View Javadoc

    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.udp;
    21
    22  import java.net.SocketAddress;
    23
    24  import org.apache.mina.core.buffer.IoBuffer;
    25  import org.apache.mina.core.service.IoHandlerAdapter;
    26  import org.apache.mina.core.session.IdleStatus;
    27  import org.apache.mina.core.session.IoSession;
    28
    29  /**
    30   * Class the extends IoHandlerAdapter in order to properly handle
    31   * connections and the data the connections send
    32   *
    33   * @author <a href="http://mina.apache.org">Apache MINA Project</a>
    34   */
    35  public class MemoryMonitorHandler extends IoHandlerAdapter {
    36
    37      private MemoryMonitor server;
    38
    39      public MemoryMonitorHandler(MemoryMonitor server) {
    40          this.server = server;
    41      }
    42
    43      @Override
    44      public void exceptionCaught(IoSession session, Throwable cause)
    45              throws Exception {
    46          cause.printStackTrace();
    47          session.close(true);
    48      }
    49
    50      @Override
    51      public void messageReceived(IoSession session, Object message)
    52              throws Exception {
    53
    54          if (message instanceof IoBuffer) {
    55              IoBuffer buffer = (IoBuffer) message;
    56              SocketAddress remoteAddress = session.getRemoteAddress();
    57              server.recvUpdate(remoteAddress, buffer.getLong());
    58          }
    59      }
    60
    61      @Override
    62      public void sessionClosed(IoSession session) throws Exception {
    63          System.out.println("Session closed...");
    64          SocketAddress remoteAddress = session.getRemoteAddress();
    65          server.removeClient(remoteAddress);
    66      }
    67
    68      @Override
    69      public void sessionCreated(IoSession session) throws Exception {
    70
    71          System.out.println("Session created...");
    72
    73          SocketAddress remoteAddress = session.getRemoteAddress();
    74          server.addClient(remoteAddress);
    75      }
    76
    77      @Override
    78      public void sessionIdle(IoSession session, IdleStatus status)
    79              throws Exception {
    80          System.out.println("Session idle...");
    81      }
    82
    83      @Override
    84      public void sessionOpened(IoSession session) throws Exception {
    85          System.out.println("Session Opened...");
    86      }
    87  }