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Java > Open Source Codes > org > apache > fulcrum > intake > validator > LongValidator


1 package org.apache.fulcrum.intake.validator;
2
3 /* ====================================================================
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56
57 import java.util.Map JavaDoc;
58 import org.apache.fulcrum.ServiceException;
59
60 /**
61  * Validates numbers with the following constraints in addition to those
62  * listed in DefaultValidator.
63  *
64  * <table>
65  * <tr><th>Name</th><th>Valid Values</th><th>Default Value</th></tr>
66  * <tr><td>minValue</td><td>greater than Long.MIN_VALUE</td>
67  * <td>&nbsp;</td></tr>
68  * <tr><td>maxValue</td><td>less than Long.MAX_VALUE</td>
69  * <td>&nbsp;</td></tr>
70  * <tr><td>notANumberMessage</td><td>Some text</td>
71  * <td>Entry was not a valid number</td></tr>
72  * </table>
73  *
74  * @author <a HREF="mailto:jmcnally@collab.net>John McNally</a>
75  * @version $Id: LongValidator.java,v 1.1 2004/11/12 10:26:02 epugh Exp $
76  */
77 public class LongValidator
78     extends NumberValidator
79 {
80     private static String JavaDoc INVALID_NUMBER = "Entry was not a valid integer";
81
82     private long minValue;
83     private long maxValue;
84
85     public LongValidator(Map JavaDoc paramMap)
86         throws ServiceException
87     {
88         this();
89         init(paramMap);
90     }
91
92     public LongValidator()
93     {
94         // sets the default invalid number message
95 super();
96     }
97
98     protected void doInit(Map JavaDoc paramMap)
99     {
100         minValue = Long.MIN_VALUE;
101         maxValue = Long.MAX_VALUE;
102
103         Constraint constraint = (Constraint)paramMap.get("minValue");
104         if ( constraint != null )
105         {
106             String JavaDoc param = constraint.getValue();
107             minValue = Long.parseLong(param);
108             minValueMessage = constraint.getMessage();
109         }
110
111         constraint = (Constraint)paramMap.get("maxValue");
112         if ( constraint != null )
113         {
114             String JavaDoc param = constraint.getValue();
115             maxValue = Long.parseLong(param);
116             maxValueMessage = constraint.getMessage();
117         }
118     }
119
120     protected String JavaDoc getDefaultInvalidNumberMessage()
121     {
122         return INVALID_NUMBER;
123     }
124
125     /**
126      * Determine whether a testValue meets the criteria specified
127      * in the constraints defined for this validator
128      *
129      * @param testValue a <code>String</code> to be tested
130      * @exception ValidationException containing an error message if the
131      * testValue did not pass the validation tests.
132      */
133     protected void doAssertValidity(String JavaDoc testValue)
134         throws ValidationException
135     {
136         long i = 0;
137         try
138         {
139             i = Long.parseLong(testValue);
140         }
141         catch (RuntimeException JavaDoc e)
142         {
143             message = invalidNumberMessage;
144             throw new ValidationException(invalidNumberMessage);
145         }
146
147         if ( i < minValue )
148         {
149             message = minValueMessage;
150             throw new ValidationException(minValueMessage);
151         }
152         if ( i > maxValue )
153         {
154             message = maxValueMessage;
155             throw new ValidationException(maxValueMessage);
156         }
157     }
158
159
160     // ************************************************************
161 // ** Bean accessor methods **
162 // ************************************************************
163
164     /**
165      * Get the value of minValue.
166      * @return value of minValue.
167      */
168     public long getMinValue()
169     {
170         return minValue;
171     }
172
173     /**
174      * Set the value of minValue.
175      * @param v Value to assign to minValue.
176      */
177     public void setMinValue(long v)
178     {
179         this.minValue = v;
180     }
181
182     /**
183      * Get the value of maxValue.
184      * @return value of maxValue.
185      */
186     public long getMaxValue()
187     {
188         return maxValue;
189     }
190
191     /**
192      * Set the value of maxValue.
193      * @param v Value to assign to maxValue.
194      */
195     public void setMaxValue(long v)
196     {
197         this.maxValue = v;
198     }
199 }
200
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