/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.annotation.factory.javassist;
import java.lang.reflect.Array;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import javassist.bytecode.annotation.AnnotationMemberValue;
import javassist.bytecode.annotation.ArrayMemberValue;
import javassist.bytecode.annotation.BooleanMemberValue;
import javassist.bytecode.annotation.ByteMemberValue;
import javassist.bytecode.annotation.CharMemberValue;
import javassist.bytecode.annotation.ClassMemberValue;
import javassist.bytecode.annotation.DoubleMemberValue;
import javassist.bytecode.annotation.EnumMemberValue;
import javassist.bytecode.annotation.FloatMemberValue;
import javassist.bytecode.annotation.IntegerMemberValue;
import javassist.bytecode.annotation.LongMemberValue;
import javassist.bytecode.annotation.MemberValue;
import javassist.bytecode.annotation.MemberValueVisitor;
import javassist.bytecode.annotation.ShortMemberValue;
import javassist.bytecode.annotation.StringMemberValue;
/**
* Comment
*
* @author <a href="mailto:bill@jboss.org">Bill Burke</a>
* @version $Revision: 68908 $
*/
public class ProxyMapCreator implements MemberValueVisitor
{
public Object value;
private Class type;
public ProxyMapCreator(Class type)
{
this.type = type;
}
public void visitAnnotationMemberValue(AnnotationMemberValue annotationMemberValue)
{
try
{
value = AnnotationProxy.createProxy(annotationMemberValue.getValue());
}
catch (Exception e)
{
throw new RuntimeException(e);
}
}
public void visitArrayMemberValue(ArrayMemberValue arrayMemberValue)
{
Class baseType = type.getComponentType();
int size = 0;
if (arrayMemberValue.getValue() != null)
{
size = arrayMemberValue.getValue().length;
}
value = Array.newInstance(baseType, size);
MemberValue[] elements = arrayMemberValue.getValue();
for (int i = 0; i < size; i++)
{
ProxyMapCreator creator = new ProxyMapCreator(baseType);
elements[i].accept(creator);
Array.set(value, i, creator.value);
}
}
public void visitBooleanMemberValue(BooleanMemberValue booleanMemberValue)
{
value = new Boolean(booleanMemberValue.getValue());
}
public void visitByteMemberValue(ByteMemberValue byteMemberValue)
{
value = new Byte(byteMemberValue.getValue());
}
public void visitCharMemberValue(CharMemberValue charMemberValue)
{
value = new Character(charMemberValue.getValue());
}
public void visitDoubleMemberValue(DoubleMemberValue doubleMemberValue)
{
value = new Double(doubleMemberValue.getValue());
}
public void visitEnumMemberValue(EnumMemberValue enumMemberValue)
{
try
{
Field enumVal = type.getField(enumMemberValue.getValue());
value = enumVal.get(null);
}
catch (NoSuchFieldException e)
{
throw new RuntimeException(e);
}
catch (SecurityException e)
{
throw new RuntimeException(e);
}
catch (IllegalArgumentException e)
{
throw new RuntimeException(e);
}
catch (IllegalAccessException e)
{
throw new RuntimeException(e);
}
}
public void visitFloatMemberValue(FloatMemberValue floatMemberValue)
{
value = new Float(floatMemberValue.getValue());
}
public void visitIntegerMemberValue(IntegerMemberValue integerMemberValue)
{
value = new Integer(integerMemberValue.getValue());
}
public void visitLongMemberValue(LongMemberValue longMemberValue)
{
value = new Long(longMemberValue.getValue());
}
public void visitShortMemberValue(ShortMemberValue shortMemberValue)
{
value = new Short(shortMemberValue.getValue());
}
public void visitStringMemberValue(StringMemberValue stringMemberValue)
{
value = stringMemberValue.getValue();
}
public void visitClassMemberValue(ClassMemberValue classMemberValue)
{
try
{
String classname = classMemberValue.getValue();
if (classname.equals("void"))
{
value = void.class;
}
else if (classname.equals("int"))
{
value = int.class;
}
else if (classname.equals("byte"))
{
value = byte.class;
}
else if (classname.equals("long"))
{
value = long.class;
}
else if (classname.equals("double"))
{
value = double.class;
}
else if (classname.equals("float"))
{
value = float.class;
}
else if (classname.equals("char"))
{
value = char.class;
}
else if (classname.equals("short"))
{
value = short.class;
}
else if (classname.equals("boolean"))
{
value = boolean.class;
}
else
{
ClassLoader loader = Thread.currentThread().getContextClassLoader();
value = Class.forName(classMemberValue.getValue(), false, loader);
}
}
catch (ClassNotFoundException e)
{
throw new RuntimeException(e);
}
}
public static Class getMemberType(Class annotation, String member)
{
Method[] methods = annotation.getMethods();
for (int i = 0; i < methods.length; i++)
{
if (methods[i].getName().equals(member))
{
return methods[i].getReturnType();
}
}
throw new RuntimeException("unable to determine member type for annotation: " + annotation.getName() + "." + member);
}
public static Map<String, Object> createProxyMap(Class annotation, javassist.bytecode.annotation.Annotation info)
{
Map<String, Object> map = new HashMap<String, Object>();
if (info.getMemberNames() == null) return map;
Set members = info.getMemberNames();
Iterator it = members.iterator();
while (it.hasNext())
{
String name = (String) it.next();
MemberValue mv = info.getMemberValue(name);
ProxyMapCreator creator = new ProxyMapCreator(getMemberType(annotation, name));
mv.accept(creator);
map.put(name, creator.value);
}
return map;
}
}