www.pudn.com > Caliph_v0.9.13+Emirv0.8.5-src.zip > Mpeg7SemanticEvent.java

/* 
 * This file is part of Caliph & Emir. 
 * 
 * Caliph & Emir 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. 
 * 
 * Caliph & Emir 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 Caliph & Emir; if not, write to the Free Software 
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
 * 
 * Copyright statement: 
 * -------------------- 
 * (c) 2002-2004 by Mathias Lux (mathias@juggle.at) and the Know-Center Graz 
 * Inffeldgasse 21a, 8010 Graz, Austria 
 * http://www.know-center.at 
 */ 
 
package at.know.center.wv_wr.imb.objectcatalog.mpeg7tools; 
 
import org.jdom.Document; 
import org.jdom.Element; 
import org.jdom.Namespace; 
import org.jdom.output.XMLOutputter; 
import org.jdom.output.Format; 
 
/** 
 * Date: 30.08.2002 
 * Time: 13:03:35 
 * @author Mathias Lux, mathias@juggle.at 
 */ 
public class Mpeg7SemanticEvent { 
    Document d; 
    Element semantics; 
    private Namespace mpeg7, xsi; 
    private String label; 
    private String name_de, name_en, desc; 
 
    /** 
     * creates a new semantic event with given parameters 
     * @param nameDe name of the event in german language 
     * @param nameEn name of the event in english 
     * @param description free text description of the event 
     * @param documentLabel label of the document, just like a comment or a descriptive name 
     */ 
    public Mpeg7SemanticEvent(String nameDe, String nameEn, String description, String documentLabel) { 
        this.desc = description; 
        this.label = documentLabel; 
        this.name_de = nameDe; 
        this.name_en = nameEn; 
        initDocument(); 
    } 
 
    public Mpeg7SemanticEvent(String name, String description, String documentLabel) { 
        this.desc = description; 
        this.label = documentLabel; 
        this.name_de = name; 
        this.name_en = null; 
        initDocument(); 
    } 
 
    private void initDocument() { 
        mpeg7 = Namespace.getNamespace("", "urn:mpeg:mpeg7:schema:2001"); 
        xsi = Namespace.getNamespace("xsi", "http://www.w3.org/2001/XMLSchema-instance"); 
        Element root = new Element("Mpeg7", mpeg7); 
        root.setAttribute("schemaLocation", "urn:mpeg:mpeg7:schema:2001 C:\\mpeg7\\Mpeg7-2001.xsd", xsi); 
        root.addNamespaceDeclaration(mpeg7); 
        root.addNamespaceDeclaration(xsi); 
        d = new Document(root); 
 
        // Description 
        Element description = new Element("Description", mpeg7); 
        description.setAttribute("type", "SemanticDescriptionType", xsi); 
        root.addContent(description); 
 
        // Semantics 
        semantics = new Element("Semantics", mpeg7); 
        semantics.addContent(new Element("Label", mpeg7).addContent(new Element("Name", mpeg7).addContent(label))); 
        description.addContent(semantics); 
    } 
 
    public Document createDocument() { 
        Element event = new Element("SemanticBase", mpeg7); 
        event.setAttribute("type", "EventType", xsi); 
        event.setAttribute("id", "event-object-" + name_en.toLowerCase().replace(' ', '_')); 
        semantics.addContent(event); 
        Element label; 
        Element mNameDe; 
        Element mNameEn; 
        if (name_en != null) { 
            mNameDe = new Element("Name", mpeg7).addContent(name_de).setAttribute("lang", "de", Namespace.XML_NAMESPACE); 
            mNameEn = new Element("Name", mpeg7).addContent(name_en).setAttribute("lang", "en", Namespace.XML_NAMESPACE); 
            label = new Element("Label", mpeg7).addContent(mNameDe).addContent(mNameEn); 
        } else { 
            mNameDe = new Element("Name", mpeg7).addContent(name_de); 
            label = new Element("Label", mpeg7).addContent(mNameDe); 
        } 
//        label = new Element("Label", mpeg7).addContent(mNameDe).addContent(mNameEn); 
        event.addContent(label); 
        Element definition = new Element("Definition", mpeg7).addContent(new Element("FreeTextAnnotation", mpeg7).addContent(desc)); 
        event.addContent(definition); 
        return d; 
    } 
 
    /** 
     * returns a valid MPEG7 document as String 
     */ 
    public String toString() { 
        XMLOutputter outputter = new XMLOutputter(Format.getPrettyFormat()); 
        String strData = outputter.outputString(createDocument()); 
        return strData; 
    } 
 
}