Java Code Examples for android.os.CancellationSignal#setRemote()

The following examples show how to use android.os.CancellationSignal#setRemote() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: ContentResolver.java    From AndroidComponentPlugin with Apache License 2.0 6 votes vote down vote up 
/**
 * This allows clients to request an explicit refresh of content identified by {@code uri}.
 * <p>
 * Client code should only invoke this method when there is a strong indication (such as a user
 * initiated pull to refresh gesture) that the content is stale.
 * <p>
 *
 * @param url The Uri identifying the data to refresh.
 * @param args Additional options from the client. The definitions of these are specific to the
 *            content provider being called.
 * @param cancellationSignal A signal to cancel the operation in progress, or {@code null} if
 *            none. For example, if you called refresh on a particular uri, you should call
 *            {@link CancellationSignal#throwIfCanceled()} to check whether the client has
 *            canceled the refresh request.
 * @return true if the provider actually tried refreshing.
 */
public final boolean refresh(@NonNull Uri url, @Nullable Bundle args,
        @Nullable CancellationSignal cancellationSignal) {
    Preconditions.checkNotNull(url, "url");
    IContentProvider provider = acquireProvider(url);
    if (provider == null) {
        return false;
    }

    try {
        ICancellationSignal remoteCancellationSignal = null;
        if (cancellationSignal != null) {
            cancellationSignal.throwIfCanceled();
            remoteCancellationSignal = provider.createCancellationSignal();
            cancellationSignal.setRemote(remoteCancellationSignal);
        }
        return provider.refresh(mPackageName, url, args, remoteCancellationSignal);
    } catch (RemoteException e) {
        // Arbitrary and not worth documenting, as Activity
        // Manager will kill this process shortly anyway.
        return false;
    } finally {
        releaseProvider(provider);
    }
}
Example 2
Source File: ContentResolver.java    From android_9.0.0_r45 with Apache License 2.0 6 votes vote down vote up 
/**
 * This allows clients to request an explicit refresh of content identified by {@code uri}.
 * <p>
 * Client code should only invoke this method when there is a strong indication (such as a user
 * initiated pull to refresh gesture) that the content is stale.
 * <p>
 *
 * @param url The Uri identifying the data to refresh.
 * @param args Additional options from the client. The definitions of these are specific to the
 *            content provider being called.
 * @param cancellationSignal A signal to cancel the operation in progress, or {@code null} if
 *            none. For example, if you called refresh on a particular uri, you should call
 *            {@link CancellationSignal#throwIfCanceled()} to check whether the client has
 *            canceled the refresh request.
 * @return true if the provider actually tried refreshing.
 */
public final boolean refresh(@NonNull Uri url, @Nullable Bundle args,
        @Nullable CancellationSignal cancellationSignal) {
    Preconditions.checkNotNull(url, "url");
    IContentProvider provider = acquireProvider(url);
    if (provider == null) {
        return false;
    }

    try {
        ICancellationSignal remoteCancellationSignal = null;
        if (cancellationSignal != null) {
            cancellationSignal.throwIfCanceled();
            remoteCancellationSignal = provider.createCancellationSignal();
            cancellationSignal.setRemote(remoteCancellationSignal);
        }
        return provider.refresh(mPackageName, url, args, remoteCancellationSignal);
    } catch (RemoteException e) {
        // Arbitrary and not worth documenting, as Activity
        // Manager will kill this process shortly anyway.
        return false;
    } finally {
        releaseProvider(provider);
    }
}
Example 3
Source File: ContentProviderClient.java    From android_9.0.0_r45 with Apache License 2.0 6 votes vote down vote up 
/** See {@link ContentProvider#refresh} */
public boolean refresh(Uri url, @Nullable Bundle args,
        @Nullable CancellationSignal cancellationSignal) throws RemoteException {
    Preconditions.checkNotNull(url, "url");

    beforeRemote();
    try {
        ICancellationSignal remoteCancellationSignal = null;
        if (cancellationSignal != null) {
            cancellationSignal.throwIfCanceled();
            remoteCancellationSignal = mContentProvider.createCancellationSignal();
            cancellationSignal.setRemote(remoteCancellationSignal);
        }
        return mContentProvider.refresh(mPackageName, url, args, remoteCancellationSignal);
    } catch (DeadObjectException e) {
        if (!mStable) {
            mContentResolver.unstableProviderDied(mContentProvider);
        }
        throw e;
    } finally {
        afterRemote();
    }
}
Example 4
Source File: ContentProviderClient.java    From android_9.0.0_r45 with Apache License 2.0 6 votes vote down vote up 
/**
 * See {@link ContentProvider#openFile ContentProvider.openFile}.  Note that
 * this <em>does not</em>
 * take care of non-content: URIs such as file:.  It is strongly recommended
 * you use the {@link ContentResolver#openFileDescriptor
 * ContentResolver.openFileDescriptor} API instead.
 */
public @Nullable ParcelFileDescriptor openFile(@NonNull Uri url, @NonNull String mode,
        @Nullable CancellationSignal signal) throws RemoteException, FileNotFoundException {
    Preconditions.checkNotNull(url, "url");
    Preconditions.checkNotNull(mode, "mode");

    beforeRemote();
    try {
        ICancellationSignal remoteSignal = null;
        if (signal != null) {
            signal.throwIfCanceled();
            remoteSignal = mContentProvider.createCancellationSignal();
            signal.setRemote(remoteSignal);
        }
        return mContentProvider.openFile(mPackageName, url, mode, remoteSignal, null);
    } catch (DeadObjectException e) {
        if (!mStable) {
            mContentResolver.unstableProviderDied(mContentProvider);
        }
        throw e;
    } finally {
        afterRemote();
    }
}
Example 5
Source File: ContentProviderClient.java    From android_9.0.0_r45 with Apache License 2.0 6 votes vote down vote up 
/**
 * See {@link ContentProvider#openAssetFile ContentProvider.openAssetFile}.
 * Note that this <em>does not</em>
 * take care of non-content: URIs such as file:.  It is strongly recommended
 * you use the {@link ContentResolver#openAssetFileDescriptor
 * ContentResolver.openAssetFileDescriptor} API instead.
 */
public @Nullable AssetFileDescriptor openAssetFile(@NonNull Uri url, @NonNull String mode,
        @Nullable CancellationSignal signal) throws RemoteException, FileNotFoundException {
    Preconditions.checkNotNull(url, "url");
    Preconditions.checkNotNull(mode, "mode");

    beforeRemote();
    try {
        ICancellationSignal remoteSignal = null;
        if (signal != null) {
            signal.throwIfCanceled();
            remoteSignal = mContentProvider.createCancellationSignal();
            signal.setRemote(remoteSignal);
        }
        return mContentProvider.openAssetFile(mPackageName, url, mode, remoteSignal);
    } catch (DeadObjectException e) {
        if (!mStable) {
            mContentResolver.unstableProviderDied(mContentProvider);
        }
        throw e;
    } finally {
        afterRemote();
    }
}
Example 6
Source File: ContentProviderClient.java    From android_9.0.0_r45 with Apache License 2.0 6 votes vote down vote up 
/** See {@link ContentProvider#openTypedAssetFile ContentProvider.openTypedAssetFile} */
public final @Nullable AssetFileDescriptor openTypedAssetFileDescriptor(@NonNull Uri uri,
        @NonNull String mimeType, @Nullable Bundle opts, @Nullable CancellationSignal signal)
                throws RemoteException, FileNotFoundException {
    Preconditions.checkNotNull(uri, "uri");
    Preconditions.checkNotNull(mimeType, "mimeType");

    beforeRemote();
    try {
        ICancellationSignal remoteSignal = null;
        if (signal != null) {
            signal.throwIfCanceled();
            remoteSignal = mContentProvider.createCancellationSignal();
            signal.setRemote(remoteSignal);
        }
        return mContentProvider.openTypedAssetFile(
                mPackageName, uri, mimeType, opts, remoteSignal);
    } catch (DeadObjectException e) {
        if (!mStable) {
            mContentResolver.unstableProviderDied(mContentProvider);
        }
        throw e;
    } finally {
        afterRemote();
    }
}
Example 7
Source File: ContentProviderClient.java    From android_9.0.0_r45 with Apache License 2.0 5 votes vote down vote up 
/** See {@link ContentProvider#query ContentProvider.query} */
public @Nullable Cursor query(@NonNull Uri uri, @Nullable String[] projection,
        Bundle queryArgs, @Nullable CancellationSignal cancellationSignal)
                throws RemoteException {
    Preconditions.checkNotNull(uri, "url");

    beforeRemote();
    try {
        ICancellationSignal remoteCancellationSignal = null;
        if (cancellationSignal != null) {
            cancellationSignal.throwIfCanceled();
            remoteCancellationSignal = mContentProvider.createCancellationSignal();
            cancellationSignal.setRemote(remoteCancellationSignal);
        }
        final Cursor cursor = mContentProvider.query(
                mPackageName, uri, projection, queryArgs, remoteCancellationSignal);
        if (cursor == null) {
            return null;
        }
        return new CursorWrapperInner(cursor);
    } catch (DeadObjectException e) {
        if (!mStable) {
            mContentResolver.unstableProviderDied(mContentProvider);
        }
        throw e;
    } finally {
        afterRemote();
    }
}