com.noterik.bart.fs.action.NelsonQueueAction.java Source code

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Here is the source code for com.noterik.bart.fs.action.NelsonQueueAction.java

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/* 
* NelsonQueueAction.java
* 
* Copyright (c) 2012 Noterik B.V.
* 
* This file is part of smithers, related to the Noterik Springfield project.
*
* Smithers 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 3 of the License, or
* (at your option) any later version.
*
* Smithers 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 Smithers.  If not, see <http://www.gnu.org/licenses/>.
*/
package com.noterik.bart.fs.action;

import org.apache.log4j.Logger;
import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Node;

import com.noterik.bart.fs.fsxml.FSXMLRequestHandler;
import com.noterik.springfield.tools.fs.URIParser;

/**
 * Action that puts a new job in the Nelson queue
 * This job can be the creation of thumbnails of an image,
 * or taking screenshots of a video.
 *
 * @author Levi Pires <l.pires@noterik.nl>
 * @author Derk Crezee <d.crezee@noterik.nl>
 * @copyright Copyright: Noterik B.V. 2008
 * @package com.noterik.bart.fs.action
 * @access private
 * @version $Id: NelsonQueueAction.java,v 1.10 2011-07-01 11:38:56 derk Exp $
 *
 */
public class NelsonQueueAction extends ActionAdapter {
    /**
     * logger
     */
    private static Logger logger = Logger.getLogger(NelsonQueueAction.class);

    /**
     * queue uri
     */
    private static final String QUEUE_URI = "/domain/{domainid}/service/nelson/queue/{queueid}/job";

    /**
     * redo / don't redo the job
     */
    private static final String REDO = "true";
    private static final String DONT_REDO = "false";

    /**
     * domain id
     */
    private String domainid;

    /**
     * queueid
     * TODO: variable queue id
     */
    private String queueid = "default";

    @Override
    public String run() {

        logger.debug("starting action");

        // parse request
        String requestBody = event.getRequestData();
        try {
            Document doc = DocumentHelper.parseText(requestBody);
            Node node = doc.selectSingleNode("//properties/redo");
            if (node == null || !node.getText().toLowerCase().equals(REDO)) {
                logger.debug("Not redoing the job");
                return null;
            } else {
                logger.debug("about to put in queue");
                putInQueue();
            }
        } catch (Exception e) {
            logger.error("", e);
        }

        return null;
    }

    /**
     * Put the job in the queue
     */
    private void putInQueue() {
        // TODO: get queueid
        // get domainid
        String uri = event.getUri();
        domainid = URIParser.getDomainFromUri(uri);

        // build jobs uri
        String queueUri = QUEUE_URI.replace("{domainid}", domainid).replace("{queueid}", queueid);

        // build xml
        StringBuffer xml = new StringBuffer("<fsxml>");
        xml.append("<properties/>");
        xml.append("<nelsonjob id='1' referid='" + uri + "'/>");
        xml.append("</fsxml>");

        logger.debug("queue uri: " + queueUri);
        logger.debug("xml: " + xml.toString());

        // do request (internally)
        String response = FSXMLRequestHandler.instance().handlePOST(queueUri, xml.toString());
        logger.debug(response);
    }
}