Method writeFrom

output/java_guava/1.4.16/CharSink.java:159–173

Writes all the text from the given Readable (such as a Reader) to this sink. Does not close readable if it is Closeable. @return the number of characters written @throws IOException if an I/O error occurs in the process of reading from readable or writing

(Readable readable)

   */

  @CanIgnoreReturnValue
  public long writeFrom(Readable readable) throws IOException {
    checkNotNull(readable);
    Closer closer = Closer.create();
    try {
      Writer out = closer.register(openStream());
      long written = CharStreams.copy(readable, out);
      out.flush(); // https://code.google.com/p/guava-libraries/issues/detail?id=1330
      return written;
    } catch (Throwable e) {
      throw closer.rethrow(e);
    } finally {
      closer.close();
    }
  }
}