Java Code Examples for android.content.res.AssetFileDescriptor#UNKNOWN_LENGTH

The following examples show how to use android.content.res.AssetFileDescriptor#UNKNOWN_LENGTH . 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: StorageProvider.java    From FireFiles with Apache License 2.0 6 votes vote down vote up 
protected AssetFileDescriptor openVideoThumbnailCleared(long id, CancellationSignal signal)
        throws FileNotFoundException {
    final ContentResolver resolver = getContext().getContentResolver();
    Cursor cursor = null;
    try {
        cursor = resolver.query(Video.Thumbnails.EXTERNAL_CONTENT_URI,
                VideoThumbnailQuery.PROJECTION, Video.Thumbnails.VIDEO_ID + "=" + id, null,
                null);
        if (cursor.moveToFirst()) {
            final String data = cursor.getString(VideoThumbnailQuery._DATA);
            return new AssetFileDescriptor(ParcelFileDescriptor.open(
                    new File(data), ParcelFileDescriptor.MODE_READ_ONLY), 0,
                    AssetFileDescriptor.UNKNOWN_LENGTH);
        }
    } finally {
        IoUtils.closeQuietly(cursor);
    }
    return null;
}
Example 2
Source File: StorageProvider.java    From FireFiles with Apache License 2.0 6 votes vote down vote up 
protected AssetFileDescriptor openVideoThumbnailCleared(long id, CancellationSignal signal)
        throws FileNotFoundException {
    final ContentResolver resolver = getContext().getContentResolver();
    Cursor cursor = null;
    try {
        cursor = resolver.query(Video.Thumbnails.EXTERNAL_CONTENT_URI,
                VideoThumbnailQuery.PROJECTION, Video.Thumbnails.VIDEO_ID + "=" + id, null,
                null);
        if (cursor.moveToFirst()) {
            final String data = cursor.getString(VideoThumbnailQuery._DATA);
            return new AssetFileDescriptor(ParcelFileDescriptor.open(
                    new File(data), ParcelFileDescriptor.MODE_READ_ONLY), 0,
                    AssetFileDescriptor.UNKNOWN_LENGTH);
        }
    } finally {
        IoUtils.closeQuietly(cursor);
    }
    return null;
}
Example 3
Source File: StorageProvider.java    From FireFiles with Apache License 2.0 6 votes vote down vote up 
protected AssetFileDescriptor openVideoThumbnailCleared(long id, CancellationSignal signal)
        throws FileNotFoundException {
    final ContentResolver resolver = getContext().getContentResolver();
    Cursor cursor = null;
    try {
        cursor = resolver.query(Video.Thumbnails.EXTERNAL_CONTENT_URI,
                VideoThumbnailQuery.PROJECTION, Video.Thumbnails.VIDEO_ID + "=" + id, null,
                null);
        if (cursor.moveToFirst()) {
            final String data = cursor.getString(VideoThumbnailQuery._DATA);
            return new AssetFileDescriptor(ParcelFileDescriptor.open(
                    new File(data), ParcelFileDescriptor.MODE_READ_ONLY), 0,
                    AssetFileDescriptor.UNKNOWN_LENGTH);
        }
    } finally {
        IoUtils.closeQuietly(cursor);
    }
    return null;
}
Example 4
Source File: StickerContentProvider.java    From flutter_whatsapp_stickers with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
private AssetFileDescriptor fetchNonAssetFile(final Uri uri, final String fileName, final String identifier) {
    try {
        final File file = new File(contentPath + identifier, fileName);
        return new AssetFileDescriptor(ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY), 0,
                AssetFileDescriptor.UNKNOWN_LENGTH);
    } catch (final IOException e) {
        Log.e(Objects.requireNonNull(getContext()).getPackageName(),
                "IOException when getting asset file, uri:" + uri, e);
        return null;
    }
}
Example 5
Source File: ContentDataSource.java    From TelePlus-Android with GNU General Public License v2.0 5 votes vote down vote up 
@Override
public long open(DataSpec dataSpec) throws ContentDataSourceException {
  try {
    uri = dataSpec.uri;
    transferInitializing(dataSpec);
    assetFileDescriptor = resolver.openAssetFileDescriptor(uri, "r");
    if (assetFileDescriptor == null) {
      throw new FileNotFoundException("Could not open file descriptor for: " + uri);
    }
    inputStream = new FileInputStream(assetFileDescriptor.getFileDescriptor());
    long assetStartOffset = assetFileDescriptor.getStartOffset();
    long skipped = inputStream.skip(assetStartOffset + dataSpec.position) - assetStartOffset;
    if (skipped != dataSpec.position) {
      // We expect the skip to be satisfied in full. If it isn't then we're probably trying to
      // skip beyond the end of the data.
      throw new EOFException();
    }
    if (dataSpec.length != C.LENGTH_UNSET) {
      bytesRemaining = dataSpec.length;
    } else {
      long assetFileDescriptorLength = assetFileDescriptor.getLength();
      if (assetFileDescriptorLength == AssetFileDescriptor.UNKNOWN_LENGTH) {
        // The asset must extend to the end of the file. If FileInputStream.getChannel().size()
        // returns 0 then the remaining length cannot be determined.
        FileChannel channel = inputStream.getChannel();
        long channelSize = channel.size();
        bytesRemaining = channelSize == 0 ? C.LENGTH_UNSET : channelSize - channel.position();
      } else {
        bytesRemaining = assetFileDescriptorLength - skipped;
      }
    }
  } catch (IOException e) {
    throw new ContentDataSourceException(e);
  }

  opened = true;
  transferStarted(dataSpec);

  return bytesRemaining;
}
Example 6
Source File: MyCloudProvider.java    From storage-samples with Apache License 2.0 5 votes vote down vote up 
@Override
public AssetFileDescriptor openDocumentThumbnail(String documentId, Point sizeHint,
                                                 CancellationSignal signal)
        throws FileNotFoundException {
    Log.v(TAG, "openDocumentThumbnail");

    final File file = getFileForDocId(documentId);
    final ParcelFileDescriptor pfd =
            ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY);
    return new AssetFileDescriptor(pfd, 0, AssetFileDescriptor.UNKNOWN_LENGTH);
}
Example 7
Source File: CrossProfileDocumentsProvider.java    From Shelter with Do What The F*ck You Want To Public License 5 votes vote down vote up 
@Override
public AssetFileDescriptor openDocumentThumbnail(String documentId, Point sizeHint, CancellationSignal signal) {
    ensureServiceBound();
    try {
        return new AssetFileDescriptor(
                mService.openThumbnail(documentId, sizeHint), 0, AssetFileDescriptor.UNKNOWN_LENGTH);
    } catch (RemoteException e) {
        return null;
    }
}
Example 8
Source File: ContentDataSource.java    From TelePlus-Android with GNU General Public License v2.0 5 votes vote down vote up 
@Override
public long open(DataSpec dataSpec) throws ContentDataSourceException {
  try {
    uri = dataSpec.uri;
    transferInitializing(dataSpec);
    assetFileDescriptor = resolver.openAssetFileDescriptor(uri, "r");
    if (assetFileDescriptor == null) {
      throw new FileNotFoundException("Could not open file descriptor for: " + uri);
    }
    inputStream = new FileInputStream(assetFileDescriptor.getFileDescriptor());
    long assetStartOffset = assetFileDescriptor.getStartOffset();
    long skipped = inputStream.skip(assetStartOffset + dataSpec.position) - assetStartOffset;
    if (skipped != dataSpec.position) {
      // We expect the skip to be satisfied in full. If it isn't then we're probably trying to
      // skip beyond the end of the data.
      throw new EOFException();
    }
    if (dataSpec.length != C.LENGTH_UNSET) {
      bytesRemaining = dataSpec.length;
    } else {
      long assetFileDescriptorLength = assetFileDescriptor.getLength();
      if (assetFileDescriptorLength == AssetFileDescriptor.UNKNOWN_LENGTH) {
        // The asset must extend to the end of the file. If FileInputStream.getChannel().size()
        // returns 0 then the remaining length cannot be determined.
        FileChannel channel = inputStream.getChannel();
        long channelSize = channel.size();
        bytesRemaining = channelSize == 0 ? C.LENGTH_UNSET : channelSize - channel.position();
      } else {
        bytesRemaining = assetFileDescriptorLength - skipped;
      }
    }
  } catch (IOException e) {
    throw new ContentDataSourceException(e);
  }

  opened = true;
  transferStarted(dataSpec);

  return bytesRemaining;
}
Example 9
Source File: AppsProvider.java    From FireFiles with Apache License 2.0 5 votes vote down vote up 
@Override
public AssetFileDescriptor openDocumentThumbnail(
        String docId, Point sizeHint, CancellationSignal signal) throws FileNotFoundException {
    // TODO: extend ExifInterface to support fds
    final ParcelFileDescriptor pfd = openDocument(docId, "r", signal);
    return new AssetFileDescriptor(pfd, 0, AssetFileDescriptor.UNKNOWN_LENGTH);
}
Example 10
Source File: AppsProvider.java    From FireFiles with Apache License 2.0 5 votes vote down vote up 
@Override
public AssetFileDescriptor openDocumentThumbnail(
        String docId, Point sizeHint, CancellationSignal signal) throws FileNotFoundException {
    // TODO: extend ExifInterface to support fds
    final ParcelFileDescriptor pfd = openDocument(docId, "r", signal);
    return new AssetFileDescriptor(pfd, 0, AssetFileDescriptor.UNKNOWN_LENGTH);
}
Example 11
Source File: AppsProvider.java    From FireFiles with Apache License 2.0 5 votes vote down vote up 
@Override
public AssetFileDescriptor openDocumentThumbnail(
        String docId, Point sizeHint, CancellationSignal signal) throws FileNotFoundException {
    // TODO: extend ExifInterface to support fds
    final ParcelFileDescriptor pfd = openDocument(docId, "r", signal);
    return new AssetFileDescriptor(pfd, 0, AssetFileDescriptor.UNKNOWN_LENGTH);
}
Example 12
Source File: ContentDataSource.java    From Telegram-FOSS with GNU General Public License v2.0 5 votes vote down vote up 
@Override
public long open(DataSpec dataSpec) throws ContentDataSourceException {
  try {
    uri = dataSpec.uri;
    transferInitializing(dataSpec);
    assetFileDescriptor = resolver.openAssetFileDescriptor(uri, "r");
    if (assetFileDescriptor == null) {
      throw new FileNotFoundException("Could not open file descriptor for: " + uri);
    }
    inputStream = new FileInputStream(assetFileDescriptor.getFileDescriptor());
    long assetStartOffset = assetFileDescriptor.getStartOffset();
    long skipped = inputStream.skip(assetStartOffset + dataSpec.position) - assetStartOffset;
    if (skipped != dataSpec.position) {
      // We expect the skip to be satisfied in full. If it isn't then we're probably trying to
      // skip beyond the end of the data.
      throw new EOFException();
    }
    if (dataSpec.length != C.LENGTH_UNSET) {
      bytesRemaining = dataSpec.length;
    } else {
      long assetFileDescriptorLength = assetFileDescriptor.getLength();
      if (assetFileDescriptorLength == AssetFileDescriptor.UNKNOWN_LENGTH) {
        // The asset must extend to the end of the file. If FileInputStream.getChannel().size()
        // returns 0 then the remaining length cannot be determined.
        FileChannel channel = inputStream.getChannel();
        long channelSize = channel.size();
        bytesRemaining = channelSize == 0 ? C.LENGTH_UNSET : channelSize - channel.position();
      } else {
        bytesRemaining = assetFileDescriptorLength - skipped;
      }
    }
  } catch (IOException e) {
    throw new ContentDataSourceException(e);
  }

  opened = true;
  transferStarted(dataSpec);

  return bytesRemaining;
}
Example 13
Source File: MyCloudProvider.java    From android-StorageProvider with Apache License 2.0 5 votes vote down vote up 
@Override
public AssetFileDescriptor openDocumentThumbnail(String documentId, Point sizeHint,
                                                 CancellationSignal signal)
        throws FileNotFoundException {
    Log.v(TAG, "openDocumentThumbnail");

    final File file = getFileForDocId(documentId);
    final ParcelFileDescriptor pfd =
            ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY);
    return new AssetFileDescriptor(pfd, 0, AssetFileDescriptor.UNKNOWN_LENGTH);
}
Example 14
Source File: FileProvider.java    From codeexamples-android with Eclipse Public License 1.0 5 votes vote down vote up 
@Override
public AssetFileDescriptor openAssetFile(Uri uri, String mode) throws FileNotFoundException {
    // Try to open an asset with the given name.
    try {
        InputStream is = getContext().getAssets().open(uri.getPath());
        // Start a new thread that pipes the stream data back to the caller.
        return new AssetFileDescriptor(
                openPipeHelper(uri, null, null, is, this), 0,
                AssetFileDescriptor.UNKNOWN_LENGTH);
    } catch (IOException e) {
        FileNotFoundException fnf = new FileNotFoundException("Unable to open " + uri);
        throw fnf;
    }
}
Example 15
Source File: ContentDataSource.java    From Telegram with GNU General Public License v2.0 5 votes vote down vote up 
@Override
public long open(DataSpec dataSpec) throws ContentDataSourceException {
  try {
    uri = dataSpec.uri;
    transferInitializing(dataSpec);
    assetFileDescriptor = resolver.openAssetFileDescriptor(uri, "r");
    if (assetFileDescriptor == null) {
      throw new FileNotFoundException("Could not open file descriptor for: " + uri);
    }
    inputStream = new FileInputStream(assetFileDescriptor.getFileDescriptor());
    long assetStartOffset = assetFileDescriptor.getStartOffset();
    long skipped = inputStream.skip(assetStartOffset + dataSpec.position) - assetStartOffset;
    if (skipped != dataSpec.position) {
      // We expect the skip to be satisfied in full. If it isn't then we're probably trying to
      // skip beyond the end of the data.
      throw new EOFException();
    }
    if (dataSpec.length != C.LENGTH_UNSET) {
      bytesRemaining = dataSpec.length;
    } else {
      long assetFileDescriptorLength = assetFileDescriptor.getLength();
      if (assetFileDescriptorLength == AssetFileDescriptor.UNKNOWN_LENGTH) {
        // The asset must extend to the end of the file. If FileInputStream.getChannel().size()
        // returns 0 then the remaining length cannot be determined.
        FileChannel channel = inputStream.getChannel();
        long channelSize = channel.size();
        bytesRemaining = channelSize == 0 ? C.LENGTH_UNSET : channelSize - channel.position();
      } else {
        bytesRemaining = assetFileDescriptorLength - skipped;
      }
    }
  } catch (IOException e) {
    throw new ContentDataSourceException(e);
  }

  opened = true;
  transferStarted(dataSpec);

  return bytesRemaining;
}
Example 16
Source File: ContentDataSource.java    From MediaSDK with Apache License 2.0 4 votes vote down vote up 
@Override
public long open(DataSpec dataSpec) throws ContentDataSourceException {
  try {
    Uri uri = dataSpec.uri;
    this.uri = uri;

    transferInitializing(dataSpec);
    AssetFileDescriptor assetFileDescriptor = resolver.openAssetFileDescriptor(uri, "r");
    this.assetFileDescriptor = assetFileDescriptor;
    if (assetFileDescriptor == null) {
      throw new FileNotFoundException("Could not open file descriptor for: " + uri);
    }
    FileInputStream inputStream = new FileInputStream(assetFileDescriptor.getFileDescriptor());
    this.inputStream = inputStream;

    long assetStartOffset = assetFileDescriptor.getStartOffset();
    long skipped = inputStream.skip(assetStartOffset + dataSpec.position) - assetStartOffset;
    if (skipped != dataSpec.position) {
      // We expect the skip to be satisfied in full. If it isn't then we're probably trying to
      // skip beyond the end of the data.
      throw new EOFException();
    }
    if (dataSpec.length != C.LENGTH_UNSET) {
      bytesRemaining = dataSpec.length;
    } else {
      long assetFileDescriptorLength = assetFileDescriptor.getLength();
      if (assetFileDescriptorLength == AssetFileDescriptor.UNKNOWN_LENGTH) {
        // The asset must extend to the end of the file. If FileInputStream.getChannel().size()
        // returns 0 then the remaining length cannot be determined.
        FileChannel channel = inputStream.getChannel();
        long channelSize = channel.size();
        bytesRemaining = channelSize == 0 ? C.LENGTH_UNSET : channelSize - channel.position();
      } else {
        bytesRemaining = assetFileDescriptorLength - skipped;
      }
    }
  } catch (IOException e) {
    throw new ContentDataSourceException(e);
  }

  opened = true;
  transferStarted(dataSpec);

  return bytesRemaining;
}