org.apereo.portal.tools.dbloader.BaseDbXmlHandler.java Source code

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Here is the source code for org.apereo.portal.tools.dbloader.BaseDbXmlHandler.java

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/**
 * Licensed to Apereo under one or more contributor license
 * agreements. See the NOTICE file distributed with this work
 * for additional information regarding copyright ownership.
 * Apereo licenses this file to you under the Apache License,
 * Version 2.0 (the "License"); you may not use this file
 * except in compliance with the License.  You may obtain a
 * copy of the License at the following location:
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apereo.portal.tools.dbloader;

import java.io.IOException;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apereo.portal.utils.DTDResolver;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.ext.DefaultHandler2;

/**
 * Base SAX handler for providing an entity resolver and capturing character data
 * 
 * @author Eric Dalquist
 * @version $Revision$
 */
public class BaseDbXmlHandler extends DefaultHandler2 {
    protected final Log logger = LogFactory.getLog(this.getClass());

    private final DTDResolver resolver = new DTDResolver();

    protected StringBuilder chars;

    /* (non-Javadoc)
     * @see org.xml.sax.ext.DefaultHandler2#resolveEntity(java.lang.String, java.lang.String, java.lang.String, java.lang.String)
     */
    @Override
    public InputSource resolveEntity(String name, String publicId, String baseURI, String systemId)
            throws SAXException, IOException {
        return resolver.resolveEntity(publicId, systemId);
    }

    /* (non-Javadoc)
     * @see org.xml.sax.ext.DefaultHandler2#resolveEntity(java.lang.String, java.lang.String)
     */
    @Override
    public InputSource resolveEntity(String publicId, String systemId) throws SAXException, IOException {
        return resolver.resolveEntity(publicId, systemId);
    }

    /* (non-Javadoc)
     * @see org.xml.sax.helpers.DefaultHandler#characters(char[], int, int)
     */
    @Override
    public void characters(char[] ch, int start, int length) throws SAXException {
        if (this.chars != null) {
            this.chars.append(ch, start, length);
        }
    }
}