org.apache.tomcat.util.digester.ParserFeatureSetterFactory Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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
*
* 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.apache.tomcat.util.digester;
import java.util.Properties;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import org.xml.sax.SAXException;
import org.xml.sax.SAXNotRecognizedException;
import org.xml.sax.SAXNotSupportedException;
/**
* Creates a SAXParser based on the underlying parser.
* Allows logical properties depending on logical parser versions
* to be set.
*
* @since 1.6
*/
public class ParserFeatureSetterFactory{
/**
* true is Xerces is used.
*/
private static boolean isXercesUsed;
static {
try{
// Use reflection to avoid a build dependency with Xerces.
Class.forName("org.apache.xerces.impl.Version");
isXercesUsed = true;
} catch (Exception ex){
isXercesUsed = false;
}
}
/**
* Create a new SAXParser
* @param properties (logical) properties to be set on parser
* @return a SAXParser configured based on the underlying
* parser implementation.
*/
public static SAXParser newSAXParser(Properties properties)
throws ParserConfigurationException,
SAXException,
SAXNotRecognizedException,
SAXNotSupportedException {
if (isXercesUsed){
return XercesParser.newSAXParser(properties);
} else {
return GenericParser.newSAXParser(properties);
}
}
}