1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, 13 * software distributed under the License is distributed on an 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 15 * KIND, either express or implied. See the License for the 16 * specific language governing permissions and limitations 17 * under the License. 18 * 19 */ 20 package org.apache.mina.example.gettingstarted.timeserver; 21 22 import java.util.Date; 23 24 import org.apache.mina.core.service.IoHandlerAdapter; 25 import org.apache.mina.core.session.IdleStatus; 26 import org.apache.mina.core.session.IoSession; 27 28 /** 29 * The Time Server handler : it return the current date when a message is received, 30 * or close the session if the "quit" message is received. 31 * 32 * @author The Apache MINA Project (dev@mina.apache.org) 33 * @version $Rev$, $Date$ 34 */ 35 public class TimeServerHandler extends IoHandlerAdapter 36 { 37 /** 38 * Trap exceptions. 39 */ 40 @Override 41 public void exceptionCaught( IoSession session, Throwable cause ) throws Exception 42 { 43 cause.printStackTrace(); 44 } 45 46 /** 47 * If the message is 'quit', we exit by closing the session. Otherwise, 48 * we return the current date. 49 */ 50 @Override 51 public void messageReceived( IoSession session, Object message ) throws Exception 52 { 53 String str = message.toString(); 54 55 if( str.trim().equalsIgnoreCase("quit") ) { 56 // "Quit" ? let's get out ... 57 session.close(true); 58 return; 59 } 60 61 // Send the current date back to the client 62 Date date = new Date(); 63 session.write( date.toString() ); 64 System.out.println("Message written..."); 65 } 66 67 /** 68 * On idle, we just write a message on the console 69 */ 70 @Override 71 public void sessionIdle( IoSession session, IdleStatus status ) throws Exception 72 { 73 System.out.println( "IDLE " + session.getIdleCount( status )); 74 } 75 }