/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.tomee.myfaces;
import org.apache.myfaces.config.annotation.DefaultAnnotationProvider;
import org.apache.myfaces.shared.util.ClassUtils;
import org.apache.openejb.assembler.classic.WebAppBuilder;
import org.apache.openejb.loader.SystemInstance;
import org.apache.openejb.util.LogCategory;
import org.apache.openejb.util.Logger;
import javax.faces.context.ExternalContext;
import java.lang.annotation.Annotation;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
public class TomEEAnnotationProvider extends DefaultAnnotationProvider {
private static final Logger LOGGER = Logger.getInstance(LogCategory.OPENEJB, TomEEAnnotationProvider.class);
@Override
public Map<Class<? extends Annotation>, Set<Class<?>>> getAnnotatedClasses(final ExternalContext ctx) {
final ClassLoader cl = getClassLoader();
final WebAppBuilder builder = SystemInstance.get().getComponent(WebAppBuilder.class);
if (builder == null) {
throw new IllegalStateException("WebAppBuilder not found in SystemInstance. "
+ "Ensure the following entry exists in the Tomcat server.xml file: <Listener className=\"org.apache.tomee.catalina.ServerListener\"/>"
);
}
final Map<Class<? extends Annotation>, Set<Class<?>>> map = new HashMap<Class<? extends Annotation>, Set<Class<?>>>();
final Map<ClassLoader, Map<String, Set<String>>> jsfClasses = builder.getJsfClasses();
if (builder == null) {
throw new IllegalStateException("JsfClasses not found in WebAppBuilder");
}
final Map<String, Set<String>> scanned = jsfClasses.get(cl);
if (scanned == null) {
return Collections.emptyMap();
}
for (final Map.Entry<String, Set<String>> entry : scanned.entrySet()) {
final Class<? extends Annotation> annotation;
try {
annotation = (Class<? extends Annotation>) cl.loadClass(entry.getKey());
} catch (final ClassNotFoundException e) {
continue;
}
final Set<String> list = entry.getValue();
final Set<Class<?>> annotated = new HashSet<Class<?>>(list.size());
for (final String name : list) {
try {
annotated.add(cl.loadClass(name));
} catch (final ClassNotFoundException ignored) {
LOGGER.warning("class '" + name + "' was found but can't be loaded as a JSF class");
}
}
map.put(annotation, annotated);
}
return map;
}
private ClassLoader getClassLoader() {
final ClassLoader loader = ClassUtils.getContextClassLoader();
if (loader == null) {
return getClass().getClassLoader();
}
return loader;
}
}