001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 * 019 */ 020package org.apache.mina.example.echoserver; 021 022import org.apache.mina.core.buffer.IoBuffer; 023import org.apache.mina.core.service.IoHandler; 024import org.apache.mina.core.service.IoHandlerAdapter; 025import org.apache.mina.core.session.IdleStatus; 026import org.apache.mina.core.session.IoSession; 027import org.apache.mina.filter.ssl.SslFilter; 028import org.slf4j.Logger; 029import org.slf4j.LoggerFactory; 030 031/** 032 * {@link IoHandler} implementation for echo server. 033 * 034 * @author <a href="http://mina.apache.org">Apache MINA Project</a> 035 */ 036public class EchoProtocolHandler extends IoHandlerAdapter { 037 private final static Logger LOGGER = LoggerFactory.getLogger(EchoProtocolHandler.class); 038 039 @Override 040 public void sessionCreated(IoSession session) { 041 session.getConfig().setIdleTime(IdleStatus.BOTH_IDLE, 10); 042 043 // We're going to use SSL negotiation notification. 044 session.setAttribute(SslFilter.USE_NOTIFICATION); 045 } 046 047 @Override 048 public void sessionClosed(IoSession session) throws Exception { 049 LOGGER.info("CLOSED"); 050 } 051 052 @Override 053 public void sessionOpened(IoSession session) throws Exception { 054 LOGGER.info("OPENED"); 055 } 056 057 @Override 058 public void sessionIdle(IoSession session, IdleStatus status) { 059 LOGGER.info("*** IDLE #" + session.getIdleCount(IdleStatus.BOTH_IDLE) + " ***"); 060 } 061 062 @Override 063 public void exceptionCaught(IoSession session, Throwable cause) { 064 session.closeNow(); 065 } 066 067 @Override 068 public void messageReceived(IoSession session, Object message) 069 throws Exception { 070 LOGGER.info( "Received : " + message ); 071 // Write the received data back to remote peer 072 session.write(((IoBuffer) message).duplicate()); 073 } 074}