Java tutorial
/* * ==================================================================== * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF 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. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of the Apache Software Foundation. For more * information on the Apache Software Foundation, please see * <http://www.apache.org/>. * */ package com.simba.demo.airplay.srv; import java.io.IOException; import java.io.InterruptedIOException; import java.net.InetSocketAddress; import java.nio.ByteBuffer; import simba.org.apache.http.impl.nio.reactor.DefaultListeningIOReactor; import simba.org.apache.http.nio.reactor.EventMask; import simba.org.apache.http.nio.reactor.IOEventDispatch; import simba.org.apache.http.nio.reactor.IOSession; import simba.org.apache.http.nio.reactor.ListeningIOReactor; public class ElementalEchoServer { public static void main(String[] args) throws Exception { IOEventDispatch ioEventDispatch = new DefaultIoEventDispatch(); ListeningIOReactor ioReactor = new DefaultListeningIOReactor(); ioReactor.listen(new InetSocketAddress(8080)); try { ioReactor.execute(ioEventDispatch); } catch (InterruptedIOException ex) { System.err.println("Interrupted"); } catch (IOException e) { System.err.println("I/O error: " + e.getMessage()); } System.out.println("Shutdown"); } static class DefaultIoEventDispatch implements IOEventDispatch { private final ByteBuffer buffer = ByteBuffer.allocate(1024); public void connected(IOSession session) { System.out.println("connected"); session.setEventMask(EventMask.READ); session.setSocketTimeout(20000); } public void inputReady(final IOSession session) { System.out.println("readable"); try { this.buffer.compact(); int bytesRead = session.channel().read(this.buffer); if (this.buffer.position() > 0) { session.setEventMask(EventMask.READ_WRITE); } System.out.println("Bytes read: " + bytesRead); if (bytesRead == -1) { session.close(); } } catch (IOException ex) { System.err.println("I/O error: " + ex.getMessage()); } } public void outputReady(final IOSession session) { System.out.println("writeable"); try { this.buffer.flip(); int bytesWritten = session.channel().write(this.buffer); if (!this.buffer.hasRemaining()) { session.setEventMask(EventMask.READ); } System.out.println("Bytes written: " + bytesWritten); } catch (IOException ex) { System.err.println("I/O error: " + ex.getMessage()); } } public void timeout(final IOSession session) { System.out.println("timeout"); session.close(); } public void disconnected(final IOSession session) { System.out.println("disconnected"); } } }