protected void writeFailureResponse(Throwable exception, ChunkingChannelBuffer buffer) {
try {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
ObjectOutputStream out = new ObjectOutputStream(bytes);
out.writeObject(exception);
out.close();
buffer.writeBytes(bytes.toByteArray());
buffer.done();
} catch (IOException e) {
msgLog.logMessage("Couldn't send cause of error to client", exception);
}
}
@Override
public void messageReceived(ChannelHandlerContext ctx, MessageEvent event) throws Exception {
try {
ChannelBuffer message = (ChannelBuffer) event.getMessage();
handleRequest(message, event.getChannel());
} catch (Throwable e) {
msgLog.error("Error handling request", e);
// Attempt to reply to the client
ChunkingChannelBuffer buffer = newChunkingBuffer(event.getChannel());
buffer.clear(/* failure = */ true);
writeFailureResponse(e, buffer);
ctx.getChannel().close();
tryToFinishOffChannel(ctx.getChannel());
throw Exceptions.launderedException(e);
}
}