Java tutorial
/* * Copyright 2014 The Netty Project * * The Netty Project licenses this file to you under the Apache License, * version 2.0 (the "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. */ package com.look.netty.demo.spdy.client; import io.netty.channel.ChannelFuture; import io.netty.channel.ChannelHandlerContext; import io.netty.channel.SimpleChannelInboundHandler; import io.netty.handler.codec.http.*; import io.netty.util.CharsetUtil; import java.util.concurrent.BlockingQueue; import java.util.concurrent.LinkedBlockingQueue; /** * This is a modified version of {@link HttpSnoopClientHandler} that uses a {@link java.util.concurrent.BlockingQueue} to wait until an * HTTPResponse is received. */ public class HttpResponseClientHandler extends SimpleChannelInboundHandler<HttpObject> { private final BlockingQueue<ChannelFuture> queue = new LinkedBlockingQueue<ChannelFuture>(); @Override public void channelRead0(ChannelHandlerContext ctx, HttpObject msg) throws Exception { if (msg instanceof HttpResponse) { HttpResponse response = (HttpResponse) msg; System.out.println("STATUS: " + response.status()); System.out.println("VERSION: " + response.protocolVersion()); System.out.println(); if (!response.headers().isEmpty()) { for (CharSequence name : response.headers().names()) { for (CharSequence value : response.headers().getAll(name)) { System.out.println("HEADER: " + name + " = " + value); } } System.out.println(); } if (HttpUtil.isTransferEncodingChunked(response)) { System.out.println("CHUNKED CONTENT {"); } else { System.out.println("CONTENT {"); } } if (msg instanceof HttpContent) { HttpContent content = (HttpContent) msg; System.out.print(content.content().toString(CharsetUtil.UTF_8)); System.out.flush(); if (content instanceof LastHttpContent) { System.out.println("} END OF CONTENT"); queue.add(ctx.channel().newSucceededFuture()); } } } @Override public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) { queue.add(ctx.channel().newFailedFuture(cause)); cause.printStackTrace(); ctx.close(); } public BlockingQueue<ChannelFuture> queue() { return queue; } }