How to use

getStream

method

in

org.postgresql.util.StreamWrapper

/**
 * Send a streamable bytea encoded as a text representation with an arbitary encoding.
 */
private void streamBytea(StreamWrapper param, Writer encodingWriter) throws IOException {
  // NB: we escape everything in this path, as I don't like assuming
  // that byte values 32..127 will make it through the encoding
  // unscathed..
  InputStream stream = param.getStream();
  char[] buffer = new char[] { '\\', '\\', 0, 0, 0 };
  if (useEStringSyntax)
  {
    encodingWriter.write(' ');
    encodingWriter.write('E');
  }
  encodingWriter.write('\'');
  for (int remaining = param.getLength(); remaining > 0; --remaining)
  {
    int nextByte = stream.read();
    buffer[2] = (char)( '0' + ((nextByte >> 6) & 3));
    buffer[3] = (char)( '0' + ((nextByte >> 3) & 7));
    buffer[4] = (char)( '0' + (nextByte & 7));
    encodingWriter.write(buffer, 0, 5);
  }
  encodingWriter.write('\'');
}

private static void streamBytea(PGStream pgStream, StreamWrapper wrapper) throws IOException {
 byte[] rawData = wrapper.getBytes();
 if (rawData != null) {
  pgStream.send(rawData, wrapper.getOffset(), wrapper.getLength());
  return;
 }
 pgStream.sendStream(wrapper.getStream(), wrapper.getLength());
}

private static void streamBytea(PGStream pgStream, StreamWrapper wrapper) throws IOException {
  byte[] rawData = wrapper.getBytes();
  if (rawData != null)
  {
    pgStream.Send(rawData, wrapper.getOffset(), wrapper.getLength());
    return ;
  }
  pgStream.SendStream(wrapper.getStream(), wrapper.getLength());
}

private void copyStream(PGStream pgStream, StreamWrapper wrapper) throws IOException {
  byte[] rawData = wrapper.getBytes();
  if (rawData != null)
  {
    pgStream.Send(rawData, wrapper.getOffset(), wrapper.getLength());
    return ;
  }
  pgStream.SendStream(wrapper.getStream(), wrapper.getLength());
}

/**
 * Send a streamable bytea encoded as a text representation with an arbitary encoding.
 */
private void streamBytea(StreamWrapper param, Writer encodingWriter) throws IOException {
  // NB: we escape everything in this path, as I don't like assuming
  // that byte values 32..127 will make it through the encoding
  // unscathed..
  InputStream stream = param.getStream();
  char[] buffer = new char[] { '\\', '\\', 0, 0, 0 };
  if (useEStringSyntax)
  {
    encodingWriter.write(' ');
    encodingWriter.write('E');
  }
  encodingWriter.write('\'');
  for (int remaining = param.getLength(); remaining > 0; --remaining)
  {
    int nextByte = stream.read();
    buffer[2] = (char)( '0' + ((nextByte >> 6) & 3));
    buffer[3] = (char)( '0' + ((nextByte >> 3) & 7));
    buffer[4] = (char)( '0' + (nextByte & 7));
    encodingWriter.write(buffer, 0, 5);
  }
  encodingWriter.write('\'');
}

/**
 * Send a streamable bytea encoded as a text representation with an arbitary encoding.
 */
private void streamBytea(StreamWrapper param, Writer encodingWriter) throws IOException {
  // NB: we escape everything in this path, as I don't like assuming
  // that byte values 32..127 will make it through the encoding
  // unscathed..
  InputStream stream = param.getStream();
  char[] buffer = new char[] { '\\', '\\', 0, 0, 0 };
  if (useEStringSyntax)
  {
    encodingWriter.write(' ');
    encodingWriter.write('E');
  }
  encodingWriter.write('\'');
  for (int remaining = param.getLength(); remaining > 0; --remaining)
  {
    int nextByte = stream.read();
    buffer[2] = (char)( '0' + ((nextByte >> 6) & 3));
    buffer[3] = (char)( '0' + ((nextByte >> 3) & 7));
    buffer[4] = (char)( '0' + (nextByte & 7));
    encodingWriter.write(buffer, 0, 5);
  }
  encodingWriter.write('\'');
}

private void copyStream(PGStream pgStream, StreamWrapper wrapper) throws IOException {
  byte[] rawData = wrapper.getBytes();
  if (rawData != null)
  {
    pgStream.Send(rawData, wrapper.getOffset(), wrapper.getLength());
    return ;
  }
  pgStream.SendStream(wrapper.getStream(), wrapper.getLength());
}

private void copyStream(PGStream pgStream, StreamWrapper wrapper) throws IOException {
  byte[] rawData = wrapper.getBytes();
  if (rawData != null)
  {
    pgStream.Send(rawData, wrapper.getOffset(), wrapper.getLength());
    return ;
  }
  pgStream.SendStream(wrapper.getStream(), wrapper.getLength());
}

private static void streamBytea(PGStream pgStream, StreamWrapper wrapper) throws IOException {
  byte[] rawData = wrapper.getBytes();
  if (rawData != null)
  {
    pgStream.Send(rawData, wrapper.getOffset(), wrapper.getLength());
    return ;
  }
  pgStream.SendStream(wrapper.getStream(), wrapper.getLength());
}

private static void streamBytea(PGStream pgStream, StreamWrapper wrapper) throws IOException {
  byte[] rawData = wrapper.getBytes();
  if (rawData != null)
  {
    pgStream.Send(rawData, wrapper.getOffset(), wrapper.getLength());
    return ;
  }
  pgStream.SendStream(wrapper.getStream(), wrapper.getLength());
}