Method copyTo

output/java_guava/1.4.17/ByteSource.java:255–267

Copies the contents of this byte source to the given OutputStream. Does not close output. @return the number of bytes copied @throws IOException if an I/O error occurs in the process of reading from this source or writing to output

(OutputStream output)

   */

  @CanIgnoreReturnValue
  public long copyTo(OutputStream output) throws IOException {
    checkNotNull(output);
    Closer closer = Closer.create();
    try {
      InputStream in = closer.register(openStream());
      return ByteStreams.copy(in, output);
    } catch (Throwable e) {
      throw closer.rethrow(e);
    } finally {
      closer.close();
    }
  }

  /**
   * Copies the contents of this byte source to the given {@code ByteSink}.