PacketDelivererImpl.java 1.82 KB
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/**
 * $RCSfile$
 * $Revision$
 * $Date$
 *
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 * Copyright (C) 2004 Jive Software. All rights reserved.
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 *
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 * This software is published under the terms of the GNU Public License (GPL),
 * a copy of which is included in this distribution.
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 */
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package org.jivesoftware.messenger.spi;

import org.jivesoftware.messenger.container.BasicModule;
import org.jivesoftware.messenger.*;
import org.jivesoftware.messenger.auth.UnauthorizedException;
import org.jivesoftware.messenger.net.SocketPacketWriteHandler;
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import org.xmpp.packet.Packet;

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/**
 * In-memory implementation of the packet deliverer service
 *
 * @author Iain Shigeoka
 */
public class PacketDelivererImpl extends BasicModule implements PacketDeliverer {

    /**
     * The handler that does the actual delivery (could be a channel instead)
     */
    protected ChannelHandler deliverHandler;

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    private OfflineMessageStrategy messageStrategy;
    private SessionManager sessionManager;
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    public PacketDelivererImpl() {
        super("Packet Delivery");
    }

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    public void deliver(Packet packet) throws UnauthorizedException, PacketException {
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        if (packet == null) {
            throw new PacketException("Packet was null");
        }
        if (deliverHandler == null) {
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            throw new PacketException("Could not send packet - no route" + packet.toString());
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        }
        deliverHandler.process(packet);
    }

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    public void initialize(XMPPServer server) {
        super.initialize(server);
        messageStrategy = server.getOfflineMessageStrategy();
        sessionManager = server.getSessionManager();
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    }

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    public void start() throws IllegalStateException {
        super.start();
        deliverHandler = new SocketPacketWriteHandler(sessionManager, messageStrategy);
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    }

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    public void stop() {
        super.stop();
        deliverHandler = null;
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    }
}