How to use

SockJsHandler

in

org.jboss.aerogear.io.netty.handler.codec.sockjs.handler

@Override
public void messageReceived(final ChannelHandlerContext ctx, final FullHttpRequest request) throws Exception {
  final String path = new QueryStringDecoder(request.getUri()).path();
  for (SockJsServiceFactory factory : factories.values()) {
    if (path.startsWith(factory.config().prefix())) {
      handleService(factory, request, ctx);
      return;
    }
  }
  writeNotFoundResponse(request, ctx);
}

private static void writeNotFoundResponse(final HttpRequest request, final ChannelHandlerContext ctx) {
  final FullHttpResponse response = new DefaultFullHttpResponse(request.getProtocolVersion(), NOT_FOUND,
      Unpooled.copiedBuffer("Not found", CharsetUtil.UTF_8));
  writeResponse(ctx.channel(), request, response);
}

private static void handleService(final SockJsServiceFactory factory,
                 final FullHttpRequest request,
                 final ChannelHandlerContext ctx) throws Exception {
  if (logger.isDebugEnabled()) {
    logger.debug("RequestUri : [{}]", request.getUri());
  }
  final String pathWithoutPrefix = request.getUri().replaceFirst(factory.config().prefix(), "");
  final String path = new QueryStringDecoder(pathWithoutPrefix).path();
  if (Greeting.matches(path)) {
    writeResponse(ctx.channel(), request, Greeting.response(request));
  } else if (Info.matches(path)) {
    writeResponse(ctx.channel(), request, Info.response(factory.config(), request));
  } else if (Iframe.matches(path)) {
    writeResponse(ctx.channel(), request, Iframe.response(factory.config(), request));
  } else if (Transports.Type.WEBSOCKET.path().equals(path)) {
    addTransportHandler(new RawWebSocketTransport(factory.config(), factory.create()), ctx);
    ctx.fireChannelRead(request.retain());
  } else {
    final PathParams sessionPath = matches(path);
    if (sessionPath.matches()) {
      handleSession(factory, request, ctx, sessionPath);
    } else {
      writeNotFoundResponse(request, ctx);
    }
  }
}

switch (pathParams.transport()) {
case XHR:
  addTransportHandler(new XhrPollingTransport(factory.config(), request), ctx);
  addSessionHandler(new PollingSessionState(sessions, getSession(factory, pathParams.sessionId())), ctx);
  break;
case JSONP:
  addTransportHandler(new JsonpPollingTransport(factory.config(), request), ctx);
  addSessionHandler(new PollingSessionState(sessions, getSession(factory, pathParams.sessionId())), ctx);
  break;
case XHR_SEND:
  checkSessionExists(pathParams.sessionId(), request);
  addTransportHandler(new XhrSendTransport(factory.config()), ctx);
  addSessionHandler(new SendingSessionState(sessions, sessions.get(pathParams.sessionId())), ctx);
  break;
case XHR_STREAMING:
  addTransportHandler(new XhrStreamingTransport(factory.config(), request), ctx);
  addSessionHandler(new StreamingSessionState(sessions, getSession(factory, pathParams.sessionId())), ctx);
  break;
case EVENTSOURCE:
  addTransportHandler(new EventSourceTransport(factory.config(), request), ctx);
  addSessionHandler(new StreamingSessionState(sessions, getSession(factory, pathParams.sessionId())), ctx);
  break;
case HTMLFILE:
  addTransportHandler(new HtmlFileTransport(factory.config(), request), ctx);
  addSessionHandler(new StreamingSessionState(sessions, getSession(factory, pathParams.sessionId())), ctx);
  break;
case JSONP_SEND:
  checkSessionExists(pathParams.sessionId(), request);
  addTransportHandler(new JsonpSendTransport(factory.config()), ctx);

@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
  if (cause instanceof SessionNotFoundException) {
    final SessionNotFoundException se = (SessionNotFoundException) cause;
    logger.debug("Could not find session [{}]", se.sessionId());
    writeNotFoundResponse(se.httpRequest(), ctx);
  } else {
    logger.error("exception caught:", cause);
    ctx.fireExceptionCaught(cause);
  }
}

@Override
protected void initChannel(final SocketChannel socketChannel) throws Exception {
  final ChannelPipeline pipeline = socketChannel.pipeline();
  if (sockjsConfig.isTls()) {
    final SSLEngine engine = sslContext.createSSLEngine();
    engine.setUseClientMode(false);
    pipeline.addLast(new SslHandler(engine));
  }
  pipeline.addLast(new HttpServerCodec());
  pipeline.addLast(new HttpObjectAggregator(65536));
  final DefaultSimplePushServer simplePushServer = new DefaultSimplePushServer(datastore, simplePushConfig, privateKey);
  pipeline.addLast(new NotificationHandler(simplePushServer));
  pipeline.addLast(new CorsInboundHandler());
  pipeline.addLast(new SockJsHandler(new SimplePushServiceFactory(sockjsConfig, simplePushServer)));
  pipeline.addLast(backgroundGroup, new UserAgentReaperHandler(simplePushServer));
  pipeline.addLast(new CorsOutboundHandler());
}

private static void handleService(final SockJsServiceFactory factory,
                 final FullHttpRequest request,
                 final ChannelHandlerContext ctx) throws Exception {
  if (logger.isDebugEnabled()) {
    logger.debug("RequestUri : [{}]", request.getUri());
  }
  final String pathWithoutPrefix = request.getUri().replaceFirst(factory.config().prefix(), "");
  final String path = new QueryStringDecoder(pathWithoutPrefix).path();
  if (Greeting.matches(path)) {
    writeResponse(ctx.channel(), request, Greeting.response(request));
  } else if (Info.matches(path)) {
    writeResponse(ctx.channel(), request, Info.response(factory.config(), request));
  } else if (Iframe.matches(path)) {
    writeResponse(ctx.channel(), request, Iframe.response(factory.config(), request));
  } else if (Transports.Type.WEBSOCKET.path().equals(path)) {
    addTransportHandler(new RawWebSocketTransport(factory.config(), factory.create()), ctx);
    ctx.fireChannelRead(request.retain());
  } else {
    final PathParams sessionPath = matches(path);
    if (sessionPath.matches()) {
      handleSession(factory, request, ctx, sessionPath);
    } else {
      writeNotFoundResponse(request, ctx);
    }
  }
}

switch (pathParams.transport()) {
case XHR:
  addTransportHandler(new XhrPollingTransport(factory.config(), request), ctx);
  addSessionHandler(new PollingSessionState(sessions, getSession(factory, pathParams.sessionId())), ctx);
  break;
case JSONP:
  addTransportHandler(new JsonpPollingTransport(factory.config(), request), ctx);
  addSessionHandler(new PollingSessionState(sessions, getSession(factory, pathParams.sessionId())), ctx);
  break;
case XHR_SEND:
  checkSessionExists(pathParams.sessionId(), request);
  addTransportHandler(new XhrSendTransport(factory.config()), ctx);
  addSessionHandler(new SendingSessionState(sessions, sessions.get(pathParams.sessionId())), ctx);
  break;
case XHR_STREAMING:
  addTransportHandler(new XhrStreamingTransport(factory.config(), request), ctx);
  addSessionHandler(new StreamingSessionState(sessions, getSession(factory, pathParams.sessionId())), ctx);
  break;
case EVENTSOURCE:
  addTransportHandler(new EventSourceTransport(factory.config(), request), ctx);
  addSessionHandler(new StreamingSessionState(sessions, getSession(factory, pathParams.sessionId())), ctx);
  break;
case HTMLFILE:
  addTransportHandler(new HtmlFileTransport(factory.config(), request), ctx);
  addSessionHandler(new StreamingSessionState(sessions, getSession(factory, pathParams.sessionId())), ctx);
  break;
case JSONP_SEND:
  checkSessionExists(pathParams.sessionId(), request);
  addTransportHandler(new JsonpSendTransport(factory.config()), ctx);

@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
  if (cause instanceof SessionNotFoundException) {
    final SessionNotFoundException se = (SessionNotFoundException) cause;
    logger.debug("Could not find session [{}]", se.sessionId());
    writeNotFoundResponse(se.httpRequest(), ctx);
  } else {
    logger.error("exception caught:", cause);
    ctx.fireExceptionCaught(cause);
  }
}

@Override
protected void initChannel(final SocketChannel socketChannel) throws Exception {
  final ChannelPipeline pipeline = socketChannel.pipeline();
  if (sockjsConfig.isTls()) {
    final SSLEngine engine = sslContext.createSSLEngine();
    engine.setUseClientMode(false);
    pipeline.addLast(new SslHandler(engine));
  }
  pipeline.addLast(new HttpServerCodec());
  pipeline.addLast(new HttpObjectAggregator(65536));
  final DefaultSimplePushServer simplePushServer = new DefaultSimplePushServer(datastore, simplePushConfig, privateKey);
  pipeline.addLast(new NotificationHandler(simplePushServer));
  pipeline.addLast(new CorsInboundHandler());
  pipeline.addLast(new SockJsHandler(new SimplePushServiceFactory(sockjsConfig, simplePushServer)));
  pipeline.addLast(backgroundGroup, new UserAgentReaperHandler(simplePushServer));
  pipeline.addLast(new CorsOutboundHandler());
}

@Override
public void messageReceived(final ChannelHandlerContext ctx, final FullHttpRequest request) throws Exception {
  final String path = new QueryStringDecoder(request.getUri()).path();
  for (SockJsServiceFactory factory : factories.values()) {
    if (path.startsWith(factory.config().prefix())) {
      handleService(factory, request, ctx);
      return;
    }
  }
  writeNotFoundResponse(request, ctx);
}

private static void writeNotFoundResponse(final HttpRequest request, final ChannelHandlerContext ctx) {
  final FullHttpResponse response = new DefaultFullHttpResponse(request.getProtocolVersion(), NOT_FOUND,
      Unpooled.copiedBuffer("Not found", CharsetUtil.UTF_8));
  writeResponse(ctx.channel(), request, response);
}