| /* |
| * ==================================================================== |
| * 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 org.apache.http.examples.nio; |
| |
| import java.io.IOException; |
| import java.io.InterruptedIOException; |
| import java.net.InetSocketAddress; |
| import java.nio.ByteBuffer; |
| |
| import org.apache.http.impl.nio.reactor.DefaultListeningIOReactor; |
| import org.apache.http.nio.reactor.EventMask; |
| import org.apache.http.nio.reactor.IOEventDispatch; |
| import org.apache.http.nio.reactor.IOSession; |
| import 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"); |
| } |
| } |
| |
| } |