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    
024    /**
025     * Uses the java.beans.PropertyEditor conversion system to convert Objects to
026     * and from String values.
027     * 
028     * @version $Revision: 523731 $
029     */
030    public class PropertyEditorTypeConverter implements TypeConverter {
031    
032        public <T> T convertTo(Class<T> toType, Object value) {
033    
034            // We can't convert null values since we can't figure out a property
035            // editor for it.
036            if (value == null) {
037                return null;
038            }
039    
040            if (value.getClass() == String.class) {
041    
042                // No conversion needed.
043                if (toType == String.class) {
044                    return toType.cast(value);
045                }
046    
047                PropertyEditor editor = PropertyEditorManager.findEditor(toType);
048                if (editor != null) {
049                    editor.setAsText(value.toString());
050                    return toType.cast(editor.getValue());
051                }
052    
053            } else if (toType == String.class) {
054    
055                PropertyEditor editor = PropertyEditorManager.findEditor(value.getClass());
056                if (editor != null) {
057                    editor.setValue(value);
058                    return toType.cast(editor.getAsText());
059                }
060    
061            }
062            return null;
063        }
064    
065    }