/*
* 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.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.ArrayList;
import java.util.List;
import javax.decorator.Delegate;
import javax.enterprise.event.Observes;
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 javax.inject.Named;
import org.apache.webbeans.annotation.NamedLiteral;
import org.apache.webbeans.config.WebBeansContext;
import org.apache.webbeans.portable.AnnotatedElementFactory;
import org.apache.webbeans.util.AnnotationUtil;
import org.apache.webbeans.util.Asserts;
public class InjectionPointFactory
{
private final WebBeansContext webBeansContext;
public InjectionPointFactory(WebBeansContext webBeansContext)
{
this.webBeansContext = webBeansContext;
}
public InjectionPoint getFieldInjectionPointData(Bean<?> owner, Field member)
{
Asserts.assertNotNull(owner, "owner parameter can not be null");
Asserts.assertNotNull(member, "member parameter can not be null");
Annotation[] annots = null;
annots = member.getAnnotations();
AnnotatedElementFactory annotatedElementFactory = webBeansContext.getAnnotatedElementFactory();
AnnotatedType<?> annotated = annotatedElementFactory.newAnnotatedType(member.getDeclaringClass());
return getGenericInjectionPoint(owner, annots, member.getGenericType(), member, annotatedElementFactory.newAnnotatedField(member, annotated));
}
public <X> InjectionPoint getFieldInjectionPointData(Bean<?> owner, AnnotatedField<X> annotField)
{
Asserts.assertNotNull(owner, "owner parameter can not be null");
Asserts.assertNotNull(annotField, "annotField parameter can not be null");
Field member = annotField.getJavaMember();
Annotation[] annots = AnnotationUtil.getAnnotationsFromSet(annotField.getAnnotations());
return getGenericInjectionPoint(owner, annots, annotField.getBaseType(), member, annotField);
}
/**
* Gets injected point instance.
* @param owner owner of the injection point
* @param annots annotations of the injection point
* @param type type of the injection point
* @param member member of the injection point
* @param annotated annotated instance of injection point
* @return injection point instance
*/
private InjectionPoint getGenericInjectionPoint(Bean<?> owner, Annotation[] annots, Type type, Member member,Annotated annotated)
{
InjectionPointImpl injectionPoint;
Annotation[] qualifierAnnots = webBeansContext.getAnnotationManager().getQualifierAnnotations(annots);
//@Named update for injection fields!
if(member instanceof Field)
{
for(int i=0; i < qualifierAnnots.length; i++)
{
Annotation qualifier = qualifierAnnots[i];
if(qualifier.annotationType().equals(Named.class))
{
Named named = (Named)qualifier;
String value = named.value();
if(value == null || value.equals(""))
{
NamedLiteral namedLiteral = new NamedLiteral();
namedLiteral.setValue(member.getName());
qualifierAnnots[i] = namedLiteral;
}
break;
}
}
}
injectionPoint = new InjectionPointImpl(owner, type, member, annotated);
if(AnnotationUtil.hasAnnotation(annots, Delegate.class))
{
injectionPoint.setDelegate(true);
}
if(Modifier.isTransient(member.getModifiers()))
{
injectionPoint.setTransient(true);
}
addAnnotation(injectionPoint, qualifierAnnots, true);
return injectionPoint;
}
@SuppressWarnings("unchecked")
public List<InjectionPoint> getMethodInjectionPointData(Bean<?> owner, Method member)
{
Asserts.assertNotNull(owner, "owner parameter can not be null");
Asserts.assertNotNull(member, "member parameter can not be null");
List<InjectionPoint> lists = new ArrayList<InjectionPoint>();
AnnotatedElementFactory annotatedElementFactory = webBeansContext.getAnnotatedElementFactory();
AnnotatedType<?> annotated = annotatedElementFactory.newAnnotatedType(member.getDeclaringClass());
AnnotatedMethod method = annotatedElementFactory.newAnnotatedMethod(member, annotated);
List<AnnotatedParameter<?>> parameters = method.getParameters();
InjectionPoint point = null;
for(AnnotatedParameter<?> parameter : parameters)
{
//@Observes is not injection point type for method parameters
if(parameter.getAnnotation(Observes.class) == null)
{
point = getGenericInjectionPoint(owner, parameter.getAnnotations().toArray(new Annotation[parameter.getAnnotations().size()]),
parameter.getBaseType(), member , parameter);
lists.add(point);
}
}
return lists;
}
public <X> List<InjectionPoint> getMethodInjectionPointData(Bean<?> owner, AnnotatedMethod<X> method)
{
Asserts.assertNotNull(owner, "owner parameter can not be null");
Asserts.assertNotNull(method, "method parameter can not be null");
List<InjectionPoint> lists = new ArrayList<InjectionPoint>();
List<AnnotatedParameter<X>> parameters = method.getParameters();
InjectionPoint point = null;
for(AnnotatedParameter<?> parameter : parameters)
{
//@Observes is not injection point type for method parameters
if(parameter.getAnnotation(Observes.class) == null)
{
point = getGenericInjectionPoint(owner, parameter.getAnnotations().toArray(new Annotation[parameter.getAnnotations().size()]),
parameter.getBaseType(), method.getJavaMember() , parameter);
lists.add(point);
}
}
return lists;
}
public static InjectionPoint getPartialInjectionPoint(Bean<?> owner,Type type, Member member, Annotated annotated, Annotation...bindings)
{
InjectionPointImpl impl = new InjectionPointImpl(owner,type,member,annotated);
for(Annotation annot : bindings)
{
impl.addBindingAnnotation(annot);
}
return impl;
}
public <T> List<InjectionPoint> getConstructorInjectionPointData(Bean<T> owner, AnnotatedConstructor<T> constructor)
{
Asserts.assertNotNull(owner, "owner parameter can not be null");
Asserts.assertNotNull(constructor, "constructor parameter can not be null");
List<InjectionPoint> lists = new ArrayList<InjectionPoint>();
List<AnnotatedParameter<T>> parameters = constructor.getParameters();
InjectionPoint point = null;
for(AnnotatedParameter<?> parameter : parameters)
{
point = getGenericInjectionPoint(owner, parameter.getAnnotations().toArray(new Annotation[parameter.getAnnotations().size()]),
parameter.getBaseType(), constructor.getJavaMember() , parameter);
lists.add(point);
}
return lists;
}
@SuppressWarnings("unchecked")
public List<InjectionPoint> getConstructorInjectionPointData(Bean<?> owner, Constructor<?> member)
{
Asserts.assertNotNull(owner, "owner parameter can not be null");
Asserts.assertNotNull(member, "member parameter can not be null");
List<InjectionPoint> lists = new ArrayList<InjectionPoint>();
AnnotatedType<Object> annotated = (AnnotatedType<Object>) webBeansContext.getAnnotatedElementFactory().newAnnotatedType(member.getDeclaringClass());
AnnotatedConstructor constructor = webBeansContext.getAnnotatedElementFactory().newAnnotatedConstructor((Constructor<Object>)member,annotated);
List<AnnotatedParameter<?>> parameters = constructor.getParameters();
InjectionPoint point = null;
for(AnnotatedParameter<?> parameter : parameters)
{
point = getGenericInjectionPoint(owner, parameter.getAnnotations().toArray(new Annotation[parameter.getAnnotations().size()]),
parameter.getBaseType(), member , parameter);
lists.add(point);
}
return lists;
}
private static void addAnnotation(InjectionPointImpl impl, Annotation[] annots, boolean isBinding)
{
for (Annotation ann : annots)
{
if (isBinding)
{
impl.addBindingAnnotation(ann);
}
}
}
}