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.proxy.session;
021
022import org.apache.mina.core.future.ConnectFuture;
023import org.apache.mina.core.session.IoSession;
024import org.apache.mina.core.session.IoSessionInitializer;
025
026/**
027 * ProxyIoSessionInitializer.java - {@link IoSessionInitializer} wrapper class to inject the 
028 * {@link ProxyIoSession} object that contains all the attributes of the target connection 
029 * into the {@link IoSession}.
030 *
031 * @author <a href="http://mina.apache.org">Apache MINA Project</a>
032 * @since MINA 2.0.0-M3
033 */
034public class ProxyIoSessionInitializer<T extends ConnectFuture> implements IoSessionInitializer<T> {
035    private final IoSessionInitializer<T> wrappedSessionInitializer;
036
037    private final ProxyIoSession proxyIoSession;
038
039    public ProxyIoSessionInitializer(final IoSessionInitializer<T> wrappedSessionInitializer,
040            final ProxyIoSession proxyIoSession) {
041        this.wrappedSessionInitializer = wrappedSessionInitializer;
042        this.proxyIoSession = proxyIoSession;
043    }
044
045    public ProxyIoSession getProxySession() {
046        return proxyIoSession;
047    }
048
049    public void initializeSession(final IoSession session, T future) {
050        if (wrappedSessionInitializer != null) {
051            wrappedSessionInitializer.initializeSession(session, future);
052        }
053
054        if (proxyIoSession != null) {
055            proxyIoSession.setSession(session);
056            session.setAttribute(ProxyIoSession.PROXY_SESSION, proxyIoSession);
057        }
058    }
059}