/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source 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.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.xmpp.im;
import com.caucho.vfs.*;
import com.caucho.xmpp.*;
import java.io.*;
import java.util.*;
import java.util.logging.*;
import javax.xml.stream.*;
/**
* Roster query (jabber:iq:roster defined in rfc3921)
*
* <code><pre>
* element query {
* item*
* }
*
* element item {
* attribute ask?,
* attribute address,
* attribute name?,
* attribute subscription?,
*
* group*
* }
*
* element group {
* string
* }
* </pre></code>
*/
public class XmppRosterQueryMarshal extends AbstractXmppMarshal {
private static final Logger log
= Logger.getLogger(XmppRosterQueryMarshal.class.getName());
/**
* Returns the namespace uri for the XMPP stanza value
*/
public String getNamespaceURI()
{
return "jabber:iq:roster";
}
/**
* Returns the local name for the XMPP stanza value
*/
public String getLocalName()
{
return "query";
}
/**
* Returns the java classname of the object
*/
public String getClassName()
{
return RosterQuery.class.getName();
}
/**
* Serializes the object to XML
*/
public void toXml(XmppStreamWriter out, Serializable object)
throws IOException, XMLStreamException
{
RosterQuery roster = (RosterQuery) object;
out.writeStartElement("", "query", "jabber:iq:roster");
out.writeNamespace("", "jabber:iq:roster");
RosterItem []items = roster.getItems();
if (items != null) {
for (RosterItem item : items) {
out.writeStartElement("item");
if (item.getAsk() != null)
out.writeAttribute("ask", item.getAsk());
if (item.getAddress() != null)
out.writeAttribute("address", item.getAddress());
if (item.getName() != null)
out.writeAttribute("name", item.getName());
if (item.getSubscription() != null)
out.writeAttribute("subscription", item.getSubscription());
String []groups = item.getGroup();
if (groups != null) {
for (String group : groups) {
out.writeStartElement("group");
out.writeCharacters(group);
out.writeEndElement(); // </group>
}
}
out.writeEndElement(); // </item>
}
}
out.writeEndElement(); // </query>
}
/**
* Deserializes the object from XML
*/
public Serializable fromXml(XmppStreamReader in)
throws IOException, XMLStreamException
{
ArrayList<RosterItem> itemList = new ArrayList<RosterItem>();
boolean isFinest = log.isLoggable(Level.FINEST);
int tag = in.nextTag();
while (tag > 0) {
if (isFinest)
debug(in);
if (XMLStreamReader.END_ELEMENT == tag) {
return new RosterQuery(itemList);
}
else if (XMLStreamReader.START_ELEMENT != tag
|| ! "item".equals(in.getLocalName())) {
log.warning("expected start");
skipToEnd(in, "query");
return null;
}
String ask = null;
String address = null;
String name = null;
String subscription = null;
for (int i = 0; i < in.getAttributeCount(); i++) {
String attr = in.getAttributeLocalName(i);
if ("ask".equals(attr))
ask = in.getAttributeValue(i);
else if ("address".equals(attr))
address = in.getAttributeValue(i);
else if ("name".equals(attr))
name = in.getAttributeValue(i);
else if ("subscription".equals(attr))
subscription = in.getAttributeValue(i);
}
ArrayList<String> groups = new ArrayList<String>();
tag = in.nextTag();
while (XMLStreamReader.START_ELEMENT == in.getEventType()
&& "group".equals(in.getLocalName())) {
groups.add(in.getElementText());
skipToEnd(in, "group");
}
skipToEnd(in, "item");
RosterItem item = new RosterItem(ask, address, name, subscription, groups);
itemList.add(item);
tag = in.nextTag();
}
return null;
}
}