org.olat.core.util.xml.Util.java Source code

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Here is the source code for org.olat.core.util.xml.Util.java

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/**
 * OLAT - Online Learning and Training<br>
 * http://www.olat.org
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License"); <br>
 * you may not use this file except in compliance with the License.<br>
 * You may obtain a copy of the License at
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing,<br>
 * software distributed under the License is distributed on an "AS IS" BASIS, <br>
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
 * See the License for the specific language governing permissions and <br>
 * limitations under the License.
 * <p>
 * Copyright (c) 1999-2006 at Multimedia- & E-Learning Services (MELS),<br>
 * University of Zurich, Switzerland.
 * <p>
 */
package org.olat.core.util.xml;

import java.beans.XMLEncoder;
import java.io.BufferedOutputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.util.Iterator;
import java.util.List;

import org.dom4j.Element;
import org.olat.core.logging.OLATRuntimeException;

/**
 * enclosing_type Description: <br>
 * 
 * @author Felix Jost
 */
public class Util {

    /**
     * @param o
     * @param file
     */
    public static void writeObjectAsXML(Object o, String file) {

        XMLEncoder e;
        try {
            e = new XMLEncoder(new BufferedOutputStream(new FileOutputStream(file)));
            e.writeObject(o);
            e.close();
        } catch (FileNotFoundException e1) {
            throw new OLATRuntimeException(Util.class, "Error writing object to XML.", e1);
        }

    }

    /**
     * @param elem
     * @return String
     */
    public static String getTextsOnly(Element elem) {
        StringBuilder sb = new StringBuilder();
        visit(sb, elem);
        return sb.toString();
    }

    private static void visit(StringBuilder sb, Element elem) {
        sb.append(elem.getTextTrim());
        List children = elem.elements();
        for (Iterator it_ch = children.iterator(); it_ch.hasNext();) {
            Element element = (Element) it_ch.next();
            visit(sb, element);
        }
    }

}