clienttoproxyiohandler.java

MINA自带的一些小例子

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 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
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 *    http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.mina.example.proxy;

import java.net.InetSocketAddress;

import org.apache.mina.common.ConnectFuture;
import org.apache.mina.common.IoConnector;
import org.apache.mina.common.IoFuture;
import org.apache.mina.common.IoFutureListener;
import org.apache.mina.common.IoSession;
import org.apache.mina.common.RuntimeIOException;
import org.apache.mina.common.TrafficMask;

/**
 * Handles the client to proxy part of the proxied connection.
 *
 * @author The Apache Directory Project ([e-mail])
 * @version $Rev$, $Date$
 *
 */
public class ClientToProxyIoHandler extends AbstractProxyIoHandler {
    private final ServerToProxyIoHandler connectorHandler;

    private final IoConnector connector;

    private final InetSocketAddress address;

    public ClientToProxyIoHandler(ServerToProxyIoHandler connectorHandler,
            IoConnector connector, InetSocketAddress address) {
        this.connectorHandler = connectorHandler;
        this.connector = connector;
        this.address = address;
    }

    public void sessionOpened(final IoSession session) throws Exception {
        connector.connect(address, connectorHandler).addListener(
                new IoFutureListener() {
                    public void operationComplete(IoFuture f) {
                        ConnectFuture future = (ConnectFuture) f;
                        try {
                            future.getSession().setAttachment(session);
                            session.setAttachment(future.getSession());
                            future.getSession().setTrafficMask(TrafficMask.ALL);
                        } catch (RuntimeIOException e) {
                            // Connect failed
                            session.close();
                        } finally {
                            session.setTrafficMask(TrafficMask.ALL);
                        }
                    }
                });
    }
}