/*
* JBoss, Home of Professional Open Source
* Copyright 2013, Red Hat, Inc., and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* 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.jboss.as.weld.discovery;
import java.lang.annotation.Annotation;
import java.util.Set;
import org.jboss.as.server.deployment.annotation.CompositeIndex;
import org.jboss.as.weld.logging.WeldLogger;
import org.jboss.jandex.ClassInfo;
import org.jboss.jandex.DotName;
import org.jboss.weld.resources.spi.ClassFileInfo;
import org.jboss.weld.resources.spi.ClassFileServices;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import com.google.common.collect.ImmutableSet;
/**
*
* @author Martin Kouba
*/
public class WeldClassFileServices implements ClassFileServices {
private CompositeIndex index;
private LoadingCache<DotName, Set<String>> annotationClassAnnotationsCache;
private final ClassLoader moduleClassLoader;
private class AnnotationClassAnnotationLoader extends CacheLoader<DotName, Set<String>> {
@Override
public Set<String> load(DotName name) throws Exception {
ClassInfo annotationClassInfo = index.getClassByName(name);
ImmutableSet.Builder<String> builder = ImmutableSet.builder();
if (annotationClassInfo != null) {
for (DotName annotationName : annotationClassInfo.annotations().keySet()) {
builder.add(annotationName.toString());
}
} else {
try {
Class<?> annotationClass = moduleClassLoader.loadClass(name.toString());
for (Annotation annotation : annotationClass.getDeclaredAnnotations()) {
builder.add(annotation.annotationType().getName());
}
} catch (ClassNotFoundException e) {
WeldLogger.DEPLOYMENT_LOGGER.unableToLoadAnnotation(name.toString());
}
}
return builder.build();
}
}
/**
*
* @param index
*/
public WeldClassFileServices(CompositeIndex index, ClassLoader moduleClassLoader) {
if (index == null) {
throw WeldLogger.ROOT_LOGGER.cannotUseAtRuntime(ClassFileServices.class.getSimpleName());
}
this.moduleClassLoader = moduleClassLoader;
this.index = index;
this.annotationClassAnnotationsCache = CacheBuilder.newBuilder().build(new AnnotationClassAnnotationLoader());
}
@Override
public ClassFileInfo getClassFileInfo(String className) {
return new WeldClassFileInfo(className, index, annotationClassAnnotationsCache, moduleClassLoader);
}
@Override
public void cleanupAfterBoot() {
if (annotationClassAnnotationsCache != null) {
annotationClassAnnotationsCache.invalidateAll();
annotationClassAnnotationsCache = null;
}
index = null;
}
@Override
public void cleanup() {
cleanupAfterBoot();
}
}