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 */
017package org.apache.xbean.spring.context.impl;
018
019import org.apache.commons.logging.Log;
020import org.apache.commons.logging.LogFactory;
021
022import java.beans.PropertyEditorManager;
023
024/**
025 * A helper method to register some custom editors
026 * 
027 * @version $Revision: 1.1 $
028 */
029public 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}