@Override
public void sendResponse(Throwable error) throws IOException {
BytesStreamOutput stream;
try {
stream = BytesStreamOutput.Cached.cached();
writeResponseExceptionHeader(stream);
RemoteTransportException tx =
new RemoteTransportException(
transport.nodeName(),
transport.wrapAddress(channel.getLocalAddress()),
action,
error);
ThrowableObjectOutputStream too = new ThrowableObjectOutputStream(stream);
too.writeObject(tx);
too.close();
} catch (NotSerializableException e) {
stream = BytesStreamOutput.Cached.cached();
writeResponseExceptionHeader(stream);
RemoteTransportException tx =
new RemoteTransportException(
transport.nodeName(),
transport.wrapAddress(channel.getLocalAddress()),
action,
new NotSerializableTransportException(error));
ThrowableObjectOutputStream too = new ThrowableObjectOutputStream(stream);
too.writeObject(tx);
too.close();
}
ChannelBuffer buffer = ChannelBuffers.wrappedBuffer(stream.copiedByteArray());
buffer.setInt(0, buffer.writerIndex() - 4); // update real size.
channel.write(buffer);
}
private void writeResponseExceptionHeader(BytesStreamOutput stream) throws IOException {
stream.writeBytes(LENGTH_PLACEHOLDER);
stream.writeLong(requestId);
byte status = 0;
status = setResponse(status);
status = setError(status);
stream.writeByte(status);
}