PacketRouterImpl.java 2.97 KB
Newer Older
Matt Tucker's avatar
Matt Tucker committed
1 2 3 4 5
/**
 * $RCSfile$
 * $Revision$
 * $Date$
 *
Matt Tucker's avatar
Matt Tucker committed
6
 * Copyright (C) 2004 Jive Software. All rights reserved.
Matt Tucker's avatar
Matt Tucker committed
7
 *
Matt Tucker's avatar
Matt Tucker committed
8 9
 * This software is published under the terms of the GNU Public License (GPL),
 * a copy of which is included in this distribution.
Matt Tucker's avatar
Matt Tucker committed
10
 */
Matt Tucker's avatar
Matt Tucker committed
11

Matt Tucker's avatar
Matt Tucker committed
12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
package org.jivesoftware.messenger.spi;

import org.jivesoftware.messenger.container.BasicModule;
import org.jivesoftware.messenger.container.TrackInfo;
import org.jivesoftware.messenger.*;

/**
 * Generic packet routing base class.
 *
 * @author Iain Shigeoka
 */
public class PacketRouterImpl extends BasicModule implements PacketRouter {
    public IQRouter iqRouter;
    public PresenceRouter presenceRouter;
    public MessageRouter messageRouter;

28 29 30 31 32
    /**
     * Initialize ComponentManager to handle delegation of packets.
     */
    private ComponentManager componentManager;

Matt Tucker's avatar
Matt Tucker committed
33 34 35 36 37
    /**
     * Create a packet router.
     */
    public PacketRouterImpl() {
        super("XMPP Packet Router");
38 39

        componentManager = ComponentManager.getInstance();
Matt Tucker's avatar
Matt Tucker committed
40 41 42 43 44 45 46 47 48 49 50 51 52
    }

    /**
     * Routes the given packet based on packet recipient and sender. The
     * router defers actual routing decisions to other classes.
     * <h2>Warning</h2>
     * Be careful to enforce concurrency DbC of concurrent by synchronizing
     * any accesses to class resources.
     *
     * @param packet The packet to route
     * @throws NullPointerException If the packet is null or the packet could not be routed
     */
    public void route(XMPPPacket packet) {
Derek DeMoro's avatar
Derek DeMoro committed
53
        if(hasRouted(packet)){
54 55 56
            return;
        }

Matt Tucker's avatar
Matt Tucker committed
57 58 59 60 61 62 63 64 65 66 67 68 69 70 71
        if (packet instanceof Message) {
            route((Message)packet);
        }
        else if (packet instanceof Presence) {
            route((Presence)packet);
        }
        else if (packet instanceof IQ) {
            route((IQ)packet);
        }
        else {
            throw new IllegalArgumentException();
        }
    }

    public void route(IQ packet) {
Derek DeMoro's avatar
Derek DeMoro committed
72 73 74
        if(!hasRouted(packet)){
          iqRouter.route(packet);
        }
Matt Tucker's avatar
Matt Tucker committed
75 76 77
    }

    public void route(Message packet) {
Derek DeMoro's avatar
Derek DeMoro committed
78 79 80
        if(!hasRouted(packet)){
           messageRouter.route(packet);
        }
Matt Tucker's avatar
Matt Tucker committed
81 82 83
    }

    public void route(Presence packet) {
Derek DeMoro's avatar
Derek DeMoro committed
84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99
        if(!hasRouted(packet)){
          presenceRouter.route(packet);
        }
    }

    public boolean hasRouted(XMPPPacket packet){
        if(packet.getRecipient() == null){
            return false;
        }
         // Check for registered components
        Component component = componentManager.getComponent(packet.getRecipient().toBareStringPrep());
        if(component != null){
            component.processPacket(packet);
            return true;
        }
        return false;
Matt Tucker's avatar
Matt Tucker committed
100 101 102 103 104 105 106 107 108 109
    }

    protected TrackInfo getTrackInfo() {
        TrackInfo trackInfo = new TrackInfo();
        trackInfo.getTrackerClasses().put(IQRouter.class, "iqRouter");
        trackInfo.getTrackerClasses().put(MessageRouter.class, "messageRouter");
        trackInfo.getTrackerClasses().put(PresenceRouter.class, "presenceRouter");
        return trackInfo;
    }
}