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    • org.apache.webbeans.container.InjectableBeanManager Maven / Gradle / Ivy

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    /*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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.apache.webbeans.container;

import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.List;
import java.util.Set;

import javax.el.ELResolver;
import javax.el.ExpressionFactory;
import javax.enterprise.context.spi.Context;
import javax.enterprise.context.spi.Contextual;
import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.event.Event;
import javax.enterprise.inject.Instance;
import javax.enterprise.inject.spi.AnnotatedField;
import javax.enterprise.inject.spi.AnnotatedMember;
import javax.enterprise.inject.spi.AnnotatedMethod;
import javax.enterprise.inject.spi.AnnotatedParameter;
import javax.enterprise.inject.spi.AnnotatedType;
import javax.enterprise.inject.spi.Bean;
import javax.enterprise.inject.spi.BeanAttributes;
import javax.enterprise.inject.spi.BeanManager;
import javax.enterprise.inject.spi.Decorator;
import javax.enterprise.inject.spi.Extension;
import javax.enterprise.inject.spi.InjectionPoint;
import javax.enterprise.inject.spi.InjectionTarget;
import javax.enterprise.inject.spi.InjectionTargetFactory;
import javax.enterprise.inject.spi.InterceptionFactory;
import javax.enterprise.inject.spi.InterceptionType;
import javax.enterprise.inject.spi.Interceptor;
import javax.enterprise.inject.spi.ObserverMethod;
import javax.enterprise.inject.spi.ProducerFactory;

import org.apache.webbeans.config.WebBeansContext;

/**
 * 
    This implementation of the {@link BeanManager} will get used
 * for whenever a BeanManager gets injected into a bean:
 * 
     *   private @Inject BeanManager beanManager;
 * 
    
 * 
    
 * This class is Serializable and always resolves the current
 * instance of the central BeanManager automatically.
 */
public class InjectableBeanManager implements BeanManager, Externalizable
{

    private static final long serialVersionUID = 1L;
    
    private transient BeanManagerImpl bm;

    /**
     * Used by serialization.
     */
    public InjectableBeanManager()
    {
        this(WebBeansContext.getInstance().getBeanManagerImpl());
    }

    public InjectableBeanManager(BeanManagerImpl beanManager)
    {
        bm = beanManager;
    }

    @Override
    public  AnnotatedType createAnnotatedType(Class type)
    {
        return bm.createAnnotatedType(type);
    }

    @Override
    public  CreationalContext createCreationalContext(Contextual contextual)
    {
        return bm.createCreationalContext(contextual);
    }

    @Override
    public  InjectionTarget createInjectionTarget(AnnotatedType type)
    {
        return bm.createInjectionTarget(type);
    }

    @Override
    public void fireEvent(Object event, Annotation... qualifiers)
    {
        bm.fireEvent(event, qualifiers);
    }

    @Override
    public Event getEvent()
    {
        return bm.getEvent();
    }

    @Override
    public Set> getBeans(String name)
    {
        checkAfterBeanDiscoveryProcessed("It's not allowed to call getBeans(String) before AfterBeanDiscovery");

        return bm.getBeans(name);
    }

    @Override
    public Set> getBeans(Type beanType, Annotation... qualifiers)
    {
        checkAfterBeanDiscoveryProcessed("It's not allowed to call getBeans(Type, Annotation...) before AfterBeanDiscovery");

        return bm.getBeans(beanType, qualifiers);
    }

    @Override
    public Context getContext(Class scope)
    {
        return bm.getContext(scope);
    }

    @Override
    public Instance createInstance()
    {
        checkAfterDeploymentValidationFired("It's not allowed to call createInstance() before AfterDeploymentValidation");
        return bm.createInstance();
    }

    @Override
    public ELResolver getELResolver()
    {
        return bm.getELResolver();
    }

    @Override
    public Object getInjectableReference(InjectionPoint injectionPoint, CreationalContext ctx)
    {
        checkAfterDeploymentValidationFired("It's not allowed to call getInjectableReference(InjectionPoin, CreationalContext) before AfterDeploymentValidation");

        return bm.getInjectableReference(injectionPoint, ctx);
    }

    @Override
    public Set getInterceptorBindingDefinition(Class qualifier)
    {
        return bm.getInterceptorBindingDefinition(qualifier);
    }

    @Override
    public Bean getPassivationCapableBean(String id)
    {
        checkAfterBeanDiscoveryProcessed("It's not allowed to call getPassivationCapableBean(String) before AfterBeanDiscovery");

        return bm.getPassivationCapableBean(id);
    }

    @Override
    public Object getReference(Bean bean, Type beanType, CreationalContext ctx)
    {
        checkAfterDeploymentValidationFired("It's not allowed to call getReference(Bean, Type, CreationalContext) before AfterDeploymentValidation");

        return bm.getReference(bean, beanType, ctx);
    }

    @Override
    public Set getStereotypeDefinition(Class stereotype)
    {
        return bm.getStereotypeDefinition(stereotype);
    }

    @Override
    public boolean isInterceptorBinding(Class annotationType)
    {
        return bm.isInterceptorBinding(annotationType);
    }

    @Override
    public boolean isNormalScope(Class annotationType)
    {
        return bm.isNormalScope(annotationType);
    }

    @Override
    public boolean isPassivatingScope(Class annotationType)
    {
        return bm.isPassivatingScope(annotationType);
    }

    @Override
    public boolean isQualifier(Class annotationType)
    {
        return bm.isQualifier(annotationType);
    }

    @Override
    public boolean isScope(Class annotationType)
    {
        return bm.isScope(annotationType);
    }

    @Override
    public boolean isStereotype(Class annotationType)
    {
        return bm.isStereotype(annotationType);
    }

    @Override
    public  Bean resolve(Set> beans)
    {
        checkAfterBeanDiscoveryProcessed("It's not allowed to call resolve(Set) before AfterBeanDiscovery");

        return bm.resolve(beans);
    }

    @Override
    public  InterceptionFactory createInterceptionFactory(CreationalContext creationalContext, Class aClass)
    {
        return bm.createInterceptionFactory(creationalContext, aClass);
    }

    @Override
    public List> resolveDecorators(Set types, Annotation... qualifiers)
    {
        checkAfterBeanDiscoveryProcessed("It's not allowed to call resolveDecorators(Set, Annotation...) before AfterBeanDiscovery");

        return bm.resolveDecorators(types, qualifiers);
    }

    @Override
    public List> resolveInterceptors(InterceptionType type, Annotation... interceptorBindings)
    {
        checkAfterBeanDiscoveryProcessed("It's not allowed to call resolveInterceptors(InterceptionType, Annotation...) before AfterBeanDiscovery");

        return bm.resolveInterceptors(type, interceptorBindings);
    }

    @Override
    public  Set> resolveObserverMethods(T event, Annotation... qualifiers)
    {
        checkAfterBeanDiscoveryProcessed("It's not allowed to call resolveObserverMethods(Object, Annotation...) before AfterBeanDiscovery");

        return bm.resolveObserverMethods(event, qualifiers);
    }

    @Override
    public void validate(InjectionPoint injectionPoint)
    {
        checkAfterBeanDiscoveryProcessed("It's not allowed to call validate(InjectionPoint) before AfterBeanDiscovery");

        bm.validate(injectionPoint);
    }

    @Override
    public ExpressionFactory wrapExpressionFactory(ExpressionFactory expressionFactory)
    {
        return bm.wrapExpressionFactory(expressionFactory);
    }

    @Override
    public boolean areQualifiersEquivalent(Annotation qualifier1, Annotation qualifier2)
    {
        return bm.areQualifiersEquivalent(qualifier1, qualifier2);
    }

    @Override
    public int getQualifierHashCode(Annotation qualifier)
    {
        return bm.getQualifierHashCode(qualifier);
    }

    @Override
    public boolean areInterceptorBindingsEquivalent(Annotation interceptorBinding1, Annotation interceptorBinding2)
    {
        return bm.areInterceptorBindingsEquivalent(interceptorBinding1, interceptorBinding2);
    }

    @Override
    public int getInterceptorBindingHashCode(Annotation interceptorBinding)
    {
        return bm.getInterceptorBindingHashCode(interceptorBinding);
    }

    @Override
    public InjectionPoint createInjectionPoint(AnnotatedField field)
    {
        return bm.createInjectionPoint(field);
    }

    @Override
    public InjectionPoint createInjectionPoint(AnnotatedParameter parameter)
    {
        return bm.createInjectionPoint(parameter);
    }

    @Override
    public  InjectionTargetFactory getInjectionTargetFactory(AnnotatedType type)
    {
        return bm.getInjectionTargetFactory(type);
    }

    @Override
    public  ProducerFactory getProducerFactory(AnnotatedField field, Bean declaringBean)
    {
        return bm.getProducerFactory(field, declaringBean);
    }

    @Override
    public  ProducerFactory getProducerFactory(AnnotatedMethod method, Bean declaringBean)
    {
        return bm.getProducerFactory(method, declaringBean);
    }

    @Override
    public  BeanAttributes createBeanAttributes(AnnotatedType type)
    {
        return bm.createBeanAttributes(type);
    }

    @Override
    public BeanAttributes createBeanAttributes(AnnotatedMember member)
    {
        return bm.createBeanAttributes(member);
    }

    @Override
    public  Bean createBean(BeanAttributes attributes, Class beanClass, InjectionTargetFactory injectionTargetFactory)
    {
        return bm.createBean(attributes, beanClass, injectionTargetFactory);
    }

    @Override
    public  Bean createBean(BeanAttributes attributes, Class beanClass, ProducerFactory producerFactory)
    {
        return bm.createBean(attributes, beanClass, producerFactory);
    }

    @Override
    public  T getExtension(Class extensionClass)
    {
        return bm.getExtension(extensionClass);
    }

    @Override
    public void writeExternal(ObjectOutput out) throws IOException
    {    
    }

    @Override
    public void readExternal(ObjectInput in) throws IOException,
            ClassNotFoundException 
    {
        //static lookup required for bean manager
        bm = WebBeansContext.currentInstance().getBeanManagerImpl();
    }

    @Override
    public int hashCode()
    {
        int prime = 31;
        int result = 1;
        result = prime * result + ((bm == null) ? 0 : System.identityHashCode(bm));
        return result;
    }

    @Override
    public boolean equals(Object obj)
    {
        if (this == obj)
        {
            return true;   
        }
        if (obj == null)
        {
            return false;   
        }
        if (getClass() != obj.getClass())
        {
            return false;   
        }
        
        InjectableBeanManager other = (InjectableBeanManager) obj;
        if (bm == null)
        {
            if (other.bm != null)
            {
                return false;   
            }
        }
        else if (System.identityHashCode(bm) != (System.identityHashCode(other.bm)))
        {
            return false;   
        }
        
        return true;
    }


    /**
     * @throws IllegalStateException if {@link javax.enterprise.inject.spi.AfterBeanDiscovery}
     */
    private void checkAfterBeanDiscoveryProcessed(String message)
    {
        if (!bm.isAfterBeanDiscoveryDone() && !bm.isAfterBeanDiscovery())
        {
            throw new IllegalStateException(message);
        }
    }

    /**
     * @throws IllegalStateException if {@link javax.enterprise.inject.spi.AfterDeploymentValidation}
     */
    private void checkAfterDeploymentValidationFired(String message)
    {
        if (!bm.isAfterDeploymentValidationFired())
        {
            throw new IllegalStateException(message);
        }
    }

}
    
    
    
    

    




    
    
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