001 /*
002 * Copyright 2004 Chris Nelson
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
007 * Unless required by applicable law or agreed to in writing,
008 * software distributed under the License is distributed on an "AS IS" BASIS,
009 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
010 * See the License for the specific language governing permissions and limitations under the License.
011 */
012 package org.tynamo.util;
013
014 import ognl.Ognl;
015 import ognl.OgnlException;
016 import org.tynamo.exception.TynamoRuntimeException;
017
018 import java.util.Collection;
019 import java.util.HashMap;
020
021
022 public class Utils
023 {
024
025 /* keys used to internationalize Tynamo in Tapestry components and pages */
026 public static final String APPLY_MESSAGE = "org.tynamo.i18n.apply";
027 public static final String APPLY_AND_RETURN_MESSAGE = "org.tynamo.i18n.applyAndReturn";
028 public static final String REMOVE_MESSAGE = "org.tynamo.i18n.remove";
029 public static final String CANCEL_MESSAGE = "org.tynamo.i18n.cancel";
030 public static final String ADD_NEW_MESSAGE = "org.tynamo.i18n.addNew";
031
032 public static final String EDIT_MESSAGE = "org.tynamo.i18n.edit";
033 public static final String SHOW_MESSAGE = "org.tynamo.i18n.show";
034 public static final String LIST_MESSAGE = "org.tynamo.i18n.list";
035 public static final String NEW_MESSAGE = "org.tynamo.i18n.new";
036
037 public static final String ADDED_MESSAGE = "org.tynamo.i18n.added";
038 public static final String SAVED_MESSAGE = "org.tynamo.i18n.saved";
039
040 public static String DEFAULT = "Default";
041
042 public static Class classForName(String className)
043 {
044 try
045 {
046 return Class.forName(className);
047 } catch (ClassNotFoundException e)
048 {
049 throw new TynamoRuntimeException(e, null);
050 }
051 }
052
053 public static String unqualify(String className)
054 {
055 return className.substring(className.lastIndexOf(".") + 1);
056 }
057
058 /**
059 * Thank you, AndroMDA project...
060 * Linguistically pluralizes a singular noun. <p/>
061 * <ul>
062 * <li><code>noun</code> becomes <code>nouns</code></li>
063 * <li><code>key</code> becomes <code>keys</code></li>
064 * <li><code>word</code> becomes <code>words</code></li>
065 * <li><code>property</code> becomes <code>properties</code></li>
066 * <li><code>bus</code> becomes <code>busses</code></li>
067 * <li><code>boss</code> becomes <code>bosses</code></li>
068 * </ul>
069 * <p/>
070 * Whitespace as well as <code>null></code> arguments will return an empty
071 * String.
072 * </p>
073 *
074 * @param singularNoun A singularNoun to pluralize
075 * @return The plural of the argument singularNoun
076 */
077 public static String pluralize(String singularNoun)
078 {
079 String pluralNoun = singularNoun;
080
081 int nounLength = pluralNoun.length();
082
083 if (nounLength == 1)
084 {
085 pluralNoun = pluralNoun + 's';
086 } else if (nounLength > 1)
087 {
088 char secondToLastChar = pluralNoun.charAt(nounLength - 2);
089
090 if (pluralNoun.endsWith("y"))
091 {
092 switch (secondToLastChar)
093 {
094 case 'a': // fall-through
095 case 'e': // fall-through
096 case 'i': // fall-through
097 case 'o': // fall-through
098 case 'u':
099 pluralNoun = pluralNoun + 's';
100 break;
101 default:
102 pluralNoun = pluralNoun.substring(0, nounLength - 1)
103 + "ies";
104 }
105 } else if (pluralNoun.endsWith("s"))
106 {
107 switch (secondToLastChar)
108 {
109 case 's':
110 pluralNoun = pluralNoun + "es";
111 break;
112 default:
113 pluralNoun = pluralNoun + "ses";
114 }
115 } else
116 {
117 pluralNoun = pluralNoun + 's';
118 }
119 }
120 return pluralNoun;
121 }
122
123 /**
124 * @param type the (usable) super type if passed a CGLIB enhanced class
125 * @return
126 */
127 public static Class checkForCGLIB(Class type)
128 {
129 if (type.getName().contains("CGLIB"))
130 {
131 return type.getSuperclass();
132 } else return type;
133 }
134
135 public static void executeOgnlExpression(String ognlExpression, Object member, Object model)
136 {
137 HashMap context = new HashMap();
138 context.put("member", member);
139
140 try
141 {
142 Ognl.getValue(ognlExpression + "(#member)", context, model);
143 } catch (OgnlException e)
144 {
145 throw new TynamoRuntimeException(e, model.getClass());
146 }
147 }
148
149 /**
150 * Tests whether or not a name matches against at least one exclude pattern.
151 *
152 * @param name The name to match. Must not be null.
153 * @param exclusionPatterns the list of exclude patterns to test against
154 * @return true when the name matches against at least one exclude pattern, or false otherwise.
155 */
156 public static boolean isExcluded(String name, Collection<String> exclusionPatterns)
157 {
158 for (String exclusionPattern : exclusionPatterns)
159 {
160 if (name.matches(exclusionPattern))
161 {
162 return true;
163 }
164 }
165
166 return false;
167 }
168 }