org.jboss.weld.util.AnnotationApiAbstraction Maven / Gradle / Ivy
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* 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.weld.util;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import org.jboss.weld.bootstrap.api.Service;
import org.jboss.weld.exceptions.WeldException;
import org.jboss.weld.resources.spi.ResourceLoader;
public class AnnotationApiAbstraction extends ApiAbstraction implements Service {
public final Class PRIORITY_ANNOTATION_CLASS;
private final Method PRIORITY_VALUE;
public AnnotationApiAbstraction(ResourceLoader resourceLoader) {
super(resourceLoader);
this.PRIORITY_ANNOTATION_CLASS = annotationTypeForName("javax.annotation.Priority");
Method method = null;
if (!PRIORITY_ANNOTATION_CLASS.equals(DummyAnnotation.class)) {
try {
method = PRIORITY_ANNOTATION_CLASS.getMethod("value");
} catch (Throwable e) {
throw new WeldException(e);
}
}
this.PRIORITY_VALUE = method;
}
public Integer getPriority(Object annotationInstance) {
if (PRIORITY_VALUE == null) {
return null;
}
try {
return (Integer) PRIORITY_VALUE.invoke(annotationInstance);
} catch (Throwable e) {
return null;
}
}
@Override
public void cleanup() {
}
}