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

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Here is the source code for org.olat.core.util.xml.XMLParser.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.io.InputStream;

import org.dom4j.Document;
import org.dom4j.io.SAXReader;
import org.olat.core.logging.OLATRuntimeException;
import org.xml.sax.EntityResolver;

/**
 * Description: <br>
 * purpose: may parse and validate documents
 * 
 * @author Felix Jost
 */
public class XMLParser {
    private EntityResolver er;

    /**
     * Constructor for XMLParser.
     */
    public XMLParser() {
        this.er = new DefaultEntityResolver();
    }

    /**
     * Constructor for XMLParser.
     * 
     * @param er
     */
    public XMLParser(EntityResolver er) {
        this.er = er;
    }

    /**
     * @param in
     * @param validateXML
     * @return parsed document
     */
    public Document parse(InputStream in, boolean validateXML) {
        Document document;
        try {
            SAXReader reader = new SAXReader();
            reader.setEntityResolver(er);
            reader.setValidation(validateXML);
            document = reader.read(in, "");
        } catch (Exception e) {
            throw new OLATRuntimeException(XMLParser.class, "Exception reading XML", e);
        }
        return document;
    }

    /**
     * @return entity resolver instance
     */
    public EntityResolver getEntityResolver() {
        return er;
    }

    /**
     * @param resolver
     */
    public void setEntityResolver(EntityResolver resolver) {
        er = resolver;
    }

}