/*
* Copyright 2010, 2011 Christopher Pheby
*
* Licensed 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.jadira.bindings.core.loader;
import java.io.IOException;
import java.io.InputStream;
import org.xml.sax.EntityResolver;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
/**
* A SAX entity resolving capable of resolving files from the classpath when
* prefixed with the custom 'classpath:/' URL scheme
*/
public class BindingXmlEntityResolver implements EntityResolver {
private static final String CLASSPATH_SCHEME = "classpath:/";
public InputSource resolveEntity(String publicId, String systemId)
throws SAXException, IOException {
if (systemId.startsWith(CLASSPATH_SCHEME)) {
String filename = systemId.substring(CLASSPATH_SCHEME.length());
InputStream stream = Thread.currentThread().getContextClassLoader()
.getResourceAsStream(filename);
return new InputSource(stream);
} else {
return null;
}
}
}