01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * 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.wicket.util.convert.converters;
18:
19: import java.util.Locale;
20:
21: /**
22: * Converts from Object to Integer, adding zero-padding.
23: *
24: * @author Eelco Hillenius
25: * @author Jonathan Locke
26: * @author Al Maw
27: */
28: public final class ZeroPaddingIntegerConverter extends
29: AbstractIntegerConverter {
30: private static final long serialVersionUID = 1L;
31:
32: private final int zeroPadLength;
33:
34: /**
35: * Constructs this converter.
36: *
37: * @param zeroPadLength
38: * Minimum length of String to be outputted (will be
39: * zero-padded).
40: */
41: public ZeroPaddingIntegerConverter(int zeroPadLength) {
42: this .zeroPadLength = zeroPadLength;
43: }
44:
45: /**
46: * @see org.apache.wicket.util.convert.converters.AbstractNumberConverter#convertToString(java.lang.Object,
47: * java.util.Locale)
48: */
49: public String convertToString(Object value, Locale locale) {
50: String result = super .convertToString(value, locale);
51:
52: while (result.length() < zeroPadLength) {
53: result = "0" + result;
54: }
55:
56: return result;
57: }
58:
59: /**
60: * @see org.apache.wicket.util.convert.IConverter#convertToObject(java.lang.String,Locale)
61: */
62: public Object convertToObject(final String value, Locale locale) {
63: final Number number = parse(value, Integer.MIN_VALUE,
64: Integer.MAX_VALUE, locale);
65:
66: if (number == null) {
67: return null;
68: }
69:
70: return new Integer(number.intValue());
71: }
72:
73: /**
74: * @see org.apache.wicket.util.convert.converters.AbstractConverter#getTargetType()
75: */
76: protected Class getTargetType() {
77: return Integer.class;
78: }
79: }
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