001/**
002 * Copyright 2005-2016 The Kuali Foundation
003 *
004 * Licensed under the Educational Community License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.opensource.org/licenses/ecl2.php
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.kuali.rice.krad.util;
017
018import org.kuali.rice.krad.bo.BusinessObject;
019import org.kuali.rice.krad.bo.ExternalizableBusinessObject;
020
021/**
022 * A class with utilities related to externalizable business objects
023 */
024public final class ExternalizableBusinessObjectUtils {
025    private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(ExternalizableBusinessObjectUtils.class);
026
027        private ExternalizableBusinessObjectUtils() {
028                throw new UnsupportedOperationException("do not call");
029        }
030    
031        /**
032         * Given a class, this method determines which of the interfaces that the class implements extends {@link ExternalizableBusinessObject}
033         * 
034         * @param businessObjectClass
035         * @return
036         */
037        public static Class determineExternalizableBusinessObjectSubInterface(Class businessObjectClass) {
038                if (businessObjectClass == null) {
039                        return null;
040                }
041                //if (businessObjectClass.isInterface()) {
042                        if (!ExternalizableBusinessObject.class.equals(businessObjectClass) && ExternalizableBusinessObject.class.isAssignableFrom(businessObjectClass)) {
043                                return businessObjectClass;
044                        }
045            if (ExternalizableBusinessObject.class.isAssignableFrom(businessObjectClass)) {
046                Class tempClass = businessObjectClass;
047                while (tempClass != null && !Object.class.equals(tempClass)) {
048                    for (Class tempClassInterface : tempClass.getInterfaces()) {
049                        if (!ExternalizableBusinessObject.class.equals(tempClassInterface) && ExternalizableBusinessObject.class.isAssignableFrom(tempClassInterface)) {
050                            return tempClassInterface;
051                        }
052                    }
053                    tempClass = tempClass.getSuperclass();
054                }
055            }
056            return null;
057        }
058        
059        public static boolean isExternalizableBusinessObjectInterface(Class businessObjectClass) {
060                return businessObjectClass != null && businessObjectClass.isInterface() && ExternalizableBusinessObject.class.isAssignableFrom(businessObjectClass);
061        }
062
063    public static boolean isExternalizableBusinessObject(Class businessObjectClass) {
064        return businessObjectClass != null && ExternalizableBusinessObject.class.isAssignableFrom(businessObjectClass);
065    }
066
067
068        public static boolean isExternalizableBusinessObjectInterface(String businessObjectClassName) {
069                try {
070                        Class businessObjectClass = Class.forName( businessObjectClassName );
071                        return isExternalizableBusinessObjectInterface(businessObjectClass);
072                } catch ( Exception ex ) {
073                        LOG.debug( "Unable to get class object for class name: " + businessObjectClassName, ex );
074                        return false;
075                }
076        }
077}