Java Code Examples for android.os.ParcelFileDescriptor#parseMode()

The following examples show how to use android.os.ParcelFileDescriptor#parseMode() . 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: ContentProvider.java    From AndroidComponentPlugin with Apache License 2.0 5 votes vote down vote up 
/**
 * Convenience for subclasses that wish to implement {@link #openFile}
 * by looking up a column named "_data" at the given URI.
 *
 * @param uri The URI to be opened.
 * @param mode The file mode.  May be "r" for read-only access,
 * "w" for write-only access (erasing whatever data is currently in
 * the file), "wa" for write-only access to append to any existing data,
 * "rw" for read and write access on any existing data, and "rwt" for read
 * and write access that truncates any existing file.
 *
 * @return Returns a new ParcelFileDescriptor that can be used by the
 * client to access the file.
 */
protected final @NonNull ParcelFileDescriptor openFileHelper(@NonNull Uri uri,
        @NonNull String mode) throws FileNotFoundException {
    Cursor c = query(uri, new String[]{"_data"}, null, null, null);
    int count = (c != null) ? c.getCount() : 0;
    if (count != 1) {
        // If there is not exactly one result, throw an appropriate
        // exception.
        if (c != null) {
            c.close();
        }
        if (count == 0) {
            throw new FileNotFoundException("No entry for " + uri);
        }
        throw new FileNotFoundException("Multiple items at " + uri);
    }

    c.moveToFirst();
    int i = c.getColumnIndex("_data");
    String path = (i >= 0 ? c.getString(i) : null);
    c.close();
    if (path == null) {
        throw new FileNotFoundException("Column _data not found.");
    }

    int modeBits = ParcelFileDescriptor.parseMode(mode);
    return ParcelFileDescriptor.open(new File(path), modeBits);
}
Example 2
Source File: ContentProvider.java    From android_9.0.0_r45 with Apache License 2.0 5 votes vote down vote up 
/**
 * Convenience for subclasses that wish to implement {@link #openFile}
 * by looking up a column named "_data" at the given URI.
 *
 * @param uri The URI to be opened.
 * @param mode The file mode.  May be "r" for read-only access,
 * "w" for write-only access (erasing whatever data is currently in
 * the file), "wa" for write-only access to append to any existing data,
 * "rw" for read and write access on any existing data, and "rwt" for read
 * and write access that truncates any existing file.
 *
 * @return Returns a new ParcelFileDescriptor that can be used by the
 * client to access the file.
 */
protected final @NonNull ParcelFileDescriptor openFileHelper(@NonNull Uri uri,
        @NonNull String mode) throws FileNotFoundException {
    Cursor c = query(uri, new String[]{"_data"}, null, null, null);
    int count = (c != null) ? c.getCount() : 0;
    if (count != 1) {
        // If there is not exactly one result, throw an appropriate
        // exception.
        if (c != null) {
            c.close();
        }
        if (count == 0) {
            throw new FileNotFoundException("No entry for " + uri);
        }
        throw new FileNotFoundException("Multiple items at " + uri);
    }

    c.moveToFirst();
    int i = c.getColumnIndex("_data");
    String path = (i >= 0 ? c.getString(i) : null);
    c.close();
    if (path == null) {
        throw new FileNotFoundException("Column _data not found.");
    }

    int modeBits = ParcelFileDescriptor.parseMode(mode);
    return ParcelFileDescriptor.open(new File(path), modeBits);
}
Example 3
Source File: SimpleFileContentProvider.java    From android-test with Apache License 2.0 5 votes vote down vote up 
private static int parseMode(String mode) {
  if (VERSION.SDK_INT >= VERSION_CODES.KITKAT) {
    return ParcelFileDescriptor.parseMode(mode);
  } else {
    final int modeBits;
    if ("r".equals(mode)) {
      modeBits = ParcelFileDescriptor.MODE_READ_ONLY;
    } else if ("w".equals(mode) || "wt".equals(mode)) {
      modeBits = ParcelFileDescriptor.MODE_WRITE_ONLY
          | ParcelFileDescriptor.MODE_CREATE
          | ParcelFileDescriptor.MODE_TRUNCATE;
    } else if ("wa".equals(mode)) {
      modeBits = ParcelFileDescriptor.MODE_WRITE_ONLY
          | ParcelFileDescriptor.MODE_CREATE
          | ParcelFileDescriptor.MODE_APPEND;
    } else if ("rw".equals(mode)) {
      modeBits = ParcelFileDescriptor.MODE_READ_WRITE
          | ParcelFileDescriptor.MODE_CREATE;
    } else if ("rwt".equals(mode)) {
      modeBits = ParcelFileDescriptor.MODE_READ_WRITE
          | ParcelFileDescriptor.MODE_CREATE
          | ParcelFileDescriptor.MODE_TRUNCATE;
    } else {
      throw new IllegalArgumentException("Bad mode '" + mode + "'");
    }
    return modeBits;
  }
}