1 /*
2 * Copyright 2005-2008 The Kuali Foundation
3 *
4 *
5 * Licensed under the Educational Community License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.opensource.org/licenses/ecl2.php
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.kuali.rice.core.util;
18
19 import java.sql.Timestamp;
20
21 import org.apache.commons.beanutils.ConversionException;
22 import org.apache.commons.beanutils.Converter;
23
24 /**
25 * Converts an incoming object to a timestamp.
26 *
27 * Adapted from org.apache.commons.beanutils.converters.SqlTimestampConverter
28 */
29 public class SqlTimestampConverter implements Converter {
30
31 /**
32 * Create a {@link Converter} that will throw a {@link ConversionException}
33 * if a conversion error occurs.
34 */
35 public SqlTimestampConverter() {
36 this.defaultValue = null;
37 this.useDefault = true;
38 }
39
40 /**
41 * Create a {@link Converter} that will return the specified default value
42 * if a conversion error occurs.
43 *
44 * @param defaultValue The default value to be returned
45 */
46 public SqlTimestampConverter(Object defaultValue) {
47 this.defaultValue = defaultValue;
48 this.useDefault = true;
49 }
50
51 // ----------------------------------------------------- Instance Variables
52
53 /**
54 * The default value specified to our Constructor, if any.
55 */
56 private Object defaultValue = null;
57
58 /**
59 * Should we return the default value on conversion errors?
60 */
61 private boolean useDefault = true;
62
63 // --------------------------------------------------------- Public Methods
64
65 /**
66 * Convert the specified input object into an output object of the
67 * specified type.
68 *
69 * @param type Data type to which this value should be converted
70 * @param value The input value to be converted
71 *
72 * @exception ConversionException if conversion cannot be performed
73 * successfully
74 */
75 public Object convert(Class type, Object value) {
76 if (value == null) {
77 if (useDefault) {
78 return (defaultValue);
79 } else {
80 throw new ConversionException("No value specified");
81 }
82 }
83
84 if (value instanceof Timestamp) {
85 return (value);
86 }
87
88 try {
89 return (Timestamp.valueOf(value.toString()));
90 } catch (Exception e) {
91 if (useDefault) {
92 return (defaultValue);
93 } else {
94 throw new ConversionException(e);
95 }
96 }
97 }
98
99 }