Java Code Examples for org.altbeacon.beacon.logging.LogManager

@Test
public void testDetectsGattBeacon2WithShortIdentifier() {
    org.robolectric.shadows.ShadowLog.stream = System.err;
    LogManager.setLogger(Loggers.verboseLogger());
    LogManager.setVerboseLoggingEnabled(true);
    LogManager.d("GattBeaconTest", "Parsing short packet");
    byte[] bytes = hexStringToByteArray("020106030334121516341210ec007261646975736e6574776f726b7307000000000000000000000000000000000000000000000000000000000000000000");
    BeaconParser parser = new BeaconParser().setBeaconLayout("s:0-1=1234,m:2-2=10,p:3-3:-41,i:4-20v");
    Beacon gattBeacon = parser.fromScanData(bytes, -55, null, 123456L);
    assertNotNull("GattBeacon should be not null if parsed successfully", gattBeacon);
    assertEquals("GattBeacon identifier length should be adjusted smaller if packet is short",
                 16,
                 gattBeacon.getId1().toByteArray().length);
    assertEquals("GattBeacon identifier should have proper first byte",
            (byte)0x00,
            gattBeacon.getId1().toByteArray()[0]);
    assertEquals("GattBeacon identifier should have proper second to last byte",
            (byte) 0x73,
            gattBeacon.getId1().toByteArray()[14]);
    assertEquals("GattBeacon identifier should have proper last byte",
            (byte)0x07,
            gattBeacon.getId1().toByteArray()[15]);

}
 

/**
 * Configures using a `ScanJob` run with the `JobScheduler` to perform scans rather than using a
 * long-running `BeaconService` to do so.
 *
 * Calling with true on devices older than Android L (5.0) will not apply the change
 * as the JobScheduler is not available.
 *
 * This value defaults to true on Android O+ and false on devices with older OS versions.
 * Accepting the default value of false is recommended on Android N and earlier because
 * otherwise beacon scans may be run only once every 15 minutes in the background, and no low
 * power scans may be performed between scanning cycles.
 *
 * Setting this value to false will disable ScanJobs when the app is run on Android 8+, which
 * can prohibit delivery of callbacks when the app is in the background unless the scanning
 * process is running in a foreground service.
 *
 * This method may only be called if bind() has not yet been called, otherwise an
 * `IllegalStateException` is thown.
 *
 * @param enabled
 */

public void setEnableScheduledScanJobs(boolean enabled) {
    if (isAnyConsumerBound()) {
        LogManager.e(TAG, "ScanJob may not be configured because a consumer is" +
                " already bound.");
        throw new IllegalStateException("Method must be called before calling bind()");
    }
    if (enabled && android.os.Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
        LogManager.e(TAG, "ScanJob may not be configured because JobScheduler is not" +
                " availble prior to Android 5.0");
        return;
    }
    if (!enabled && android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        LogManager.w(TAG, "Disabling ScanJobs on Android 8+ may disable delivery of "+
                "beacon callbacks in the background unless a foreground service is active.");
    }
    if(!enabled && android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        ScanJobScheduler.getInstance().cancelSchedule(mContext);
    }
    mScheduledScanJobsEnabled = enabled;
}
 

public void crashDetected() {
    if (android.os.Build.VERSION.SDK_INT < 18) {
        LogManager.d(TAG, "Ignoring crashes before API 18, because BLE is unsupported.");
        return;
    }
    LogManager.w(TAG, "BluetoothService crash detected");
    if (distinctBluetoothAddresses.size() > 0) {
        LogManager.d(TAG, "Distinct Bluetooth devices seen at crash: %s",
                distinctBluetoothAddresses.size());
    }
    long nowTimestamp = SystemClock.elapsedRealtime();
    lastBluetoothCrashDetectionTime = nowTimestamp;
    detectedCrashCount++;

    if (recoveryInProgress) {
        LogManager.d(TAG, "Ignoring Bluetooth crash because recovery is already in progress.");
    }
    else {
        startRecovery();
    }
    processStateChange();

}
 

private BluetoothLeScanner getScanner() {
    try {
        if (mScanner == null) {
            LogManager.d(TAG, "Making new Android L scanner");
            BluetoothAdapter bluetoothAdapter = getBluetoothAdapter();
            if (bluetoothAdapter != null) {
                mScanner = getBluetoothAdapter().getBluetoothLeScanner();
            }
            if (mScanner == null) {
                LogManager.w(TAG, "Failed to make new Android L scanner");
            }
        }
    }
    catch (SecurityException e) {
        LogManager.w(TAG, "SecurityException making new Android L scanner");
    }
    return mScanner;
}
 

private void cancelDiscovery() {
    try {
        Thread.sleep(TIME_TO_LET_DISCOVERY_RUN_MILLIS);
        if (!discoveryStartConfirmed) {
            LogManager.w(TAG, "BluetoothAdapter.ACTION_DISCOVERY_STARTED never received.  Recovery may fail.");
        }

        final BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
        if (adapter.isDiscovering()) {
            LogManager.d(TAG, "Cancelling discovery");
            adapter.cancelDiscovery();
        }
        else {
            LogManager.d(TAG, "Discovery not running.  Won't cancel it");
        }
    } catch (InterruptedException e) {
        LogManager.d(TAG, "DiscoveryCanceller sleep interrupted.");
    }
}
 

/**
 * Returns the job id to be used to schedule this job.  This may be set in the
 * AndroidManifest.xml or in single process applications by using #setOverrideJobId
 * @param context
 * @return
 */
public static int getJobId(Context context) {
    if (sOverrideJobId >= 0) {
        LogManager.i(TAG, "Using BluetoothTestJob JobId from static override: "+
                sOverrideJobId);
        return sOverrideJobId;
    }
    PackageItemInfo info = null;
    try {
        info = context.getPackageManager().getServiceInfo(new ComponentName(context,
                BluetoothTestJob.class), PackageManager.GET_META_DATA);
    } catch (PackageManager.NameNotFoundException e) { /* do nothing here */ }
    if (info != null && info.metaData != null && info.metaData.get("jobId") != null) {
        int jobId = info.metaData.getInt("jobId");
        LogManager.i(TAG, "Using BluetoothTestJob JobId from manifest: "+jobId);
        return jobId;
    }
    else {
        throw new RuntimeException("Cannot get job id from manifest.  " +
                "Make sure that the BluetoothTestJob is configured in the manifest.");
    }
}
 

/**
 * Calculated the estimated distance in meters to the beacon based on a reference rssi at 1m
 * and the known actual rssi at the current location
 *
 * @param txPower
 * @param rssi
 * @return estimated distance
 */
@Override
public double calculateDistance(int txPower, double rssi) {
    if (rssi == 0) {
        return -1.0; // if we cannot determine accuracy, return -1.
    }

    LogManager.d(TAG, "calculating distance based on mRssi of %s and txPower of %s", rssi, txPower);


    double ratio = rssi*1.0/txPower;
    double distance;
    if (ratio < 1.0) {
        distance =  Math.pow(ratio,10);
    }
    else {
        distance =  (mCoefficient1)*Math.pow(ratio,mCoefficient2) + mCoefficient3;
    }
    LogManager.d(TAG, "avg mRssi: %s distance: %s", rssi, distance);
    return distance;
}
 

/**
 * Constructor to bootstrap your Application on an entry/exit from a single region.
 *
 * @param context
 * @param monitorNotifier
 * @param region
 */
public RegionBootstrap(final Context context, final MonitorNotifier monitorNotifier, Region region) {
    if (context == null) {
        throw new NullPointerException("Application Context should not be null");
    }
    this.context = context.getApplicationContext();
    this.monitorNotifier = monitorNotifier;
    regions = new ArrayList<Region>();
    regions.add(region);

    beaconManager = BeaconManager.getInstanceForApplication(context);
    beaconConsumer = new InternalBeaconConsumer();
    if (beaconManager.isBackgroundModeUninitialized()) {
        beaconManager.setBackgroundMode(true);
    }
    beaconManager.bind(beaconConsumer);
    LogManager.d(TAG, "Waiting for BeaconService connection");
}
 

/**
 * Constructor to bootstrap your Application on an entry/exit from multiple regions
 *
 * @param context
 * @param monitorNotifier
 * @param regions
 */
public RegionBootstrap(final Context context, final MonitorNotifier monitorNotifier, List<Region> regions) {
    if (context == null) {
        throw new NullPointerException("Application Context should not be null");
    }
    this.context = context.getApplicationContext();
    this.monitorNotifier = monitorNotifier;

    this.regions = regions;

    beaconManager = BeaconManager.getInstanceForApplication(context);
    beaconConsumer = new InternalBeaconConsumer();
    if (beaconManager.isBackgroundModeUninitialized()) {
        beaconManager.setBackgroundMode(true);
    }
    beaconManager.bind(beaconConsumer);
    LogManager.d(TAG, "Waiting for BeaconService connection");
}
 

/**
 * Constructor to bootstrap your Application on an entry/exit from a single region.
 *
 * @param application
 * @param region
 */
public RegionBootstrap(BootstrapNotifier application, Region region) {
    if (application.getApplicationContext() == null) {
        throw new NullPointerException("The BootstrapNotifier instance is returning null from its getApplicationContext() method.  Have you implemented this method?");
    }
    this.context = application.getApplicationContext();
    regions = new ArrayList<Region>();
    regions.add(region);
    this.monitorNotifier = application;
    beaconManager = BeaconManager.getInstanceForApplication(context);
    beaconConsumer = new InternalBeaconConsumer();
    if (beaconManager.isBackgroundModeUninitialized()) {
        beaconManager.setBackgroundMode(true);
    }
    beaconManager.bind(beaconConsumer);
    LogManager.d(TAG, "Waiting for BeaconService connection");
}
 

/**
 * Tells the <code>BeaconService</code> to start looking for beacons that match the passed
 * <code>Region</code> object.  Note that the Region's unique identifier must be retained to
 * later call the stopMonitoringBeaconsInRegion method.
 *
 * @param region
 * @see BeaconManager#setMonitorNotifier(MonitorNotifier)
 * @see BeaconManager#stopMonitoringBeaconsInRegion(Region region)
 * @see MonitorNotifier
 * @see Region
 */
@TargetApi(18)
public void startMonitoringBeaconsInRegion(@NonNull Region region) throws RemoteException {
    if (!isBleAvailableOrSimulated()) {
        LogManager.w(TAG, "Method invocation will be ignored.");
        return;
    }
    if (determineIfCalledFromSeparateScannerProcess()) {
        return;
    }
    if (mScheduledScanJobsEnabled) {
        MonitoringStatus.getInstanceForApplication(mContext).addRegion(region, new Callback(callbackPackageName()));
    }
    applyChangesToServices(BeaconService.MSG_START_MONITORING, region);

    if (isScannerInDifferentProcess()) {
        MonitoringStatus.getInstanceForApplication(mContext).addLocalRegion(region);
    }
    this.requestStateForRegion(region);
}
 

@MainThread
protected void scheduleScanCycleStop() {
    // Stops scanning after a pre-defined scan period.
    long millisecondsUntilStop = mScanCycleStopTime - SystemClock.elapsedRealtime();
    if (mScanningEnabled && millisecondsUntilStop > 0) {
        LogManager.d(TAG, "Waiting to stop scan cycle for another %s milliseconds",
                millisecondsUntilStop);
        if (mBackgroundFlag) {
            setWakeUpAlarm();
        }
        mHandler.postDelayed(new Runnable() {
            @MainThread
            @Override
            public void run() {
                scheduleScanCycleStop();
            }
        }, millisecondsUntilStop > 1000 ? 1000 : millisecondsUntilStop);
    } else {
        finishScanCycle();
    }
}
 

public void scheduleAfterBackgroundWakeup(Context context, List<ScanResult> scanResults) {
    if (scanResults != null) {
        mBackgroundScanResultQueue.addAll(scanResults);
    }
    synchronized (this) {
        // We typically get a bunch of calls in a row here, separated by a few millis.  Only do this once.
        if (System.currentTimeMillis() - mScanJobScheduleTime > MIN_MILLIS_BETWEEN_SCAN_JOB_SCHEDULING) {
            LogManager.d(TAG, "scheduling an immediate scan job because last did "+(System.currentTimeMillis() - mScanJobScheduleTime)+"millis ago.");
            mScanJobScheduleTime = System.currentTimeMillis();
        }
        else {
            LogManager.d(TAG, "Not scheduling an immediate scan job because we just did recently.");
            return;
        }
    }
    ScanState scanState = ScanState.restore(context);
    schedule(context, scanState, true);
}
 

@Override
public boolean onStopJob(JobParameters params) {
    // See corresponding synchronized block in onStartJob
    synchronized(ScanJob.this) {
        mStopCalled = true;
        if (params.getJobId() == getPeriodicScanJobId(this)) {
            LogManager.i(TAG, "onStopJob called for periodic scan " + this);
        }
        else {
            LogManager.i(TAG, "onStopJob called for immediate scan " + this);
        }
        LogManager.d(TAG, "ScanJob Lifecycle STOP: "+ScanJob.this);
        // Cancel the stop timer.  The OS is stopping prematurely
        mStopHandler.removeCallbacksAndMessages(null);

        stopScanning();
        startPassiveScanIfNeeded();
        if (mScanHelper != null) {
            mScanHelper.terminateThreads();
        }
    }
    return false;
}
 

private boolean initialzeScanHelper() {
    mScanState = ScanState.restore(ScanJob.this);
    if (mScanState != null) {
        ScanHelper scanHelper = new ScanHelper(this);
        mScanState.setLastScanStartTimeMillis(System.currentTimeMillis());
        scanHelper.setMonitoringStatus(mScanState.getMonitoringStatus());
        scanHelper.setRangedRegionState(mScanState.getRangedRegionState());
        scanHelper.setBeaconParsers(mScanState.getBeaconParsers());
        scanHelper.setExtraDataBeaconTracker(mScanState.getExtraBeaconDataTracker());
        if (scanHelper.getCycledScanner() == null) {
            try {
                scanHelper.createCycledLeScanner(mScanState.getBackgroundMode(), null);
            }
            catch (OutOfMemoryError e) {
                LogManager.w(TAG, "Failed to create CycledLeScanner thread.");
                return false;
            }
        }
        mScanHelper = scanHelper;
    }
    else {
        return false;
    }
    return true;
}
 

@Test
public void testDetectsGattBeacon() {
    org.robolectric.shadows.ShadowLog.stream = System.err;
    LogManager.setLogger(Loggers.verboseLogger());
    LogManager.setVerboseLoggingEnabled(true);
    System.err.println("verbose logging:"+LogManager.isVerboseLoggingEnabled());
    byte[] bytes = hexStringToByteArray("020106030334121516341200e72f234454f4911ba9ffa6000000000001000000000000000000000000000000000000000000000000000000000000000000");
    BeaconParser parser = new BeaconParser().setBeaconLayout("s:0-1=1234,m:2-2=00,p:3-3:-41,i:4-13,i:14-19");
    assertNotNull("Service uuid parsed should not be null", parser.getServiceUuid());
    Beacon gattBeacon = parser.fromScanData(bytes, -55, null, 123456L);
    assertNotNull("GattBeacon should be not null if parsed successfully", gattBeacon);
    assertEquals("id1 should be parsed", "0x2f234454f4911ba9ffa6", gattBeacon.getId1().toString());
    assertEquals("id2 should be parsed", "0x000000000001", gattBeacon.getId2().toString());
    assertEquals("serviceUuid should be parsed", 0x1234, gattBeacon.getServiceUuid());
    assertEquals("txPower should be parsed", -66, gattBeacon.getTxPower());
}
 

@MainThread
public void stop() {
    LogManager.d(TAG, "stop called");
    mScanningEnabled = false;
    if (mScanCyclerStarted) {
        scanLeDevice(false);
        // If we have left scanning on between scan periods, now is the time to shut it off.
        if (mScanningLeftOn) {
            LogManager.d(TAG, "Stopping scanning previously left on.");
            mScanningLeftOn = false;
            try {
                LogManager.d(TAG, "stopping bluetooth le scan");
                finishScan();
            } catch (Exception e) {
                LogManager.w(e, TAG, "Internal Android exception scanning for beacons");
            }
        }
    } else {
        LogManager.d(TAG, "scanning already stopped");
    }
}
 

@Test
public void testParsesBeaconMissingDataField() {
    LogManager.setLogger(Loggers.verboseLogger());
    org.robolectric.shadows.ShadowLog.stream = System.err;
    byte[] bytes = hexStringToByteArray("02011a1aff1801beac2f234454cf6d4a0fadf2f4911ba9ffa600010002c5000000");
    BeaconParser parser = new BeaconParser();
    parser.setBeaconLayout("m:2-3=beac,i:4-19,i:20-21,i:22-23,p:24-24,d:25-25");
    Beacon beacon = parser.fromScanData(bytes, -55, null, 123456L);
    assertEquals("mRssi should be as passed in", -55, beacon.getRssi());
    assertEquals("uuid should be parsed", "2f234454-cf6d-4a0f-adf2-f4911ba9ffa6", beacon.getIdentifier(0).toString());
    assertEquals("id2 should be parsed", "1", beacon.getIdentifier(1).toString());
    assertEquals("id3 should be parsed", "2", beacon.getIdentifier(2).toString());
    assertEquals("txPower should be parsed", -59, beacon.getTxPower());
    assertEquals("manufacturer should be parsed", 0x118 ,beacon.getManufacturer());
    assertEquals("missing data field zero should be zero", new Long(0l), beacon.getDataFields().get(0));

}
 

/**
 * Calculates a qualitative match score between two different Android device models for the
 * purposes of how likely they are to have similar Bluetooth signal level responses
 * @param otherModel
 * @return match quality, higher numbers are a better match
 */
public int matchScore(AndroidModel otherModel) {
    int score = 0;
    if (this.mManufacturer.equalsIgnoreCase(otherModel.mManufacturer)) {
        score = 1;
    }
    if (score ==1 && this.mModel.equals(otherModel.mModel)) {
        score = 2;
    }
    if (score == 2 && this.mBuildNumber.equals(otherModel.mBuildNumber)) {
        score = 3;
    }
    if (score == 3 && this.mVersion.equals(otherModel.mVersion)) {
        score = 4;
    }
    LogManager.d(TAG, "Score is %s for %s compared to %s", score, toString(), otherModel);
    return score;
}
 

@MainThread
public void destroy() {
    LogManager.d(TAG, "Destroying");

    // Remove any postDelayed Runnables queued for the next scan cycle
    mHandler.removeCallbacksAndMessages(null);
    // We cannot quit the thread used by the handler until queued Runnables have been processed,
    // because the handler is what stops scanning, and we do not want scanning left on.
    // So we stop the thread using the handler, so we make sure it happens after all other
    // waiting Runnables are finished.
    mScanHandler.post(new Runnable() {
        @WorkerThread
        @Override
        public void run() {
            LogManager.d(TAG, "Quitting scan thread");
            mScanThread.quit();
        }
    });
    cleanupCancelAlarmOnUserSwitch();
}
 

public int getScanJobRuntimeMillis() {
    long scanPeriodMillis;
    LogManager.d(TAG, "ScanState says background mode for ScanJob is "+getBackgroundMode());
    if (getBackgroundMode()) {
        scanPeriodMillis = getBackgroundScanPeriod();
    }
    else {
        scanPeriodMillis = getForegroundScanPeriod();
    }
    if (!getBackgroundMode()) {
        // if we are in the foreground, we keep the scan job going for the minimum interval
        if (scanPeriodMillis < MIN_SCAN_JOB_INTERVAL_MILLIS) {
            return MIN_SCAN_JOB_INTERVAL_MILLIS;
        }
    }
    return (int) scanPeriodMillis;
}
 

@Override
public double calculateRssi() {
    refreshMeasurements();
    int size = mMeasurements.size();
    int startIndex = 0;
    int endIndex = size -1;
    if (size > 2) {
        startIndex = size/10+1;
        endIndex = size-size/10-2;
    }

    double sum = 0;
    for (int i = startIndex; i <= endIndex; i++) {
        sum += mMeasurements.get(i).rssi;
    }
    double runningAverage = sum/(endIndex-startIndex+1);

    LogManager.d(TAG, "Running average mRssi based on %s measurements: %s",
            size, runningAverage);
    return runningAverage;
}
 

public void commitMeasurements() {
     if (!getFilter().noMeasurementsAvailable()) {
         double runningAverage = getFilter().calculateRssi();
         mBeacon.setRunningAverageRssi(runningAverage);
         mBeacon.setRssiMeasurementCount(getFilter().getMeasurementCount());
         LogManager.d(TAG, "calculated new runningAverageRssi: %s", runningAverage);
    }
    else {
        LogManager.d(TAG, "No measurements available to calculate running average");
    }
    mBeacon.setPacketCount(packetCount);
    mBeacon.setFirstCycleDetectionTimestamp(firstCycleDetectionTimestamp);
    mBeacon.setLastCycleDetectionTimestamp(lastCycleDetectionTimestamp);
    packetCount = 0;
    firstCycleDetectionTimestamp = 0L;
    lastCycleDetectionTimestamp = 0L;
}
 

/**
 * Tells the <code>BeaconService</code> to stop looking for beacons that match the passed
 * <code>Region</code> object.  Note that the Region's unique identifier is used to match it to
 * an existing monitored Region.
 *
 * @param region
 * @see BeaconManager#setMonitorNotifier(MonitorNotifier)
 * @see BeaconManager#startMonitoringBeaconsInRegion(Region region)
 * @see MonitorNotifier
 * @see Region
 */
@TargetApi(18)
public void stopMonitoringBeaconsInRegion(@NonNull Region region) throws RemoteException {
    if (!isBleAvailableOrSimulated()) {
        LogManager.w(TAG, "Method invocation will be ignored.");
        return;
    }
    if (determineIfCalledFromSeparateScannerProcess()) {
        return;
    }
    if (mScheduledScanJobsEnabled) {
        MonitoringStatus.getInstanceForApplication(mContext).removeRegion(region);
    }
    applyChangesToServices(BeaconService.MSG_STOP_MONITORING, region);
    if (isScannerInDifferentProcess()) {
        MonitoringStatus.getInstanceForApplication(mContext).removeLocalRegion(region);
    }
}
 

/**
     * Constructs a new BackgroundSwitchWatcher
     *
     * @param context
     */
public BackgroundSwitchWatcher(Context context) {
        if (android.os.Build.VERSION.SDK_INT < 18) {
            LogManager.w(TAG, "BackgroundSwitchWatcher requires API 18 or higher.");
        }
        mContext = context;
        ((Application)context.getApplicationContext()).registerActivityLifecycleCallbacks(this);
    }
 

@Override
public void onActivityStarted(Activity activity) {
    activeActivityCount++;
    LogManager.d(TAG, "activity started: %s active activities: %s", activity, activeActivityCount);

    if (activeActivityCount == 1) {
        BeaconLocatorApp.from(mContext).enableBackgroundScan(false);
    }
}
 

@Override
public void onActivityStopped(Activity activity) {
    activeActivityCount--;
    LogManager.d(TAG,"activity stopped: %s active activities: %s", activity, activeActivityCount);
    if (activeActivityCount <= 0) {
        BeaconLocatorApp.from(mContext).enableBackgroundScan(true);
    }
}
 

/**
 * If set to true, bluetooth will be power cycled on any tests run that determine bluetooth is
 * in a bad state.
 *
 * @param context
 */
@SuppressWarnings("unused")
@RequiresApi(21)
public void enablePowerCycleOnFailures(Context context) {
    initializeWithContext(context);
    if (this.mLocalBroadcastManager != null) {
        this.mLocalBroadcastManager.registerReceiver(this.mBluetoothEventReceiver,
                new IntentFilter("onScanFailed"));
        this.mLocalBroadcastManager.registerReceiver(this.mBluetoothEventReceiver,
                new IntentFilter("onStartFailure"));
        LogManager.d(TAG,
                "Medic monitoring for transmission and scan failure notifications with receiver: "
                        + this.mBluetoothEventReceiver);
    }
}
 

@Test
public void testParseWrongFormatReturnsNothing() {
    BeaconManager.setDebug(true);
    org.robolectric.shadows.ShadowLog.stream = System.err;
    LogManager.d("XXX", "testParseWrongFormatReturnsNothing start");
    byte[] bytes = hexStringToByteArray("02011a1aff1801ffff2f234454cf6d4a0fadf2f4911ba9ffa600010002c509");
    AltBeaconParser parser = new AltBeaconParser();
    Beacon beacon = parser.fromScanData(bytes, -55, null, 123456L);
    LogManager.d("XXX", "testParseWrongFormatReturnsNothing end");
    assertNull("Beacon should be null if not parsed successfully", beacon);
}
 

private void logSample(Sample sample, boolean showHeader) {
    if (showHeader) {
        LogManager.d(TAG, "sample start time, sample stop time, first detection" +
                " time, last detection time, max millis between detections, detection count");
    }
    LogManager.d(TAG, "%s, %s, %s, %s, %s, %s",
            formattedDate(sample.sampleStartTime), formattedDate(sample.sampleStopTime),
            formattedDate(sample.firstDetectionTime), formattedDate(sample.lastDetectionTime),
            sample.maxMillisBetweenDetections, sample.detectionCount);
}