discoserveritem.java

openfire 服务器源码下载

/**
 * $RCSfile$
 * $Revision: 128 $
 * $Date: 2004-10-25 20:42:00 -0300 (Mon, 25 Oct 2004) $
 *
 * Copyright (C) 2008 Jive Software. All rights reserved.
 *
 * This software is published under the terms of the GNU Public License (GPL),
 * a copy of which is included in this distribution, or a commercial license
 * agreement with Jive.
 */

package org.jivesoftware.openfire.disco;

import org.xmpp.packet.JID;

/**
 * Represent a DiscoItem provided by the server. Therefore, the DiscoServerItems are responsible
 * for providing the DiscoInfoProvider and DiscoItemsProvider that will provide the information and
 * items related to this item.<p>
 * <p/>
 * When the server starts up, IQDiscoItemsHandler will request to all the services that implement
 * the ServerItemsProvider interface for their DiscoServerItems. Each DiscoServerItem will provide
 * its DiscoInfoProvider which will automatically be included in IQDiscoInfoHandler as the provider
 * for this item's JID. Moreover, each DiscoServerItem will also provide its DiscoItemsProvider
 * which will automatically be included in IQDiscoItemsHandler. Special attention must be paid to
 * the JID since all the items with the same host will share the same DiscoInfoProvider or
 * DiscoItemsProvider.
 *
 * @author Gaston Dombiak
 */
public class DiscoServerItem extends DiscoItem {

	private final DiscoInfoProvider infoProvider;
	private final DiscoItemsProvider itemsProvider;
	
	public DiscoServerItem(JID jid, String name, String node, String action, DiscoInfoProvider infoProvider, DiscoItemsProvider itemsProvider) {
		super(jid, name, node, action);
		
		if (infoProvider == null)
		{
			throw new IllegalArgumentException("Argument 'infoProvider' cannot be null.");
		}
		
		if (itemsProvider == null)
		{
			throw new IllegalArgumentException("Argument 'itemsProvider' cannot be null.");
		}
		
		this.infoProvider = infoProvider;
		this.itemsProvider = itemsProvider;
	}
	
    /**
     * Returns the DiscoInfoProvider responsible for providing the information related to this item.
     * The DiscoInfoProvider will be automatically included in IQDiscoInfoHandler as the provider
     * for this item's JID.
     *
     * @return the DiscoInfoProvider responsible for providing the information related to this item.
     */
    public DiscoInfoProvider getDiscoInfoProvider()
    {
    	return infoProvider;
    }

    /**
     * Returns the DiscoItemsProvider responsible for providing the items related to this item.
     * The DiscoItemsProvider will be automatically included in IQDiscoItemsHandler as the provider
     * for this item's JID.
     *
     * @return the DiscoItemsProvider responsible for providing the items related to this item.
     */
    public DiscoItemsProvider getDiscoItemsProvider()
    {
    	return itemsProvider;
    }
}