001    /**
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    package org.apache.xbean.spring.context.impl;
018    
019    import org.apache.commons.logging.Log;
020    import org.apache.commons.logging.LogFactory;
021    
022    import java.beans.PropertyEditorManager;
023    
024    /**
025     * A helper method to register some custom editors
026     * 
027     * @version $Revision: 1.1 $
028     */
029    public class PropertyEditorHelper {
030        private static final Log log = LogFactory.getLog(PropertyEditorHelper.class);
031    
032        public static void registerCustomEditors() {
033            registerEditor("java.io.File", "org.apache.xbean.spring.context.impl.FileEditor");
034            registerEditor("java.net.URI", "org.apache.xbean.spring.context.impl.URIEditor");
035            registerEditor("java.util.Date", "org.apache.xbean.spring.context.impl.DateEditor");
036            registerEditor("javax.management.ObjectName", "org.apache.xbean.spring.context.impl.ObjectNameEditor");
037        }
038    
039        protected static void registerEditor(String typeName, String editorName) {
040            Class type = loadClass(typeName);
041            Class editor = loadClass(editorName);
042            if (type != null && editor != null) {
043                PropertyEditorManager.registerEditor(type, editor);
044            }
045        }
046    
047        public static void unregisterCustomEditors() {
048            unregisterEditor("java.io.File");
049            unregisterEditor("java.net.URI");
050            unregisterEditor("java.util.Date");
051            unregisterEditor("javax.management.ObjectName");
052        }
053    
054        protected static void unregisterEditor(String typeName) {
055            Class type = loadClass(typeName);
056            if (type != null) {
057                PropertyEditorManager.registerEditor(type, null);
058            }
059        }
060        public static Class loadClass(String name) {
061            ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
062            if (contextClassLoader != null) {
063                try {
064                    return contextClassLoader.loadClass(name);
065                }
066                catch (ClassNotFoundException e) {
067                }
068                catch (NoClassDefFoundError e) {
069                }
070            }
071            try {
072                return PropertyEditorHelper.class.getClassLoader().loadClass(name);
073            }
074            catch (ClassNotFoundException e) {
075                log.debug("Could not find class: " + name + " on the classpath");
076                return null;
077            }
078            catch (NoClassDefFoundError e) {
079                log.debug("Could not load class: " + name + " on the classpath. " + e.getMessage());
080                return null;
081            }
082        }
083    
084    }