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/* AnnotationSaver.java
* =========================================================================
* This file is part of the GrInvIn project - http://www.grinvin.org
*
* Copyright (C) 2005-2008 Universiteit Gent
*
* This program 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.
*
* This program 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.
*
* A copy of the GNU General Public License can be found in the file
* LICENSE.txt provided with the source distribution of this program (see
* the META-INF directory in the source jar). This license can also be
* found on the GNU website at http://www.gnu.org/licenses/gpl.html.
*
* If you did not receive a copy of the GNU General Public License along
* with this program, contact the lead developer, or write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
package org.grinvin.io.graphs;
import java.io.IOException;
import java.io.OutputStream;
import org.grinvin.graphs.AnnotationView;
import org.grinvin.graphs.Edge;
import org.grinvin.graphs.Vertex;
import org.grinvin.io.LoaderSaverHelper;
import org.jdom.DocType;
import org.jdom.Element;
/**
*
*/
public class AnnotationSaver {
//
private AnnotationSaver() { }
/**
* Convert the given annotation to a JDOM-element.
*/
public static Element toElement(AnnotationView annotation) {
Element element = new Element("annotation");
// vertex annotations
for (Vertex v: annotation.getPeer().vertices()) {
if (annotation.getAnnotation(v) != null) {
Element vertex = new Element("vertex");
vertex.setAttribute("id", Integer.toString(v.getIndex()));
vertex.setAttribute("text", annotation.getAnnotation(v).toString());
element.addContent(vertex);
}
}
// edge annotations
for (Edge e: annotation.getPeer().edges()) {
if (annotation.getAnnotation(e) != null) {
Element edge = new Element("edge");
edge.setAttribute("from", Integer.toString(e.getFirstEndpoint().getIndex()));
edge.setAttribute("to", Integer.toString(e.getSecondEndpoint().getIndex()));
edge.setAttribute("text", annotation.getAnnotation(e).toString());
element.addContent(edge);
}
}
return element;
}
/**
* Save the annotation graph onto the output stream.
* @param out Output stream to which the result shall be written.
*/
public static void save(AnnotationView annotation, OutputStream out) throws IOException {
LoaderSaverHelper.outputXML(toElement(annotation), new DocType("annotation", "-//GrInvIn IO//Annotation 1.0//EN", "http://downloads.grinvin.org/dtds/io/annotation-1.0.dtd"), out);
}
}
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