/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This 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 software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jbpm.xml;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import org.jbpm.PvmException;
import org.xml.sax.EntityResolver;
import org.xml.sax.InputSource;
/**
* an implementation of {@link Entity} based on a {@link URL} used in the
* {@link Parser}s implementation of {@link EntityResolver}.
*
* @author Tom Baeyens
*/
public class UrlEntity implements Entity {
protected String systemId = null;
protected URL url = null;
public UrlEntity(URL url, String systemId) {
this.url = url;
this.systemId = systemId;
}
public UrlEntity(String resource, ClassLoader classLoader) {
this.url = classLoader.getResource(resource);
if (url!=null) {
this.systemId = url.toString();
} else {
throw new PvmException("couldn't create Entity from resource "+resource);
}
}
public InputSource getInputSource() {
try {
InputStream stream = url.openStream();
InputSource inputSource = new InputSource(stream);
inputSource.setSystemId(systemId);
return inputSource;
} catch (IOException e) {
throw new PvmException("couldn't open stream from url "+url, e);
}
}
}