private void fireException(Throwable cause) {
// Only fire the exception if the channel is open and registered
// if not the pipeline is not setup and so it would hit the tail
// of the pipeline.
// See https://github.com/netty/netty/issues/1517
if (fireException && channel.isRegistered()) {
channel.pipeline().fireExceptionCaught(cause);
}
}
@Override
protected void initChannel(Channel channel) throws Exception {
ChannelPipeline pipeline = channel.pipeline();
int maxChunkSize = conf.getIntVar(TajoConf.ConfVars.SHUFFLE_FETCHER_CHUNK_MAX_SIZE);
int readTimeout = conf.getIntVar(TajoConf.ConfVars.SHUFFLE_FETCHER_READ_TIMEOUT);
pipeline.addLast("codec", new HttpClientCodec(4096, 8192, maxChunkSize));
pipeline.addLast("inflater", new HttpContentDecompressor());
pipeline.addLast("timeout", new ReadTimeoutHandler(readTimeout, TimeUnit.SECONDS));
pipeline.addLast("handler", new HttpClientHandler(file));
}
/**
* Reconnect to the remote address that the closed channel was connected to. This creates a new
* {@link ChannelPipeline} with the same handler instances contained in the old channel's
* pipeline.
*
* @param timeout Timer task handle.
* @throws Exception when reconnection fails.
*/
@Override
public void run(Timeout timeout) throws Exception {
ChannelPipeline old = channel.pipeline();
final CommandHandler<?, ?> handler = old.get(CommandHandler.class);
final RedisAsyncConnection<?, ?> connection = old.get(RedisAsyncConnection.class);
ChannelFuture connect = null;
// TODO use better concurrent workaround
synchronized (bootstrap) {
connect =
bootstrap
.handler(
new ChannelInitializer<Channel>() {
@Override
protected void initChannel(Channel ch) throws Exception {
ch.pipeline().addLast(this, handler, connection);
}
})
.connect();
}
connect.sync();
}
protected void createSession(
Long sessionId,
Channel channel,
SmppSessionConfiguration config,
BaseBindResp preparedBindResponse)
throws SmppProcessingException {
// NOTE: exactly one PDU (bind request) was read from the channel, we
// now need to delegate permitting this bind request by calling a method
// further upstream. Only after the server-side is completely ready to
// start processing requests from this session, do we want to actually
// return the bind response and start reading further requests -- we'll
// initially block reading from the channel first -- this will be turned
// back on via the "serverReady()" method call on the session object
// make sure the channel is not being read/processed (until we flag we're ready later on)
channel.config().setAutoRead(false);
// auto negotiate the interface version in use based on the requested interface version
byte interfaceVersion = this.autoNegotiateInterfaceVersion(config.getInterfaceVersion());
// create a new server session associated with this server
DefaultSmppSession session =
new DefaultSmppSession(
SmppSession.Type.SERVER,
config,
channel,
this,
sessionId,
preparedBindResponse,
interfaceVersion,
monitorExecutor);
// replace name of thread used for renaming
SmppSessionThreadRenamer threadRenamer =
(SmppSessionThreadRenamer)
channel.pipeline().get(SmppChannelConstants.PIPELINE_SESSION_THREAD_RENAMER_NAME);
threadRenamer.setThreadName(config.getName());
// add a logging handler after the thread renamer
SmppSessionLogger loggingHandler =
new SmppSessionLogger(
DefaultSmppSession.class.getCanonicalName(), config.getLoggingOptions());
channel
.pipeline()
.addAfter(
SmppChannelConstants.PIPELINE_SESSION_THREAD_RENAMER_NAME,
SmppChannelConstants.PIPELINE_SESSION_LOGGER_NAME,
loggingHandler);
// decoder in pipeline is ok (keep it)
// create a new wrapper around a session to pass the pdu up the chain
channel.pipeline().remove(SmppChannelConstants.PIPELINE_SESSION_WRAPPER_NAME);
channel
.pipeline()
.addLast(
SmppChannelConstants.PIPELINE_SESSION_WRAPPER_NAME, new SmppSessionWrapper(session));
// check if the # of channels exceeds maxConnections
if (this.channels.size() > this.configuration.getMaxConnectionSize()) {
logger.warn(
"The current connection size [{}] exceeds the configured max connection size [{}]",
this.channels.size(),
this.configuration.getMaxConnectionSize());
}
// session created, now pass it upstream
counters.incrementSessionCreatedAndGet();
incrementSessionSizeCounters(session);
this.serverHandler.sessionCreated(sessionId, session, preparedBindResponse);
// register this session as an mbean
if (configuration.isJmxEnabled()) {
session.registerMBean(
configuration.getJmxDomain()
+ ":type="
+ configuration.getName()
+ "Sessions,name="
+ sessionId);
}
}
@Override
protected void initChannel(Channel ch) throws Exception {
ChannelPipeline pipeline = ch.pipeline();
pipeline.addLast(new HttpClientCodec());
pipeline.addLast(new HttpObjectAggregator(Integer.MAX_VALUE));
}
@Override
protected void initChannel(Channel ch) throws Exception {
ChannelPipeline pipeline = ch.pipeline();
pipeline.addLast(new LineBasedFrameDecoder(65 * 1024));
pipeline.addLast(new FrameHandler());
}
public static ChannelFuture handshake(
final ChannelHandlerContext ctx,
final HttpRequest request,
final String websocketPath,
final ChannelHandler handler) {
final String connHead = request.getHttpHeaders().getHeaderString(HttpHeaders.Names.CONNECTION);
final String upHead = request.getHttpHeaders().getHeaderString(HttpHeaders.Names.UPGRADE);
final String sockHead =
request.getHttpHeaders().getHeaderString(HttpHeaders.Names.SEC_WEBSOCKET_VERSION);
final String keyHead =
request.getHttpHeaders().getHeaderString(HttpHeaders.Names.SEC_WEBSOCKET_KEY);
try {
DefaultHttpRequest req =
new DefaultHttpRequest(
HttpVersion.HTTP_1_0, HttpMethod.GET, request.getUri().getAbsolutePath().toString());
req.setHeader(HttpHeaders.Names.SEC_WEBSOCKET_VERSION, sockHead);
req.setHeader(HttpHeaders.Names.SEC_WEBSOCKET_KEY, keyHead);
final Channel channel = ctx.channel();
final String location = getWebSocketLocation(channel.pipeline(), request, websocketPath);
final WebSocketServerHandshakerFactory wsFactory =
new WebSocketServerHandshakerFactory(location, null, false);
final WebSocketServerHandshaker handshaker = wsFactory.newHandshaker(req);
if (handshaker == null) {
WebSocketServerHandshakerFactory.sendUnsupportedWebSocketVersionResponse(channel);
return null;
} else if (!connHead.toLowerCase().contains(HttpHeaders.Values.UPGRADE.toLowerCase())
|| !upHead.toLowerCase().contains(HttpHeaders.Values.WEBSOCKET.toLowerCase())) {
// Not a valid socket open request
logger.info("Invalid request: " + request.getUri());
return null;
} else {
// We need to remove the RESTEasy stuff otherwise the Netty logic to write the handshake to
// the channel
// will never make it back to the client
channel.pipeline().remove("resteasyEncoder");
channel.pipeline().remove("resteasyDecoder");
final ChannelFuture handshakeFuture = handshaker.handshake(channel, req);
handshakeFuture.addListener(
new ChannelFutureListener() {
@Override
public void operationComplete(ChannelFuture future) throws Exception {
if (!future.isSuccess()) {
ctx.fireExceptionCaught(future.cause());
} else {
final ChannelPipeline pipeline = future.channel().pipeline();
pipeline.replace(pipeline.last(), "customSocketHandler", handler);
pipeline.addBefore(
"customSocketHandler", "socketHandler", new WebSocketProtocolHandler());
}
}
});
WebSocketProtocolHandler.setHandshaker(ctx, handshaker);
return handshakeFuture;
// channel.pipeline().addBefore("timeout", "WS403Responder",
// WebSocketProtocolHandler.forbiddenHttpRequestResponder());
}
} catch (Exception e) {
logger.error("Error trying to upgrade the channel to a socket", e);
}
return null;
}
