1 /*
2 * $Header: /home/cvs/jakarta-commons/betwixt/src/java/org/apache/commons/betwixt/strategy/HyphenatedNameMapper.java,v 1.2 2002/09/12 13:49:03 jstrachan Exp $
3 * $Revision: 1.2 $
4 * $Date: 2002/09/12 13:49:03 $
5 *
6 * ====================================================================
7 *
8 * The Apache Software License, Version 1.1
9 *
10 * Copyright (c) 1999-2002 The Apache Software Foundation. All rights
11 * reserved.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 *
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 *
20 * 2. Redistributions in binary form must reproduce the above copyright
21 * notice, this list of conditions and the following disclaimer in
22 * the documentation and/or other materials provided with the
23 * distribution.
24 *
25 * 3. The end-user documentation included with the redistribution, if
26 * any, must include the following acknowlegement:
27 * "This product includes software developed by the
28 * Apache Software Foundation (http://www.apache.org/)."
29 * Alternately, this acknowlegement may appear in the software itself,
30 * if and wherever such third-party acknowlegements normally appear.
31 *
32 * 4. The names "The Jakarta Project", "Commons", and "Apache Software
33 * Foundation" must not be used to endorse or promote products derived
34 * from this software without prior written permission. For written
35 * permission, please contact apache@apache.org.
36 *
37 * 5. Products derived from this software may not be called "Apache"
38 * nor may "Apache" appear in their names without prior written
39 * permission of the Apache Group.
40 *
41 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
42 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
43 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
44 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
45 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
46 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
47 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
48 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
49 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
50 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
51 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * SUCH DAMAGE.
53 * ====================================================================
54 *
55 * This software consists of voluntary contributions made by many
56 * individuals on behalf of the Apache Software Foundation. For more
57 * information on the Apache Software Foundation, please see
58 * <http://www.apache.org/>;.
59 *
60 * $Id: HyphenatedNameMapper.java,v 1.2 2002/09/12 13:49:03 jstrachan Exp $
61 */
62 package org.apache.commons.betwixt.strategy;
63
64 import java.beans.Introspector;
65
66 /***
67 * A name mapper which converts types to a hypenated String. So
68 * a bean type of FooBar will be converted to the element name "foo-bar".
69 * The name mapper can be configured to convert to upper case and to
70 * use a different separator via the <code>separator</code> and
71 * <code>upperCase</code> properties, so that FooBar can be converted
72 * to FOO_BAR if needed, by calling the constructor
73 * <code>new HyphenatedNameMapper(true, "_")</code>.
74 *
75 * @author <a href="mailto:jason@zenplex.com">Jason van Zyl</a>
76 * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
77 * @version $Revision: 1.2 $
78 */
79 public class HyphenatedNameMapper implements NameMapper {
80
81 /*** the separator used to seperate words, which defaults to '-' */
82 private String separator = "-";
83
84 /*** whether upper or lower case conversions should be performed */
85 private boolean upperCase = false;
86
87 public HyphenatedNameMapper() {
88 }
89
90 public HyphenatedNameMapper(boolean upperCase) {
91 this.upperCase = upperCase;
92 }
93
94 public HyphenatedNameMapper(boolean upperCase, String separator) {
95 this.upperCase = upperCase;
96 this.separator = separator;
97 }
98
99 /***
100 * @return the element name for the given bean type name
101 */
102 public String mapTypeToElementName(String typeName) {
103
104 int length = typeName.length();
105 if (length == 0) {
106 return "";
107 }
108
109 StringBuffer sb = new StringBuffer();
110
111 sb.append(convertChar(typeName.charAt(0)));
112
113 for (int i = 1; i < length; i++) {
114 if (Character.isUpperCase(typeName.charAt(i))) {
115 sb.append(separator);
116 sb.append(convertChar(typeName.charAt(i)));
117 }
118 else {
119 if ( upperCase ) {
120 sb.append(convertChar(typeName.charAt(i)));
121 }
122 else {
123 sb.append(typeName.charAt(i));
124 }
125 }
126 }
127
128 return sb.toString();
129 }
130
131 // Properties
132 //-------------------------------------------------------------------------
133 /***
134 * @return the separator used to seperate words, which defaults to '-'
135 */
136 public String getSeparator() {
137 return separator;
138 }
139
140 /***
141 * Sets the separator used to seperate words, which defaults to '-'
142 */
143 public void setSeparator(String separator) {
144 this.separator = separator;
145 }
146
147 /***
148 * @return whether upper or lower case conversions should be performed,
149 * which defaults to false for lower case
150 */
151 public boolean isUpperCase() {
152 return upperCase;
153 }
154
155 /***
156 * Sets whether upper or lower case conversions should be performed,
157 * which defaults to false for lower case
158 */
159 public void setUpperCase(boolean upperCase) {
160 this.upperCase = upperCase;
161 }
162
163 // Implementation methods
164 //-------------------------------------------------------------------------
165
166 /***
167 * Performs type conversion on the given character based on whether
168 * upper or lower case conversions are being used
169 */
170 protected char convertChar(char ch) {
171 if ( upperCase ) {
172 return Character.toUpperCase(ch);
173 }
174 else {
175 return Character.toLowerCase(ch);
176 }
177 }
178 }
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