// Copyright 2005 The Apache Software Foundation
//
// Licensed 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.hivemind.service.impl;
import java.util.HashMap;
import java.util.Map;
import javassist.CtClass;
/**
* Common code for {@link org.apache.hivemind.service.impl.ClassFabImpl} and
* {@link org.apache.hivemind.service.impl.InterfaceFabImpl}.
*
* @author Howard M. Lewis Ship
* @since 1.1
*/
public class AbstractFab
{
private final CtClass _ctClass;
private final CtClassSource _source;
public AbstractFab(CtClassSource source, CtClass ctClass)
{
_ctClass = ctClass;
_source = source;
}
/**
* Map from Class to CtClass.
*
* @since 1.1
*/
private Map _ctClassCache = new HashMap();
public void addInterface(Class interfaceClass)
{
CtClass ctInterfaceClass = _source.getCtClass(interfaceClass);
_ctClass.addInterface(ctInterfaceClass);
}
protected CtClass[] convertClasses(Class[] inputClasses)
{
if (inputClasses == null || inputClasses.length == 0)
return null;
int count = inputClasses.length;
CtClass[] result = new CtClass[count];
for (int i = 0; i < count; i++)
{
CtClass ctClass = convertClass(inputClasses[i]);
result[i] = ctClass;
}
return result;
}
public boolean canConvert(Class inputClass)
{
return _source.canConvert(inputClass);
}
/**
* @since 1.1
*/
protected CtClass convertClass(Class inputClass)
{
CtClass result = (CtClass) _ctClassCache.get(inputClass);
if (result == null)
{
result = _source.getCtClass(inputClass);
_ctClassCache.put(inputClass, result);
}
return result;
}
public Class createClass()
{
return _source.createClass(_ctClass);
}
protected CtClass getCtClass()
{
return _ctClass;
}
protected CtClassSource getSource()
{
return _source;
}
}