de.kp.ames.web.function.domain.model.TransformatorObject.java Source code

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Here is the source code for de.kp.ames.web.function.domain.model.TransformatorObject.java

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package de.kp.ames.web.function.domain.model;
/**
 * This Java module is part of the
 *  Application Developer Framework
 *
 *  Project: AMES-Web-Service
 *  Package: de.kp.ames.web.function.domain.model
 *  Module: TransformatorObject
 *  @author krusche@dr-kruscheundpartner.de
 *
 * Add your semantic annotations within the SemanticAssist tags and
 * mark them with a leading hashtag #:
 *
 * <SemanticAssist>
 *     #domain #function #model #object #transformator #web
 * </SemanticAssist>
 *
 */

/**
 *   Copyright 2012 Dr. Krusche & Partner PartG
 *
 *   AMES-Web-Service 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.
 *
 *   AMES- Web-Service 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 this software. If not, see <http://www.gnu.org/licenses/>.
 *
 */

import java.util.List;

import javax.activation.DataHandler;
import javax.xml.registry.JAXRException;

import org.freebxml.omar.client.xml.registry.infomodel.ClassificationImpl;
import org.freebxml.omar.client.xml.registry.infomodel.ExtrinsicObjectImpl;
import org.freebxml.omar.client.xml.registry.infomodel.RegistryObjectImpl;
import org.json.JSONArray;
import org.json.JSONObject;

import de.kp.ames.web.core.regrep.JaxrHandle;
import de.kp.ames.web.core.regrep.JaxrIdentity;
import de.kp.ames.web.core.regrep.lcm.JaxrLCM;
import de.kp.ames.web.core.util.FileUtil;
import de.kp.ames.web.function.FncConstants;
import de.kp.ames.web.function.FncMessages;
import de.kp.ames.web.function.transform.cache.XslCacheManager;
import de.kp.ames.web.function.transform.cache.XslTransformator;
import de.kp.ames.web.shared.constants.JsonConstants;

public class TransformatorObject extends BusinessObject {

    /**
     * Constructor
     * 
     * @param handle
     * @param jaxrLCM
     */
    public TransformatorObject(JaxrHandle handle, JaxrLCM jaxrLCM) {
        super(handle, jaxrLCM);
    }

    /**
     * Create RegistryObject representation of TransformatorObject
     * 
     * @param data
     * @return
     * @throws Exception
     */
    public RegistryObjectImpl create(String data) throws Exception {

        /*
         * Initialize data
         */
        JSONObject jForm = new JSONObject(data);

        /* 
         * Create extrinsic object that serves as a wrapper 
         * for the respective transformator
         */
        // 
        ExtrinsicObjectImpl eo = jaxrLCM.createExtrinsicObject();
        if (eo == null)
            throw new JAXRException("[TransformatorObject] Creation of ExtrinsicObject failed.");

        /* 
         * Identifier
         */
        String eid = JaxrIdentity.getInstance().getPrefixUID(FncConstants.TRANSFORMATOR_PRE);

        eo.setLid(eid);
        eo.getKey().setId(eid);

        /* 
         * Home url
         */
        String home = jaxrHandle.getEndpoint().replace("/saml", "");
        eo.setHome(home);

        /* 
         * The transformator is actually transient and managed by the xslt processor;
         * to register the respective xslt file, we have to invoke the transient
         * cache and get the file
         */

        XslCacheManager cacheManager = XslCacheManager.getInstance();

        String key = jForm.getString(JsonConstants.J_KEY);
        XslTransformator transformator = (XslTransformator) cacheManager.getFromCache(key);

        if (transformator == null)
            throw new Exception("[TransformatorObject] XSL Transformator with id <" + key + "> not found.");

        /*
         * Name & description
         */
        String name = jForm.has(RIM_NAME) ? jForm.getString(RIM_NAME) : null;
        String desc = jForm.has(RIM_DESC) ? jForm.getString(RIM_DESC) : null;

        name = (name == null) ? transformator.getName() : name;

        int pos = name.lastIndexOf(".");
        if (pos != -1)
            name = name.substring(0, pos);

        eo.setName(jaxrLCM.createInternationalString(name));

        desc = (desc == null) ? FncMessages.NO_DESCRIPTION_DESC : desc;
        eo.setDescription(jaxrLCM.createInternationalString(desc));

        /*
         * Classifications
         */
        JSONArray jClases = jForm.has(RIM_CLAS) ? new JSONArray(jForm.getString(RIM_CLAS)) : null;
        if (jClases != null) {

            List<ClassificationImpl> classifications = createClassifications(jClases);
            /*
             * Set composed object
             */
            eo.addClassifications(classifications);

        }

        /*
         * Mimetype & repository item
         */
        String mimetype = transformator.getMimetype();
        DataHandler handler = new DataHandler(
                FileUtil.createByteArrayDataSource(transformator.getBytes(), mimetype));

        eo.setMimeType(mimetype);
        eo.setRepositoryItem(handler);

        /*
         * Indicate as created
         */
        this.created = true;

        return eo;

    }

}