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.camel.impl.converter;
018    
019    import java.beans.PropertyEditor;
020    import java.beans.PropertyEditorManager;
021    
022    import org.apache.camel.TypeConverter;
023    import org.apache.camel.util.ObjectHelper;
024    
025    /**
026     * Uses the java.beans.PropertyEditor conversion system to convert Objects to
027     * and from String values.
028     *
029     * @version $Revision: 36321 $
030     */
031    public class PropertyEditorTypeConverter implements TypeConverter {
032    
033        public <T> T convertTo(Class<T> toType, Object value) {
034    
035            // We can't convert null values since we can't figure out a property
036            // editor for it.
037            if (value == null) {
038                return null;
039            }
040    
041    
042            if (value.getClass() == String.class) {
043    
044                // No conversion needed.
045                if (toType == String.class) {
046                    return ObjectHelper.cast(toType, value);
047                }
048    
049                PropertyEditor editor = PropertyEditorManager.findEditor(toType);
050                if (editor != null) {
051                    editor.setAsText(value.toString());
052                    return ObjectHelper.cast(toType, editor.getValue());
053                }
054    
055            } else if (toType == String.class) {
056    
057                PropertyEditor editor = PropertyEditorManager.findEditor(value.getClass());
058                if (editor != null) {
059                    editor.setValue(value);
060                    return ObjectHelper.cast(toType, editor.getAsText());
061                }
062            }
063            return null;
064        }
065    
066    }