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org.apache.turbine.services.intake.validator.IntegerValidator |
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1 | package org.apache.turbine.services.intake.validator; |
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2 | ||
3 | /* |
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4 | * Copyright 2001-2005 The Apache Software Foundation. |
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5 | * |
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6 | * Licensed under the Apache License, Version 2.0 (the "License") |
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7 | * you may not use this file except in compliance with the License. |
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8 | * You may obtain a copy of the License at |
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9 | * |
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10 | * http://www.apache.org/licenses/LICENSE-2.0 |
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11 | * |
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12 | * Unless required by applicable law or agreed to in writing, software |
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13 | * distributed under the License is distributed on an "AS IS" BASIS, |
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14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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15 | * See the License for the specific language governing permissions and |
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16 | * limitations under the License. |
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17 | */ |
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18 | ||
19 | import java.util.Map; |
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20 | ||
21 | import org.apache.commons.lang.StringUtils; |
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22 | ||
23 | /** |
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24 | * Validates Integers with the following constraints in addition to those |
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25 | * listed in NumberValidator and DefaultValidator. |
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26 | * |
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27 | * <table> |
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28 | * <tr><th>Name</th><th>Valid Values</th><th>Default Value</th></tr> |
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29 | * <tr><td>minValue</td><td>greater than Integer.MIN_VALUE</td> |
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30 | * <td> </td></tr> |
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31 | * <tr><td>maxValue</td><td>less than Integer.MAX_VALUE</td> |
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32 | * <td> </td></tr> |
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33 | * <tr><td>invalidNumberMessage</td><td>Some text</td> |
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34 | * <td>Entry was not a valid number</td></tr> |
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35 | * </table> |
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36 | * |
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37 | * @author <a href="mailto:jmcnally@collab.net">John McNally</a> |
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38 | * @author <a href="mailto:Colin.Chalmers@maxware.nl">Colin Chalmers</a> |
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39 | * @version $Id: IntegerValidator.java 264148 2005-08-29 14:21:04Z henning $ |
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40 | */ |
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41 | public class IntegerValidator |
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42 | extends NumberValidator |
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43 | { |
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44 | /* Init the minValue to that for a Integer */ |
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45 | 0 | private int minValue = Integer.MIN_VALUE; |
46 | ||
47 | /* Init the maxValue to that for a Integer */ |
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48 | 0 | private int maxValue = Integer.MAX_VALUE; |
49 | ||
50 | /** |
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51 | * Constructor to use when initialising Object |
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52 | * |
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53 | * @param paramMap |
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54 | * @throws InvalidMaskException |
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55 | */ |
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56 | public IntegerValidator(Map paramMap) |
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57 | throws InvalidMaskException |
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58 | 0 | { |
59 | 0 | invalidNumberMessage = "Entry was not a valid Integer"; |
60 | 0 | init(paramMap); |
61 | 0 | } |
62 | ||
63 | /** |
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64 | * Default Constructor |
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65 | */ |
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66 | public IntegerValidator() |
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67 | 0 | { |
68 | 0 | } |
69 | ||
70 | /** |
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71 | * Method to initialise Object |
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72 | * |
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73 | * @param paramMap |
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74 | * @throws InvalidMaskException |
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75 | */ |
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76 | public void init(Map paramMap) |
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77 | throws InvalidMaskException |
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78 | { |
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79 | 0 | super.init(paramMap); |
80 | ||
81 | 0 | Constraint constraint = (Constraint) paramMap.get(MIN_VALUE_RULE_NAME); |
82 | 0 | if (constraint != null) |
83 | { |
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84 | 0 | String param = constraint.getValue(); |
85 | 0 | minValue = Integer.parseInt(param); |
86 | 0 | minValueMessage = constraint.getMessage(); |
87 | } |
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88 | ||
89 | 0 | constraint = (Constraint) paramMap.get(MAX_VALUE_RULE_NAME); |
90 | 0 | if (constraint != null) |
91 | { |
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92 | 0 | String param = constraint.getValue(); |
93 | 0 | maxValue = Integer.parseInt(param); |
94 | 0 | maxValueMessage = constraint.getMessage(); |
95 | } |
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96 | 0 | } |
97 | ||
98 | /** |
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99 | * Determine whether a testValue meets the criteria specified |
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100 | * in the constraints defined for this validator |
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101 | * |
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102 | * @param testValue a <code>String</code> to be tested |
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103 | * @exception ValidationException containing an error message if the |
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104 | * testValue did not pass the validation tests. |
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105 | */ |
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106 | public void assertValidity(String testValue) |
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107 | throws ValidationException |
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108 | { |
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109 | 0 | super.assertValidity(testValue); |
110 | ||
111 | 0 | if (required || StringUtils.isNotEmpty(testValue)) |
112 | { |
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113 | 0 | int i = 0; |
114 | try |
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115 | { |
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116 | 0 | i = Integer.parseInt(testValue); |
117 | } |
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118 | 0 | catch (RuntimeException e) |
119 | { |
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120 | 0 | errorMessage = invalidNumberMessage; |
121 | 0 | throw new ValidationException(invalidNumberMessage); |
122 | 0 | } |
123 | ||
124 | 0 | if (i < minValue) |
125 | { |
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126 | 0 | errorMessage = minValueMessage; |
127 | 0 | throw new ValidationException(minValueMessage); |
128 | } |
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129 | 0 | if (i > maxValue) |
130 | { |
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131 | 0 | errorMessage = maxValueMessage; |
132 | 0 | throw new ValidationException(maxValueMessage); |
133 | } |
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134 | } |
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135 | 0 | } |
136 | ||
137 | ||
138 | // ************************************************************ |
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139 | // ** Bean accessor methods ** |
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140 | // ************************************************************ |
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141 | ||
142 | /** |
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143 | * Get the value of minValue. |
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144 | * |
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145 | * @return value of minValue. |
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146 | */ |
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147 | public int getMinValue() |
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148 | { |
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149 | 0 | return minValue; |
150 | } |
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151 | ||
152 | /** |
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153 | * Set the value of minValue. |
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154 | * |
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155 | * @param minValue Value to assign to minValue. |
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156 | */ |
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157 | public void setMinValue(int minValue) |
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158 | { |
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159 | 0 | this.minValue = minValue; |
160 | 0 | } |
161 | ||
162 | /** |
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163 | * Get the value of maxValue. |
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164 | * |
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165 | * @return value of maxValue. |
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166 | */ |
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167 | public int getMaxValue() |
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168 | { |
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169 | 0 | return maxValue; |
170 | } |
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171 | ||
172 | /** |
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173 | * Set the value of maxValue. |
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174 | * |
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175 | * @param maxValue Value to assign to maxValue. |
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176 | */ |
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177 | public void setMaxValue(int maxValue) |
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178 | { |
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179 | 0 | this.maxValue = maxValue; |
180 | 0 | } |
181 | } |
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