/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can obtain
* a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
* identifying information: "Portions Copyrighted [year]
* [name of copyright owner]"
*
* Contributor(s):
*
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.enterprise.deployment.annotation.handlers;
import java.lang.annotation.Annotation;
import java.lang.annotation.ElementType;
import java.lang.reflect.AnnotatedElement;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.logging.Level;
import javax.persistence.PersistenceUnit;
import com.sun.enterprise.deployment.EntityManagerFactoryReferenceDescriptor;
import com.sun.enterprise.deployment.InjectionTarget;
import com.sun.enterprise.deployment.annotation.AnnotatedElementHandler;
import com.sun.enterprise.deployment.annotation.AnnotationInfo;
import com.sun.enterprise.deployment.annotation.AnnotationProcessorException;
import com.sun.enterprise.deployment.annotation.HandlerProcessingResult;
import com.sun.enterprise.deployment.annotation.context.ResourceContainerContext;
import com.sun.enterprise.deployment.annotation.impl.AnnotationUtils;
/**
* This handler is responsible for handling the
* javax.persistence.PersistenceUnit annotation.
*
*/
public class EntityManagerFactoryReferenceHandler
extends AbstractResourceHandler {
public EntityManagerFactoryReferenceHandler() {
}
/**
* @return the annoation type this annotation handler is handling
*/
public Class<? extends Annotation> getAnnotationType() {
return PersistenceUnit.class;
}
/**
* Process a particular annotation which type is the same as the
* one returned by @see getAnnotationType(). All information
* pertinent to the annotation and its context is encapsulated
* in the passed AnnotationInfo instance.
*
* @param ainfo the annotation information
* @param rcContexts an array of ResourceContainerContext
* @param HandlerProcessingResult
*/
protected HandlerProcessingResult processAnnotation(AnnotationInfo ainfo,
ResourceContainerContext[] rcContexts)
throws AnnotationProcessorException {
PersistenceUnit emfRefAn = (PersistenceUnit)ainfo.getAnnotation();
return processEmfRef(ainfo, rcContexts, emfRefAn);
}
/**
* Process a particular annotation which type is the same as the
* one returned by @see getAnnotationType(). All information
* pertinent to the annotation and its context is encapsulated
* in the passed AnnotationInfo instance.
*
*/
protected HandlerProcessingResult processEmfRef(AnnotationInfo ainfo,
ResourceContainerContext[] rcContexts, PersistenceUnit emfRefAn)
throws AnnotationProcessorException {
EntityManagerFactoryReferenceDescriptor emfRefs[] = null;
if (ElementType.FIELD.equals(ainfo.getElementType())) {
Field f = (Field)ainfo.getAnnotatedElement();
String targetClassName = f.getDeclaringClass().getName();
String logicalName = emfRefAn.name();
// applying with default
if (logicalName.equals("")) {
logicalName = targetClassName + "/" + f.getName();
}
emfRefs = getEmfReferenceDescriptors(logicalName, rcContexts);
InjectionTarget target = new InjectionTarget();
target.setFieldName(f.getName());
target.setClassName(targetClassName);
for (EntityManagerFactoryReferenceDescriptor emfRef : emfRefs) {
emfRef.addInjectionTarget(target);
if (emfRef.getName().length() == 0) { // a new one
processNewEmfRefAnnotation(emfRef, logicalName, emfRefAn);
}
}
} else if (ElementType.METHOD.equals(ainfo.getElementType())) {
Method m = (Method)ainfo.getAnnotatedElement();
String targetClassName = m.getDeclaringClass().getName();
String logicalName = emfRefAn.name();
if( logicalName.equals("") ) {
// Derive javabean property name.
String propertyName =
getInjectionMethodPropertyName(m, ainfo);
// prefixing with fully qualified type name
logicalName = targetClassName + "/" + propertyName;
}
validateInjectionMethod(m, ainfo);
emfRefs = getEmfReferenceDescriptors(logicalName, rcContexts);
InjectionTarget target = new InjectionTarget();
target.setMethodName(m.getName());
target.setClassName(targetClassName);
for (EntityManagerFactoryReferenceDescriptor emfRef : emfRefs) {
emfRef.addInjectionTarget(target);
if (emfRef.getName().length() == 0) { // a new one
processNewEmfRefAnnotation(emfRef, logicalName, emfRefAn);
}
}
} else if( ElementType.TYPE.equals(ainfo.getElementType()) ) {
// name() is required for TYPE-level usage
String logicalName = emfRefAn.name();
if( "".equals(logicalName) ) {
Class c = (Class) ainfo.getAnnotatedElement();
log(Level.SEVERE, ainfo,
localStrings.getLocalString(
"enterprise.deployment.annotation.handlers.nonametypelevel",
"TYPE-Level annotation symbol on class must specify name."));
return getDefaultFailedResult();
}
emfRefs = getEmfReferenceDescriptors(logicalName, rcContexts);
for (EntityManagerFactoryReferenceDescriptor emfRef : emfRefs) {
if (emfRef.getName().length() == 0) { // a new one
processNewEmfRefAnnotation(emfRef, logicalName, emfRefAn);
}
}
}
return getDefaultProcessedResult();
}
/**
* Return EntityManagerFactoryReferenceDescriptors with given name
* if exists or a new one without name being set.
*/
private EntityManagerFactoryReferenceDescriptor[]
getEmfReferenceDescriptors(String logicalName,
ResourceContainerContext[] rcContexts) {
EntityManagerFactoryReferenceDescriptor emfRefs[] =
new EntityManagerFactoryReferenceDescriptor[rcContexts.length];
for (int i = 0; i < rcContexts.length; i++) {
EntityManagerFactoryReferenceDescriptor emfRef =
(EntityManagerFactoryReferenceDescriptor)rcContexts[i].
getEntityManagerFactoryReference(logicalName);
if (emfRef == null) {
emfRef = new EntityManagerFactoryReferenceDescriptor();
rcContexts[i].addEntityManagerFactoryReferenceDescriptor
(emfRef);
}
emfRefs[i] = emfRef;
}
return emfRefs;
}
private void processNewEmfRefAnnotation
(EntityManagerFactoryReferenceDescriptor emfRef,
String logicalName, PersistenceUnit annotation) {
emfRef.setName(logicalName);
if( !(annotation.unitName().equals("")) ) {
emfRef.setUnitName(annotation.unitName());
}
}
}
|
