1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.betwixt.strategy;
18
19 import java.lang.reflect.Array;
20
21 import org.apache.commons.beanutils.ConvertUtils;
22 import org.apache.commons.beanutils.Converter;
23 import org.apache.commons.betwixt.expression.Context;
24
25 /**
26 * String <-> object conversion strategy that delegates to ConvertUtils.
27 *
28 * @author Robert Burrell Donkin
29 * @since 0.5
30 */
31 public class ConvertUtilsObjectStringConverter extends ObjectStringConverter {
32
33 /**
34 * Converts an object to a string representation using ConvertUtils.
35 *
36 * @param object the object to be converted, possibly null
37 * @param type the property class of the object, not null
38 * @param flavour a string allow symantic differences in formatting
39 * to be communicated (ignored)
40 * @param context not null
41 * @return a String representation, not null
42 */
43 public String objectToString(Object object, Class type, String flavour, Context context) {
44 if ( object != null ) {
45 String text = ConvertUtils.convert( object );
46 if ( text != null ) {
47 return text;
48 }
49 }
50 return "";
51 }
52
53 /**
54 * Converts an object to a string representation using ConvertUtils.
55 * This implementation ignores null and empty string values (rather than converting them).
56 *
57 * @param value the String to be converted, not null
58 * @param type the property class to be returned (if possible), not null
59 * @param flavour a string allow symantic differences in formatting
60 * to be communicated (ignored)
61 * @param context not null
62 * @return an Object converted from the String, not null
63 */
64 public Object stringToObject(String value, Class type, String flavour, Context context) {
65 if (value == null || "".equals(value))
66 {
67 return "";
68 }
69
70 return ConvertUtils.convert( value, type );
71 }
72 }