/*
* Copyright 2014 Harald Wellmann.
*
* 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.
*
* Copied from Weld, where this class is not exported.
*/
package org.ops4j.pax.cdi.weld.impl.bda;
import java.io.IOException;
import java.net.URL;
import java.util.Collection;
import java.util.Collections;
import org.jboss.weld.resources.spi.ResourceLoader;
import org.jboss.weld.resources.spi.ResourceLoadingException;
/**
* General {@link ResourceLoader} implementation that delegates resource loading to
* {@link #classLoader()}.
* <p>
* Not exported by Weld, so we use a local copy for Pax CDI.
*
* @author Jozef Hartinger
*
*/
public abstract class AbstractClassLoaderResourceLoader implements ResourceLoader {
private static final String ERROR_LOADING_CLASS = "Error loading class ";
@Override
public Class<?> classForName(String name) {
try {
return classLoader().loadClass(name);
}
catch (ClassNotFoundException | LinkageError | TypeNotPresentException e) {
throw new ResourceLoadingException(ERROR_LOADING_CLASS + name, e);
}
}
@Override
public URL getResource(String name) {
return classLoader().getResource(name);
}
@Override
public Collection<URL> getResources(String name) {
try {
return Collections.list(classLoader().getResources(name));
}
catch (IOException e) {
throw new ResourceLoadingException("Error loading resource " + name, e);
}
}
protected abstract ClassLoader classLoader();
}