01: /*
02: * Copyright 2005-2006 The Kuali Foundation.
03: *
04: * Licensed under the Educational Community License, Version 1.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.opensource.org/licenses/ecl1.php
09: *
10: * Unless required by applicable law or agreed to in writing, software
11: * distributed under the License is distributed on an "AS IS" BASIS,
12: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13: * See the License for the specific language governing permissions and
14: * limitations under the License.
15: */
16: package org.kuali.core.web.format;
17:
18: import org.apache.commons.lang.StringUtils;
19: import org.kuali.RiceKeyConstants;
20:
21: /**
22: * This class is used to format Long objects.
23: */
24: public class LongFormatter extends Formatter {
25: private static final long serialVersionUID = -926525576380295384L;
26:
27: /**
28: * Returns an object representation of the provided string.
29: */
30: protected Object convertToObject(String string) {
31: if (StringUtils.isEmpty(string))
32: return null;
33:
34: try {
35: return new Long(string);
36: } catch (NumberFormatException e) {
37: throw new FormatException("parsing",
38: RiceKeyConstants.ERROR_LONG, string, e);
39: }
40: }
41:
42: /**
43: * Returns the provided value as a formatted string
44: */
45: public Object format(Object value) {
46: return (value == null ? null : value.toString());
47: }
48: }
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