/*
* 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.inject.impl;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.lang.annotation.Annotation;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Member;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.lang.reflect.Type;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import javax.decorator.Delegate;
import javax.enterprise.inject.spi.Annotated;
import javax.enterprise.inject.spi.AnnotatedConstructor;
import javax.enterprise.inject.spi.AnnotatedField;
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.InjectionPoint;
import org.apache.webbeans.config.WebBeansContext;
import org.apache.webbeans.event.EventUtil;
import org.apache.webbeans.portable.AnnotatedElementFactory;
import org.apache.webbeans.util.Asserts;
import org.apache.webbeans.util.OwbCustomObjectInputStream;
import org.apache.webbeans.util.WebBeansUtil;
class InjectionPointImpl implements InjectionPoint, Serializable
{
private static final long serialVersionUID = 1047233127758068484L;
private Set<Annotation> qualifierAnnotations = new HashSet<Annotation>();
private Bean<?> ownerBean;
private Member injectionMember;
private Type injectionType;
private Annotated annotated;
private boolean transientt;
private boolean delegate;
InjectionPointImpl(Bean<?> ownerBean, Collection<Annotation> qualifiers, AnnotatedField<?> annotatedField)
{
this(ownerBean, annotatedField.getBaseType(), qualifiers, annotatedField,
annotatedField.getJavaMember(), annotatedField.isAnnotationPresent(Delegate.class),
annotatedField.getJavaMember() == null? false : Modifier.isTransient(annotatedField.getJavaMember().getModifiers()));
}
InjectionPointImpl(Bean<?> ownerBean, Collection<Annotation> qualifiers, AnnotatedParameter<?> parameter)
{
this(ownerBean, parameter.getBaseType(), qualifiers, parameter, parameter.getDeclaringCallable().getJavaMember(), parameter.isAnnotationPresent(Delegate.class), false);
}
/**
* This constructor is used to create a 'virtual' InjectionPoint.
* This is needed if an InjectionPoint was needed during a programmatic lookup.
*/
InjectionPointImpl(Type type, Collection<Annotation> qualifiers)
{
this(null, type, qualifiers, null, null, false, false);
}
private InjectionPointImpl(Bean<?> ownerBean, Type type, Collection<Annotation> qualifiers, Annotated annotated, Member member, boolean delegate, boolean isTransient)
{
if (type == null)
{
throw new IllegalArgumentException("type is null");
}
if (member == null)
{
throw new IllegalArgumentException("member is null");
}
Asserts.assertNotNull(qualifiers, "qualifiers may not be null");
this.ownerBean = ownerBean;
injectionType = type;
qualifierAnnotations = Collections.unmodifiableSet(new HashSet<Annotation>(qualifiers));
this.annotated = annotated;
injectionMember = member;
this.delegate = delegate;
transientt = isTransient;
if(!WebBeansUtil.checkObtainsInjectionPointConditions(this))
{
EventUtil.checkObservableInjectionPointConditions(this);
}
}
@Override
public Bean<?> getBean()
{
return ownerBean;
}
@Override
public Set<Annotation> getQualifiers()
{
return qualifierAnnotations;
}
@Override
public Member getMember()
{
return injectionMember;
}
@Override
public Type getType()
{
return injectionType;
}
@Override
public Annotated getAnnotated()
{
return annotated;
}
@Override
public boolean isDelegate()
{
return delegate;
}
@Override
public boolean isTransient()
{
return transientt;
}
private void writeObject(java.io.ObjectOutputStream op) throws IOException
{
ObjectOutputStream out = new ObjectOutputStream(op);
//Write the owning bean class
out.writeObject(ownerBean.getBeanClass());
Set<Annotation> qualifiers = ownerBean.getQualifiers();
for(Annotation qualifier : qualifiers)
{
out.writeObject(Character.valueOf('-')); // throw-away delimiter so alternating annotations don't get swallowed in the read.
out.writeObject(qualifier);
}
out.writeObject(Character.valueOf('~'));
if(injectionMember instanceof Field)
{
out.writeByte(0);
out.writeUTF(injectionMember.getName());
}
if(injectionMember instanceof Method)
{
out.writeByte(1);
out.writeUTF(injectionMember.getName());
Method method = (Method) injectionMember;
Class<?>[] parameters = method.getParameterTypes();
out.writeObject(parameters);
AnnotatedParameter<?> ap = (AnnotatedParameter<?>) annotated;
out.writeByte(ap.getPosition());
}
if(injectionMember instanceof Constructor)
{
out.writeByte(2);
Constructor<?> constr = (Constructor<?>) injectionMember;
Class<?>[] parameters = constr.getParameterTypes();
out.writeObject(parameters);
AnnotatedParameter<?> ap = (AnnotatedParameter<?>) annotated;
out.writeByte(ap.getPosition());
}
out.writeBoolean(delegate);
out.writeBoolean(transientt);
out.flush();
}
@SuppressWarnings("unchecked")
private void readObject(java.io.ObjectInputStream inp) throws IOException, ClassNotFoundException
{
ObjectInputStream in = new OwbCustomObjectInputStream(inp, WebBeansUtil.getCurrentClassLoader());
Class<?> beanClass = (Class<?>)in.readObject();
Set<Annotation> anns = new HashSet<Annotation>();
WebBeansContext webBeansContext = WebBeansContext.currentInstance();
AnnotatedElementFactory annotatedElementFactory = webBeansContext.getAnnotatedElementFactory();
while(!in.readObject().equals('~')) // read throw-away '-' or '~' terminal delimiter.
{
Annotation ann = (Annotation) in.readObject(); // now read the annotation.
anns.add(ann);
}
//process annotations
ownerBean = webBeansContext.getBeanManagerImpl().getBeans(beanClass, anns.toArray(new Annotation[anns.size()])).iterator().next();
qualifierAnnotations = anns;
// determine type of injection point member (0=field, 1=method, 2=constructor) and read...
int c = in.readByte();
if(c == 0)
{
String fieldName = in.readUTF();
Field field = webBeansContext.getSecurityService().doPrivilegedGetDeclaredField(beanClass, fieldName);
injectionMember = field;
AnnotatedType<?> annotatedType = annotatedElementFactory.newAnnotatedType(beanClass);
annotated = annotatedElementFactory.newAnnotatedField(field, annotatedType);
injectionType = field.getGenericType();
}
else if(c == 1)
{
String methodName = in.readUTF();
Class<?>[] parameters = (Class<?>[])in.readObject();
Method method = webBeansContext.getSecurityService().doPrivilegedGetDeclaredMethod(beanClass, methodName, parameters);
injectionMember = method;
AnnotatedType<?> annotatedType = annotatedElementFactory.newAnnotatedType(beanClass);
AnnotatedMethod<Object> am = (AnnotatedMethod<Object>)annotatedElementFactory.
newAnnotatedMethod((Method) injectionMember,annotatedType);
List<AnnotatedParameter<Object>> annParameters = am.getParameters();
annotated = annParameters.get(in.readByte());
injectionType = annotated.getBaseType();
}
else if(c == 2)
{
Class<?>[] parameters = (Class<?>[])in.readObject();
try
{
injectionMember = beanClass.getConstructor(parameters);
}
catch(NoSuchMethodException e)
{
injectionMember = null;
}
AnnotatedType<Object> annotatedType = (AnnotatedType<Object>)annotatedElementFactory.newAnnotatedType(beanClass);
AnnotatedConstructor<Object> am = annotatedElementFactory
.newAnnotatedConstructor((Constructor<Object>) injectionMember,annotatedType);
List<AnnotatedParameter<Object>> annParameters = am.getParameters();
annotated = annParameters.get(in.readByte());
injectionType = annotated.getBaseType();
}
delegate = in.readBoolean();
transientt = in.readBoolean();
}
public String toString()
{
StringBuilder buffer = new StringBuilder();
if(injectionMember instanceof Constructor)
{
Constructor<?> constructor = (Constructor<?>) injectionMember;
buffer.append("Constructor Injection Point, constructor name : ").append(constructor.getName()).append(", Bean Owner : [").append(ownerBean).append("]");
}
else if(injectionMember instanceof Method)
{
Method method = (Method) injectionMember;
buffer.append("Method Injection Point, method name : ").append(method.getName()).append(", Bean Owner : [").append(ownerBean).append("]");
}
else if(injectionMember instanceof Field)
{
Field field = (Field) injectionMember;
buffer.append("Field Injection Point, field name : ").append(field.getName()).append(", Bean Owner : [").append(ownerBean).append("]");
}
return buffer.toString();
}
}