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.udp; 021 022import java.net.SocketAddress; 023 024import org.apache.mina.core.buffer.IoBuffer; 025import org.apache.mina.core.service.IoHandlerAdapter; 026import org.apache.mina.core.session.IdleStatus; 027import org.apache.mina.core.session.IoSession; 028 029/** 030 * Class the extends IoHandlerAdapter in order to properly handle 031 * connections and the data the connections send 032 * 033 * @author <a href="http://mina.apache.org">Apache MINA Project</a> 034 */ 035public class MemoryMonitorHandler extends IoHandlerAdapter { 036 037 private MemoryMonitor server; 038 039 public MemoryMonitorHandler(MemoryMonitor server) { 040 this.server = server; 041 } 042 043 @Override 044 public void exceptionCaught(IoSession session, Throwable cause) 045 throws Exception { 046 cause.printStackTrace(); 047 session.closeNow(); 048 } 049 050 @Override 051 public void messageReceived(IoSession session, Object message) 052 throws Exception { 053 054 if (message instanceof IoBuffer) { 055 IoBuffer buffer = (IoBuffer) message; 056 SocketAddress remoteAddress = session.getRemoteAddress(); 057 server.recvUpdate(remoteAddress, buffer.getLong()); 058 } 059 } 060 061 @Override 062 public void sessionClosed(IoSession session) throws Exception { 063 System.out.println("Session closed..."); 064 SocketAddress remoteAddress = session.getRemoteAddress(); 065 server.removeClient(remoteAddress); 066 } 067 068 @Override 069 public void sessionCreated(IoSession session) throws Exception { 070 071 System.out.println("Session created..."); 072 073 SocketAddress remoteAddress = session.getRemoteAddress(); 074 server.addClient(remoteAddress); 075 } 076 077 @Override 078 public void sessionIdle(IoSession session, IdleStatus status) 079 throws Exception { 080 System.out.println("Session idle..."); 081 } 082 083 @Override 084 public void sessionOpened(IoSession session) throws Exception { 085 System.out.println("Session Opened..."); 086 } 087}