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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2012 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
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* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package org.glassfish.hk2.utilities;
import java.lang.annotation.Annotation;
import java.lang.reflect.AnnotatedElement;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.Type;
import java.util.Collections;
import java.util.Set;
import org.glassfish.hk2.api.ActiveDescriptor;
import org.glassfish.hk2.api.Injectee;
import org.glassfish.hk2.api.Unqualified;
import org.glassfish.hk2.utilities.reflection.Pretty;
/**
* This is a writeable version of the Injectee interface. Using this
* implementation may make your code more portable, as new methods
* added to the interface will be reflected in this class.
*
* @author jwells
*
*/
public class InjecteeImpl implements Injectee {
private Type requiredType;
private Set qualifiers;
private int position;
private Class pClass;
private AnnotatedElement parent;
private boolean isOptional = false;
private boolean isSelf = false;
private Unqualified unqualified = null;
private ActiveDescriptor injecteeDescriptor;
/**
* None of the fields of the returned object will be set
*/
public InjecteeImpl() {
}
/**
* Only the requiredType field will be set
*
* @param requiredType The possibly null required type
*/
public InjecteeImpl(Type requiredType) {
this.requiredType = requiredType;
}
/**
* This is the copy constructor, which will copy all the values from the incoming Injectee
* @param copyMe The non-null Injectee to copy the values from
*/
public InjecteeImpl(Injectee copyMe) {
requiredType = copyMe.getRequiredType();
position = copyMe.getPosition();
parent = copyMe.getParent();
qualifiers = Collections.unmodifiableSet(copyMe.getRequiredQualifiers());
isOptional = copyMe.isOptional();
isSelf = copyMe.isSelf();
injecteeDescriptor = copyMe.getInjecteeDescriptor();
// unqualified = copyMe.getUnqualified();
if (parent instanceof Field) {
pClass = ((Field) parent).getDeclaringClass();
}
else if (parent instanceof Constructor) {
pClass = ((Constructor) parent).getDeclaringClass();
}
else if (parent instanceof Method) {
pClass = ((Method) parent).getDeclaringClass();
}
else {
throw new IllegalArgumentException("parent " + parent + " has an unknown type");
}
}
/* (non-Javadoc)
* @see org.glassfish.hk2.api.Injectee#getRequiredType()
*/
@Override
public Type getRequiredType() {
return requiredType;
}
/**
* Sets the required type of this Injectee
* @param requiredType The required type of this injectee
*/
public void setRequiredType(Type requiredType) {
this.requiredType = requiredType;
}
/* (non-Javadoc)
* @see org.glassfish.hk2.api.Injectee#getRequiredQualifiers()
*/
@Override
public Set getRequiredQualifiers() {
if (qualifiers == null) return Collections.emptySet();
return qualifiers;
}
/**
* Sets the required qualifiers for this Injectee
* @param requiredQualifiers The non-null set of required qualifiers
*/
public void setRequiredQualifiers(Set requiredQualifiers) {
qualifiers = Collections.unmodifiableSet(requiredQualifiers);
}
/* (non-Javadoc)
* @see org.glassfish.hk2.api.Injectee#getPosition()
*/
@Override
public int getPosition() {
return position;
}
/**
* Sets the position of this Injectee. The position represents the index of
* the parameter, or -1 if this Injectee is describing a field.
*
* @param position The index position of the parameter, or -1 if descrbing a field
*/
public void setPosition(int position) {
this.position = position;
}
/* (non-Javadoc)
* @see org.glassfish.hk2.api.Injectee#getInjecteeClass()
*/
@Override
public Class getInjecteeClass() {
return pClass;
}
/* (non-Javadoc)
* @see org.glassfish.hk2.api.Injectee#getParent()
*/
@Override
public AnnotatedElement getParent() {
return parent;
}
/**
* This setter sets both the parent and the injecteeClass fields.
*
* @param parent The parent (Field, Constructor or Method) which is
* the parent of this Injectee
*/
public void setParent(AnnotatedElement parent) {
this.parent = parent;
if (parent instanceof Field) {
pClass = ((Field) parent).getDeclaringClass();
}
else if (parent instanceof Constructor) {
pClass = ((Constructor) parent).getDeclaringClass();
}
else if (parent instanceof Method) {
pClass = ((Method) parent).getDeclaringClass();
}
}
/* (non-Javadoc)
* @see org.glassfish.hk2.api.Injectee#isOptional()
*/
@Override
public boolean isOptional() {
return isOptional;
}
/**
* Sets whether or not this Injectee should be considered optional
*
* @param optional true if this injectee is optional, false if required
*/
public void setOptional(boolean optional) {
this.isOptional = optional;
}
/* (non-Javadoc)
* @see org.glassfish.hk2.api.Injectee#isSelf()
*/
@Override
public boolean isSelf() {
return isSelf;
}
/**
* Sets whether or not this is a self-referencing injectee
*
* @param self true if this is a self-referencing Injectee, and false otherwise
*/
public void setSelf(boolean self) {
isSelf = self;
}
/* (non-Javadoc)
* @see org.glassfish.hk2.api.Injectee#getUnqualified()
*/
@Override
public Unqualified getUnqualified() {
return unqualified;
}
/**
* Sets the unqualified annotation to be associated with this injectee
*
* @param unqualified The unqualified annotation to be associated with this injectee
*/
public void setUnqualified(Unqualified unqualified) {
this.unqualified = unqualified;
}
@Override
public ActiveDescriptor getInjecteeDescriptor() {
return injecteeDescriptor;
}
/**
* Sets the descriptor to be associated with this injectee
*
* @param injecteeDescriptor The injectee to be associated with this injectee
*/
public void setInjecteeDescriptor(ActiveDescriptor injecteeDescriptor) {
this.injecteeDescriptor = injecteeDescriptor;
}
public String toString() {
return "InjecteeImpl(requiredType=" + Pretty.type(requiredType) +
",parent=" + Pretty.clazz(pClass) +
",qualifiers=" + Pretty.collection(qualifiers) +
",position=" + position +
",optional=" + isOptional +
",self=" + isSelf +
",unqualified=" + unqualified +
"," + System.identityHashCode(this) + ")";
}
}