@Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) throws Exception {
HttpServerChannelHandler handler = (HttpServerChannelHandler) ctx.getAttachment();
if (handler != null) {
handler.exceptionCaught(ctx, e);
} else {
throw new IllegalStateException(
"HttpServerChannelHandler not found as attachment. Cannot handle caught exception.",
e.getCause());
}
}
@Override
public void messageReceived(ChannelHandlerContext ctx, MessageEvent messageEvent)
throws Exception {
// store request, as this channel handler is created per pipeline
HttpRequest request = (HttpRequest) messageEvent.getMessage();
LOG.debug("Message received: {}", request);
HttpServerChannelHandler handler = getHandler(request);
if (handler != null) {
// store handler as attachment
ctx.setAttachment(handler);
handler.messageReceived(ctx, messageEvent);
} else {
// this service is not available, so send empty response back
HttpResponse response = new DefaultHttpResponse(HTTP_1_1, SERVICE_UNAVAILABLE);
response.setHeader(Exchange.CONTENT_TYPE, "text/plain");
response.setHeader(Exchange.CONTENT_LENGTH, 0);
response.setContent(ChannelBuffers.copiedBuffer(new byte[] {}));
messageEvent.getChannel().write(response);
}
}