125 lines
4.9 KiB
Java
125 lines
4.9 KiB
Java
/*
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* Copyright 2012 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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//The MIT License
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//
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//Copyright (c) 2009 Carl Bystršm
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//
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//Permission is hereby granted, free of charge, to any person obtaining a copy
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//of this software and associated documentation files (the "Software"), to deal
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//in the Software without restriction, including without limitation the rights
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//to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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//copies of the Software, and to permit persons to whom the Software is
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//furnished to do so, subject to the following conditions:
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//
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//The above copyright notice and this permission notice shall be included in
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//all copies or substantial portions of the Software.
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//
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//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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//IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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//FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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//AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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//LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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//OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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//THE SOFTWARE.
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package io.netty.example.http.websocketx.client;
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import io.netty.channel.Channel;
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import io.netty.channel.ChannelFuture;
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import io.netty.channel.ChannelHandlerContext;
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import io.netty.channel.ChannelPromise;
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import io.netty.channel.SimpleChannelInboundHandler;
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import io.netty.handler.codec.http.FullHttpResponse;
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import io.netty.handler.codec.http.websocketx.CloseWebSocketFrame;
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import io.netty.handler.codec.http.websocketx.PongWebSocketFrame;
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import io.netty.handler.codec.http.websocketx.TextWebSocketFrame;
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import io.netty.handler.codec.http.websocketx.WebSocketClientHandshaker;
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import io.netty.handler.codec.http.websocketx.WebSocketFrame;
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import io.netty.handler.codec.http.websocketx.WebSocketHandshakeException;
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import io.netty.util.CharsetUtil;
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public class WebSocketClientHandler extends SimpleChannelInboundHandler<Object> {
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private final WebSocketClientHandshaker handshaker;
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private ChannelPromise handshakeFuture;
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public WebSocketClientHandler(WebSocketClientHandshaker handshaker) {
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this.handshaker = handshaker;
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}
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public ChannelFuture handshakeFuture() {
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return handshakeFuture;
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}
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@Override
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public void handlerAdded(ChannelHandlerContext ctx) {
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handshakeFuture = ctx.newPromise();
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}
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@Override
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public void channelActive(ChannelHandlerContext ctx) {
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handshaker.handshake(ctx.channel());
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}
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@Override
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public void channelInactive(ChannelHandlerContext ctx) {
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System.out.println("WebSocket Client disconnected!");
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}
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@Override
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public void messageReceived(ChannelHandlerContext ctx, Object msg) throws Exception {
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Channel ch = ctx.channel();
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if (!handshaker.isHandshakeComplete()) {
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try {
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handshaker.finishHandshake(ch, (FullHttpResponse) msg);
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System.out.println("WebSocket Client connected!");
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handshakeFuture.setSuccess();
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} catch (WebSocketHandshakeException e) {
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System.out.println("WebSocket Client failed to connect");
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handshakeFuture.setFailure(e);
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}
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return;
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}
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if (msg instanceof FullHttpResponse) {
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FullHttpResponse response = (FullHttpResponse) msg;
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throw new IllegalStateException(
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"Unexpected FullHttpResponse (getStatus=" + response.status() +
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", content=" + response.content().toString(CharsetUtil.UTF_8) + ')');
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}
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WebSocketFrame frame = (WebSocketFrame) msg;
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if (frame instanceof TextWebSocketFrame) {
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TextWebSocketFrame textFrame = (TextWebSocketFrame) frame;
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System.out.println("WebSocket Client received message: " + textFrame.text());
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} else if (frame instanceof PongWebSocketFrame) {
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System.out.println("WebSocket Client received pong");
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} else if (frame instanceof CloseWebSocketFrame) {
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System.out.println("WebSocket Client received closing");
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ch.close();
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}
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}
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@Override
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public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
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cause.printStackTrace();
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if (!handshakeFuture.isDone()) {
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handshakeFuture.setFailure(cause);
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}
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ctx.close();
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}
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}
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