running Android 2.1
* and earlier. See <http://code.google.com/p/android/issues/detail?id=4469> for details.
*/
mContext = !(context.getClass().getName().equals("android.test.RenamingDelegatingContext")) && Constants.CURRENT_API_LEVEL >= 8 ? context.getApplicationContext() : context; //$NON-NLS-1$
synchronized (sLocalyticsSessionIntrinsicLock)
{
SessionHandler handler = sLocalyticsSessionHandlerMap.get(key);
if (null == handler)
{
handler = new SessionHandler(mContext, key, sSessionHandlerThread.getLooper());
sLocalyticsSessionHandlerMap.put(key, handler);
/*
* Complete Handler initialization on a background thread. Note that this is not generally a good best practice,
* as the LocalyticsSession object (and its child objects) should be fully initialized by the time the constructor
* returns. However this implementation is safe, as the Handler will process this initialization message before
* any other message.
*/
handler.sendMessage(handler.obtainMessage(SessionHandler.MESSAGE_INIT));
}
mSessionHandler = handler;
}
}
/**
* Sets the Localytics opt-out state for this application. This call is not necessary and is provided for people who wish to
* allow their users the ability to opt out of data collection. It can be called at any time. Passing true causes all further
* data collection to stop, and an opt-out event to be sent to the server so the user's data is removed from the charts. <br>
* There are very serious implications to the quality of your data when providing an opt out option. For example, users who
* have opted out will appear as never returning, causing your new/returning chart to skew. <br>
* If two instances of the same application are running, and one is opted in and the second opts out, the first will also
* become opted out, and neither will collect any more data. <br>
* If a session was started while the app was opted out, the session open event has already been lost. For this reason, all
* sessions started while opted out will not collect data even after the user opts back in or else it taints the comparisons
* of session lengths and other metrics.
*
* @param isOptedOut True if the user should be be opted out and have all his Localytics data deleted.
*/
public void setOptOut(final boolean isOptedOut)
{
mSessionHandler.sendMessage(mSessionHandler.obtainMessage(SessionHandler.MESSAGE_OPT_OUT, isOptedOut ? 1 : 0, 0));
}
/**
* Behaves identically to calling {@code open(null)}.
*
* @see #open(List)
*/
public void open()
{
open(null);
}
/**
* Opens the Localytics session. The session should be opened before {@link #tagEvent(String)}, {@link #tagEvent(String, Map)}
* , {@link #tagEvent(String, Map, List)}, or {@link #tagScreen(String)} are called.
* <p>
* If a new session is opened shortly--within a few seconds--after an earlier session is closed, Localytics will reconnect to
* the previous session (effectively causing the previous close to be ignored). This ensures that as a user moves from
* Activity to Activity in an app, that is considered a single session. When a session is reconnected, the
* {@code customDimensions} for the initial open are kept and dimensions for the second open are ignored.
* <p>
* If for any reason open is called more than once without an intervening call to {@link #close()} or {@link #close(List)},
* subsequent calls to open will be ignored.
*
* @param customDimensions A set of custom reporting dimensions. If this parameter is null or empty, then no custom dimensions
* are recorded and the behavior with respect to custom dimensions is like simply calling {@link #open()}. The
* number of dimensions is capped at four. If there are more than four elements, the extra elements are ignored.
* This parameter may not contain null or empty elements. This parameter is only used for enterprise level
* accounts. For non-enterprise accounts, custom dimensions will be uploaded but will not be accessible in reports
* until the account is upgraded to enterprise status.
* @throws IllegalArgumentException if {@code customDimensions} contains null or empty elements.
*/
public void open(final List<String> customDimensions)
{
if (Constants.IS_PARAMETER_CHECKING_ENABLED)
{
if (null != customDimensions)
{
/*
* Calling this with empty dimensions is a smell that indicates a possible programming error on the part of the
* caller
*/
if (customDimensions.isEmpty())
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "customDimensions is empty. Did the caller make an error?"); //$NON-NLS-1$
}
}
if (customDimensions.size() > Constants.MAX_CUSTOM_DIMENSIONS)
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, String.format("customDimensions size is %d, exceeding the maximum size of %d. Did the caller make an error?", Integer.valueOf(customDimensions.size()), Integer.valueOf(Constants.MAX_CUSTOM_DIMENSIONS))); //$NON-NLS-1$
}
}
for (final String element : customDimensions)
{
if (null == element)
{
throw new IllegalArgumentException("customDimensions cannot contain null elements"); //$NON-NLS-1$
}
if (0 == element.length())
{
throw new IllegalArgumentException("customDimensions cannot contain empty elements"); //$NON-NLS-1$
}
}
}
}
if (null == customDimensions || customDimensions.isEmpty())
{
mSessionHandler.sendEmptyMessage(SessionHandler.MESSAGE_OPEN);
}
else
{
mSessionHandler.sendMessage(mSessionHandler.obtainMessage(SessionHandler.MESSAGE_OPEN, new TreeMap<String, String>(convertDimensionsToAttributes(customDimensions))));
}
}
/**
* Behaves identically to calling {@code close(null)}.
*
* @see #close(List)
*/
public void close()
{
close(null);
}
/**
* Closes the Localytics session. Once a session has been opened via {@link #open()} or {@link #open(List)}, close the session
* when data collection is complete.
* <p>
* If close is called without open having ever been called, the close has no effect. Similarly, once a session is closed,
* subsequent calls to close will be ignored.
*
* @param customDimensions A set of custom reporting dimensions. If this parameter is null or empty, then no custom dimensions
* are recorded and the behavior with respect to custom dimensions is like simply calling {@link #close()}. The
* number of dimensions is capped at four. If there are more than four elements, the extra elements are ignored.
* This parameter may not contain null or empty elements. This parameter is only used for enterprise level
* accounts. For non-enterprise accounts, custom dimensions will be uploaded but will not be accessible in reports
* until the account is upgraded to enterprise status.
* @throws IllegalArgumentException if {@code customDimensions} contains null or empty elements.
*/
public void close(final List<String> customDimensions)
{
if (Constants.IS_PARAMETER_CHECKING_ENABLED)
{
if (null != customDimensions)
{
/*
* Calling this with empty dimensions is a smell that indicates a possible programming error on the part of the
* caller
*/
if (customDimensions.isEmpty())
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "customDimensions is empty. Did the caller make an error?"); //$NON-NLS-1$
}
}
if (customDimensions.size() > Constants.MAX_CUSTOM_DIMENSIONS)
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, String.format("customDimensions size is %d, exceeding the maximum size of %d. Did the caller make an error?", Integer.valueOf(customDimensions.size()), Integer.valueOf(Constants.MAX_CUSTOM_DIMENSIONS))); //$NON-NLS-1$
}
}
for (final String element : customDimensions)
{
if (null == element)
{
throw new IllegalArgumentException("customDimensions cannot contain null elements"); //$NON-NLS-1$
}
if (0 == element.length())
{
throw new IllegalArgumentException("customDimensions cannot contain empty elements"); //$NON-NLS-1$
}
}
}
}
if (null == customDimensions || customDimensions.isEmpty())
{
mSessionHandler.sendEmptyMessage(SessionHandler.MESSAGE_CLOSE);
}
else
{
mSessionHandler.sendMessage(mSessionHandler.obtainMessage(SessionHandler.MESSAGE_CLOSE, new TreeMap<String, String>(convertDimensionsToAttributes(customDimensions))));
}
}
/**
* Behaves identically to calling {@code tagEvent(event, null, null)}.
*
* @see #tagEvent(String, Map, List)
* @param event The name of the event which occurred. Cannot be null or empty string.
* @throws IllegalArgumentException if {@code event} is null.
* @throws IllegalArgumentException if {@code event} is empty.
*/
public void tagEvent(final String event)
{
tagEvent(event, null);
}
/**
* Behaves identically to calling {@code tagEvent(event, attributes, null)}.
*
* @see #tagEvent(String, Map, List)
* @param event The name of the event which occurred. Cannot be null or empty string.
* @param attributes The collection of attributes for this particular event. If this parameter is null or empty, then calling
* this method has the same effect as calling {@link #tagEvent(String)}. This parameter may not contain null or
* empty keys or values.
* @throws IllegalArgumentException if {@code event} is null.
* @throws IllegalArgumentException if {@code event} is empty.
* @throws IllegalArgumentException if {@code attributes} contains null keys, empty keys, null values, or empty values.
*/
public void tagEvent(final String event, final Map<String, String> attributes)
{
tagEvent(event, attributes, null);
}
/**
* <p>
* Within the currently open session, tags that {@code event} occurred (with optionally included attributes and dimensions).
* </p>
* <p>
* Attributes: Additional key/value pairs with data related to an event. For example, let's say your app displays a dialog
* with two buttons: OK and Cancel. When the user clicks on one of the buttons, the event might be "button clicked." The
* attribute key might be "button_label" and the value would either be "OK" or "Cancel" depending on which button was clicked.
* </p>
* <p>
* Custom dimensions:
* (PREMIUM ONLY) Sets the value of a custom dimension. Custom dimensions are dimensions
* which contain user defined data unlike the predefined dimensions such as carrier, model, and country.
* The proper use of custom dimensions involves defining a dimension with less than ten distinct possible
* values and assigning it to one of the fogur available custom dimensions. Once assigned this definition should
* never be changed without changing the App Key otherwise old installs of the application will pollute new data.
* </p>
* <strong>Best Practices</strong>
* <ul>
* <li>DO NOT use events, attributes, or dimensions to record personally identifiable information.</li>
* <li>The best way to use events is to create all the event strings as predefined constants and only use those. This is more
* efficient and removes the risk of collecting personal information.</li>
* <li>Do not tag events inside loops or any other place which gets called frequently. This can cause a lot of data to be
* stored and uploaded.</li>
* </ul>
*
* @param event The name of the event which occurred. Cannot be null or empty string.
* @param attributes The collection of attributes for this particular event. If this parameter is null or empty, then no
* attributes are recorded and the behavior with respect to attributes is like simply calling
* {@link #tagEvent(String)}. This parameter may not contain null or empty keys or values.
* @param customDimensions A set of custom reporting dimensions. If this parameter is null or empty, then no custom dimensions
* are recorded and the behavior with respect to custom dimensions is like simply calling {@link #tagEvent(String)}
* . The number of dimensions is capped at four. If there are more than four elements, the extra elements are
* ignored. This parameter may not contain null or empty elements. This parameter is only used for enterprise level
* accounts. For non-enterprise accounts, custom dimensions will be uploaded but will not be accessible in reports
* until the account is upgraded to enterprise status.
* @throws IllegalArgumentException if {@code event} is null.
* @throws IllegalArgumentException if {@code event} is empty.
* @throws IllegalArgumentException if {@code attributes} contains null keys, empty keys, null values, or empty values.
* @throws IllegalArgumentException if {@code customDimensions} contains null or empty elements.
*/
public void tagEvent(final String event, final Map<String, String> attributes, final List<String> customDimensions)
{
if (Constants.IS_PARAMETER_CHECKING_ENABLED)
{
if (null == event)
{
throw new IllegalArgumentException("event cannot be null"); //$NON-NLS-1$
}
if (0 == event.length())
{
throw new IllegalArgumentException("event cannot be empty"); //$NON-NLS-1$
}
if (null != attributes)
{
/*
* Calling this with empty attributes is a smell that indicates a possible programming error on the part of the
* caller
*/
if (attributes.isEmpty())
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "attributes is empty. Did the caller make an error?"); //$NON-NLS-1$
}
}
if (attributes.size() > Constants.MAX_NUM_ATTRIBUTES)
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, String.format("attributes size is %d, exceeding the maximum size of %d. Did the caller make an error?", Integer.valueOf(attributes.size()), Integer.valueOf(Constants.MAX_NUM_ATTRIBUTES))); //$NON-NLS-1$
}
}
for (final Entry<String, String> entry : attributes.entrySet())
{
final String key = entry.getKey();
final String value = entry.getValue();
if (null == key)
{
throw new IllegalArgumentException("attributes cannot contain null keys"); //$NON-NLS-1$
}
if (null == value)
{
throw new IllegalArgumentException("attributes cannot contain null values"); //$NON-NLS-1$
}
if (0 == key.length())
{
throw new IllegalArgumentException("attributes cannot contain empty keys"); //$NON-NLS-1$
}
if (0 == value.length())
{
throw new IllegalArgumentException("attributes cannot contain empty values"); //$NON-NLS-1$
}
}
}
if (null != customDimensions)
{
/*
* Calling this with empty dimensions is a smell that indicates a possible programming error on the part of the
* caller
*/
if (customDimensions.isEmpty())
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "customDimensions is empty. Did the caller make an error?"); //$NON-NLS-1$
}
}
if (customDimensions.size() > Constants.MAX_CUSTOM_DIMENSIONS)
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, String.format("customDimensions size is %d, exceeding the maximum size of %d. Did the caller make an error?", Integer.valueOf(customDimensions.size()), Integer.valueOf(Constants.MAX_CUSTOM_DIMENSIONS))); //$NON-NLS-1$
}
}
for (final String element : customDimensions)
{
if (null == element)
{
throw new IllegalArgumentException("customDimensions cannot contain null elements"); //$NON-NLS-1$
}
if (0 == element.length())
{
throw new IllegalArgumentException("customDimensions cannot contain empty elements"); //$NON-NLS-1$
}
}
}
}
final String eventString = String.format(EVENT_FORMAT, mContext.getPackageName(), event);
if (null == attributes && null == customDimensions)
{
mSessionHandler.sendMessage(mSessionHandler.obtainMessage(SessionHandler.MESSAGE_TAG_EVENT, new Pair<String, Map<String, String>>(eventString, null)));
}
else
{
/*
* Convert the attributes and custom dimensions into the internal representation of packagename:key
*/
final TreeMap<String, String> remappedAttributes = new TreeMap<String, String>();
if (null != attributes)
{
final String packageName = mContext.getPackageName();
for (final Entry<String, String> entry : attributes.entrySet())
{
remappedAttributes.put(String.format(AttributesDbColumns.ATTRIBUTE_FORMAT, packageName, entry.getKey()), entry.getValue());
}
}
if (null != customDimensions)
{
remappedAttributes.putAll(convertDimensionsToAttributes(customDimensions));
}
/*
* Copying the map is very important to ensure that a client can't modify the map after this method is called. This is
* especially important because the map is subsequently processed on a background thread.
*
* A TreeMap is used to ensure that the order that the attributes are written is deterministic. For example, if the
* maximum number of attributes is exceeded the entries that occur later alphabetically will be skipped consistently.
*/
mSessionHandler.sendMessage(mSessionHandler.obtainMessage(SessionHandler.MESSAGE_TAG_EVENT, new Pair<String, Map<String, String>>(
eventString,
new TreeMap<String, String>(
remappedAttributes))));
}
}
/**
* Note: This implementation will perform duplicate suppression on two identical screen events that occur in a row within a
* single session. For example, in the set of screens {"Screen 1", "Screen 1"} the second screen would be suppressed. However
* in the set {"Screen 1", "Screen 2", "Screen 1"}, no duplicate suppression would occur.
*
* @param screen Name of the screen that was entered. Cannot be null or the empty string.
* @throws IllegalArgumentException if {@code event} is null.
* @throws IllegalArgumentException if {@code event} is empty.
*/
public void tagScreen(final String screen)
{
if (null == screen)
{
throw new IllegalArgumentException("event cannot be null"); //$NON-NLS-1$
}
if (0 == screen.length())
{
throw new IllegalArgumentException("event cannot be empty"); //$NON-NLS-1$
}
mSessionHandler.sendMessage(mSessionHandler.obtainMessage(SessionHandler.MESSAGE_TAG_SCREEN, screen));
}
public void setCustomerEmail(final String email)
{
setCustomerData("email", email);
}
public void setCustomerName(final String name)
{
setCustomerData("customer_name", name);
}
public void setCustomerId(final String customerId)
{
setCustomerData("customer_id", customerId);
}
public void setCustomerData(final String key, final String value)
{
if(null == key)
{
throw new IllegalArgumentException("key cannot be null"); //$NON-NLS-1$
}
mSessionHandler.sendMessage(mSessionHandler.obtainMessage(SessionHandler.MESSAGE_SET_IDENTIFIER, new Pair<String, String>(key, value)));
}
/**
* Initiates an upload of any Localytics data for this session's API key. This should be done early in the process life in
* order to guarantee as much time as possible for slow connections to complete. It is necessary to do this even if the user
* has opted out because this is how the opt out is transported to the webservice.
*/
public void upload()
{
mSessionHandler.sendMessage(mSessionHandler.obtainMessage(SessionHandler.MESSAGE_UPLOAD, null));
}
/*
* This is useful, but not necessarily needed for the public API. If so desired, someone can uncomment this out.
*/
// /**
// * Initiates an upload of any Localytics data for this session's API key. This should be done early in the process life in
// * order to guarantee as much time as possible for slow connections to complete. It is necessary to do this even if the user
// * has opted out because this is how the opt out is transported to the webservice.
// *
// * @param callback a Runnable to execute when the upload completes. A typical use case would be to notify the caller that
// the
// * upload has completed. This runnable will be executed on an undefined thread, so the caller should anticipate
// * this runnable NOT executing on the main thread or the thread that calls {@link #upload}. This parameter may be
// * null.
// */
// public void upload(final Runnable callback)
// {
// mSessionHandler.sendMessage(mSessionHandler.obtainMessage(SessionHandler.MESSAGE_UPLOAD, callback));
// }
/**
* Sorts an int value into a set of regular intervals as defined by the minimum, maximum, and step size. Both the min and max
* values are inclusive, and in the instance where (max - min + 1) is not evenly divisible by step size, the method guarantees
* only the minimum and the step size to be accurate to specification, with the new maximum will be moved to the next regular
* step.
*
* @param actualValue The int value to be sorted.
* @param minValue The int value representing the inclusive minimum interval.
* @param maxValue The int value representing the inclusive maximum interval.
* @param step The int value representing the increment of each interval.
* @return a ranged attribute suitable for passing as the argument to {@link #tagEvent(String)} or
* {@link #tagEvent(String, Map)}.
*/
public static String createRangedAttribute(final int actualValue, final int minValue, final int maxValue, final int step)
{
// Confirm there is at least one bucket
if (step < 1)
{
if (Constants.IS_LOGGABLE)
{
Log.v(Constants.LOG_TAG, "Step must not be less than zero. Returning null."); //$NON-NLS-1$
}
return null;
}
if (minValue >= maxValue)
{
if (Constants.IS_LOGGABLE)
{
Log.v(Constants.LOG_TAG, "maxValue must not be less than minValue. Returning null."); //$NON-NLS-1$
}
return null;
}
// Determine the number of steps, rounding up using int math
final int stepQuantity = (maxValue - minValue + step) / step;
final int[] steps = new int[stepQuantity + 1];
for (int currentStep = 0; currentStep <= stepQuantity; currentStep++)
{
steps[currentStep] = minValue + (currentStep) * step;
}
return createRangedAttribute(actualValue, steps);
}
/**
* Sorts an int value into a predefined, pre-sorted set of intervals, returning a string representing the new expected value.
* The array must be sorted in ascending order, with the first element representing the inclusive lower bound and the last
* element representing the exclusive upper bound. For instance, the array [0,1,3,10] will provide the following buckets: less
* than 0, 0, 1-2, 3-9, 10 or greater.
*
* @param actualValue The int value to be bucketed.
* @param steps The sorted int array representing the bucketing intervals.
* @return String representation of {@code actualValue} that has been bucketed into the range provided by {@code steps}.
* @throws IllegalArgumentException if {@code steps} is null.
* @throws IllegalArgumentException if {@code steps} has length 0.
*/
public static String createRangedAttribute(final int actualValue, final int[] steps)
{
if (null == steps)
{
throw new IllegalArgumentException("steps cannot be null"); //$NON-NLS-1$
}
if (steps.length == 0)
{
throw new IllegalArgumentException("steps length must be greater than 0"); //$NON-NLS-1$
}
String bucket = null;
// if less than smallest value
if (actualValue < steps[0])
{
bucket = "less than " + steps[0];
}
// if greater than largest value
else if (actualValue >= steps[steps.length - 1])
{
bucket = steps[steps.length - 1] + " and above";
}
else
{
// binarySearch returns the index of the value, or (-(insertion point) - 1) if not found
int bucketIndex = Arrays.binarySearch(steps, actualValue);
if (bucketIndex < 0)
{
// if the index wasn't found, then we want the value before the insertion point as the lower end
// the special case where the insertion point is 0 is covered above, so we don't have to worry about it here
bucketIndex = (-bucketIndex) - 2;
}
if (steps[bucketIndex] == (steps[bucketIndex + 1] - 1))
{
bucket = Integer.toString(steps[bucketIndex]);
}
else
{
bucket = steps[bucketIndex] + "-" + (steps[bucketIndex + 1] - 1); //$NON-NLS-1$
}
}
return bucket;
}
/**
* Helper to convert a list of dimensions into a set of attributes.
* <p>
* The number of dimensions is capped at 4. If there are more than 4 elements in {@code customDimensions}, all elements after
* 4 are ignored.
*
* @param customDimensions List of dimensions to convert.
* @return Attributes map for the set of dimensions.
*/
private static Map<String, String> convertDimensionsToAttributes(final List<String> customDimensions)
{
final TreeMap<String, String> attributes = new TreeMap<String, String>();
if (null != customDimensions)
{
int index = 0;
for (final String element : customDimensions)
{
if (0 == index)
{
attributes.put(AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_1, element);
}
else if (1 == index)
{
attributes.put(AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_2, element);
}
else if (2 == index)
{
attributes.put(AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_3, element);
}
else if (3 == index)
{
attributes.put(AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_4, element);
}
index++;
}
}
return attributes;
}
/**
* Helper class to handle session-related work on the {@link LocalyticsSession#sSessionHandlerThread}.
*/
/* package */static final class SessionHandler extends Handler
{
/**
* Empty handler message to initialize the callback.
* <p>
* This message must be sent before any other messages.
*/
public static final int MESSAGE_INIT = 0;
/**
* Handler message to open a session.
* <p>
* {@link Message#obj} is either null or a {@code Map<String, String>} containing attributes for the open.
*/
public static final int MESSAGE_OPEN = 1;
/**
* Handler message to close a session.
* <p>
* {@link Message#obj} is either null or a {@code Map<String, String>} containing attributes for the close.
*/
public static final int MESSAGE_CLOSE = 2;
/**
* Handler message to tag an event.
* <p>
* {@link Message#obj} is a {@link Pair} instance. This object cannot be null.
*/
public static final int MESSAGE_TAG_EVENT = 3;
/**
* Handler message to upload all data collected so far
* <p>
* {@link Message#obj} is a {@code Runnable} to execute when upload is complete. The thread that this runnable will
* executed on is undefined.
*/
public static final int MESSAGE_UPLOAD = 4;
/**
* Empty Handler message indicating that a previously requested upload attempt was completed. This does not mean the
* attempt was successful. A callback occurs regardless of whether upload succeeded.
*/
public static final int MESSAGE_UPLOAD_CALLBACK = 5;
/**
* Handler message indicating an opt-out choice.
* <p>
* {@link Message#arg1} == 1 for true (opt out). 0 means opt-in.
*/
public static final int MESSAGE_OPT_OUT = 6;
/**
* Handler message indicating a tag screen event
* <p>
* {@link Message#obj} is a string representing the screen visited.
*/
public static final int MESSAGE_TAG_SCREEN = 7;
/**
* Handler message indicating a set identifier action
* <p>
* {@link Message#obj} is a string representing the screen visited.
*/
public static final int MESSAGE_SET_IDENTIFIER = 8;
/**
* Sort order for the upload blobs.
* <p>
* This is a workaround for Android bug 3707 <http://code.google.com/p/android/issues/detail?id=3707>.
*/
private static final String UPLOAD_BLOBS_EVENTS_SORT_ORDER = String.format("CAST(%s AS TEXT)", UploadBlobEventsDbColumns.EVENTS_KEY_REF); //$NON-NLS-1$
/**
* Sort order for the events.
* <p>
* This is a workaround for Android bug 3707 <http://code.google.com/p/android/issues/detail?id=3707>.
*/
private static final String EVENTS_SORT_ORDER = String.format("CAST(%s as TEXT)", EventsDbColumns._ID); //$NON-NLS-1$
/**
* Application context
*/
private final Context mContext;
/**
* Localytics database
*/
protected LocalyticsProvider mProvider;
/**
* The Localytics API key for the session.
*/
private final String mApiKey;
/**
* {@link ApiKeysDbColumns#_ID} for the API key used by this Localytics session handler.
*/
private long mApiKeyId;
/**
* Handler object where all upload of this instance of LocalyticsSession are handed off to.
* <p>
* This handler runs on {@link #sUploadHandlerThread}.
*/
private Handler mUploadHandler;
/**
* Constructs a new Handler that runs on the given looper.
*
* @param context The context used to access resources on behalf of the app. It is recommended to use
* {@link Context#getApplicationContext()} to avoid the potential memory leak incurred by maintaining
* references to {@code Activity} instances. Cannot be null.
* @param key The key unique for each application generated at www.localytics.com. Cannot be null or empty.
* @param looper to run the Handler on. Cannot be null.
* @throws IllegalArgumentException if {@code context} is null
* @throws IllegalArgumentException if {@code key} is null or empty
*/
public SessionHandler(final Context context, final String key, final Looper looper)
{
super(looper);
if (Constants.IS_PARAMETER_CHECKING_ENABLED)
{
if (null == context)
{
throw new IllegalArgumentException("context cannot be null"); //$NON-NLS-1$
}
if (TextUtils.isEmpty(key))
{
throw new IllegalArgumentException("key cannot be null or empty"); //$NON-NLS-1$
}
}
mContext = context;
mApiKey = key;
}
@Override
public void handleMessage(final Message msg)
{
try
{
super.handleMessage(msg);
if (Constants.IS_LOGGABLE)
{
Log.v(Constants.LOG_TAG, String.format("Handler received %s", msg)); //$NON-NLS-1$
}
switch (msg.what)
{
case MESSAGE_INIT:
{
if (Constants.IS_LOGGABLE)
{
Log.v(Constants.LOG_TAG, "Handler received MESSAGE_INIT"); //$NON-NLS-1$
}
SessionHandler.this.init();
break;
}
case MESSAGE_OPT_OUT:
{
if (Constants.IS_LOGGABLE)
{
Log.v(Constants.LOG_TAG, "Handler received MESSAGE_OPT_OUT"); //$NON-NLS-1$
}
final boolean isOptingOut = msg.arg1 == 0 ? false : true;
mProvider.runBatchTransaction(new Runnable()
{
public void run()
{
SessionHandler.this.optOut(isOptingOut);
}
});
break;
}
case MESSAGE_OPEN:
{
if (Constants.IS_LOGGABLE)
{
Log.v(Constants.LOG_TAG, "Handler received MESSAGE_OPEN"); //$NON-NLS-1$
}
mProvider.runBatchTransaction(new Runnable()
{
@SuppressWarnings("unchecked")
public void run()
{
SessionHandler.this.open(false, (Map<String, String>) msg.obj);
}
});
break;
}
case MESSAGE_CLOSE:
{
if (Constants.IS_LOGGABLE)
{
Log.d(Constants.LOG_TAG, "Handler received MESSAGE_CLOSE"); //$NON-NLS-1$
}
mProvider.runBatchTransaction(new Runnable()
{
@SuppressWarnings("unchecked")
public void run()
{
SessionHandler.this.close((Map<String, String>) msg.obj);
}
});
break;
}
case MESSAGE_TAG_EVENT:
{
if (Constants.IS_LOGGABLE)
{
Log.d(Constants.LOG_TAG, "Handler received MESSAGE_TAG_EVENT"); //$NON-NLS-1$
}
@SuppressWarnings("unchecked")
final Pair<String, Map<String, String>> pair = (Pair<String, Map<String, String>>) msg.obj;
final String event = pair.first;
final Map<String, String> attributes = pair.second;
mProvider.runBatchTransaction(new Runnable()
{
public void run()
{
if (null != getOpenSessionId(mProvider))
{
tagEvent(event, attributes);
}
else
{
/*
* The open and close only care about custom dimensions
*/
final Map<String, String> openCloseAttributes;
if (null == attributes)
{
openCloseAttributes = null;
}
else if (attributes.containsKey(AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_1)
|| attributes.containsKey(AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_2)
|| attributes.containsKey(AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_3)
|| attributes.containsKey(AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_4))
{
openCloseAttributes = new TreeMap<String, String>();
if (attributes.containsKey(AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_1))
{
openCloseAttributes.put(AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_1, attributes.get(AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_1));
}
if (attributes.containsKey(AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_2))
{
openCloseAttributes.put(AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_2, attributes.get(AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_2));
}
if (attributes.containsKey(AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_3))
{
openCloseAttributes.put(AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_3, attributes.get(AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_3));
}
if (attributes.containsKey(AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_4))
{
openCloseAttributes.put(AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_4, attributes.get(AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_4));
}
}
else
{
openCloseAttributes = null;
}
open(false, openCloseAttributes);
tagEvent(event, attributes);
close(openCloseAttributes);
}
}
});
break;
}
case MESSAGE_TAG_SCREEN:
{
if (Constants.IS_LOGGABLE)
{
Log.d(Constants.LOG_TAG, "Handler received MESSAGE_TAG_SCREEN"); //$NON-NLS-1$
}
final String screen = (String) msg.obj;
mProvider.runBatchTransaction(new Runnable()
{
public void run()
{
SessionHandler.this.tagScreen(screen);
}
});
break;
}
case MESSAGE_SET_IDENTIFIER:
{
if (Constants.IS_LOGGABLE)
{
Log.d(Constants.LOG_TAG, "Handler received MESSAGE_SET_IDENTIFIER"); //$NON-NLS-1$
}
@SuppressWarnings("unchecked")
final Pair<String, String> pair = (Pair<String, String>) msg.obj;
final String key = pair.first;
final String value = pair.second;
mProvider.runBatchTransaction(new Runnable()
{
public void run()
{
SessionHandler.this.setIdentifier(key, value);
}
});
break;
}
case MESSAGE_UPLOAD:
{
if (Constants.IS_LOGGABLE)
{
Log.d(Constants.LOG_TAG, "SessionHandler received MESSAGE_UPLOAD"); //$NON-NLS-1$
}
/*
* Note that callback may be null
*/
final Runnable callback = (Runnable) msg.obj;
mProvider.runBatchTransaction(new Runnable()
{
public void run()
{
SessionHandler.this.upload(callback);
}
});
break;
}
case MESSAGE_UPLOAD_CALLBACK:
{
if (Constants.IS_LOGGABLE)
{
Log.d(Constants.LOG_TAG, "Handler received MESSAGE_UPLOAD_CALLBACK"); //$NON-NLS-1$
}
sIsUploadingMap.put(mApiKey, Boolean.FALSE);
break;
}
default:
{
/*
* This should never happen
*/
throw new RuntimeException("Fell through switch statement"); //$NON-NLS-1$
}
}
}
catch (final Exception e)
{
if (Constants.IS_LOGGABLE)
{
Log.e(Constants.LOG_TAG, "Localytics library threw an uncaught exception", e); //$NON-NLS-1$
}
if (!Constants.IS_EXCEPTION_SUPPRESSION_ENABLED)
{
throw new RuntimeException(e);
}
}
}
/**
* Projection for querying details of the current API key
*/
private static final String[] PROJECTION_INIT_API_KEY = new String[]
{
ApiKeysDbColumns._ID,
ApiKeysDbColumns.OPT_OUT,
ApiKeysDbColumns.UUID };
/**
* Selection for a specific API key ID
*/
private static final String SELECTION_INIT_API_KEY = String.format("%s = ?", ApiKeysDbColumns.API_KEY); //$NON-NLS-1$
/**
* Initialize the handler post construction.
* <p>
* This method must only be called once.
* <p>
* Note: This method is a private implementation detail. It is only made package accessible for unit testing purposes. The
* public interface is to send {@link #MESSAGE_INIT} to the Handler.
*
* @see #MESSAGE_INIT
*/
/* package */void init()
{
mProvider = LocalyticsProvider.getInstance(mContext, mApiKey);
Cursor cursor = null;
try
{
cursor = mProvider.query(ApiKeysDbColumns.TABLE_NAME, PROJECTION_INIT_API_KEY, SELECTION_INIT_API_KEY, new String[]
{ mApiKey }, null);
if (cursor.moveToFirst())
{
// API key was previously created
if (Constants.IS_LOGGABLE)
{
Log.v(Constants.LOG_TAG, String.format("Loading details for API key %s", mApiKey)); //$NON-NLS-1$
}
mApiKeyId = cursor.getLong(cursor.getColumnIndexOrThrow(ApiKeysDbColumns._ID));
}
else
{
// perform first-time initialization of API key
if (Constants.IS_LOGGABLE)
{
Log.v(Constants.LOG_TAG, String.format("Performing first-time initialization for new API key %s", mApiKey)); //$NON-NLS-1$
}
final ContentValues values = new ContentValues();
values.put(ApiKeysDbColumns.API_KEY, mApiKey);
values.put(ApiKeysDbColumns.UUID, UUID.randomUUID().toString());
values.put(ApiKeysDbColumns.OPT_OUT, Boolean.FALSE);
values.put(ApiKeysDbColumns.CREATED_TIME, Long.valueOf(System.currentTimeMillis()));
mApiKeyId = mProvider.insert(ApiKeysDbColumns.TABLE_NAME, values);
}
}
finally
{
if (null != cursor)
{
cursor.close();
cursor = null;
}
}
if (!sIsUploadingMap.containsKey(mApiKey))
{
sIsUploadingMap.put(mApiKey, Boolean.FALSE);
}
/*
* Perform lazy initialization of the UploadHandler
*/
mUploadHandler = new UploadHandler(mContext, this, mApiKey, getInstallationId(mProvider, mApiKey), getFBAttribution(mProvider), getFirstRunStatus(mProvider), sUploadHandlerThread.getLooper());
}
/**
* Selection for {@link #optOut(boolean)}.
*/
private static final String SELECTION_OPT_IN_OUT = String.format("%s = ?", ApiKeysDbColumns._ID); //$NON-NLS-1$
/**
* Set the opt-in/out-out state for all sessions using the current API key.
* <p>
* This method must only be called after {@link #init()} is called.
* <p>
* Note: This method is a private implementation detail. It is only made package accessible for unit testing purposes. The
* public interface is to send {@link #MESSAGE_OPT_OUT} to the Handler.
* <p>
* If a session is already open when an opt-out request is made, then data for the remainder of that session will be
* collected. For example, calls to {@link #tagEvent(String, Map)} and {@link #tagScreen(String)} will be recorded until
* {@link #close(Map)} is called.
* <p>
* If a session is not already open when an opt-out request is made, a new session is opened and closed by this method in
* order to cause the opt-out event to be uploaded.
*
* @param isOptingOut true if the user is opting out. False if the user is opting back in.
* @see #MESSAGE_OPT_OUT
*/
/* package */void optOut(final boolean isOptingOut)
{
if (Constants.IS_LOGGABLE)
{
Log.v(Constants.LOG_TAG, String.format("Requested opt-out state is %b", Boolean.valueOf(isOptingOut))); //$NON-NLS-1$
}
// Do nothing if opt-out is unchanged
if (isOptedOut(mProvider, mApiKey) == isOptingOut)
{
return;
}
if (null == getOpenSessionId(mProvider))
{
/*
* Force a session to contain the opt event
*/
open(true, null);
tagEvent(isOptingOut ? OPT_OUT_EVENT : OPT_IN_EVENT, null);
close(null);
}
else
{
tagEvent(isOptingOut ? OPT_OUT_EVENT : OPT_IN_EVENT, null);
}
final ContentValues values = new ContentValues();
values.put(ApiKeysDbColumns.OPT_OUT, Boolean.valueOf(isOptingOut));
mProvider.update(ApiKeysDbColumns.TABLE_NAME, values, SELECTION_OPT_IN_OUT, new String[]
{ Long.toString(mApiKeyId) });
}
/**
* Projection for {@link #getOpenSessionId(LocalyticsProvider)}.
*/
private static final String[] PROJECTION_GET_OPEN_SESSION_ID_SESSION_ID = new String[]
{ SessionsDbColumns._ID };
/**
* Projection for getting the event count in {@link #getOpenSessionId(LocalyticsProvider)}.
*/
private static final String[] PROJECTION_GET_OPEN_SESSION_ID_EVENT_COUNT = new String[]
{ EventsDbColumns._COUNT };
/**
* Selection for {@link #getOpenSessionId(LocalyticsProvider)}.
*/
private static final String SELECTION_GET_OPEN_SESSION_ID_EVENT_COUNT = String.format("%s = ? AND %s = ?", EventsDbColumns.SESSION_KEY_REF, EventsDbColumns.EVENT_NAME);
/**
* @param provider The database to query. Cannot be null.
* @return The {@link SessionsDbColumns#_ID} of the currently open session or {@code null} if no session is open. The
* definition of "open" is whether a session has been opened without a corresponding close event.
*/
/* package */static Long getOpenSessionId(final LocalyticsProvider provider)
{
/*
* Get the ID of the last session
*/
final Long sessionId;
{
Cursor sessionsCursor = null;
try
{
/*
* Query all sessions sorted by session ID, which guarantees to obtain the last session regardless of whether
* the system clock changed.
*/
sessionsCursor = provider.query(SessionsDbColumns.TABLE_NAME, PROJECTION_GET_OPEN_SESSION_ID_SESSION_ID, null, null, SessionsDbColumns._ID);
if (sessionsCursor.moveToLast())
{
sessionId = Long.valueOf(sessionsCursor.getLong(sessionsCursor.getColumnIndexOrThrow(SessionsDbColumns._ID)));
}
else
{
return null;
}
}
finally
{
if (null != sessionsCursor)
{
sessionsCursor.close();
sessionsCursor = null;
}
}
}
/*
* See if the session has a close event.
*/
Cursor eventsCursor = null;
try
{
eventsCursor = provider.query(EventsDbColumns.TABLE_NAME, PROJECTION_GET_OPEN_SESSION_ID_EVENT_COUNT, SELECTION_GET_OPEN_SESSION_ID_EVENT_COUNT, new String[]
{
sessionId.toString(),
CLOSE_EVENT }, null);
if (eventsCursor.moveToFirst())
{
if (0 == eventsCursor.getInt(0))
{
return sessionId;
}
}
}
finally
{
if (null != eventsCursor)
{
eventsCursor.close();
eventsCursor = null;
}
}
return null;
}
/**
* Projection for {@link #open(boolean, Map)}.
*/
private static final String[] PROJECTION_OPEN_EVENT_ID = new String[]
{ EventsDbColumns._ID };
/**
* Selection for {@link #open(boolean, Map)}.
*/
private static final String SELECTION_OPEN = String.format("%s = ? AND %s >= ?", EventsDbColumns.EVENT_NAME, EventsDbColumns.WALL_TIME); //$NON-NLS-1$
/**
* Projection for {@link #open(boolean, Map)}.
*/
private static final String[] PROJECTION_OPEN_BLOB_EVENTS = new String[]
{ UploadBlobEventsDbColumns.EVENTS_KEY_REF };
/**
* Projection for {@link #open(boolean, Map)}.
*/
private static final String[] PROJECTION_OPEN_SESSIONS = new String[]
{
SessionsDbColumns._ID,
SessionsDbColumns.SESSION_START_WALL_TIME };
/**
* Selection for {@link #openNewSession(Map)}.
*/
private static final String SELECTION_OPEN_NEW_SESSION = String.format("%s = ?", ApiKeysDbColumns.API_KEY); //$NON-NLS-1$
/**
* Selection for {@link #open(boolean, Map)}.
*/
private static final String SELECTION_OPEN_DELETE_EMPTIES_EVENT_HISTORY_SESSION_KEY_REF = String.format("%s = ?", EventHistoryDbColumns.SESSION_KEY_REF); //$NON-NLS-1$
/**
* Selection for {@link #open(boolean, Map)}.
*/
private static final String SELECTION_OPEN_DELETE_EMPTIES_EVENTS_SESSION_KEY_REF = String.format("%s = ?", EventsDbColumns.SESSION_KEY_REF); //$NON-NLS-1$
/**
* Projection for {@link #open(boolean, Map)}.
*/
private static final String[] PROJECTION_OPEN_DELETE_EMPTIES_EVENT_ID = new String[]
{ EventsDbColumns._ID };
/**
* Projection for {@link #open(boolean, Map)}.
*/
private static final String[] PROJECTION_OPEN_DELETE_EMPTIES_PROCESSED_IN_BLOB = new String[]
{ EventHistoryDbColumns.PROCESSED_IN_BLOB };
/**
* Selection for {@link #open(boolean, Map)}.
*/
private static final String SELECTION_OPEN_DELETE_EMPTIES_UPLOAD_BLOBS_ID = String.format("%s = ?", UploadBlobsDbColumns._ID); //$NON-NLS-1$
/**
* Selection for {@link #open(boolean, Map)}.
*/
private static final String SELECTION_OPEN_DELETE_EMPTIES_SESSIONS_ID = String.format("%s = ?", SessionsDbColumns._ID); //$NON-NLS-1$
/**
* Open a session. While this method should only be called once without an intervening call to {@link #close(Map)},
* nothing bad will happen if it is called multiple times.
* <p>
* This method must only be called after {@link #init()} is called.
* <p>
* Note: This method is a private implementation detail. It is only made package accessible for unit testing purposes. The
* public interface is to send {@link #MESSAGE_OPEN} to the Handler.
*
* @param ignoreLimits true to ignore limits on the number of sessions. False to enforce limits.
* @param attributes Attributes to attach to the open. May be null indicating no attributes. Cannot contain null or empty
* keys or values.
* @see #MESSAGE_OPEN
*/
/* package */void open(final boolean ignoreLimits, final Map<String, String> attributes)
{
// if (null != getOpenSessionId(mProvider))
// {
// if (Constants.IS_LOGGABLE)
// {
// Log.w(Constants.LOG_TAG, "Session was already open"); //$NON-NLS-1$
// }
//
// return;
// }
if (isOptedOut(mProvider, mApiKey))
{
if (Constants.IS_LOGGABLE)
{
Log.d(Constants.LOG_TAG, "Data collection is opted out"); //$NON-NLS-1$
}
return;
}
/*
* There are two cases: 1. New session and 2. Re-connect to old session. There are two ways to reconnect to an old
* session. One is by the age of the close event, and the other is by the age of the open event.
*/
long closeEventId = -1; // sentinel value
{
Cursor eventsCursor = null;
Cursor blob_eventsCursor = null;
try
{
eventsCursor = mProvider.query(EventsDbColumns.TABLE_NAME, PROJECTION_OPEN_EVENT_ID, SELECTION_OPEN, new String[]
{
CLOSE_EVENT,
Long.toString(System.currentTimeMillis() - Constants.SESSION_EXPIRATION) }, EVENTS_SORT_ORDER);
blob_eventsCursor = mProvider.query(UploadBlobEventsDbColumns.TABLE_NAME, PROJECTION_OPEN_BLOB_EVENTS, null, null, UPLOAD_BLOBS_EVENTS_SORT_ORDER);
final int idColumn = eventsCursor.getColumnIndexOrThrow(EventsDbColumns._ID);
final CursorJoiner joiner = new CursorJoiner(eventsCursor, PROJECTION_OPEN_EVENT_ID, blob_eventsCursor, PROJECTION_OPEN_BLOB_EVENTS);
for (final CursorJoiner.Result joinerResult : joiner)
{
switch (joinerResult)
{
case LEFT:
{
if (-1 != closeEventId)
{
/*
* This should never happen
*/
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "There were multiple close events within SESSION_EXPIRATION"); //$NON-NLS-1$
}
final long newClose = eventsCursor.getLong(eventsCursor.getColumnIndexOrThrow(EventsDbColumns._ID));
if (newClose > closeEventId)
{
closeEventId = newClose;
}
}
if (-1 == closeEventId)
{
closeEventId = eventsCursor.getLong(idColumn);
}
break;
}
case BOTH:
break;
case RIGHT:
break;
}
}
/*
* Verify that the session hasn't already been flagged for upload. That could happen if
*/
}
finally
{
if (null != eventsCursor)
{
eventsCursor.close();
eventsCursor = null;
}
if (null != blob_eventsCursor)
{
blob_eventsCursor.close();
blob_eventsCursor = null;
}
}
}
if (-1 != closeEventId)
{
if (Constants.IS_LOGGABLE)
{
Log.v(Constants.LOG_TAG, "Opening old closed session and reconnecting"); //$NON-NLS-1$
}
openClosedSession(closeEventId);
}
else
{
Cursor sessionsCursor = null;
try
{
sessionsCursor = mProvider.query(SessionsDbColumns.TABLE_NAME, PROJECTION_OPEN_SESSIONS, null, null, SessionsDbColumns._ID);
if (sessionsCursor.moveToLast())
{
if (sessionsCursor.getLong(sessionsCursor.getColumnIndexOrThrow(SessionsDbColumns.SESSION_START_WALL_TIME)) >= System.currentTimeMillis()
- Constants.SESSION_EXPIRATION)
{
// reconnect
if (Constants.IS_LOGGABLE)
{
Log.v(Constants.LOG_TAG, "Opening old unclosed session and reconnecting"); //$NON-NLS-1$
}
return;
}
// delete empties
Cursor eventsCursor = null;
try
{
final String sessionId = Long.toString(sessionsCursor.getLong(sessionsCursor.getColumnIndexOrThrow(SessionsDbColumns._ID)));
final String[] sessionIdSelection = new String[]
{ sessionId };
eventsCursor = mProvider.query(EventsDbColumns.TABLE_NAME, PROJECTION_OPEN_DELETE_EMPTIES_EVENT_ID, SELECTION_OPEN_DELETE_EMPTIES_EVENTS_SESSION_KEY_REF, sessionIdSelection, null);
if (eventsCursor.getCount() == 0)
{
final List<Long> blobsToDelete = new LinkedList<Long>();
// delete all event history and the upload blob
Cursor eventHistory = null;
try
{
eventHistory = mProvider.query(EventHistoryDbColumns.TABLE_NAME, PROJECTION_OPEN_DELETE_EMPTIES_PROCESSED_IN_BLOB, SELECTION_OPEN_DELETE_EMPTIES_EVENT_HISTORY_SESSION_KEY_REF, sessionIdSelection, null);
while (eventHistory.moveToNext())
{
blobsToDelete.add(Long.valueOf(eventHistory.getLong(eventHistory.getColumnIndexOrThrow(EventHistoryDbColumns.PROCESSED_IN_BLOB))));
}
}
finally
{
if (null != eventHistory)
{
eventHistory.close();
eventHistory = null;
}
}
mProvider.delete(EventHistoryDbColumns.TABLE_NAME, SELECTION_OPEN_DELETE_EMPTIES_EVENT_HISTORY_SESSION_KEY_REF, sessionIdSelection);
for (final long blobId : blobsToDelete)
{
mProvider.delete(UploadBlobsDbColumns.TABLE_NAME, SELECTION_OPEN_DELETE_EMPTIES_UPLOAD_BLOBS_ID, new String[]
{ Long.toString(blobId) });
}
// mProvider.delete(AttributesDbColumns.TABLE_NAME, String.format("%s = ?",
// AttributesDbColumns.EVENTS_KEY_REF), selectionArgs)
mProvider.delete(SessionsDbColumns.TABLE_NAME, SELECTION_OPEN_DELETE_EMPTIES_SESSIONS_ID, sessionIdSelection);
}
}
finally
{
if (null != eventsCursor)
{
eventsCursor.close();
eventsCursor = null;
}
}
}
}
finally
{
if (null != sessionsCursor)
{
sessionsCursor.close();
sessionsCursor = null;
}
}
/*
* Check that the maximum number of sessions hasn't been exceeded
*/
if (!ignoreLimits && getNumberOfSessions(mProvider) >= Constants.MAX_NUM_SESSIONS)
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "Maximum number of sessions are already on disk--not writing any new sessions until old sessions are cleared out. Try calling upload() to store more sessions."); //$NON-NLS-1$
}
}
else
{
if (Constants.IS_LOGGABLE)
{
Log.v(Constants.LOG_TAG, "Opening new session"); //$NON-NLS-1$
}
openNewSession(attributes);
}
}
}
/**
* Opens a new session. This is a helper method to {@link #open(boolean, Map)}.
*
* @effects Updates the database by creating a new entry in the {@link SessionsDbColumns} table.
* @param attributes Attributes to attach to the session. May be null. Cannot contain null or empty keys or values.
*/
private void openNewSession(final Map<String, String> attributes)
{
final TelephonyManager telephonyManager = (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE);
final ContentValues values = new ContentValues();
values.put(SessionsDbColumns.API_KEY_REF, Long.valueOf(mApiKeyId));
values.put(SessionsDbColumns.SESSION_START_WALL_TIME, Long.valueOf(System.currentTimeMillis()));
values.put(SessionsDbColumns.UUID, UUID.randomUUID().toString());
values.put(SessionsDbColumns.APP_VERSION, DatapointHelper.getAppVersion(mContext));
values.put(SessionsDbColumns.ANDROID_SDK, Integer.valueOf(Constants.CURRENT_API_LEVEL));
values.put(SessionsDbColumns.ANDROID_VERSION, VERSION.RELEASE);
// Try and get the deviceId. If it is unavailable (or invalid) use the installation ID instead.
String deviceId = DatapointHelper.getAndroidIdHashOrNull(mContext);
if (null == deviceId)
{
Cursor cursor = null;
try
{
cursor = mProvider.query(ApiKeysDbColumns.TABLE_NAME, null, SELECTION_OPEN_NEW_SESSION, new String[]
{ mApiKey }, null);
if (cursor.moveToFirst())
{
deviceId = cursor.getString(cursor.getColumnIndexOrThrow(ApiKeysDbColumns.UUID));
}
}
finally
{
if (null != cursor)
{
cursor.close();
cursor = null;
}
}
}
values.put(SessionsDbColumns.DEVICE_ANDROID_ID_HASH, deviceId);
values.put(SessionsDbColumns.DEVICE_COUNTRY, telephonyManager.getSimCountryIso());
values.put(SessionsDbColumns.DEVICE_MANUFACTURER, DatapointHelper.getManufacturer());
values.put(SessionsDbColumns.DEVICE_MODEL, Build.MODEL);
values.put(SessionsDbColumns.DEVICE_SERIAL_NUMBER_HASH, DatapointHelper.getSerialNumberHashOrNull());
values.put(SessionsDbColumns.DEVICE_TELEPHONY_ID, DatapointHelper.getTelephonyDeviceIdOrNull(mContext));
values.put(SessionsDbColumns.DEVICE_TELEPHONY_ID_HASH, DatapointHelper.getTelephonyDeviceIdHashOrNull(mContext));
values.put(SessionsDbColumns.DEVICE_WIFI_MAC_HASH, DatapointHelper.getWifiMacHashOrNull(mContext));
values.put(SessionsDbColumns.LOCALE_COUNTRY, Locale.getDefault().getCountry());
values.put(SessionsDbColumns.LOCALE_LANGUAGE, Locale.getDefault().getLanguage());
values.put(SessionsDbColumns.LOCALYTICS_LIBRARY_VERSION, Constants.LOCALYTICS_CLIENT_LIBRARY_VERSION);
values.put(SessionsDbColumns.LOCALYTICS_INSTALLATION_ID, getInstallationId(mProvider, mApiKey));
values.putNull(SessionsDbColumns.LATITUDE);
values.putNull(SessionsDbColumns.LONGITUDE);
values.put(SessionsDbColumns.NETWORK_CARRIER, telephonyManager.getNetworkOperatorName());
values.put(SessionsDbColumns.NETWORK_COUNTRY, telephonyManager.getNetworkCountryIso());
values.put(SessionsDbColumns.NETWORK_TYPE, DatapointHelper.getNetworkType(mContext, telephonyManager));
long sessionId = mProvider.insert(SessionsDbColumns.TABLE_NAME, values);
if (sessionId == -1)
{
throw new AssertionError("session insert failed"); //$NON-NLS-1$
}
tagEvent(OPEN_EVENT, attributes);
/*
* This is placed here so that the DatapointHelper has a chance to retrieve the old UUID before it is deleted.
*/
LocalyticsProvider.deleteOldFiles(mContext);
}
/**
* Projection for getting the installation ID. Used by {@link #getInstallationId(LocalyticsProvider, String)}.
*/
private static final String[] PROJECTION_GET_INSTALLATION_ID = new String[]
{ ApiKeysDbColumns.UUID };
/**
* Selection for a specific API key ID. Used by {@link #getInstallationId(LocalyticsProvider, String)}.
*/
private static final String SELECTION_GET_INSTALLATION_ID = String.format("%s = ?", ApiKeysDbColumns.API_KEY); //$NON-NLS-1$
/**
* Gets the installation ID of the API key.
*/
private static String getInstallationId(final LocalyticsProvider provider, final String apiKey)
{
Cursor cursor = null;
try
{
cursor = provider.query(ApiKeysDbColumns.TABLE_NAME, PROJECTION_GET_INSTALLATION_ID, SELECTION_GET_INSTALLATION_ID, new String[]
{ apiKey }, null);
if (cursor.moveToFirst())
{
return cursor.getString(cursor.getColumnIndexOrThrow(ApiKeysDbColumns.UUID));
}
}
finally
{
if (null != cursor)
{
cursor.close();
cursor = null;
}
}
/*
* This error case shouldn't normally happen
*/
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "Installation ID couldn't be found"); //$NON-NLS-1$
}
return null;
}
/**
* Gets first run status for a given API key
*
* @param provider Localytics database provider. Cannot be null.
* @return A boolean representing if this is the first run for the API key
*/
/* package */static boolean getFirstRunStatus(final LocalyticsProvider provider)
{
Cursor cursor = null;
try
{
cursor = provider.query(InfoDbColumns.TABLE_NAME, null, null, null, null); //$NON-NLS-1$
if (cursor.moveToFirst())
{
return cursor.getLong(cursor.getColumnIndexOrThrow(InfoDbColumns.FIRST_RUN)) == 1;
}
}
finally
{
if (null != cursor)
{
cursor.close();
cursor = null;
}
}
return false;
}
/**
* Gets Facebook attributon cookie for an app key
*
* @param provider Localytics database provider. Cannot be null.
* @return The FB attribution cookie.
*/
/* package */static String getFBAttribution(final LocalyticsProvider provider)
{
Cursor cursor = null;
try
{
cursor = provider.query(InfoDbColumns.TABLE_NAME, null, null, null, null); //$NON-NLS-1$
if (cursor.moveToFirst())
{
return cursor.getString(cursor.getColumnIndexOrThrow(InfoDbColumns.FB_ATTRIBUTION));
}
}
finally
{
if (null != cursor)
{
cursor.close();
cursor = null;
}
}
return null;
}
/**
* Projection for {@link #openClosedSession(long)}.
*/
private static final String[] PROJECTION_OPEN_CLOSED_SESSION = new String[]
{ EventsDbColumns.SESSION_KEY_REF };
/**
* Selection for {@link #openClosedSession(long)}.
*/
private static final String SELECTION_OPEN_CLOSED_SESSION = String.format("%s = ?", EventsDbColumns._ID); //$NON-NLS-1$
/**
* Selection for {@link #openClosedSession(long)}.
*/
private static final String SELECTION_OPEN_CLOSED_SESSION_ATTRIBUTES = String.format("%s = ?", AttributesDbColumns.EVENTS_KEY_REF); //$NON-NLS-1$
/**
* Reopens a previous session. This is a helper method to {@link #open(boolean, Map)}.
*
* @param closeEventId The last close event which is to be deleted so that the old session can be reopened
* @effects Updates the database by deleting the last close event.
*/
private void openClosedSession(final long closeEventId)
{
final String[] selectionArgs = new String[]
{ Long.toString(closeEventId) };
Cursor cursor = null;
try
{
cursor = mProvider.query(EventsDbColumns.TABLE_NAME, PROJECTION_OPEN_CLOSED_SESSION, SELECTION_OPEN_CLOSED_SESSION, selectionArgs, null);
if (cursor.moveToFirst())
{
mProvider.delete(AttributesDbColumns.TABLE_NAME, SELECTION_OPEN_CLOSED_SESSION_ATTRIBUTES, selectionArgs);
mProvider.delete(EventsDbColumns.TABLE_NAME, SELECTION_OPEN_CLOSED_SESSION, selectionArgs);
}
else
{
/*
* This should never happen
*/
if (Constants.IS_LOGGABLE)
{
Log.e(Constants.LOG_TAG, "Event no longer exists"); //$NON-NLS-1$
}
openNewSession(null);
}
}
finally
{
if (null != cursor)
{
cursor.close();
cursor = null;
}
}
}
/**
* Projection for {@link #getNumberOfSessions(LocalyticsProvider)}.
*/
private static final String[] PROJECTION_GET_NUMBER_OF_SESSIONS = new String[]
{ SessionsDbColumns._ID };
/**
* Helper method to get the number of sessions currently in the database.
*
* @param provider Instance of {@link LocalyticsProvider}. Cannot be null.
* @return The number of sessions on disk.
*/
/* package */static long getNumberOfSessions(final LocalyticsProvider provider)
{
Cursor cursor = null;
try
{
cursor = provider.query(SessionsDbColumns.TABLE_NAME, PROJECTION_GET_NUMBER_OF_SESSIONS, null, null, null);
return cursor.getCount();
}
finally
{
if (null != cursor)
{
cursor.close();
cursor = null;
}
}
}
/**
* Close a session. While this method should only be called after {@link #open(boolean, Map)}, nothing bad will happen if
* it is called and {@link #open(boolean, Map)} wasn't called. Similarly, nothing bad will happen if close is called
* multiple times.
* <p>
* This method must only be called after {@link #init()} is called.
* <p>
* Note: This method is a private implementation detail. It is only made package accessible for unit testing purposes. The
* public interface is to send {@link #MESSAGE_CLOSE} to the Handler.
*
* @param attributes Set of attributes to attach to the close. May be null indicating no attributes. Cannot contain null
* or empty keys or values.
* @see #MESSAGE_OPEN
*/
/* package */void close(final Map<String, String> attributes)
{
if (null == getOpenSessionId(mProvider)) // do nothing if session is not open
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "Session was not open, so close is not possible."); //$NON-NLS-1$
}
return;
}
tagEvent(CLOSE_EVENT, attributes);
}
/**
* Projection for {@link #tagEvent(String, Map)}.
*/
private static final String[] PROJECTION_TAG_EVENT = new String[]
{ SessionsDbColumns.SESSION_START_WALL_TIME };
/**
* Selection for {@link #tagEvent(String, Map)}.
*/
private static final String SELECTION_TAG_EVENT = String.format("%s = ?", SessionsDbColumns._ID); //$NON-NLS-1$
/**
* Tag an event in a session. Although this method SHOULD NOT be called unless a session is open, actually doing so will
* have no effect.
* <p>
* This method must only be called after {@link #init()} is called.
* <p>
* Note: This method is a private implementation detail. It is only made package accessible for unit testing purposes. The
* public interface is to send {@link #MESSAGE_TAG_EVENT} to the Handler.
*
* @param event The name of the event which occurred. Cannot be null.
* @param attributes The collection of attributes for this particular event. May be null.
* @see #MESSAGE_TAG_EVENT
*/
/* package */void tagEvent(final String event, final Map<String, String> attributes)
{
final Long openSessionId = getOpenSessionId(mProvider);
if (null == openSessionId)
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "Event not written because a session is not open"); //$NON-NLS-1$
}
return;
}
/*
* Insert the event and get the event's database ID
*/
final long eventId;
{
final ContentValues values = new ContentValues();
values.put(EventsDbColumns.SESSION_KEY_REF, openSessionId);
values.put(EventsDbColumns.UUID, UUID.randomUUID().toString());
values.put(EventsDbColumns.EVENT_NAME, event);
values.put(EventsDbColumns.REAL_TIME, Long.valueOf(SystemClock.elapsedRealtime()));
values.put(EventsDbColumns.WALL_TIME, Long.valueOf(System.currentTimeMillis()));
/*
* Special case for open event: keep the start time in sync with the start time put into the sessions table.
*/
if (OPEN_EVENT.equals(event))
{
Cursor cursor = null;
try
{
cursor = mProvider.query(SessionsDbColumns.TABLE_NAME, PROJECTION_TAG_EVENT, SELECTION_TAG_EVENT, new String[]
{ openSessionId.toString() }, null);
if (cursor.moveToFirst())
{
values.put(EventsDbColumns.WALL_TIME, Long.valueOf(cursor.getLong(cursor.getColumnIndexOrThrow(SessionsDbColumns.SESSION_START_WALL_TIME))));
}
else
{
// this should never happen
throw new AssertionError("During tag of open event, session didn't exist"); //$NON-NLS-1$
}
}
finally
{
if (null != cursor)
{
cursor.close();
cursor = null;
}
}
}
eventId = mProvider.insert(EventsDbColumns.TABLE_NAME, values);
if (-1 == eventId)
{
throw new RuntimeException("Inserting event failed"); //$NON-NLS-1$
}
}
/*
* If attributes exist, insert them as well
*/
if (null != attributes)
{
// reusable object
final ContentValues values = new ContentValues();
final String applicationAttributePrefix = String.format(AttributesDbColumns.ATTRIBUTE_FORMAT, mContext.getPackageName(), ""); //$NON-NLS-1$
int applicationAttributeCount = 0;
for (final Entry<String, String> entry : attributes.entrySet())
{
/*
* Detect excess application events
*/
if (entry.getKey().startsWith(applicationAttributePrefix))
{
applicationAttributeCount++;
if (applicationAttributeCount > Constants.MAX_NUM_ATTRIBUTES)
{
continue;
}
}
values.put(AttributesDbColumns.EVENTS_KEY_REF, Long.valueOf(eventId));
values.put(AttributesDbColumns.ATTRIBUTE_KEY, entry.getKey());
values.put(AttributesDbColumns.ATTRIBUTE_VALUE, entry.getValue());
final long id = mProvider.insert(AttributesDbColumns.TABLE_NAME, values);
if (-1 == id)
{
throw new AssertionError("Inserting attribute failed"); //$NON-NLS-1$
}
values.clear();
}
}
/*
* Insert the event into the history, only for application events
*/
if (!OPEN_EVENT.equals(event) && !CLOSE_EVENT.equals(event) && !OPT_IN_EVENT.equals(event) && !OPT_OUT_EVENT.equals(event) && !FLOW_EVENT.equals(event))
{
final ContentValues values = new ContentValues();
values.put(EventHistoryDbColumns.NAME, event.substring(mContext.getPackageName().length() + 1, event.length()));
values.put(EventHistoryDbColumns.TYPE, Integer.valueOf(EventHistoryDbColumns.TYPE_EVENT));
values.put(EventHistoryDbColumns.SESSION_KEY_REF, openSessionId);
values.putNull(EventHistoryDbColumns.PROCESSED_IN_BLOB);
mProvider.insert(EventHistoryDbColumns.TABLE_NAME, values);
conditionallyAddFlowEvent();
}
}
/**
* Projection for {@link #tagScreen(String)}.
*/
private static final String[] PROJECTION_TAG_SCREEN = new String[]
{ EventHistoryDbColumns.NAME };
/**
* Selection for {@link #tagScreen(String)}.
*/
private static final String SELECTION_TAG_SCREEN = String.format("%s = ? AND %s = ?", EventHistoryDbColumns.TYPE, EventHistoryDbColumns.SESSION_KEY_REF); //$NON-NLS-1$
/**
* Sort order for {@link #tagScreen(String)}.
*/
private static final String SORT_ORDER_TAG_SCREEN = String.format("%s DESC", EventHistoryDbColumns._ID); //$NON-NLS-1$
/**
* Tag a screen in a session. While this method shouldn't be called unless {@link #open(boolean, Map)} is called first,
* this method will simply do nothing if {@link #open(boolean, Map)} hasn't been called.
* <p>
* This method performs duplicate suppression, preventing multiple screens with the same value in a row within a given
* session.
* <p>
* This method must only be called after {@link #init()} is called.
* <p>
* Note: This method is a private implementation detail. It is only made public for unit testing purposes. The public
* interface is to send {@link #MESSAGE_TAG_SCREEN} to the Handler.
*
* @param screen The name of the screen which occurred. Cannot be null or empty.
* @see #MESSAGE_TAG_SCREEN
*/
/* package */void tagScreen(final String screen)
{
final Long openSessionId = getOpenSessionId(mProvider);
if (null == openSessionId)
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "Tag not written because the session was not open"); //$NON-NLS-1$
}
return;
}
/*
* Do duplicate suppression
*/
Cursor cursor = null;
try
{
cursor = mProvider.query(EventHistoryDbColumns.TABLE_NAME, PROJECTION_TAG_SCREEN, SELECTION_TAG_SCREEN, new String[]
{
Integer.toString(EventHistoryDbColumns.TYPE_SCREEN),
openSessionId.toString() }, SORT_ORDER_TAG_SCREEN);
if (cursor.moveToFirst())
{
if (screen.equals(cursor.getString(cursor.getColumnIndexOrThrow(EventHistoryDbColumns.NAME))))
{
if (Constants.IS_LOGGABLE)
{
Log.v(Constants.LOG_TAG, String.format("Suppressed duplicate screen %s", screen)); //$NON-NLS-1$
}
return;
}
}
}
finally
{
if (null != cursor)
{
cursor.close();
cursor = null;
}
}
/*
* Write the screen to the database
*/
final ContentValues values = new ContentValues();
values.put(EventHistoryDbColumns.NAME, screen);
values.put(EventHistoryDbColumns.TYPE, Integer.valueOf(EventHistoryDbColumns.TYPE_SCREEN));
values.put(EventHistoryDbColumns.SESSION_KEY_REF, openSessionId);
values.putNull(EventHistoryDbColumns.PROCESSED_IN_BLOB);
mProvider.insert(EventHistoryDbColumns.TABLE_NAME, values);
conditionallyAddFlowEvent();
}
/**
* Projection for {@link #tagScreen(String)}.
*/
private static final String[] PROJECTION_SET_IDENTIFIER = new String[]
{ IdentifiersDbColumns.VALUE };
/**
* Selection for {@link #tagScreen(String)}.
*/
private static final String SELECTION_SET_IDENTIFIER = String.format("%s = ?", IdentifiersDbColumns.KEY); //$NON-NLS-1$
/* package */void setIdentifier(final String key, final String value)
{
Cursor cursor = null;
try
{
cursor = mProvider.query(IdentifiersDbColumns.TABLE_NAME, PROJECTION_SET_IDENTIFIER, SELECTION_SET_IDENTIFIER, new String[] { key }, null);
if (cursor.moveToFirst())
{
if (null == value)
{
mProvider.delete(IdentifiersDbColumns.TABLE_NAME, String.format("%s = ?", IdentifiersDbColumns.KEY), new String[] { cursor.getString(cursor.getColumnIndexOrThrow(IdentifiersDbColumns.KEY)) }); //$NON-NLS-1$
}
else
{
final ContentValues values = new ContentValues();
values.put(IdentifiersDbColumns.KEY, key);
values.put(IdentifiersDbColumns.VALUE, value);
mProvider.update(IdentifiersDbColumns.TABLE_NAME, values, SELECTION_SET_IDENTIFIER, new String[] { key });
}
}
else
{
if (value != null)
{
final ContentValues values = new ContentValues();
values.put(IdentifiersDbColumns.KEY, key);
values.put(IdentifiersDbColumns.VALUE, value);
mProvider.insert(IdentifiersDbColumns.TABLE_NAME, values);
}
}
}
finally
{
if (null != cursor)
{
cursor.close();
cursor = null;
}
}
}
/**
* Projection for {@link #conditionallyAddFlowEvent()}.
*/
private static final String[] PROJECTION_FLOW_EVENTS = new String[]
{ EventsDbColumns._ID };
/**
* Selection for {@link #conditionallyAddFlowEvent()}.
*/
private static final String SELECTION_FLOW_EVENTS = String.format("%s = ?", EventsDbColumns.EVENT_NAME); //$NON-NLS-1$
/**
* Selection arguments for {@link #SELECTION_FLOW_EVENTS} in {@link #conditionallyAddFlowEvent()}.
*/
private static final String[] SELECTION_ARGS_FLOW_EVENTS = new String[]
{ FLOW_EVENT };
/**
* Projection for {@link #conditionallyAddFlowEvent()}.
*/
private static final String[] PROJECTION_FLOW_BLOBS = new String[]
{ UploadBlobEventsDbColumns.EVENTS_KEY_REF };
/**
* Conditionally adds a flow event if no flow event exists in the current upload blob.
*/
private void conditionallyAddFlowEvent()
{
/*
* Creating a flow "event" is required to act as a placeholder so that the uploader will know that an upload needs to
* occur. A flow event should only be created if there isn't already a flow event that hasn't been associated with an
* upload blob.
*/
boolean foundUnassociatedFlowEvent = false;
Cursor eventsCursor = null;
Cursor blob_eventsCursor = null;
try
{
eventsCursor = mProvider.query(EventsDbColumns.TABLE_NAME, PROJECTION_FLOW_EVENTS, SELECTION_FLOW_EVENTS, SELECTION_ARGS_FLOW_EVENTS, EVENTS_SORT_ORDER);
blob_eventsCursor = mProvider.query(UploadBlobEventsDbColumns.TABLE_NAME, PROJECTION_FLOW_BLOBS, null, null, UPLOAD_BLOBS_EVENTS_SORT_ORDER);
final CursorJoiner joiner = new CursorJoiner(eventsCursor, PROJECTION_FLOW_EVENTS, blob_eventsCursor, PROJECTION_FLOW_BLOBS);
for (final CursorJoiner.Result joinerResult : joiner)
{
switch (joinerResult)
{
case LEFT:
{
foundUnassociatedFlowEvent = true;
break;
}
case BOTH:
break;
case RIGHT:
break;
}
}
}
finally
{
if (null != eventsCursor)
{
eventsCursor.close();
eventsCursor = null;
}
if (null != blob_eventsCursor)
{
blob_eventsCursor.close();
blob_eventsCursor = null;
}
}
if (!foundUnassociatedFlowEvent)
{
tagEvent(FLOW_EVENT, null);
}
}
/**
* Projection for {@link #preUploadBuildBlobs(LocalyticsProvider)}.
*/
private static final String[] PROJECTION_UPLOAD_EVENTS = new String[]
{
EventsDbColumns._ID,
EventsDbColumns.EVENT_NAME,
EventsDbColumns.WALL_TIME };
/**
* Projection for {@link #preUploadBuildBlobs(LocalyticsProvider)}.
*/
private static final String[] PROJECTION_UPLOAD_BLOBS = new String[]
{ UploadBlobEventsDbColumns.EVENTS_KEY_REF };
/**
* Projection for {@link #preUploadBuildBlobs(LocalyticsProvider)}.
*/
private static final String SELECTION_UPLOAD_NULL_BLOBS = String.format("%s IS NULL", EventHistoryDbColumns.PROCESSED_IN_BLOB); //$NON-NLS-1$
/**
* Columns to join in {@link #preUploadBuildBlobs(LocalyticsProvider)}.
*/
private static final String[] JOINER_ARG_UPLOAD_EVENTS_COLUMNS = new String[]
{ EventsDbColumns._ID };
/**
* Builds upload blobs for all events.
*
* @param provider Instance of {@link LocalyticsProvider}. Cannot be null.
* @effects Mutates the database by creating a new upload blob for all events that are unassociated at the time this
* method is called.
*/
/* package */static void preUploadBuildBlobs(final LocalyticsProvider provider)
{
/*
* Group all events that aren't part of an upload blob into a new blob. While this process is a linear algorithm that
* requires scanning two database tables, the performance won't be a problem for two reasons: 1. This process happens
* frequently so the number of events to group will always be low. 2. There is a maximum number of events, keeping the
* overall size low. Note that close events that are younger than SESSION_EXPIRATION will be skipped to allow session
* reconnects.
*/
// temporary set of event ids that aren't in a blob
final Set<Long> eventIds = new HashSet<Long>();
Cursor eventsCursor = null;
Cursor blob_eventsCursor = null;
try
{
eventsCursor = provider.query(EventsDbColumns.TABLE_NAME, PROJECTION_UPLOAD_EVENTS, null, null, EVENTS_SORT_ORDER);
blob_eventsCursor = provider.query(UploadBlobEventsDbColumns.TABLE_NAME, PROJECTION_UPLOAD_BLOBS, null, null, UPLOAD_BLOBS_EVENTS_SORT_ORDER);
final int idColumn = eventsCursor.getColumnIndexOrThrow(EventsDbColumns._ID);
final CursorJoiner joiner = new CursorJoiner(eventsCursor, JOINER_ARG_UPLOAD_EVENTS_COLUMNS, blob_eventsCursor, PROJECTION_UPLOAD_BLOBS);
for (final CursorJoiner.Result joinerResult : joiner)
{
switch (joinerResult)
{
case LEFT:
{
if (CLOSE_EVENT.equals(eventsCursor.getString(eventsCursor.getColumnIndexOrThrow(EventsDbColumns.EVENT_NAME))))
{
if (System.currentTimeMillis() - eventsCursor.getLong(eventsCursor.getColumnIndexOrThrow(EventsDbColumns.WALL_TIME)) < Constants.SESSION_EXPIRATION)
{
break;
}
}
eventIds.add(Long.valueOf(eventsCursor.getLong(idColumn)));
break;
}
case BOTH:
break;
case RIGHT:
break;
}
}
}
finally
{
if (null != eventsCursor)
{
eventsCursor.close();
eventsCursor = null;
}
if (null != blob_eventsCursor)
{
blob_eventsCursor.close();
blob_eventsCursor = null;
}
}
if (eventIds.size() > 0)
{
// reusable object
final ContentValues values = new ContentValues();
final Long blobId;
{
values.put(UploadBlobsDbColumns.UUID, UUID.randomUUID().toString());
blobId = Long.valueOf(provider.insert(UploadBlobsDbColumns.TABLE_NAME, values));
values.clear();
}
for (final Long x : eventIds)
{
values.put(UploadBlobEventsDbColumns.UPLOAD_BLOBS_KEY_REF, blobId);
values.put(UploadBlobEventsDbColumns.EVENTS_KEY_REF, x);
provider.insert(UploadBlobEventsDbColumns.TABLE_NAME, values);
values.clear();
}
values.put(EventHistoryDbColumns.PROCESSED_IN_BLOB, blobId);
provider.update(EventHistoryDbColumns.TABLE_NAME, values, SELECTION_UPLOAD_NULL_BLOBS, null);
values.clear();
}
}
/**
* Initiate upload of all session data currently stored on disk.
* <p>
* This method must only be called after {@link #init()} is called. The session does not need to be open for an upload to
* occur.
* <p>
* Note: This method is a private implementation detail. It is only made package accessible for unit testing purposes. The
* public interface is to send {@link #MESSAGE_UPLOAD} to the Handler.
*
* @param callback An optional callback to perform once the upload completes. May be null for no callback.
* @see #MESSAGE_UPLOAD
*/
/* package */void upload(final Runnable callback)
{
if (sIsUploadingMap.get(mApiKey).booleanValue())
{
if (Constants.IS_LOGGABLE)
{
Log.d(Constants.LOG_TAG, "Already uploading"); //$NON-NLS-1$
}
mUploadHandler.sendMessage(mUploadHandler.obtainMessage(UploadHandler.MESSAGE_RETRY_UPLOAD_REQUEST, callback));
return;
}
try
{
preUploadBuildBlobs(mProvider);
sIsUploadingMap.put(mApiKey, Boolean.TRUE);
mUploadHandler.sendMessage(mUploadHandler.obtainMessage(UploadHandler.MESSAGE_UPLOAD, callback));
}
catch (final Exception e)
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "Error occurred during upload", e); //$NON-NLS-1$
}
sIsUploadingMap.put(mApiKey, Boolean.FALSE);
// Notify the caller the upload is "complete"
if (null != callback)
{
/*
* Note that a new thread is created for the callback. This ensures that client code can't affect the
* performance of the SessionHandler's thread.
*/
new Thread(callback, UploadHandler.UPLOAD_CALLBACK_THREAD_NAME).start();
}
}
}
/**
* Projection for {@link #isOptedOut(LocalyticsProvider, String)}.
*/
private static final String[] PROJECTION_IS_OPTED_OUT = new String[]
{ ApiKeysDbColumns.OPT_OUT };
/**
* Selection for {@link #isOptedOut(LocalyticsProvider, String)}.
* <p>
* The selection argument is the {@link ApiKeysDbColumns#API_KEY}.
*/
private static final String SELECTION_IS_OPTED_OUT = String.format("%s = ?", ApiKeysDbColumns.API_KEY); //$NON-NLS-1$
/**
* @param provider Instance of {@link LocalyticsProvider}. Cannot be null.
* @param apiKey Api key to test whether it is opted out. Cannot be null.
* @return true if data collection has been opted out. Returns false if data collection is opted-in or if {@code apiKey}
* doesn't exist in the database.
* @throws IllegalArgumentException if {@code provider} is null.
* @throws IllegalArgumentException if {@code apiKey} is null.
*/
/* package */static boolean isOptedOut(final LocalyticsProvider provider, final String apiKey)
{
if (Constants.IS_PARAMETER_CHECKING_ENABLED)
{
if (null == provider)
{
throw new IllegalArgumentException("provider cannot be null"); //$NON-NLS-1$
}
if (null == apiKey)
{
throw new IllegalArgumentException("apiKey cannot be null"); //$NON-NLS-1$
}
}
Cursor cursor = null;
try
{
cursor = provider.query(ApiKeysDbColumns.TABLE_NAME, PROJECTION_IS_OPTED_OUT, SELECTION_IS_OPTED_OUT, new String[]
{ apiKey }, null);
if (cursor.moveToFirst())
{
return cursor.getInt(cursor.getColumnIndexOrThrow(ApiKeysDbColumns.OPT_OUT)) != 0;
}
}
finally
{
if (null != cursor)
{
cursor.close();
cursor = null;
}
}
return false;
}
}
/**
* Helper object to the {@link SessionHandler} which helps process upload requests.
*/
/* package */static final class UploadHandler extends Handler
{
/**
* Thread name that the upload callback runnable is executed on.
*/
private static final String UPLOAD_CALLBACK_THREAD_NAME = "upload_callback"; //$NON-NLS-1$
/**
* Localytics upload URL, as a format string that contains a format for the API key.
*/
private final static String ANALYTICS_URL = "http://analytics.localytics.com/api/v2/applications/%s/uploads"; //$NON-NLS-1$
/**
* Localytics attribution URL, as a format string that contains a format for the API key.
*/
private final static String ATTRIBUTION_URL = "http://a.localytics.com/fb_install/%s"; //$NON-NLS-1$
/**
* Handler message to upload all data collected so far
* <p>
* {@link Message#obj} is a {@code Runnable} to execute when upload is complete. The thread that this runnable will
* executed on is undefined.
*/
public static final int MESSAGE_UPLOAD = 1;
/**
* Handler message indicating that there is a queued upload request. When this message is processed, this handler simply
* forwards the request back to {@link LocalyticsSession#mSessionHandler} with {@link SessionHandler#MESSAGE_UPLOAD}.
* <p>
* {@link Message#obj} is a {@code Runnable} to execute when upload is complete. The thread that this runnable will
* executed on is undefined.
*/
public static final int MESSAGE_RETRY_UPLOAD_REQUEST = 2;
/**
* Reference to the Localytics database
*/
protected final LocalyticsProvider mProvider;
/**
* Application context
*/
private final Context mContext;
/**
* The Localytics API key
*/
private final String mApiKey;
/**
* The Localytics Install ID
*/
private final String mInstallId;
/**
* Facebook attribution cookie
*/
private String mFBAttribution;
/**
* Whether this is the first session or not
*/
private final boolean mFirstRun;
/**
* Parent session handler to notify when an upload completes.
*/
private final Handler mSessionHandler;
/**
* Constructs a new Handler that runs on {@code looper}.
* <p>
* Note: This constructor may perform disk access.
*
* @param context Application context. Cannot be null.
* @param sessionHandler Parent {@link SessionHandler} object to notify when uploads are completed. Cannot be null.
* @param apiKey Localytics API key. Cannot be null.
* @param installId Localytics install ID.
* @param looper to run the Handler on. Cannot be null.
*/
public UploadHandler(final Context context, final Handler sessionHandler, final String apiKey, final String installId, final String fbAttribution, final boolean firstRun, final Looper looper)
{
super(looper);
mContext = context;
mProvider = LocalyticsProvider.getInstance(context, apiKey);
mSessionHandler = sessionHandler;
mApiKey = apiKey;
mInstallId = installId;
mFBAttribution = fbAttribution;
mFirstRun = firstRun && (mFBAttribution != null); /* Only use first-run decorator when FB attribution is present */
}
@Override
public void handleMessage(final Message msg)
{
try
{
super.handleMessage(msg);
switch (msg.what)
{
case MESSAGE_UPLOAD:
{
if (Constants.IS_LOGGABLE)
{
Log.d(Constants.LOG_TAG, "UploadHandler received MESSAGE_UPLOAD"); //$NON-NLS-1$
}
/*
* Note that callback may be null
*/
final Runnable callback = (Runnable) msg.obj;
try
{
/*
* If Facebook attribution cookie is present, upload it to the attribution server.
*
* When an attribution cookie is present, specially mark uploads during the first
* session because of Localytics server considerations
*/
if (mFBAttribution != null)
{
long createdDate = getApiKeyCreationTime(mProvider, mApiKey);
if (uploadAttributions(String.format(ATTRIBUTION_URL, mApiKey), mFBAttribution, createdDate, mInstallId))
{
mFBAttribution = null;
mProvider.runBatchTransaction(new Runnable()
{
public void run()
{
clearAttributions(mProvider);
}
});
}
}
final List<JSONObject> toUpload = convertDatabaseToJson(mContext, mProvider, mApiKey);
if (!toUpload.isEmpty())
{
final StringBuilder builder = new StringBuilder();
for (final JSONObject json : toUpload)
{
builder.append(json.toString());
builder.append('\n');
}
if (uploadSessions(String.format(ANALYTICS_URL, mApiKey), builder.toString(), mFirstRun))
{
mProvider.runBatchTransaction(new Runnable()
{
public void run()
{
deleteBlobsAndSessions(mProvider);
markFirstSessionCompleted(mProvider);
}
});
}
}
}
finally
{
if (null != callback)
{
/*
* Execute the callback on a separate thread, to avoid exposing this thread to the client of the
* library
*/
new Thread(callback, UPLOAD_CALLBACK_THREAD_NAME).start();
}
mSessionHandler.sendEmptyMessage(SessionHandler.MESSAGE_UPLOAD_CALLBACK);
}
break;
}
case MESSAGE_RETRY_UPLOAD_REQUEST:
{
if (Constants.IS_LOGGABLE)
{
Log.d(Constants.LOG_TAG, "Received MESSAGE_RETRY_UPLOAD_REQUEST"); //$NON-NLS-1$
}
mSessionHandler.sendMessage(mSessionHandler.obtainMessage(SessionHandler.MESSAGE_UPLOAD, msg.obj));
break;
}
default:
{
/*
* This should never happen
*/
throw new RuntimeException("Fell through switch statement"); //$NON-NLS-1$
}
}
}
catch (final Exception e)
{
if (Constants.IS_LOGGABLE)
{
Log.e(Constants.LOG_TAG, "Localytics library threw an uncaught exception", e); //$NON-NLS-1$
}
if (!Constants.IS_EXCEPTION_SUPPRESSION_ENABLED)
{
throw new RuntimeException(e);
}
}
}
/**
* Uploads the post Body to the webservice
*
* @param url where {@code body} will be posted to. Cannot be null.
* @param body upload body as a string. This should be a plain old string. Cannot be null.
* @return True on success, false on failure.
*/
/* package */static boolean uploadSessions(final String url, final String body, boolean firstRun)
{
if (Constants.IS_PARAMETER_CHECKING_ENABLED)
{
if (null == url)
{
throw new IllegalArgumentException("url cannot be null"); //$NON-NLS-1$
}
if (null == body)
{
throw new IllegalArgumentException("body cannot be null"); //$NON-NLS-1$
}
}
if (Constants.IS_LOGGABLE)
{
Log.v(Constants.LOG_TAG, String.format("Upload body before compression is: %s", body)); //$NON-NLS-1$
}
/*
* As per Google's documentation, use HttpURLConnection for API 9 and greater and DefaultHttpClient for API 8 and
* lower. <http://android-developers.blogspot.com/2011/09/androids-http-clients.html>. HTTP library.
*
* Note: HTTP GZIP compression is explicitly disabled. Instead, the uploaded data is already GZIPPED before it is put
* into the HTTP post.
*/
if (DatapointHelper.getApiLevel() >= 9)
{
/*
* GZIP the data to upload
*/
byte[] data;
{
GZIPOutputStream gos = null;
try
{
final byte[] originalBytes = body.getBytes("UTF-8"); //$NON-NLS-1$
final ByteArrayOutputStream baos = new ByteArrayOutputStream(originalBytes.length);
gos = new GZIPOutputStream(baos);
gos.write(originalBytes);
gos.finish();
gos.flush();
data = baos.toByteArray();
}
catch (final UnsupportedEncodingException e)
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "UnsupportedEncodingException", e); //$NON-NLS-1$
}
return false;
}
catch (final IOException e)
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "IOException", e); //$NON-NLS-1$
}
return false;
}
finally
{
if (null != gos)
{
try
{
gos.close();
gos = null;
}
catch (final IOException e)
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "Caught exception", e); //$NON-NLS-1$
}
return false;
}
}
}
}
HttpURLConnection connection = null;
try
{
connection = (HttpURLConnection) new URL(url).openConnection();
connection.setDoOutput(true); // sets POST method implicitly
connection.setRequestProperty("Content-Type", "application/x-gzip"); //$NON-NLS-1$//$NON-NLS-2$
connection.setRequestProperty("x-upload-time",
Long.toString(Math.round((double) System.currentTimeMillis()
/ DateUtils.SECOND_IN_MILLIS))); //$NON-NLS-1$//$NON-NLS-2$
if (firstRun)
{
connection.setRequestProperty("ll-first-session", "true"); //$NON-NLS-1$
}
connection.setFixedLengthStreamingMode(data.length);
OutputStream stream = null;
try
{
stream = connection.getOutputStream();
stream.write(data);
}
finally
{
if (null != stream)
{
stream.flush();
stream.close();
stream = null;
}
}
final int responseCode = connection.getResponseCode();
if (Constants.IS_LOGGABLE)
{
Log.v(Constants.LOG_TAG, String.format("Upload complete with status %d", Integer.valueOf(responseCode))); //$NON-NLS-1$
}
/*
* 5xx status codes indicate a server error, so upload should be reattempted
*/
if (responseCode >= 500 && responseCode <= 599)
{
return false;
}
}
catch (final MalformedURLException e)
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "ClientProtocolException", e); //$NON-NLS-1$
}
return false;
}
catch (final IOException e)
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "ClientProtocolException", e); //$NON-NLS-1$
}
return false;
}
finally
{
if (null != connection)
{
connection.disconnect();
connection = null;
}
}
}
else
{
/*
* Note: DefaultHttpClient appears to sometimes cause an OutOfMemory error. Although we've seen exceptions from
* the wild, it isn't clear whether this is due to a bug in DefaultHttpClient or just a random error that has
* occurred once or twice due to buggy devices.
*/
final DefaultHttpClient client = new DefaultHttpClient();
final HttpPost method = new HttpPost(url);
method.addHeader("Content-Type", "application/x-gzip"); //$NON-NLS-1$ //$NON-NLS-2$
method.addHeader("x-upload-time",
Long.toString(Math.round((double) System.currentTimeMillis()
/ DateUtils.SECOND_IN_MILLIS))); //$NON-NLS-1$//$NON-NLS-2$
if (firstRun)
{
method.addHeader("ll-first-session", "true"); //$NON-NLS-1$
}
GZIPOutputStream gos = null;
try
{
final byte[] originalBytes = body.getBytes("UTF-8"); //$NON-NLS-1$
final ByteArrayOutputStream baos = new ByteArrayOutputStream(originalBytes.length);
gos = new GZIPOutputStream(baos);
gos.write(originalBytes);
gos.finish();
gos.flush();
final ByteArrayEntity postBody = new ByteArrayEntity(baos.toByteArray());
method.setEntity(postBody);
final HttpResponse response = client.execute(method);
final StatusLine status = response.getStatusLine();
final int statusCode = status.getStatusCode();
if (Constants.IS_LOGGABLE)
{
Log.v(Constants.LOG_TAG, String.format("Upload complete with status %d", Integer.valueOf(statusCode))); //$NON-NLS-1$
}
/*
* 5xx status codes indicate a server error, so upload should be reattempted
*/
if (statusCode >= 500 && statusCode <= 599)
{
return false;
}
}
catch (final UnsupportedEncodingException e)
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "UnsupportedEncodingException", e); //$NON-NLS-1$
}
return false;
}
catch (final ClientProtocolException e)
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "ClientProtocolException", e); //$NON-NLS-1$
}
return false;
}
catch (final IOException e)
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "IOException", e); //$NON-NLS-1$
}
return false;
}
finally
{
if (null != gos)
{
try
{
gos.close();
gos = null;
}
catch (final IOException e)
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "Caught exception", e); //$NON-NLS-1$
}
}
}
}
}
return true;
}
/**
* Uploads install attributions to the attributions server
*
* @param url where {@code body} will be posted to. Cannot be null.
* @param fbAttribution Facebook attribution cookie. Cannot be null.
* @param createdDate date cookie was retrieved
* @param installId Localytics installId
* @return True on success, false on failure.
*/
/* package */static boolean uploadAttributions(final String url, final String fbAttribution, final long createdDate, final String installId)
{
if (Constants.IS_PARAMETER_CHECKING_ENABLED)
{
if (null == url)
{
throw new IllegalArgumentException("url cannot be null"); //$NON-NLS-1$
}
if (null == fbAttribution)
{
throw new IllegalArgumentException("attribution cannot be null"); //$NON-NLS-1$
}
}
/*
* As per Google's documentation, use HttpURLConnection for API 9 and greater and DefaultHttpClient for API 8 and
* lower. <http://android-developers.blogspot.com/2011/09/androids-http-clients.html>. HTTP library.
*
* Note: HTTP GZIP compression is explicitly disabled. Instead, the uploaded data is already GZIPPED before it is put
* into the HTTP post.
*/
if (DatapointHelper.getApiLevel() >= 9)
{
HttpURLConnection connection = null;
try
{
connection = (HttpURLConnection) new URL(url).openConnection();
connection.setDoOutput(true); // sets POST method implicitly
connection.setRequestProperty("fb_attrib_first", fbAttribution); //$NON-NLS-1$//$NON-NLS-2$
connection.setRequestProperty("fb_attrib_first_date", Long.toString(createdDate)); //$NON-NLS-1$//$NON-NLS-2$
connection.setRequestProperty("install_id", installId); //$NON-NLS-1$//$NON-NLS-2$
final int responseCode = connection.getResponseCode();
if (Constants.IS_LOGGABLE)
{
Log.v(Constants.LOG_TAG, String.format("Upload complete with status %d", Integer.valueOf(responseCode))); //$NON-NLS-1$
}
/*
* 5xx status codes indicate a server error, so upload should be reattempted
*/
if (responseCode >= 500 && responseCode <= 599)
{
return false;
}
}
catch (final MalformedURLException e)
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "ClientProtocolException", e); //$NON-NLS-1$
}
return false;
}
catch (final IOException e)
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "ClientProtocolException", e); //$NON-NLS-1$
}
return false;
}
finally
{
if (null != connection)
{
connection.disconnect();
connection = null;
}
}
}
else
{
/*
* Note: DefaultHttpClient appears to sometimes cause an OutOfMemory error. Although we've seen exceptions from
* the wild, it isn't clear whether this is due to a bug in DefaultHttpClient or just a random error that has
* occurred once or twice due to buggy devices.
*/
final DefaultHttpClient client = new DefaultHttpClient();
final HttpPost method = new HttpPost(url);
method.addHeader("fb_attrib_first", fbAttribution); //$NON-NLS-1$//$NON-NLS-2$
method.addHeader("fb_attrib_first_date", Long.toString(createdDate)); //$NON-NLS-1$//$NON-NLS-2$
method.addHeader("install_id", installId); //$NON-NLS-1$//$NON-NLS-2$
try
{
final HttpResponse response = client.execute(method);
final StatusLine status = response.getStatusLine();
final int statusCode = status.getStatusCode();
if (Constants.IS_LOGGABLE)
{
Log.v(Constants.LOG_TAG, String.format("Upload complete with status %d", Integer.valueOf(statusCode))); //$NON-NLS-1$
}
/*
* 5xx status codes indicate a server error, so upload should be reattempted
*/
if (statusCode >= 500 && statusCode <= 599)
{
return false;
}
}
catch (final UnsupportedEncodingException e)
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "UnsupportedEncodingException", e); //$NON-NLS-1$
}
return false;
}
catch (final ClientProtocolException e)
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "ClientProtocolException", e); //$NON-NLS-1$
}
return false;
}
catch (final IOException e)
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "IOException", e); //$NON-NLS-1$
}
return false;
}
}
return true;
}
/**
* Helper that converts blobs in the database into a JSON representation for upload.
*
* @return A list of JSON objects to upload to the server
*/
/* package */static List<JSONObject> convertDatabaseToJson(final Context context, final LocalyticsProvider provider, final String apiKey)
{
final List<JSONObject> result = new LinkedList<JSONObject>();
Cursor cursor = null;
try
{
cursor = provider.query(UploadBlobsDbColumns.TABLE_NAME, null, null, null, null);
final long creationTime = getApiKeyCreationTime(provider, apiKey);
final int idColumn = cursor.getColumnIndexOrThrow(UploadBlobsDbColumns._ID);
final int uuidColumn = cursor.getColumnIndexOrThrow(UploadBlobsDbColumns.UUID);
while (cursor.moveToNext())
{
try
{
final JSONObject blobHeader = new JSONObject();
blobHeader.put(JsonObjects.BlobHeader.KEY_DATA_TYPE, BlobHeader.VALUE_DATA_TYPE);
blobHeader.put(JsonObjects.BlobHeader.KEY_PERSISTENT_STORAGE_CREATION_TIME_SECONDS, creationTime);
blobHeader.put(JsonObjects.BlobHeader.KEY_SEQUENCE_NUMBER, cursor.getLong(idColumn));
blobHeader.put(JsonObjects.BlobHeader.KEY_UNIQUE_ID, cursor.getString(uuidColumn));
blobHeader.put(JsonObjects.BlobHeader.KEY_ATTRIBUTES, getAttributesFromSession(provider, apiKey, getSessionIdForBlobId(provider, cursor.getLong(idColumn))));
final JSONObject identifiers = getIdentifiers(provider);
if (null != identifiers)
{
blobHeader.put(JsonObjects.BlobHeader.KEY_IDENTIFIERS, identifiers);
}
result.add(blobHeader);
Log.w(Constants.LOG_TAG, result.toString());
Cursor blobEvents = null;
try
{
blobEvents = provider.query(UploadBlobEventsDbColumns.TABLE_NAME, new String[]
{ UploadBlobEventsDbColumns.EVENTS_KEY_REF }, String.format("%s = ?", UploadBlobEventsDbColumns.UPLOAD_BLOBS_KEY_REF), new String[] //$NON-NLS-1$
{ Long.toString(cursor.getLong(idColumn)) }, UploadBlobEventsDbColumns.EVENTS_KEY_REF);
final int eventIdColumn = blobEvents.getColumnIndexOrThrow(UploadBlobEventsDbColumns.EVENTS_KEY_REF);
while (blobEvents.moveToNext())
{
result.add(convertEventToJson(provider, context, blobEvents.getLong(eventIdColumn), cursor.getLong(idColumn), apiKey));
}
}
finally
{
if (null != blobEvents)
{
blobEvents.close();
}
}
}
catch (final JSONException e)
{
if (Constants.IS_LOGGABLE)
{
Log.w(Constants.LOG_TAG, "Caught exception", e); //$NON-NLS-1$
}
}
}
}
finally
{
if (cursor != null)
{
cursor.close();
cursor = null;
}
}
if (Constants.IS_LOGGABLE)
{
Log.v(Constants.LOG_TAG, String.format("JSON result is %s", result.toString())); //$NON-NLS-1$
}
return result;
}
/**
* Deletes all blobs and sessions/events/attributes associated with those blobs.
* <p>
* This should be called after a successful upload completes.
*
* @param provider Localytics database provider. Cannot be null.
*/
/* package */static void deleteBlobsAndSessions(final LocalyticsProvider provider)
{
/*
* Deletion needs to occur in a specific order due to database constraints. Specifically, blobevents need to be
* deleted first. Then blobs themselves can be deleted. Then attributes need to be deleted first. Then events. Then
* sessions.
*/
final LinkedList<Long> sessionsToDelete = new LinkedList<Long>();
final HashSet<Long> blobsToDelete = new HashSet<Long>();
Cursor blobEvents = null;
try
{
blobEvents = provider.query(UploadBlobEventsDbColumns.TABLE_NAME, new String[]
{
UploadBlobEventsDbColumns._ID,
UploadBlobEventsDbColumns.EVENTS_KEY_REF,
UploadBlobEventsDbColumns.UPLOAD_BLOBS_KEY_REF }, null, null, null);
final int uploadBlobIdColumn = blobEvents.getColumnIndexOrThrow(UploadBlobEventsDbColumns.UPLOAD_BLOBS_KEY_REF);
final int blobEventIdColumn = blobEvents.getColumnIndexOrThrow(UploadBlobEventsDbColumns._ID);
final int eventIdColumn = blobEvents.getColumnIndexOrThrow(UploadBlobEventsDbColumns.EVENTS_KEY_REF);
while (blobEvents.moveToNext())
{
final long blobId = blobEvents.getLong(uploadBlobIdColumn);
final long blobEventId = blobEvents.getLong(blobEventIdColumn);
final long eventId = blobEvents.getLong(eventIdColumn);
// delete the blobevent
provider.delete(UploadBlobEventsDbColumns.TABLE_NAME, String.format("%s = ?", UploadBlobEventsDbColumns._ID), new String[] { Long.toString(blobEventId) }); //$NON-NLS-1$
/*
* Add the blob to the list of blobs to be deleted
*/
blobsToDelete.add(Long.valueOf(blobId));
// delete all attributes for the event
provider.delete(AttributesDbColumns.TABLE_NAME, String.format("%s = ?", AttributesDbColumns.EVENTS_KEY_REF), new String[] { Long.toString(eventId) }); //$NON-NLS-1$
/*
* Check to see if the event is a close event, indicating that the session is complete and can also be deleted
*/
Cursor eventCursor = null;
try
{
eventCursor = provider.query(EventsDbColumns.TABLE_NAME, new String[]
{ EventsDbColumns.SESSION_KEY_REF }, String.format("%s = ? AND %s = ?", EventsDbColumns._ID, EventsDbColumns.EVENT_NAME), new String[] //$NON-NLS-1$
{
Long.toString(eventId),
CLOSE_EVENT }, null);
if (eventCursor.moveToFirst())
{
final long sessionId = eventCursor.getLong(eventCursor.getColumnIndexOrThrow(EventsDbColumns.SESSION_KEY_REF));
provider.delete(EventHistoryDbColumns.TABLE_NAME, String.format("%s = ?", EventHistoryDbColumns.SESSION_KEY_REF), new String[] //$NON-NLS-1$
{ Long.toString(sessionId) });
sessionsToDelete.add(Long.valueOf(eventCursor.getLong(eventCursor.getColumnIndexOrThrow(EventsDbColumns.SESSION_KEY_REF))));
}
}
finally
{
if (null != eventCursor)
{
eventCursor.close();
eventCursor = null;
}
}
// delete the event
provider.delete(EventsDbColumns.TABLE_NAME, String.format("%s = ?", EventsDbColumns._ID), new String[] { Long.toString(eventId) }); //$NON-NLS-1$
}
}
finally
{
if (null != blobEvents)
{
blobEvents.close();
blobEvents = null;
}
}
// delete blobs
for (final long x : blobsToDelete)
{
provider.delete(UploadBlobsDbColumns.TABLE_NAME, String.format("%s = ?", UploadBlobsDbColumns._ID), new String[] { Long.toString(x) }); //$NON-NLS-1$
}
// delete sessions
for (final long x : sessionsToDelete)
{
provider.delete(SessionsDbColumns.TABLE_NAME, String.format("%s = ?", SessionsDbColumns._ID), new String[] { Long.toString(x) }); //$NON-NLS-1$
}
}
/**
* Mark that the first session has been successfully uploaded
*
* @param provider Localytics database provider. Cannot be null.
*/
/* package */static void markFirstSessionCompleted(final LocalyticsProvider provider)
{
final ContentValues values = new ContentValues();
values.put(InfoDbColumns.FIRST_RUN, 0);
provider.update(InfoDbColumns.TABLE_NAME, values, null, null);
}
/**
* Clear pending attributions after successful upload
*
* @param provider Localytics database provider. Cannot be null.
*/
/* package */static void clearAttributions(final LocalyticsProvider provider)
{
final ContentValues values = new ContentValues();
values.putNull(InfoDbColumns.FB_ATTRIBUTION);
provider.update(InfoDbColumns.TABLE_NAME, values, null, null);
}
/**
* Gets the creation time for an API key.
*
* @param provider Localytics database provider. Cannot be null.
* @param key Localytics API key. Cannot be null.
* @return The time in seconds since the Unix Epoch when the API key entry was created in the database.
* @throws RuntimeException if the API key entry doesn't exist in the database.
*/
/* package */static long getApiKeyCreationTime(final LocalyticsProvider provider, final String key)
{
Cursor cursor = null;
try
{
cursor = provider.query(ApiKeysDbColumns.TABLE_NAME, null, String.format("%s = ?", ApiKeysDbColumns.API_KEY), new String[] { key }, null); //$NON-NLS-1$
if (cursor.moveToFirst())
{
return Math.round((float) cursor.getLong(cursor.getColumnIndexOrThrow(ApiKeysDbColumns.CREATED_TIME)) / DateUtils.SECOND_IN_MILLIS);
}
/*
* This should never happen
*/
throw new RuntimeException("API key entry couldn't be found"); //$NON-NLS-1$
}
finally
{
if (null != cursor)
{
cursor.close();
cursor = null;
}
}
}
/**
* Helper method to generate the attributes object for a session
*
* @param provider Instance of the Localytics database provider. Cannot be null.
* @param apiKey Localytics API key. Cannot be null.
* @param sessionId The {@link SessionsDbColumns#_ID} of the session.
* @return a JSONObject representation of the session attributes
* @throws JSONException if a problem occurred converting the element to JSON.
*/
/* package */static JSONObject getAttributesFromSession(final LocalyticsProvider provider, final String apiKey, final long sessionId) throws JSONException
{
Cursor cursor = null;
try
{
cursor = provider.query(SessionsDbColumns.TABLE_NAME, null, String.format("%s = ?", SessionsDbColumns._ID), new String[] { Long.toString(sessionId) }, null); //$NON-NLS-1$
if (cursor.moveToFirst())
{
final JSONObject result = new JSONObject();
result.put(JsonObjects.BlobHeader.Attributes.KEY_CLIENT_APP_VERSION, cursor.getString(cursor.getColumnIndexOrThrow(SessionsDbColumns.APP_VERSION)));
result.put(JsonObjects.BlobHeader.Attributes.KEY_DATA_CONNECTION, cursor.getString(cursor.getColumnIndexOrThrow(SessionsDbColumns.NETWORK_TYPE)));
result.put(JsonObjects.BlobHeader.Attributes.KEY_DEVICE_ANDROID_ID_HASH, cursor.getString(cursor.getColumnIndexOrThrow(SessionsDbColumns.DEVICE_ANDROID_ID_HASH)));
result.put(JsonObjects.BlobHeader.Attributes.KEY_DEVICE_COUNTRY, cursor.getString(cursor.getColumnIndexOrThrow(SessionsDbColumns.DEVICE_COUNTRY)));
result.put(JsonObjects.BlobHeader.Attributes.KEY_DEVICE_MANUFACTURER, cursor.getString(cursor.getColumnIndexOrThrow(SessionsDbColumns.DEVICE_MANUFACTURER)));
result.put(JsonObjects.BlobHeader.Attributes.KEY_DEVICE_MODEL, cursor.getString(cursor.getColumnIndexOrThrow(SessionsDbColumns.DEVICE_MODEL)));
result.put(JsonObjects.BlobHeader.Attributes.KEY_DEVICE_OS_VERSION, cursor.getString(cursor.getColumnIndexOrThrow(SessionsDbColumns.ANDROID_VERSION)));
result.put(JsonObjects.BlobHeader.Attributes.KEY_DEVICE_PLATFORM, JsonObjects.BlobHeader.Attributes.VALUE_PLATFORM);
result.put(JsonObjects.BlobHeader.Attributes.KEY_DEVICE_SERIAL_HASH, cursor.isNull(cursor.getColumnIndexOrThrow(SessionsDbColumns.DEVICE_SERIAL_NUMBER_HASH)) ? JSONObject.NULL
: cursor.getString(cursor.getColumnIndexOrThrow(SessionsDbColumns.DEVICE_SERIAL_NUMBER_HASH)));
result.put(JsonObjects.BlobHeader.Attributes.KEY_DEVICE_SDK_LEVEL, cursor.getString(cursor.getColumnIndexOrThrow(SessionsDbColumns.ANDROID_SDK)));
if (Constants.IS_DEVICE_IDENTIFIER_UPLOADED)
{
result.put(JsonObjects.BlobHeader.Attributes.KEY_DEVICE_TELEPHONY_ID, cursor.isNull(cursor.getColumnIndexOrThrow(SessionsDbColumns.DEVICE_TELEPHONY_ID)) ? JSONObject.NULL
: cursor.getString(cursor.getColumnIndexOrThrow(SessionsDbColumns.DEVICE_TELEPHONY_ID)));
}
else
{
result.put(JsonObjects.BlobHeader.Attributes.KEY_DEVICE_TELEPHONY_ID_HASH, cursor.isNull(cursor.getColumnIndexOrThrow(SessionsDbColumns.DEVICE_TELEPHONY_ID_HASH)) ? JSONObject.NULL
: cursor.getString(cursor.getColumnIndexOrThrow(SessionsDbColumns.DEVICE_TELEPHONY_ID_HASH)));
}
result.put(JsonObjects.BlobHeader.Attributes.KEY_DEVICE_WIFI_MAC_HASH, cursor.isNull(cursor.getColumnIndexOrThrow(SessionsDbColumns.DEVICE_WIFI_MAC_HASH)) ? JSONObject.NULL
: cursor.getString(cursor.getColumnIndexOrThrow(SessionsDbColumns.DEVICE_WIFI_MAC_HASH)));
result.put(JsonObjects.BlobHeader.Attributes.KEY_LOCALYTICS_API_KEY, apiKey);
result.put(JsonObjects.BlobHeader.Attributes.KEY_LOCALYTICS_CLIENT_LIBRARY_VERSION, cursor.getString(cursor.getColumnIndexOrThrow(SessionsDbColumns.LOCALYTICS_LIBRARY_VERSION)));
result.put(JsonObjects.BlobHeader.Attributes.KEY_LOCALYTICS_DATA_TYPE, JsonObjects.BlobHeader.Attributes.VALUE_DATA_TYPE);
// This would only be null after an upgrade from an earlier version of the Localytics library
final String installationID = cursor.getString(cursor.getColumnIndexOrThrow(SessionsDbColumns.LOCALYTICS_INSTALLATION_ID));
if (null != installationID)
{
result.put(JsonObjects.BlobHeader.Attributes.KEY_LOCALYTICS_INSTALLATION_ID, installationID);
}
result.put(JsonObjects.BlobHeader.Attributes.KEY_LOCALE_COUNTRY, cursor.getString(cursor.getColumnIndexOrThrow(SessionsDbColumns.LOCALE_COUNTRY)));
result.put(JsonObjects.BlobHeader.Attributes.KEY_LOCALE_LANGUAGE, cursor.getString(cursor.getColumnIndexOrThrow(SessionsDbColumns.LOCALE_LANGUAGE)));
result.put(JsonObjects.BlobHeader.Attributes.KEY_NETWORK_CARRIER, cursor.getString(cursor.getColumnIndexOrThrow(SessionsDbColumns.NETWORK_CARRIER)));
result.put(JsonObjects.BlobHeader.Attributes.KEY_NETWORK_COUNTRY, cursor.getString(cursor.getColumnIndexOrThrow(SessionsDbColumns.NETWORK_COUNTRY)));
return result;
}
throw new RuntimeException("No session exists"); //$NON-NLS-1$
}
finally
{
if (null != cursor)
{
cursor.close();
cursor = null;
}
}
}
/**
* Helper method to generate the attributes object for a session
*
* @param provider Instance of the Localytics database provider. Cannot be null.
* @param apiKey Localytics API key. Cannot be null.
* @param sessionId The {@link SessionsDbColumns#_ID} of the session.
* @return a JSONObject representation of the session attributes
* @throws JSONException if a problem occurred converting the element to JSON.
*/
/* package */static JSONObject getIdentifiers(final LocalyticsProvider provider) throws JSONException
{
Cursor cursor = null;
try
{
cursor = provider.query(IdentifiersDbColumns.TABLE_NAME, null, null, null, null); //$NON-NLS-1$
JSONObject result = null;
while (cursor.moveToNext())
{
if (null == result)
{
result = new JSONObject();
}
result.put(cursor.getString(cursor.getColumnIndexOrThrow(IdentifiersDbColumns.KEY)), cursor.getString(cursor.getColumnIndexOrThrow(IdentifiersDbColumns.VALUE)));
Log.w(Constants.LOG_TAG, "identifier found"); //$NON-NLS-1$
}
return result;
}
finally
{
if (null != cursor)
{
cursor.close();
cursor = null;
}
}
}
/**
* Converts an event into a JSON object.
* <p>
* There are three types of events: open, close, and application. Open and close events are Localytics events, while
* application events are generated by the app. The return value of this method will vary based on the type of event that
* is being converted.
*
* @param provider Localytics database instance. Cannot be null.
* @param context Application context. Cannot be null.
* @param eventId {@link EventsDbColumns#_ID} of the event to convert.
* @param blobId {@link UploadBlobEventsDbColumns#_ID} of the upload blob that contains this event.
* @param apiKey the Localytics API key. Cannot be null.
* @return JSON representation of the event.
* @throws JSONException if a problem occurred converting the element to JSON.
*/
/* package */static JSONObject convertEventToJson(final LocalyticsProvider provider, final Context context, final long eventId, final long blobId, final String apiKey)
throws JSONException
{
final JSONObject result = new JSONObject();
Cursor cursor = null;
try
{
cursor = provider.query(EventsDbColumns.TABLE_NAME, null, String.format("%s = ?", EventsDbColumns._ID), new String[] //$NON-NLS-1$
{ Long.toString(eventId) }, EventsDbColumns._ID);
if (cursor.moveToFirst())
{
final String eventName = cursor.getString(cursor.getColumnIndexOrThrow(EventsDbColumns.EVENT_NAME));
final long sessionId = getSessionIdForEventId(provider, eventId);
final String sessionUuid = getSessionUuid(provider, sessionId);
final long sessionStartTime = getSessionStartTime(provider, sessionId);
if (OPEN_EVENT.equals(eventName))
{
result.put(JsonObjects.SessionOpen.KEY_DATA_TYPE, JsonObjects.SessionOpen.VALUE_DATA_TYPE);
result.put(JsonObjects.SessionOpen.KEY_WALL_TIME_SECONDS, Math.round((double) cursor.getLong(cursor.getColumnIndex(EventsDbColumns.WALL_TIME))
/ DateUtils.SECOND_IN_MILLIS));
result.put(JsonObjects.SessionOpen.KEY_EVENT_UUID, sessionUuid);
/*
* Both the database and the web service use 1-based indexing.
*/
result.put(JsonObjects.SessionOpen.KEY_COUNT, sessionId);
/*
* Get the custom dimensions from the attributes table
*/
Cursor attributesCursor = null;
try
{
attributesCursor = provider.query(AttributesDbColumns.TABLE_NAME, null, String.format("%s = ?", AttributesDbColumns.EVENTS_KEY_REF), new String[] { Long.toString(eventId) }, null); //$NON-NLS-1$
final int keyColumn = attributesCursor.getColumnIndexOrThrow(AttributesDbColumns.ATTRIBUTE_KEY);
final int valueColumn = attributesCursor.getColumnIndexOrThrow(AttributesDbColumns.ATTRIBUTE_VALUE);
while (attributesCursor.moveToNext())
{
final String key = attributesCursor.getString(keyColumn);
final String value = attributesCursor.getString(valueColumn);
if (AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_1.equals(key))
{
result.put(JsonObjects.SessionOpen.KEY_CUSTOM_DIMENSION_1, value);
}
else if (AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_2.equals(key))
{
result.put(JsonObjects.SessionOpen.KEY_CUSTOM_DIMENSION_2, value);
}
else if (AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_3.equals(key))
{
result.put(JsonObjects.SessionOpen.KEY_CUSTOM_DIMENSION_3, value);
}
else if (AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_4.equals(key))
{
result.put(JsonObjects.SessionOpen.KEY_CUSTOM_DIMENSION_4, value);
}
}
}
finally
{
if (null != attributesCursor)
{
attributesCursor.close();
attributesCursor = null;
}
}
}
else if (CLOSE_EVENT.equals(eventName))
{
result.put(JsonObjects.SessionClose.KEY_DATA_TYPE, JsonObjects.SessionClose.VALUE_DATA_TYPE);
result.put(JsonObjects.SessionClose.KEY_EVENT_UUID, cursor.getString(cursor.getColumnIndexOrThrow(EventsDbColumns.UUID)));
result.put(JsonObjects.SessionClose.KEY_SESSION_UUID, sessionUuid);
result.put(JsonObjects.SessionClose.KEY_SESSION_START_TIME, Math.round((double) sessionStartTime / DateUtils.SECOND_IN_MILLIS));
result.put(JsonObjects.SessionClose.KEY_WALL_TIME_SECONDS, Math.round((double) cursor.getLong(cursor.getColumnIndex(EventsDbColumns.WALL_TIME))
/ DateUtils.SECOND_IN_MILLIS));
/*
* length is a special case, as it depends on the start time embedded in the session table
*/
Cursor sessionCursor = null;
try
{
sessionCursor = provider.query(SessionsDbColumns.TABLE_NAME, new String[]
{ SessionsDbColumns.SESSION_START_WALL_TIME }, String.format("%s = ?", SessionsDbColumns._ID), new String[] { Long.toString(cursor.getLong(cursor.getColumnIndexOrThrow(EventsDbColumns.SESSION_KEY_REF))) }, null); //$NON-NLS-1$
if (sessionCursor.moveToFirst())
{
result.put(JsonObjects.SessionClose.KEY_SESSION_LENGTH_SECONDS, Math.round((double) cursor.getLong(cursor.getColumnIndex(EventsDbColumns.WALL_TIME))
/ DateUtils.SECOND_IN_MILLIS)
- Math.round((double) sessionCursor.getLong(sessionCursor.getColumnIndexOrThrow(SessionsDbColumns.SESSION_START_WALL_TIME))
/ DateUtils.SECOND_IN_MILLIS));
}
else
{
// this should never happen
throw new RuntimeException("Session didn't exist"); //$NON-NLS-1$
}
}
finally
{
if (null != sessionCursor)
{
sessionCursor.close();
sessionCursor = null;
}
}
/*
* The close also contains a special case element for the screens history
*/
Cursor eventHistoryCursor = null;
try
{
eventHistoryCursor = provider.query(EventHistoryDbColumns.TABLE_NAME, new String[]
{ EventHistoryDbColumns.NAME }, String.format("%s = ? AND %s = ?", EventHistoryDbColumns.SESSION_KEY_REF, EventHistoryDbColumns.TYPE), new String[] { Long.toString(sessionId), Integer.toString(EventHistoryDbColumns.TYPE_SCREEN) }, EventHistoryDbColumns._ID); //$NON-NLS-1$
final JSONArray screens = new JSONArray();
while (eventHistoryCursor.moveToNext())
{
screens.put(eventHistoryCursor.getString(eventHistoryCursor.getColumnIndexOrThrow(EventHistoryDbColumns.NAME)));
}
if (screens.length() > 0)
{
result.put(JsonObjects.SessionClose.KEY_FLOW_ARRAY, screens);
}
}
finally
{
if (null != eventHistoryCursor)
{
eventHistoryCursor.close();
eventHistoryCursor = null;
}
}
/*
* Get the custom dimensions from the attributes table
*/
Cursor attributesCursor = null;
try
{
attributesCursor = provider.query(AttributesDbColumns.TABLE_NAME, null, String.format("%s = ?", AttributesDbColumns.EVENTS_KEY_REF), new String[] { Long.toString(eventId) }, null); //$NON-NLS-1$
final int keyColumn = attributesCursor.getColumnIndexOrThrow(AttributesDbColumns.ATTRIBUTE_KEY);
final int valueColumn = attributesCursor.getColumnIndexOrThrow(AttributesDbColumns.ATTRIBUTE_VALUE);
while (attributesCursor.moveToNext())
{
final String key = attributesCursor.getString(keyColumn);
final String value = attributesCursor.getString(valueColumn);
if (AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_1.equals(key))
{
result.put(JsonObjects.SessionOpen.KEY_CUSTOM_DIMENSION_1, value);
}
else if (AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_2.equals(key))
{
result.put(JsonObjects.SessionOpen.KEY_CUSTOM_DIMENSION_2, value);
}
else if (AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_3.equals(key))
{
result.put(JsonObjects.SessionOpen.KEY_CUSTOM_DIMENSION_3, value);
}
else if (AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_4.equals(key))
{
result.put(JsonObjects.SessionOpen.KEY_CUSTOM_DIMENSION_4, value);
}
}
}
finally
{
if (null != attributesCursor)
{
attributesCursor.close();
attributesCursor = null;
}
}
}
else if (OPT_IN_EVENT.equals(eventName) || OPT_OUT_EVENT.equals(eventName))
{
result.put(JsonObjects.OptEvent.KEY_DATA_TYPE, JsonObjects.OptEvent.VALUE_DATA_TYPE);
result.put(JsonObjects.OptEvent.KEY_API_KEY, apiKey);
result.put(JsonObjects.OptEvent.KEY_OPT, OPT_OUT_EVENT.equals(eventName) ? Boolean.TRUE.toString() : Boolean.FALSE.toString());
result.put(JsonObjects.OptEvent.KEY_WALL_TIME_SECONDS, Math.round((double) cursor.getLong(cursor.getColumnIndex(EventsDbColumns.WALL_TIME))
/ DateUtils.SECOND_IN_MILLIS));
}
else if (FLOW_EVENT.equals(eventName))
{
result.put(JsonObjects.EventFlow.KEY_DATA_TYPE, JsonObjects.EventFlow.VALUE_DATA_TYPE);
result.put(JsonObjects.EventFlow.KEY_EVENT_UUID, cursor.getString(cursor.getColumnIndexOrThrow(EventsDbColumns.UUID)));
result.put(JsonObjects.EventFlow.KEY_SESSION_START_TIME, Math.round((double) sessionStartTime / DateUtils.SECOND_IN_MILLIS));
/*
* Need to generate two objects: the old flow events and the new flow events
*/
/*
* Default sort order is ascending by _ID, so these will be sorted chronologically.
*/
Cursor eventHistoryCursor = null;
try
{
eventHistoryCursor = provider.query(EventHistoryDbColumns.TABLE_NAME, new String[]
{
EventHistoryDbColumns.TYPE,
EventHistoryDbColumns.PROCESSED_IN_BLOB,
EventHistoryDbColumns.NAME }, String.format("%s = ? AND %s <= ?", EventHistoryDbColumns.SESSION_KEY_REF, EventHistoryDbColumns.PROCESSED_IN_BLOB), new String[] { Long.toString(sessionId), Long.toString(blobId) }, EventHistoryDbColumns._ID); //$NON-NLS-1$
final JSONArray newScreens = new JSONArray();
final JSONArray oldScreens = new JSONArray();
while (eventHistoryCursor.moveToNext())
{
final String name = eventHistoryCursor.getString(eventHistoryCursor.getColumnIndexOrThrow(EventHistoryDbColumns.NAME));
final String type;
if (EventHistoryDbColumns.TYPE_EVENT == eventHistoryCursor.getInt(eventHistoryCursor.getColumnIndexOrThrow(EventHistoryDbColumns.TYPE)))
{
type = JsonObjects.EventFlow.Element.TYPE_EVENT;
}
else
{
type = JsonObjects.EventFlow.Element.TYPE_SCREEN;
}
if (blobId == eventHistoryCursor.getLong(eventHistoryCursor.getColumnIndexOrThrow(EventHistoryDbColumns.PROCESSED_IN_BLOB)))
{
newScreens.put(new JSONObject().put(type, name));
}
else
{
oldScreens.put(new JSONObject().put(type, name));
}
}
result.put(JsonObjects.EventFlow.KEY_FLOW_NEW, newScreens);
result.put(JsonObjects.EventFlow.KEY_FLOW_OLD, oldScreens);
}
finally
{
if (null != eventHistoryCursor)
{
eventHistoryCursor.close();
eventHistoryCursor = null;
}
}
}
else
{
/*
* This is a normal application event
*/
result.put(JsonObjects.SessionEvent.KEY_DATA_TYPE, JsonObjects.SessionEvent.VALUE_DATA_TYPE);
result.put(JsonObjects.SessionEvent.KEY_WALL_TIME_SECONDS, Math.round((double) cursor.getLong(cursor.getColumnIndex(EventsDbColumns.WALL_TIME))
/ DateUtils.SECOND_IN_MILLIS));
result.put(JsonObjects.SessionEvent.KEY_EVENT_UUID, cursor.getString(cursor.getColumnIndexOrThrow(EventsDbColumns.UUID)));
result.put(JsonObjects.SessionEvent.KEY_SESSION_UUID, sessionUuid);
result.put(JsonObjects.SessionEvent.KEY_NAME, eventName.substring(context.getPackageName().length() + 1, eventName.length()));
/*
* Get the custom dimensions from the attributes table
*/
Cursor attributesCursor = null;
try
{
attributesCursor = provider.query(AttributesDbColumns.TABLE_NAME, null, String.format("%s = ?", AttributesDbColumns.EVENTS_KEY_REF), new String[] { Long.toString(eventId) }, null); //$NON-NLS-1$
final int keyColumn = attributesCursor.getColumnIndexOrThrow(AttributesDbColumns.ATTRIBUTE_KEY);
final int valueColumn = attributesCursor.getColumnIndexOrThrow(AttributesDbColumns.ATTRIBUTE_VALUE);
while (attributesCursor.moveToNext())
{
final String key = attributesCursor.getString(keyColumn);
final String value = attributesCursor.getString(valueColumn);
if (AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_1.equals(key))
{
result.put(JsonObjects.SessionOpen.KEY_CUSTOM_DIMENSION_1, value);
}
else if (AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_2.equals(key))
{
result.put(JsonObjects.SessionOpen.KEY_CUSTOM_DIMENSION_2, value);
}
else if (AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_3.equals(key))
{
result.put(JsonObjects.SessionOpen.KEY_CUSTOM_DIMENSION_3, value);
}
else if (AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_4.equals(key))
{
result.put(JsonObjects.SessionOpen.KEY_CUSTOM_DIMENSION_4, value);
}
}
}
finally
{
if (null != attributesCursor)
{
attributesCursor.close();
attributesCursor = null;
}
}
final JSONObject attributes = convertAttributesToJson(provider, context, eventId);
if (null != attributes)
{
result.put(JsonObjects.SessionEvent.KEY_ATTRIBUTES, attributes);
}
}
}
else
{
/*
* This should never happen
*/
throw new RuntimeException();
}
}
finally
{
if (null != cursor)
{
cursor.close();
cursor = null;
}
}
return result;
}
/**
* Private helper to get the {@link SessionsDbColumns#_ID} for a given {@link EventsDbColumns#_ID}.
*
* @param provider Localytics database instance. Cannot be null.
* @param eventId {@link EventsDbColumns#_ID} of the event to look up
* @return The {@link SessionsDbColumns#_ID} of the session that owns the event.
*/
/* package */static long getSessionIdForEventId(final LocalyticsProvider provider, final long eventId)
{
Cursor cursor = null;
try
{
cursor = provider.query(EventsDbColumns.TABLE_NAME, new String[]
{ EventsDbColumns.SESSION_KEY_REF }, String.format("%s = ?", EventsDbColumns._ID), new String[] { Long.toString(eventId) }, null); //$NON-NLS-1$
if (cursor.moveToFirst())
{
return cursor.getLong(cursor.getColumnIndexOrThrow(EventsDbColumns.SESSION_KEY_REF));
}
/*
* This should never happen
*/
throw new RuntimeException();
}
finally
{
if (null != cursor)
{
cursor.close();
cursor = null;
}
}
}
/**
* Private helper to get the {@link SessionsDbColumns#UUID} for a given {@link SessionsDbColumns#_ID}.
*
* @param provider Localytics database instance. Cannot be null.
* @param sessionId {@link SessionsDbColumns#_ID} of the event to look up
* @return The {@link SessionsDbColumns#UUID} of the session.
*/
/* package */static String getSessionUuid(final LocalyticsProvider provider, final long sessionId)
{
Cursor cursor = null;
try
{
cursor = provider.query(SessionsDbColumns.TABLE_NAME, new String[]
{ SessionsDbColumns.UUID }, String.format("%s = ?", SessionsDbColumns._ID), new String[] { Long.toString(sessionId) }, null); //$NON-NLS-1$
if (cursor.moveToFirst())
{
return cursor.getString(cursor.getColumnIndexOrThrow(SessionsDbColumns.UUID));
}
/*
* This should never happen
*/
throw new RuntimeException();
}
finally
{
if (null != cursor)
{
cursor.close();
cursor = null;
}
}
}
/**
* Private helper to get the {@link SessionsDbColumns#SESSION_START_WALL_TIME} for a given {@link SessionsDbColumns#_ID}.
*
* @param provider Localytics database instance. Cannot be null.
* @param sessionId {@link SessionsDbColumns#_ID} of the event to look up
* @return The {@link SessionsDbColumns#SESSION_START_WALL_TIME} of the session.
*/
/* package */static long getSessionStartTime(final LocalyticsProvider provider, final long sessionId)
{
Cursor cursor = null;
try
{
cursor = provider.query(SessionsDbColumns.TABLE_NAME, new String[]
{ SessionsDbColumns.SESSION_START_WALL_TIME }, String.format("%s = ?", SessionsDbColumns._ID), new String[] { Long.toString(sessionId) }, null); //$NON-NLS-1$
if (cursor.moveToFirst())
{
return cursor.getLong(cursor.getColumnIndexOrThrow(SessionsDbColumns.SESSION_START_WALL_TIME));
}
/*
* This should never happen
*/
throw new RuntimeException();
}
finally
{
if (null != cursor)
{
cursor.close();
cursor = null;
}
}
}
/**
* Private helper to convert an event's attributes into a {@link JSONObject} representation.
*
* @param provider Localytics database instance. Cannot be null.
* @param context Application context. Cannot be null.
* @param eventId {@link EventsDbColumns#_ID} of the event whose attributes are to be loaded.
* @return {@link JSONObject} representing the attributes of the event. The order of attributes is undefined and may
* change from call to call of this method. If the event has no attributes, returns null.
* @throws JSONException if an error occurs converting the attributes to JSON
*/
/* package */static JSONObject convertAttributesToJson(final LocalyticsProvider provider, final Context context, final long eventId) throws JSONException
{
Cursor cursor = null;
try
{
cursor = provider.query(AttributesDbColumns.TABLE_NAME, null, String.format("%s = ? AND %s != ? AND %s != ? AND %s != ? AND %s != ?", AttributesDbColumns.EVENTS_KEY_REF, AttributesDbColumns.ATTRIBUTE_KEY, AttributesDbColumns.ATTRIBUTE_KEY, AttributesDbColumns.ATTRIBUTE_KEY, AttributesDbColumns.ATTRIBUTE_KEY), new String[] { Long.toString(eventId), AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_1, AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_2, AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_3, AttributesDbColumns.ATTRIBUTE_CUSTOM_DIMENSION_4 }, null); //$NON-NLS-1$
if (cursor.getCount() == 0)
{
return null;
}
final JSONObject attributes = new JSONObject();
final int keyColumn = cursor.getColumnIndexOrThrow(AttributesDbColumns.ATTRIBUTE_KEY);
final int valueColumn = cursor.getColumnIndexOrThrow(AttributesDbColumns.ATTRIBUTE_VALUE);
while (cursor.moveToNext())
{
final String key = cursor.getString(keyColumn);
final String value = cursor.getString(valueColumn);
attributes.put(key.substring(context.getPackageName().length() + 1, key.length()), value);
}
return attributes;
}
finally
{
if (null != cursor)
{
cursor.close();
cursor = null;
}
}
}
/**
* Given an id of an upload blob, get the session id associated with that blob.
*
* @param blobId {@link UploadBlobsDbColumns#_ID} of the upload blob.
* @return id of the parent session.
*/
/* package */static long getSessionIdForBlobId(final LocalyticsProvider provider, final long blobId)
{
/*
* This implementation needs to walk up the tree of database elements.
*/
long eventId;
{
Cursor cursor = null;
try
{
cursor = provider.query(UploadBlobEventsDbColumns.TABLE_NAME, new String[]
{ UploadBlobEventsDbColumns.EVENTS_KEY_REF }, String.format("%s = ?", UploadBlobEventsDbColumns.UPLOAD_BLOBS_KEY_REF), new String[] //$NON-NLS-1$
{ Long.toString(blobId) }, null);
if (cursor.moveToFirst())
{
eventId = cursor.getLong(cursor.getColumnIndexOrThrow(UploadBlobEventsDbColumns.EVENTS_KEY_REF));
}
else
{
/*
* This should never happen
*/
throw new RuntimeException("No events associated with blob"); //$NON-NLS-1$
}
}
finally
{
if (null != cursor)
{
cursor.close();
cursor = null;
}
}
}
long sessionId;
{
Cursor cursor = null;
try
{
cursor = provider.query(EventsDbColumns.TABLE_NAME, new String[]
{ EventsDbColumns.SESSION_KEY_REF }, String.format("%s = ?", EventsDbColumns._ID), new String[] //$NON-NLS-1$
{ Long.toString(eventId) }, null);
if (cursor.moveToFirst())
{
sessionId = cursor.getLong(cursor.getColumnIndexOrThrow(EventsDbColumns.SESSION_KEY_REF));
}
else
{
/*
* This should never happen
*/
throw new RuntimeException("No session associated with event"); //$NON-NLS-1$
}
}
finally
{
if (null != cursor)
{
cursor.close();
cursor = null;
}
}
}
return sessionId;
}
}
/**
* Internal helper class to pass two objects to the Handler via the {@link Message#obj}.
*/
/*
* Once support for Android 1.6 is dropped, using Android's built-in Pair class would be preferable
*/
private static final class Pair<F, S>
{
public final F first;
public final S second;
public Pair(final F first, final S second)
{
this.first = first;
this.second = second;
}
}
}
