Netty tcp bridge Patch#
Netty tcp bridge code#

Netty tcp bridge Patch#

The PATCH version guarantees the client knows the current state and is trying a valid transition.The PUT version is idempotent, so your clients can choose to use it when they need idempotence.The idea is that the implementations can be generic enough that you don't have to worry too much about coupling the resource to the HTTP methods. Or you may do something like: PATCH /apple

You transition between states by using the standardized behavior of the methods. For instance, you may change an object's attributes straightforwardly from the method's payload, and then have a method that's called to detect what transition is needed.ДЇor instance, you may think of an apple as having three states, whole, pared, sliced and juiced. That way you focus the implementation on the resource itself, not on the interaction with the protocol. Now, on the backend side, try to think of REST resources more like a state machine where you can use the methods to force a transition rather than an object with methods. PATCH is for partial idempotent updates, with a diff between the current and the desired state.PUT is used to completely replace the resource at the present URI, and subjects the payload to the service itself.POST is the method used for any operation that isn't standardized by HTTP, and subjects the payload to the target URI.HTTP methods don't translate to CRUD operations cleanly like that. I believe that's the main source of confusion in REST. See for instance Shutdown netty programmaticallyДЇirst of all, try to avoid conflating HTTP methods to CRUD operations. then finish your main by waiting on closeFuture, such that, once in your business logic you get the order to shutdown, you close the main channel, and therefore your main thread is closing too.add in the pipeline the necessary handlers to handle your business logic (and the network protocol of course).

Netty tcp bridge code#

So you might find this code in various example because generally you start the server (bind) in the main thread or so, and then if you don't wait for something, the main thread will end up, giving your JVM finishing, and therefore your server to stop immediately after starting. channel() gives you back the very same channel than first time, except it is now closed. The second part is to wait for the main channel (listening socket) to shutdown ( closeFuture().sync()) where closeFuture gives you the 'future' on 'close' operation (meaning shutdown of the server socket), and sync waiting for this future to be done. serverBootstrap.bind(tcpPort).sync().channel() : Invalid frame type unregisterДЄt io.(TcpEventBusBridgeImpl.java:408)ДЄt io.$handler$8(TcpEventBusBridgeImpl.java:252)ДЄt io.handle(FrameParser.java:67)ДЄt io.handle(FrameParser.java:30)ДЄt io.NetSocketImpl$DataMessageHandler.handle(NetSocketImpl.java:384)ДЄt io.NetSocketImpl.handleMessageReceived(NetSocketImpl.java:351)ДЄt io.NetServerImpl$2.handleMessage(NetServerImpl.java:446)ДЄt io.NetServerImpl$2.handleMessage(NetServerImpl.java:443)ДЄt io.VertxHandler.lambda$channelRead$1(VertxHandler.java:146)ДЄt io.lambda$wrapTask$2(ContextImpl.java:337)ДЄt io.executeFromIO(ContextImpl.java:195)ДЄt io.VertxHandler.channelRead(VertxHandler.java:144)ДЄt io.(AbstractChannelHandlerContext.java:362)ДЄt io.(AbstractChannelHandlerContext.java:348)ДЄt io.(AbstractChannelHandlerContext.java:340)ДЄt io.$HeadContext.channelRead(DefaultChannelPipeline.java:1359)ДЄt io.(DefaultChannelPipeline.java:935)ДЄt io.$NioByteUnsafe.read(AbstractNioByteChannel.java:141)ДЄt io.processSelectedKey(NioEventLoop.java:645)ДЄt io.processSelectedKeysOptimized(NioEventLoop.java:580)ДЄt io.processSelectedKeys(NioEventLoop.java:497)ДЄt io.run(NioEventLoop.java:459)ДЄt io.$5.run(SingleThreadEventExecutor.java:886)ДЄt io.run(FastThreadLocalRunnable.2) wait for the server to be ready (socket is listening)ДЈ) and return the associated channel. So it's not possible to unregister consumer. Unregister is implemented with io.#doSendOrPub method, but missing on io.#parseType.