/*
* IronJacamar, a Java EE Connector Architecture implementation
* Copyright 2014, 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 Eclipse Public License 1.0 as
* published by the Free Software Foundation.
*
* 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 Eclipse
* Public License for more details.
*
* You should have received a copy of the Eclipse 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.ironjacamar.common.annotations.repository.jandex;
import org.ironjacamar.common.CommonBundle;
import org.ironjacamar.common.spi.annotations.repository.Annotation;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.jboss.logging.Logger;
import org.jboss.logging.Messages;
/**
* An AnnotationImpl.
*
* @author <a href="mailto:stefano.maestri@redhat.com">Stefano Maestri</a>
* @author <a href="mailto:jesper.pedersen@ironjacamar.org">Jesper Pedersen</a>
*/
public class AnnotationImpl implements Annotation
{
private static Logger log = Logger.getLogger(AnnotationImpl.class);
private static CommonBundle bundle = Messages.getBundle(CommonBundle.class);
private String className;
private ClassLoader cl;
private List<String> parameterTypes;
private String memberName;
private boolean onMethod;
private boolean onField;
private Class<? extends java.lang.annotation.Annotation> annotationClass;
/**
* Create a new AnnotationImpl.
*
* @param className className
* @param cl classloader
* @param parameterTypes parameterTypes
* @param memberName memberName
* @param onMethod onMethod
* @param onField onField
* @param annotationClass annotationClass
*/
@SuppressWarnings("unchecked")
public AnnotationImpl(String className, ClassLoader cl, List<String> parameterTypes,
String memberName, boolean onMethod, boolean onField, Class<?> annotationClass)
{
this.className = className;
this.cl = cl;
if (parameterTypes != null)
{
this.parameterTypes = new ArrayList<String>(parameterTypes.size());
this.parameterTypes.addAll(parameterTypes);
}
else
{
this.parameterTypes = new ArrayList<String>(0);
}
this.memberName = memberName;
this.onMethod = onMethod;
this.onField = onField;
if (annotationClass.isAnnotation())
{
this.annotationClass = (Class<? extends java.lang.annotation.Annotation>)annotationClass;
}
else
{
throw new IllegalArgumentException(bundle.annotationClassShouldBeAnnotation());
}
}
/**
* Get the className.
*
* @return the className.
*/
@Override
public String getClassName()
{
return className;
}
/**
* Get the annotation.
*
* @return the annotation.
*/
@Override
public Object getAnnotation()
{
try
{
if (isOnField())
{
Class<?> clazz = cl.loadClass(className);
while (!clazz.equals(Object.class))
{
try
{
Field field = SecurityActions.getDeclaredField(clazz, memberName);
return field.getAnnotation(annotationClass);
}
catch (Throwable t)
{
clazz = clazz.getSuperclass();
}
}
}
else if (isOnMethod())
{
Class<?> clazz = cl.loadClass(className);
Class<?>[] params = new Class<?>[parameterTypes.size()];
int i = 0;
for (String paramClazz : parameterTypes)
{
params[i] = cl.loadClass(paramClazz);
i++;
}
while (!clazz.equals(Object.class))
{
try
{
Method method = SecurityActions.getDeclaredMethod(clazz, memberName, params);
return method.getAnnotation(annotationClass);
}
catch (Throwable t)
{
clazz = clazz.getSuperclass();
}
}
}
else
{ // onclass
Class<?> clazz = cl.loadClass(className);
return clazz.getAnnotation(annotationClass);
}
}
catch (Exception e)
{
log.error(e.getMessage(), e);
}
return null;
}
/**
* Get the parameterTypes.
*
* @return the parameterTypes.
*/
@Override
public List<String> getParameterTypes()
{
return Collections.unmodifiableList(parameterTypes);
}
/**
* Get the memberName.
*
* @return the memberName.
*/
@Override
public String getMemberName()
{
return memberName;
}
/**
* Get the onMethod.
*
* @return the onMethod.
*/
@Override
public boolean isOnMethod()
{
return onMethod;
}
/**
* Get the onField.
*
* @return the onField.
*/
@Override
public boolean isOnField()
{
return onField;
}
/**
* String representation
* @return The string
*/
@Override
public String toString()
{
StringBuilder sb = new StringBuilder();
sb.append("AnnotationImpl@").append(Integer.toHexString(System.identityHashCode(this)));
sb.append("[className=").append(className);
sb.append(" cl=").append(cl);
sb.append(" parameterTypes=").append(parameterTypes);
sb.append(" memberName=").append(memberName);
sb.append(" onMethod=").append(onMethod);
sb.append(" onField=").append(onField);
sb.append(" annotationClass=").append(annotationClass);
sb.append("]");
return sb.toString();
}
}