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1   /*
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3    * without modification, are permitted provided that the following conditions are met:
4    *
5    * 1. Redistributions of source code must retain copyright statements and notices. Redistributions
6    * must also contain a copy of this document.
7    *
8    * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
9    * conditions and the following disclaimer in the documentation and/or other materials provided with
10   * the distribution.
11   *
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14   * info@exolab.org.
15   *
16   * 4. Products derived from this Software may not be called "Exolab" nor may "Exolab" appear in
17   * their names without prior written permission of Intalio, Inc. Exolab is a registered trademark of
18   * Intalio, Inc.
19   *
20   * 5. Due credit should be given to the Exolab Project (http://www.exolab.org/).
21   *
22   * THIS SOFTWARE IS PROVIDED BY INTALIO, INC. AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESSED OR
23   * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
24   * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTALIO, INC. OR ITS
25   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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27   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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30   *
31   * Copyright 2000-2003 (C) Intalio, Inc. All Rights Reserved.
32   *
33   * $Id$ Date Author Changes 10/26/2000 Arnaud Blandin Created
34   */
35  package org.exolab.castor.xml.validators;
36  
37  import org.exolab.castor.xml.ValidationContext;
38  import org.exolab.castor.xml.ValidationException;
39  import org.exolab.castor.xml.TypeValidator;
40  import org.exolab.castor.types.Duration;
41  
42  /**
43   * The Duration Validation class. This class handles validation for the Castor XML Schema duration
44   * type.
45   *
46   * @author <a href="mailto:visco@intalio.com">Keith Visco</a>
47   * @author <a href="mailto:blandin@intalio.com">Arnaud Blandin</a>
48   * @version $Revision$ $Date: 2003-03-03 02:57:21 -0700 (Mon, 03 Mar 2003) $
49   */
50  public class DurationValidator extends PatternValidator implements TypeValidator {
51  
52    /** Maximum allowed value (Inclusive) for a valid instance. (null if not set.) */
53    private Duration _maxInclusive;
54    /** Maximum allowed value (Exclusive) for a valid instance. (null if not set.) */
55    private Duration _maxExclusive;
56    /** Minimum allowed value (Inclusive) for a valid instance. (null if not set.) */
57    private Duration _minInclusive;
58    /** Minimum allowed value (Exclusive) for a valid instance. (null if not set.) */
59    private Duration _minExclusive;
60    /** Fixed value. If not null, a valid duration instance MUST have this value. */
61    private Duration _fixed;
62  
63    /**
64     * No-arg constructor.
65     */
66    public DurationValidator() {
67      super();
68    } // -- TimeDurationValidator
69  
70    /**
71     * Clears the fixed value for this Duration.
72     */
73    public void clearFixed() {
74      _fixed = null;
75    } // -- clearFixed
76  
77    /**
78     * Clears the maximum value for this Duration.
79     */
80    public void clearMax() {
81      _maxInclusive = null;
82      _maxExclusive = null;
83    } // -- clearMax
84  
85    /**
86     * Clears the minimum value for this Duration.
87     */
88    public void clearMin() {
89      _minInclusive = null;
90      _minExclusive = null;
91    } // -- clearMin
92  
93    /**
94     * Returns the configured fixed value for Duration validation. Returns null if no fixed value has
95     * been configured.
96     *
97     * @return the fixed value to validate against.
98     */
99    public Duration getFixed() {
100     return _fixed;
101   } // -- getFixed
102 
103   /**
104    * Returns the configured inclusive maximum value for Duration validation. Returns null if no
105    * inclusive maximum has been configured.
106    *
107    * @return the inclusive maximum value to validate against.
108    */
109   public Duration getMaxInclusive() {
110     return _maxInclusive;
111   } // -- getMaxInclusive
112 
113   /**
114    * Returns the configured exclusive maximum value for Duration validation. Returns null if no
115    * exclusive maximum has been configured.
116    *
117    * @return the exclusive maximum value to validate against.
118    */
119   public Duration getMaxExclusive() {
120     return _maxExclusive;
121   } // -- getMaxInclusive
122 
123   /**
124    * Returns the configured inclusive minimum value for Duration validation. Returns null if no
125    * inclusive minimum has been configured.
126    *
127    * @return the inclusive minimum value to validate against.
128    */
129   public Duration getMinInclusive() {
130     return _minInclusive;
131   } // -- getMinInclusive
132 
133   /**
134    * Returns the configured exclusive minimum value for Duration validation. Returns null if no
135    * exclusive minimum has been configured.
136    *
137    * @return the exclusive minimum value to validate against.
138    */
139   public Duration getMinExclusive() {
140     return _minExclusive;
141   } // -- getMinInclusive
142 
143   /**
144    * Returns true if a fixed value to validate against has been set.
145    *
146    * @return true if a fixed value has been set.
147    */
148   public boolean hasFixed() {
149     return _fixed != null;
150   } // -- hasFixed
151 
152   /**
153    * Sets the fixed value for Duration validation.
154    * <p>
155    * NOTE: If maximum and/or minimum values have been set and the fixed value is not within that
156    * max/min range, then no Duration will pass validation. This is as according to the XML Schema
157    * spec.
158    *
159    * @param fixedValue the fixed value that a Duration validated with this validator must be equal
160    *        to.
161    */
162   public void setFixed(final Duration fixedValue) {
163     _fixed = fixedValue;
164   }
165 
166   /**
167    * Sets the minimum (exclusive) value for Duration validation. To pass validation, a Duration must
168    * be greater than this value.
169    *
170    * @param minValue the minimum (exclusive) value for Duration validation.
171    */
172   public void setMinExclusive(final Duration minValue) {
173     _minExclusive = minValue;
174     _minInclusive = null;
175   } // -- setMinExclusive
176 
177   /**
178    * Sets the minimum (inclusive) value for Duration validation. To pass validation, a Duration must
179    * be greater than or equal to this value.
180    *
181    * @param minValue the minimum (inclusive) value for Duration validation.
182    */
183   public void setMinInclusive(final Duration minValue) {
184     _minInclusive = minValue;
185     _minExclusive = null;
186   } // -- setMinInclusive
187 
188   /**
189    * Sets the maximum (exclusive) value for Duration validation. To pass validation, a Duration must
190    * be less than this value.
191    *
192    * @param maxValue the maximum (exclusive) value for Duration validation.
193    */
194   public void setMaxExclusive(final Duration maxValue) {
195     _maxExclusive = maxValue;
196     _maxInclusive = null;
197   } // -- setMaxExclusive
198 
199   /**
200    * Sets the maximum (inclusive) value for Duration validation. To pass validation, a Duration must
201    * be less than or equal to this value.
202    *
203    * @param maxValue the maximum (inclusive) value for Duration validation.
204    */
205   public void setMaxInclusive(final Duration maxValue) {
206     _maxInclusive = maxValue;
207     _maxExclusive = null;
208   } // -- setMaxInclusive
209 
210   /**
211    * Validate a duration instance.
212    * 
213    * @param duration the duration to validate
214    * @throws ValidationException if the duration fails validation
215    */
216   public void validate(final Duration duration) throws ValidationException {
217     validate(duration, (ValidationContext) null);
218   }
219 
220   /**
221    * Validates a duration instance.
222    * 
223    * @param duration the duration type to validate
224    * @param context the ValidationContext
225    * @throws ValidationException if the duration fails validation
226    */
227   public void validate(final Duration duration, final ValidationContext context)
228       throws ValidationException {
229     boolean isThereMinInclusive = (_minInclusive != null);
230     boolean isThereMinExclusive = (_minExclusive != null);
231     boolean isThereMaxInclusive = (_maxInclusive != null);
232     boolean isThereMaxExclusive = (_maxExclusive != null);
233 
234     if (isThereMinExclusive && isThereMinInclusive) {
235       throw new ValidationException("Both minInclusive and minExclusive are defined");
236     }
237 
238     if (isThereMaxExclusive && isThereMaxInclusive) {
239       throw new ValidationException("Both maxInclusive and maxExclusive are defined");
240     }
241 
242     if (_fixed != null && !duration.equal(_fixed)) {
243       String err = "Duration " + duration + " is not equal to the fixed value: " + _fixed;
244       throw new ValidationException(err);
245     }
246 
247     if (isThereMinInclusive && _minInclusive.isGreater(duration)) {
248       String err =
249           "Duration " + duration + " is less than the minimum allowed value: " + _minInclusive;
250       throw new ValidationException(err);
251     }
252 
253     if (isThereMinExclusive
254         && (_minExclusive.isGreater(duration) || duration.equals(_minExclusive))) {
255       String err = "Duration " + duration
256           + " is less than or equal to the minimum exclusive value: " + _minExclusive;
257       throw new ValidationException(err);
258     }
259 
260     if (isThereMaxInclusive && duration.isGreater(_maxInclusive)) {
261       String err =
262           "Duration " + duration + " is greater than the maximum allowed value " + _maxInclusive;
263       throw new ValidationException(err);
264     }
265 
266     if (isThereMaxExclusive
267         && ((duration.isGreater(_maxExclusive)) || duration.equals(_maxExclusive))) {
268       String err = "Duration " + duration
269           + " is greater than or equal to the maximum exclusive value: " + _maxExclusive;
270       throw new ValidationException(err);
271     }
272 
273     if (hasPattern()) {
274       super.validate(duration.toString(), context);
275     }
276   } // -- validate
277 
278   /**
279    * Validates the given Object.
280    *
281    * @param object the Object to validate
282    * @throws ValidationException if the object fails validation
283    */
284   public void validate(final Object object) throws ValidationException {
285     validate(object, (ValidationContext) null);
286   } // -- validate
287 
288   /**
289    * Validates the given Object.
290    *
291    * @param object the Object to validate
292    * @param context the ValidationContext
293    * @throws ValidationException if the object fails validation
294    */
295   public void validate(final Object object, final ValidationContext context)
296       throws ValidationException {
297     if (object == null) {
298       String err = "durationValidator cannot validate a null object.";
299       throw new ValidationException(err);
300     }
301 
302     if (object instanceof String) {
303       try {
304         Duration duration = Duration.parseDuration((String) object);
305         validate(duration, context);
306         return;
307       } catch (java.text.ParseException pe) {
308         String err = "String provided fails to parse into a Duration: " + (String) object;
309         throw new ValidationException(err, pe);
310       }
311     }
312 
313     Duration value = null;
314     try {
315       value = (Duration) object;
316     } catch (Exception ex) {
317       String err = "Expecting a duration, received instead: " + object.getClass().getName();
318       throw new ValidationException(err);
319     }
320 
321     validate(value, context);
322   } // -- validate
323 
324 }