org.glassfish.jersey.internal.util.SaxHelper Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2012 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* http://glassfish.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package org.glassfish.jersey.internal.util;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.SAXParserFactory;
/**
* Common helper methods for SAX parsers.
*
* @author Michal Gajdos (michal.gajdos at oracle.com)
*/
public final class SaxHelper {
private SaxHelper() {}
/**
* Determines whether the given SAX {@code parserFactory} is from XDK package or not.
*
* @param parserFactory SAX parser factory to evaluate.
* @return {@code true} if the given SAX parser factory is an XDK factory, {@code false} otherwise.
*/
public static boolean isXdkParserFactory(final SAXParserFactory parserFactory) {
return isXdkFactory(parserFactory, "oracle.xml.jaxp.JXSAXParserFactory");
}
/**
* Determines whether the given {@code builderFactory} is from XDK package or not.
*
* @param builderFactory document builder factory to evaluate.
* @return {@code true} if the given document builder factory is an XDK factory, {@code false} otherwise.
*/
public static boolean isXdkDocumentBuilderFactory(final DocumentBuilderFactory builderFactory) {
return isXdkFactory(builderFactory, "oracle.xml.jaxp.JXDocumentBuilderFactory");
}
private static boolean isXdkFactory(final Object factory, final String className) {
try {
final Class xdkFactoryClass = Class.forName(className);
return xdkFactoryClass.isAssignableFrom(factory.getClass());
} catch (ClassNotFoundException e) {
// Ignore this.
}
return false;
}
}