Get Super Interfaces
/*
* The contents of this file are subject to the Sapient Public License
* Version 1.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
* http://carbon.sf.net/License.html.
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
* the specific language governing rights and limitations under the License.
*
* The Original Code is The Carbon Component Framework.
*
* The Initial Developer of the Original Code is Sapient Corporation
*
* Copyright (C) 2003 Sapient Corporation. All Rights Reserved.
*/
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
/**
*
*
* Copyright 2003 Sapient
* @since carbon 2.0
* @author Greg Hinkle, March 2003
* @version $Revision: 1.5 $($Author: dvoet $ / $Date: 2003/05/05 21:21:23 $)
*/
public class ClassUtil {
/**
* Retrieves all interfaces implemented by a specified interface
* including all recursively extended interfaces and the classes supplied
* int the parameter.
* @param childInterfaces a set of interfaces
* @return Class[] an array of interfaces that includes those specifed
* in childInterfaces plus all of those interfaces' super interfaces
*/
public static Class[] getSuperInterfaces(Class[] childInterfaces) {
List allInterfaces = new ArrayList();
for (int i = 0; i < childInterfaces.length; i++) {
allInterfaces.add(childInterfaces[i]);
allInterfaces.addAll(
Arrays.asList(
getSuperInterfaces(childInterfaces[i].getInterfaces())));
}
return (Class[]) allInterfaces.toArray(new Class[allInterfaces.size()]);
}
/**
* Builds an <b>unordered</b> set of all interface and object classes that
* are generalizations of the provided class.
* @param classObject the class to find generalization of.
* @return a Set of class objects.
*/
public static Set getGeneralizations(Class classObject) {
Set generalizations = new HashSet();
generalizations.add(classObject);
Class superClass = classObject.getSuperclass();
if (superClass != null) {
generalizations.addAll(getGeneralizations(superClass));
}
Class[] superInterfaces = classObject.getInterfaces();
for (int i = 0; i < superInterfaces.length; i++) {
Class superInterface = superInterfaces[i];
generalizations.addAll(getGeneralizations(superInterface));
}
return generalizations;
}
}
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