org.maodian.flyingcat.xmpp.codec.BindCodec.java Source code

Introduction

Here is the source code for org.maodian.flyingcat.xmpp.codec.BindCodec.java

Source

/*
 * Copyright 2013 - 2013 Cole Wen
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.maodian.flyingcat.xmpp.codec;

import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;

import org.maodian.flyingcat.xmpp.XmppNamespace;
import org.maodian.flyingcat.xmpp.entity.Bind;
import org.maodian.flyingcat.xmpp.entity.InfoQuery;
import org.maodian.flyingcat.xmpp.state.StreamError;
import org.maodian.flyingcat.xmpp.state.XmppContext;
import org.maodian.flyingcat.xmpp.state.XmppException;
import org.springframework.stereotype.Component;

/**
 * @author Cole Wen
 *
 */
@Component
public class BindCodec extends AbstractCodec implements InfoQueryProcessor {

    /* (non-Javadoc)
     * @see org.maodian.flycat.xmpp.codec.Decoder#decode(java.lang.String)
     */
    @Override
    public Bind decode(XMLStreamReader xmlsr) {
        try {
            xmlsr.nextTag();
            xmlsr.require(XMLStreamConstants.START_ELEMENT, XmppNamespace.BIND, "resource");
            Bind bind = new Bind();
            bind.setResource(xmlsr.getElementText());
            return bind;
        } catch (XMLStreamException e) {
            throw new XmppException(e, StreamError.INVALID_XML);
        }
    }

    /* (non-Javadoc)
     * @see org.maodian.flycat.xmpp.codec.Encoder#encode(java.lang.Object, javax.xml.stream.XMLStreamWriter)
     */
    @Override
    public void encode(Object object, XMLStreamWriter xmlsw) throws XMLStreamException {
        Bind bind = (Bind) object;
        xmlsw.writeStartElement("bind");
        xmlsw.writeDefaultNamespace(XmppNamespace.BIND);

        xmlsw.writeStartElement("jid");
        xmlsw.writeCharacters(bind.getJabberId());

        xmlsw.writeEndElement();
        xmlsw.writeEndElement();
    }

    /* (non-Javadoc)
     * @see org.maodian.flycat.xmpp.codec.Processor#process(java.lang.Object)
     */
    @Override
    public Object processGet(XmppContext context, InfoQuery iq) {
        throw new UnsupportedOperationException();
    }

    /* (non-Javadoc)
     * @see org.maodian.flycat.xmpp.codec.InfoQueryProcessor#processSet(org.maodian.flycat.xmpp.state.XmppContext, org.maodian.flycat.xmpp.InfoQuery)
     */
    @Override
    public Object processSet(XmppContext context, InfoQuery iq) {
        String resource = ((Bind) iq.getPayload()).getResource();
        context.bind(resource);
        Bind bind = new Bind();
        bind.setJabberId(context.getJabberID().toFullJID());
        return bind;
    }

}