source: branches/2.2/jabberit_messenger/java_source/src/nu/fw/jeti/jabber/elements/IQDiscoInfo.java @ 3102

/* 
 *      Jeti, a Java Jabber client, Copyright (C) 2003 E.S. de Boer  
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *      but WITHOUT ANY WARRANTY; without even the implied warranty of
 *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *      GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *      For questions, comments etc, 
 *      use the website at http://jeti.jabberstudio.org
 *  or mail me at eric@jeti.tk
 */


//Created on 6-aug-2004
package nu.fw.jeti.jabber.elements;

import java.util.Collections;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;

import nu.fw.jeti.jabber.Backend;

/**
 * @author E.S. de Boer
 * implements the http://jabber.org/protocol/disco#info'/ spec
 */
public class IQDiscoInfo extends Extension implements IQExtension, DiscoveryInfo
{
        private String node;
        private List identities;
        private List features;
        

        public IQDiscoInfo()
        {}
        
        public IQDiscoInfo(String node)
        {
                this.node = node;
        }

        public IQDiscoInfo(String node,List identities,List features)
        {
                this.node = node;
                this.identities = identities;
                this.features = features;
        }

        public String getNode()
        {
                return node;
        }

        public Iterator getIdentities()
        {
                if (identities == null)return null;
                return identities.iterator();
        }
        
        public List getFeatures()
        {
                return Collections.unmodifiableList(features);
        }
        
        public boolean hasFeatures()
        {
                return features!=null;
        }
        
        //discovery implementations
        //use the first identity, browse can not have more identities
        public String getName()
        {
                if (identities == null)return null;
                return ((DiscoIdentity)identities.get(0)).getName();
        }

        //discovery implementations
        //use the first identity, browse can not have more identities
        public String getCategory()
        {
                if (identities == null)return null;
                return ((DiscoIdentity)identities.get(0)).getCategory();
        }

        //discovery implementations
        //use the first identity, browse can not have more identities
        public String getType()
        {
                if (identities == null)return null;
                return ((DiscoIdentity)identities.get(0)).getType();
        }
        

//      public boolean hasChildItems()
//      {
//              return identities != null;
//      }
        
        public void execute(InfoQuery iq,Backend backend){}

        public void appendToXML(StringBuffer xml)
        {
                xml.append("<query xmlns= 'http://jabber.org/protocol/disco#info'");
                appendAttribute(xml, "node", node);
                if (identities == null && features==null)
                { //short cut
                        xml.append("/>");
                        return;
                }
                xml.append('>');
                if (identities != null)
                {
                        for (Iterator i = identities.iterator(); i.hasNext();)
                        {
                                ((DiscoIdentity) i.next()).appendToXML(xml);
                        }
                }
                if(features!=null)
                {
                        for (Iterator i = features.iterator(); i.hasNext();)
                        {
                                xml.append("<feature var='" + i.next() +"'/>");
                        }
                }
                xml.append("</query>");
        }
}

/*
 * Overrides for emacs
 * Local variables:
 * tab-width: 4
 * End:
 */