TagLibEntityResolver.java example

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Lucee-master
/**
 *
 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either 
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public 
 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 * 
 **/
package lucee.transformer.library.tag;

import lucee.runtime.config.Constants;

import org.xml.sax.EntityResolver;
import org.xml.sax.InputSource;

 

/**
 * Hilfsklasse fuer die TagLibFactory, diese Klasse definiert den DTDHandler fuer den Sax Parser. 
 * Die Klasse laedt wenn moeglich die DTD, anhand der Public-id vom lokalen System.
 * 
 * @see  org.xml.sax.EntityResolver
 */
public final class TagLibEntityResolver implements EntityResolver {
	/**
	 * Definert den DTD welche eine TLD validieren kann
	 */
	public final static String LUCEE_DTD_1_0=	"/resource/dtd/web-cfmtaglibrary_1_0.dtd";

	public final static String SUN_DTD_1_0=	"/resource/dtd/web-jsptaglibrary_1_0.dtd";
	public final static String SUN_DTD_1_1=	"/resource/dtd/web-jsptaglibrary_1_1.dtd";
	public final static String SUN_DTD_1_2=	"/resource/dtd/web-jsptaglibrary_1_2.dtd";
		
	/**
	 * Laedt die DTD vom lokalen System.
	 * @see org.xml.sax.EntityResolver#resolveEntity(java.lang.String, java.lang.String)
	 */
	@Override
	public InputSource resolveEntity(String publicId, String systemId) {
		
		for(int i=0;i<Constants.DTDS_TLD.length;i++){
			if ( publicId.equals( Constants.DTDS_TLD[i] ) ) {
				return new InputSource( getClass().getResourceAsStream(LUCEE_DTD_1_0) );
			}
		}
		
		if ( publicId.equals( "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN" ) ) {
			return new InputSource( getClass().getResourceAsStream(SUN_DTD_1_1) );
		}
		else if ( publicId.equals( "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN" ) ) {
			return new InputSource( getClass().getResourceAsStream(SUN_DTD_1_2) );
		}
		return null;
	}

 }