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* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt 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.aop.microcontainer.integration;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.Map.Entry;
import org.jboss.aop.Advisor;
import org.jboss.aop.AspectManager;
import org.jboss.aop.ReflectiveAspectBinder;
import org.jboss.aop.advice.AspectDefinition;
import org.jboss.aop.microcontainer.beans.AspectManagerFactory;
import org.jboss.aop.microcontainer.beans.ManagedAspectDefinition;
import org.jboss.aop.microcontainer.lifecycle.LifecycleCallbackDefinition;
import org.jboss.aop.proxy.container.ContainerCache;
import org.jboss.aop.util.Advisable;
import org.jboss.aop.util.ClassInfoMethodHashing;
import org.jboss.beans.info.spi.BeanInfo;
import org.jboss.beans.metadata.api.annotations.Dependency;
import org.jboss.dependency.spi.ControllerState;
import org.jboss.kernel.spi.dependency.DependencyBuilderListItem;
import org.jboss.kernel.spi.dependency.helpers.AbstractDependencyBuilder;
import org.jboss.metadata.spi.MetaData;
import org.jboss.metadata.spi.signature.MethodSignature;
import org.jboss.reflect.plugins.AnnotationValueFactory;
import org.jboss.reflect.plugins.introspection.IntrospectionAnnotationHelper;
import org.jboss.reflect.spi.AnnotationInfo;
import org.jboss.reflect.spi.AnnotationValue;
import org.jboss.reflect.spi.ArrayInfo;
import org.jboss.reflect.spi.ArrayValue;
import org.jboss.reflect.spi.ClassInfo;
import org.jboss.reflect.spi.MethodInfo;
import org.jboss.reflect.spi.StringValue;
import org.jboss.reflect.spi.TypeInfo;
import org.jboss.reflect.spi.Value;
/**
* Finds all managed aspects that apply
* to the bean and includes their dependencies as dependencies of the bean
*
* @author Kabir Khan
* @author Adrian Brock
* @version $Revision: 76110 $
*/
public class AOPDependencyBuilder extends AbstractDependencyBuilder
{
private static final String DEPENDENCY_CLASS_NAME = Dependency.class.getName();
private static final String DEPENDENCY_NAME_ATTRIBUTE = "name";
private static final IntrospectionAnnotationHelper helper = new IntrospectionAnnotationHelper();
@SuppressWarnings({"unchecked", "deprecation"})
@Override
public List getDependencies(BeanInfo beanInfo, MetaData metaData)
{
AspectManager manager = AspectManagerFactory.getAspectManager(metaData);
try
{
ClassInfo classInfo = beanInfo.getClassInfo();
String className = classInfo.getName();
if (className != null)
{
ClassLoader loader = classInfo.getType().getClassLoader();
if (loader == null)
{
loader = Thread.currentThread().getContextClassLoader();
}
Class clazz = loader.loadClass(className);
Advisor advisor;
synchronized (ContainerCache.mapLock)
{
ContainerCache cache = ContainerCache.initialise(manager, clazz, metaData, true);
advisor = cache.getAdvisor();
}
ReflectiveAspectBinder binder = new ReflectiveAspectBinder(clazz, advisor);
Set aspects = binder.getAspects();
ArrayList depends = new ArrayList();
if (aspects != null && aspects.size() > 0)
{
Iterator it = aspects.iterator();
while (it.hasNext())
{
AspectDefinition def = (AspectDefinition) it.next();
if (def instanceof ManagedAspectDefinition)
{
String name = ((ManagedAspectDefinition)def).getDependentAspectName();
if (name != null)
{
depends.add(new AspectDependencyBuilderListItem(name));
}
}
}
}
Map> lifecycleCallbacks = binder.getLifecycleCallbacks();
if (lifecycleCallbacks != null && lifecycleCallbacks.size() > 0)
{
for (Entry> states : lifecycleCallbacks.entrySet())
{
for (LifecycleCallbackDefinition callback : states.getValue())
{
depends.add(new LifecycleAspectDependencyBuilderListItem(
callback.getBean(), (ControllerState)states.getKey(), callback.getInstallMethod(), callback.getUninstallMethod()));
}
}
}
HashSet annotationDependencies = getAnnotationDependencies(classInfo, metaData);
for (String dependency : annotationDependencies)
{
depends.add(new AnnotationDependencyBuilderListItem(dependency));
}
return depends;
}
return null;
}
catch (ClassNotFoundException e)
{
throw new RuntimeException(e);
}
}
private HashSet getAnnotationDependencies(ClassInfo classInfo, MetaData metaData)
{
try
{
HashSet dependencies = new LinkedHashSet();
getClassAnnotationDependencies(classInfo, metaData, dependencies);
getMethodAnnotationDependencies(classInfo, metaData, dependencies);
return dependencies;
}
catch (RuntimeException e)
{
throw e;
}
catch (Exception e)
{
throw new RuntimeException(e);
}
}
private void getClassAnnotationDependencies(ClassInfo classInfo, MetaData metaData, HashSet dependencies) throws Exception
{
HashMap> realMap = new LinkedHashMap>();
getRealClassAnnotationDependencies(classInfo, realMap);
HashMap> metaMap = new LinkedHashMap>();
getMetaDataClassAnnotationDependencies(metaData, metaMap);
addAllDependenciesToSet(dependencies, realMap, metaMap);
}
private void getRealClassAnnotationDependencies(ClassInfo classInfo, HashMap> dependencies) throws Exception
{
AnnotationValue[] annotations = classInfo.getAnnotations();
for (int i = 0 ; i < annotations.length ; i++)
{
getDependenciesForAnnotation(annotations[i].getType().getName(), annotations[i], dependencies);
}
}
private void getMetaDataClassAnnotationDependencies(MetaData metaData, HashMap> dependencies) throws Exception
{
if (metaData != null)
{
for (Object annotation : metaData.getAnnotations())
{
getDependenciesForMetaDataAnnotation(annotation, dependencies);
}
}
}
@SuppressWarnings("unchecked")
private void getMethodAnnotationDependencies(ClassInfo classInfo, MetaData metaData, HashSet dependencies) throws Exception
{
Map methodMap = ClassInfoMethodHashing.getMethodMap(classInfo);
if (methodMap != null)
{
for (Iterator it = methodMap.values().iterator() ; it.hasNext() ; )
{
MethodInfo method = (MethodInfo)it.next();
if (Advisable.isAdvisableMethod(method.getModifiers(), method.getName()))
{
HashMap> classMap = new LinkedHashMap>();
getRealMethodAnnotationDependencies(method, classMap);
HashMap> overrideMap = new LinkedHashMap>();
getMetaDataMethodAnnotationDependencies(method, metaData, overrideMap);
addAllDependenciesToSet(dependencies, classMap, overrideMap);
}
}
}
}
private void getRealMethodAnnotationDependencies(MethodInfo methodInfo, HashMap> dependencies) throws Exception
{
AnnotationValue[] annotations = methodInfo.getAnnotations();
if (annotations != null)
{
for (int i = 0 ; i < annotations.length ; i++)
{
getDependenciesForAnnotation(annotations[i].getType().getName(), annotations[i], dependencies);
}
}
}
private void getMetaDataMethodAnnotationDependencies(MethodInfo method, MetaData metaData, HashMap> dependencies) throws Exception
{
if (metaData != null)
{
MetaData methodMetaData = metaData.getComponentMetaData(new MethodSignature(method));
if (methodMetaData != null)
{
for (Object annotation : methodMetaData.getAnnotations())
{
getDependenciesForMetaDataAnnotation(annotation, dependencies);
}
}
}
}
private void getDependenciesForMetaDataAnnotation(Object annotation, HashMap> dependencies) throws Exception
{
AnnotationInfo info;
Class clazz = annotation.getClass().getInterfaces()[0];
try
{
info = (AnnotationInfo)helper.getTypeInfo(clazz);
}
catch (RuntimeException e)
{
// AutoGenerated
throw new RuntimeException("Error creating annotation for " + clazz.getName(), e);
}
AnnotationValue value = AnnotationValueFactory.createAnnotationValue(helper, helper, info, annotation);
getDependenciesForAnnotation(info.getName(), value, dependencies);
}
private void getDependenciesForAnnotation(String topLevelAnnotationName, AnnotationValue annotation, HashMap> dependencies)
{
if (annotation != null)
{
addAnnotationAttributeDependencies(topLevelAnnotationName, annotation, dependencies);
AnnotationValue[] annotationAnnotations = annotation.getAnnotationType().getAnnotations();
for (int i = 0 ; i < annotationAnnotations.length ; i++)
{
if (annotationAnnotations[i].getAnnotationType().getName().equals(DEPENDENCY_CLASS_NAME))
{
StringValue value = (StringValue)annotationAnnotations[i].getValue(DEPENDENCY_NAME_ATTRIBUTE);
StringValue dependency = (StringValue)annotation.getValue(value.getValue());
addDependency(topLevelAnnotationName, dependency, dependencies);
}
}
}
}
private void addAnnotationAttributeDependencies(String topLevelAnnotationName, AnnotationValue annotation, HashMap> dependencies)
{
MethodInfo[] attributes = annotation.getAnnotationType().getDeclaredMethods();
if (attributes != null)
{
for (int i = 0 ; i < attributes.length ; i++)
{
Value value = annotation.getValue(attributes[i].getName());
if (value instanceof AnnotationValue)
{
getDependenciesForAnnotation(topLevelAnnotationName, (AnnotationValue)value, dependencies);
}
else if (value instanceof ArrayValue)
{
ArrayValue arrVal = (ArrayValue)value;
TypeInfo type = ((ArrayInfo)arrVal.getType()).getComponentType();
if (type instanceof AnnotationInfo)
{
Value[] values = arrVal.getValues();
for (int j = 0 ; j < values.length ; j++)
{
getDependenciesForAnnotation(topLevelAnnotationName, (AnnotationValue)values[j], dependencies);
}
}
}
}
}
}
private void addDependency(String topLevelAnnotationName, StringValue dependency, HashMap> dependencies)
{
ArrayList list = dependencies.get(topLevelAnnotationName);
if (list == null)
{
list = new ArrayList();
dependencies.put(topLevelAnnotationName, list);
}
list.add(dependency.getValue());
}
private void addAllDependenciesToSet(HashSet dependencies, HashMap> classMap, HashMap> overrideMap)
{
HashMap> dependencyMap = mergeClassAndOverrideMaps(classMap, overrideMap);
if (dependencyMap.size() > 0)
{
for (ArrayList deps : dependencyMap.values())
{
dependencies.addAll(deps);
}
}
}
private HashMap> mergeClassAndOverrideMaps(HashMap> classMap, HashMap> overrideMap)
{
if (classMap.size() == 0 && overrideMap.size() == 0)
{
return classMap;
}
if (classMap.size() > 0 && overrideMap.size() == 0)
{
return classMap;
}
if (classMap.size() == 0 && overrideMap.size() > 0)
{
return overrideMap;
}
for (String key : overrideMap.keySet())
{
classMap.put(key, overrideMap.get(key));
}
return classMap;
}
}
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