/*
* 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;
import java.io.*;
import java.util.logging.*;
import javax.xml.stream.*;
import com.caucho.vfs.*;
/**
* Marshals from an xmpp request to and from a serialized class
*/
abstract public class AbstractXmppMarshal implements XmppMarshal
{
private static final Logger log
= Logger.getLogger(AbstractXmppMarshal.class.getName());
/**
* Serializes the object to XML
*/
abstract public void toXml(XmppStreamWriter out, Serializable object)
throws IOException, XMLStreamException;
/**
* Deserializes the object from XML
*/
abstract public Serializable fromXml(XmppStreamReader in)
throws IOException, XMLStreamException;
protected void skipToEnd(XMLStreamReader in, String tagName)
throws IOException, XMLStreamException
{
if (in == null)
return;
int tag = in.getEventType();
for (; tag > 0; tag = in.next()) {
if (log.isLoggable(Level.FINEST))
debug(in);
if (tag == XMLStreamReader.START_ELEMENT) {
}
else if (tag == XMLStreamReader.END_ELEMENT) {
if (tagName.equals(in.getLocalName()))
return;
}
}
}
protected void expectEnd(XMLStreamReader in, String tagName)
throws IOException, XMLStreamException
{
expectEnd(in, tagName, in.nextTag());
}
protected void expectEnd(XMLStreamReader in, String tagName, int tag)
throws IOException, XMLStreamException
{
if (tag != XMLStreamReader.END_ELEMENT)
throw new IllegalStateException("expected </" + tagName + ">"
+ " at <" + in.getLocalName() + ">");
else if (! tagName.equals(in.getLocalName()))
throw new IllegalStateException("expected </" + tagName + ">"
+ " at </" + in.getLocalName() + ">");
}
protected void debug(XMLStreamReader in)
throws IOException, XMLStreamException
{
if (XMLStreamReader.START_ELEMENT == in.getEventType()) {
StringBuilder sb = new StringBuilder();
sb.append("<").append(in.getLocalName());
if (in.getNamespaceURI() != null)
sb.append("{").append(in.getNamespaceURI()).append("}");
for (int i = 0; i < in.getAttributeCount(); i++) {
sb.append(" ");
sb.append(in.getAttributeLocalName(i));
sb.append("='");
sb.append(in.getAttributeValue(i));
sb.append("'");
}
sb.append(">");
log.finest(this + " " + sb);
}
else if (XMLStreamReader.END_ELEMENT == in.getEventType()) {
log.finest(this + " </" + in.getLocalName() + ">");
}
else if (XMLStreamReader.CHARACTERS == in.getEventType()) {
String text = in.getText().trim();
if (! "".equals(text))
log.finest(this + " text='" + text + "'");
}
else
log.finest(this + " tag=" + in.getEventType());
}
@Override
public String toString()
{
return getClass().getSimpleName() + "[]";
}
}