/*
* IronJacamar, a Java EE Connector Architecture implementation
* Copyright 2011, Red Hat Inc, and individual contributors
* as indicated by the @author tags. See the copyright.txt file 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.jboss.jca.common.annotations.repository.jandex;
import org.jboss.jca.common.spi.annotations.repository.Annotation;
import org.jboss.jca.common.spi.annotations.repository.AnnotationRepository;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import org.jboss.jandex.AnnotationInstance;
import org.jboss.jandex.AnnotationTarget;
import org.jboss.jandex.ClassInfo;
import org.jboss.jandex.DotName;
import org.jboss.jandex.FieldInfo;
import org.jboss.jandex.Index;
import org.jboss.jandex.MethodInfo;
import org.jboss.jandex.Type;
/**
* An AnnotationRepositoryImpl.
*
* @author <a href="mailto:stefano.maestri@redhat.com">Stefano Maestri</a>
* @author <a href="mailto:jesper.pedersen@jboss.org">Jesper Pedersen</a>
*/
public class AnnotationRepositoryImpl implements AnnotationRepository
{
private Index backingRepository;
private ClassLoader cl;
/**
* Create a new AnnotationRepositoryImpl using a Jandex backend
*
* @param backingRepository The repository
* @param cl The class loader
*/
public AnnotationRepositoryImpl(Index backingRepository, ClassLoader cl)
{
if (backingRepository == null)
throw new IllegalArgumentException("repository cannot be null");
this.backingRepository = backingRepository;
this.cl = cl;
}
/**
* {@inheritDoc}
*/
@Override
public Collection<Annotation> getAnnotation(Class<?> annotationClass)
{
List<AnnotationInstance> instances =
backingRepository.getAnnotations(DotName.createSimple(annotationClass.getName()));
ArrayList<Annotation> annotations = new ArrayList<Annotation>(instances.size());
for (AnnotationInstance instance : instances)
{
AnnotationTarget target = instance.target();
Annotation annotation = null;
if (target instanceof MethodInfo)
{
MethodInfo m = (MethodInfo) target;
List<String> parameterTypes = new ArrayList<String>(m.args().length);
for (Type type : m.args())
{
parameterTypes.add(type.toString());
}
String declaringClass = m.declaringClass().name().toString();
annotation = new AnnotationImpl(declaringClass, cl, parameterTypes, m.name(), true, false, annotationClass);
}
else if (target instanceof FieldInfo)
{
FieldInfo f = (FieldInfo) target;
String declaringClass = f.declaringClass().name().toString();
annotation = new AnnotationImpl(declaringClass, cl, null, f.name(), false, true, annotationClass);
}
else if (target instanceof ClassInfo)
{
ClassInfo c = (ClassInfo) target;
annotation = new AnnotationImpl(c.name().toString(), cl, null, null, false, false, annotationClass);
}
if (annotation != null)
{
annotations.add(annotation);
}
}
annotations.trimToSize();
if (annotations.size() == 0)
{
return null;
}
else
{
return Collections.unmodifiableList(annotations);
}
}
}