de.tu_berlin.cit.intercloud.xmpp.component.ResourceContainerSocket.java Source code

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Here is the source code for de.tu_berlin.cit.intercloud.xmpp.component.ResourceContainerSocket.java

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/**
 * Copyright 2010-2015 Complex and Distributed IT Systems, TU Berlin
 *
 * 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 de.tu_berlin.cit.intercloud.xmpp.component;

import java.util.concurrent.Exchanger;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.DocumentHelper;

import de.tu_berlin.cit.intercloud.xmpp.core.packet.IQ;
import de.tu_berlin.cit.intercloud.xmpp.core.packet.Message;
import de.tu_berlin.cit.intercloud.xmpp.core.packet.IQ.Type;
import de.tu_berlin.cit.intercloud.xmpp.rest.xml.ResourceDocument;
import de.tu_berlin.cit.intercloud.xmpp.rest.xwadl.ResourceTypeDocument;

/**
 * TODO
 * 
 * @author Alexander Stanik <alexander.stanik@tu-berlin.de>
 */
public class ResourceContainerSocket {

    private final ResourceContainerSocketManager socketManager;

    private final String jid;

    protected final Exchanger<ResourceTypeDocument> xwadlExchanger = new Exchanger<ResourceTypeDocument>();

    protected final Exchanger<ResourceDocument> restXmlExchanger = new Exchanger<ResourceDocument>();

    /**
     * This constructor should only be used by the ResourceContainerSocketManager.
     * 
     * @param socketManager The ResourceContainerSocketManager instance.
     */
    protected ResourceContainerSocket(ResourceContainerSocketManager socketManager, String jid) {
        this.socketManager = socketManager;
        this.jid = jid;
    }

    public String getJid() {
        return jid;
    }

    public void sendMessage(String message) {
        Message m = new Message();
        m.setTo(jid);
        m.setBody(message);
        this.socketManager.sendMessage(m);
    }

    public ResourceTypeDocument requestXWADL(String path) throws InterruptedException {
        IQ iq = new IQ(Type.get);
        iq.setTo(jid);

        // create request
        ResourceTypeDocument request = ResourceTypeDocument.Factory.newInstance();
        request.addNewResourceType().setPath(path);
        try {
            Document doc;
            doc = DocumentHelper.parseText(request.toString());
            // set request
            iq.setChildElement(doc.getRootElement());
        } catch (DocumentException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            return null;
        }

        this.socketManager.sendIQ(iq, this);

        // wait for response
        ResourceTypeDocument response;
        response = this.xwadlExchanger.exchange(request);
        return response;
    }

    public ResourceDocument invokeRestXML(ResourceDocument request) throws InterruptedException {
        IQ iq = new IQ(Type.set);
        iq.setTo(jid);

        // create request
        try {
            Document doc;
            doc = DocumentHelper.parseText(request.toString());
            // set request
            iq.setChildElement(doc.getRootElement());
        } catch (DocumentException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            return null;
        }

        this.socketManager.sendIQ(iq, this);

        // wait for response
        ResourceDocument response;
        response = this.restXmlExchanger.exchange(request);
        return response;

    }

    public void invokeAsyncRestXML(ResourceDocument request, AsynchronousResultListener listener) {
        IQ iq = new IQ(Type.set);
        iq.setTo(jid);

        // create request
        try {
            Document doc;
            doc = DocumentHelper.parseText(request.toString());
            // set request
            iq.setChildElement(doc.getRootElement());
        } catch (DocumentException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        this.socketManager.sendIQ(iq, this);

        // process the result in a separate thread
        new Thread(new Runnable() {
            @Override
            public void run() {
                // wait for response
                ResourceDocument response;
                try {
                    response = restXmlExchanger.exchange(request);
                    listener.processResult(response);
                } catch (InterruptedException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
        }).start();
    }

}