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/*
* JBoss, Home of Professional Open Source
* Copyright 2008, 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.bean;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.Collections;
import java.util.Set;
import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.event.Observes;
import javax.enterprise.inject.Disposes;
import javax.enterprise.inject.Produces;
import javax.enterprise.inject.Specializes;
import javax.enterprise.inject.spi.AnnotatedMethod;
import javax.enterprise.inject.spi.AnnotatedParameter;
import javax.enterprise.inject.spi.Bean;
import javax.enterprise.inject.spi.Decorator;
import javax.enterprise.inject.spi.InjectionPoint;
import javax.enterprise.inject.spi.Interceptor;
import javax.inject.Inject;
import javax.inject.Qualifier;
import org.jboss.weld.annotated.enhanced.EnhancedAnnotatedMethod;
import org.jboss.weld.annotated.enhanced.EnhancedAnnotatedParameter;
import org.jboss.weld.annotated.enhanced.MethodSignature;
import org.jboss.weld.bootstrap.Validator;
import org.jboss.weld.injection.InjectionPointFactory;
import org.jboss.weld.injection.MethodInjectionPoint;
import org.jboss.weld.injection.MethodInjectionPoint.MethodInjectionPointType;
import org.jboss.weld.injection.MethodInvocationStrategy;
import org.jboss.weld.injection.ParameterInjectionPoint;
import org.jboss.weld.literal.DefaultLiteral;
import org.jboss.weld.logging.BeanLogger;
import org.jboss.weld.manager.BeanManagerImpl;
import org.jboss.weld.metadata.cache.MetaAnnotationStore;
import org.jboss.weld.resolution.QualifierInstance;
import org.jboss.weld.util.reflection.Formats;
import org.jboss.weld.util.reflection.Reflections;
public class DisposalMethod {
private static final String DISPOSER_ANNOTATION = "@Disposes";
private final BeanManagerImpl beanManager;
private final AbstractClassBean declaringBean;
private final MethodInjectionPoint disposalMethodInjectionPoint;
private final AnnotatedParameter disposesParameter;
private final Set requiredQualifiers;
private final MethodInvocationStrategy invocationStrategy;
public static DisposalMethod of(BeanManagerImpl manager, EnhancedAnnotatedMethod method, AbstractClassBean declaringBean) {
return new DisposalMethod(manager, method, declaringBean);
}
protected DisposalMethod(BeanManagerImpl beanManager, EnhancedAnnotatedMethod enhancedAnnotatedMethod, AbstractClassBean declaringBean) {
this.disposalMethodInjectionPoint = InjectionPointFactory.instance().createMethodInjectionPoint(MethodInjectionPointType.DISPOSER, enhancedAnnotatedMethod, declaringBean, declaringBean.getBeanClass(), Disposes.class, beanManager);
this.beanManager = beanManager;
this.declaringBean = declaringBean;
EnhancedAnnotatedParameter enhancedDisposesParameter = getEnhancedDisposesParameter(enhancedAnnotatedMethod);
this.disposesParameter = enhancedDisposesParameter.slim();
this.requiredQualifiers = getRequiredQualifiers(enhancedDisposesParameter);
checkDisposalMethod(enhancedAnnotatedMethod, declaringBean);
this.invocationStrategy = MethodInvocationStrategy.forDisposer(disposalMethodInjectionPoint, beanManager);
}
private EnhancedAnnotatedParameter getEnhancedDisposesParameter(EnhancedAnnotatedMethod enhancedAnnotatedMethod) {
return enhancedAnnotatedMethod.getEnhancedParameters(Disposes.class).get(0);
}
public AnnotatedParameter getDisposesParameter() {
return disposesParameter;
}
public AnnotatedMethod getAnnotated() {
return disposalMethodInjectionPoint.getAnnotated();
}
public void invokeDisposeMethod(Object receiver, Object instance, CreationalContext creationalContext) {
invocationStrategy.invoke(receiver, disposalMethodInjectionPoint, instance, beanManager, creationalContext);
}
private void checkDisposalMethod(EnhancedAnnotatedMethod enhancedAnnotatedMethod, AbstractClassBean declaringBean) {
if (enhancedAnnotatedMethod.getEnhancedParameters(Disposes.class).size() > 1) {
throw BeanLogger.LOG
.multipleDisposeParams(disposalMethodInjectionPoint, Formats.formatAsStackTraceElement(enhancedAnnotatedMethod.getJavaMember()));
}
if (enhancedAnnotatedMethod.getEnhancedParameters(Observes.class).size() > 0) {
throw BeanLogger.LOG.inconsistentAnnotationsOnMethod("@Observes", DISPOSER_ANNOTATION, disposalMethodInjectionPoint,
Formats.formatAsStackTraceElement(enhancedAnnotatedMethod.getJavaMember()));
}
if (enhancedAnnotatedMethod.getAnnotation(Inject.class) != null) {
throw BeanLogger.LOG.inconsistentAnnotationsOnMethod("@Inject", DISPOSER_ANNOTATION, disposalMethodInjectionPoint,
Formats.formatAsStackTraceElement(enhancedAnnotatedMethod.getJavaMember()));
}
if (enhancedAnnotatedMethod.getAnnotation(Produces.class) != null) {
throw BeanLogger.LOG.inconsistentAnnotationsOnMethod("@Produces", DISPOSER_ANNOTATION, disposalMethodInjectionPoint,
Formats.formatAsStackTraceElement(enhancedAnnotatedMethod.getJavaMember()));
}
if (enhancedAnnotatedMethod.getAnnotation(Specializes.class) != null) {
throw BeanLogger.LOG.inconsistentAnnotationsOnMethod("@Specialized", DISPOSER_ANNOTATION, disposalMethodInjectionPoint,
Formats.formatAsStackTraceElement(enhancedAnnotatedMethod.getJavaMember()));
}
if (declaringBean instanceof SessionBean) {
SessionBean sessionBean = (SessionBean) declaringBean;
Set businessMethodSignatures = sessionBean.getBusinessMethodSignatures();
if (!businessMethodSignatures.contains(enhancedAnnotatedMethod.getSignature())) {
throw BeanLogger.LOG.methodNotBusinessMethod("Disposer", enhancedAnnotatedMethod, declaringBean,
Formats.formatAsStackTraceElement(enhancedAnnotatedMethod.getJavaMember()));
}
}
for (ParameterInjectionPoint ip : disposalMethodInjectionPoint.getParameterInjectionPoints()) {
Class rawType = Reflections.getRawType(ip.getType());
if (Bean.class.equals(rawType) || Interceptor.class.equals(rawType) || Decorator.class.equals(rawType)) {
Validator.checkBeanMetadataInjectionPoint(this, ip, getDisposesParameter().getBaseType());
}
}
}
public Type getGenericType() {
return getDisposesParameter().getBaseType();
}
public Set getRequiredQualifiers() {
return requiredQualifiers;
}
public AbstractClassBean getDeclaringBean() {
return declaringBean;
}
@Override
public String toString() {
return "Disposer method [" + getDisposesParameter().getDeclaringCallable() + "]";
}
public Set getInjectionPoints() {
return disposalMethodInjectionPoint.getInjectionPoints();
}
/**
* A disposer method is bound to a producer if the producer is assignable to the disposed parameter.
*
* @param enhancedDisposedParameter
* @return the set of required qualifiers for the given disposed parameter
*/
private Set getRequiredQualifiers(EnhancedAnnotatedParameter enhancedDisposedParameter) {
Set disposedParameterQualifiers = enhancedDisposedParameter.getMetaAnnotations(Qualifier.class);
if (disposedParameterQualifiers.isEmpty()) {
disposedParameterQualifiers = Collections. singleton(DefaultLiteral.INSTANCE);
}
return beanManager.getServices().get(MetaAnnotationStore.class).getQualifierInstances(disposedParameterQualifiers);
}
}
