/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.config.reflect;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashSet;
import java.util.Set;
import javax.enterprise.inject.spi.Annotated;
/**
* Annotated object based only on reflection.
*/
public class ReflectionAnnotated implements Annotated, BaseTypeAnnotated
{
private static final LinkedHashSet<Annotation> _emptyAnnSet
= new LinkedHashSet<Annotation>();
private static final Annotation []_emptyAnnArray = new Annotation[0];
private BaseType _type;
private Set<Type> _typeSet;
private LinkedHashSet<Annotation> _annSet;
private Annotation []_annArray;
protected ReflectionAnnotated(BaseType type,
Set<Type> typeClosure,
Annotation []annList)
{
_type = type;
_typeSet = typeClosure;
if (annList != null && annList.length > 0) {
_annSet = new LinkedHashSet<Annotation>();
for (Annotation ann : annList) {
_annSet.add(ann);
}
_annArray = new Annotation[_annSet.size()];
_annSet.toArray(_annArray);
}
else {
_annSet = _emptyAnnSet;
_annArray = _emptyAnnArray;
}
}
/**
* Returns the base type of the annotated member.
*/
@Override
public Type getBaseType()
{
return _type.toType();
}
@Override
public BaseType getBaseTypeImpl()
{
return _type;
}
@Override
public Set<VarType<?>> getTypeVariables()
{
HashSet<VarType<?>> typeVariables = new HashSet<VarType<?>>();
fillTypeVariables(typeVariables);
return typeVariables;
}
protected void fillTypeVariables(Set<VarType<?>> typeVariables)
{
getBaseTypeImpl().fillSyntheticTypes(typeVariables);
}
@Override
public HashMap<String,BaseType> getBaseTypeParamMap()
{
return _type.getParamMap();
}
/**
* Returns all the types implemented by the member.
*/
public Set<Type> getTypeClosure()
{
return _typeSet;
}
/**
* Returns the introspected annotations
*/
public Set<Annotation> getAnnotations()
{
return _annSet;
}
/**
* Returns the matching annotation
*/
public <T extends Annotation> T getAnnotation(Class<T> annType)
{
for (Annotation ann : _annArray) {
if (annType.equals(ann.annotationType()))
return (T) ann;
}
return null;
}
protected void addAnnotation(Annotation ann)
{
if (_annSet == _emptyAnnSet)
_annSet = new LinkedHashSet<Annotation>();
_annSet.add(ann);
_annArray = new Annotation[_annSet.size()];
_annSet.toArray(_annArray);
}
/**
* Returns true if the annotation is present)
*/
@Override
public boolean isAnnotationPresent(Class<? extends Annotation> annType)
{
for (Annotation ann : _annArray) {
if (annType.equals(ann.annotationType()))
return true;
}
return false;
}
@Override
public String toString()
{
return getClass().getSimpleName() + "[" + _type + "]";
}
}