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1   /*
2    * $Id: Time.java [05-Apr-2004]
3    *
4    * Copyright (c) 2004, Ben Fortuna
5    * All rights reserved.
6    *
7    * Redistribution and use in source and binary forms, with or without
8    * modification, are permitted provided that the following conditions
9    * are met:
10   *
11   * 	o Redistributions of source code must retain the above copyright
12   * notice, this list of conditions and the following disclaimer.
13   *
14   * 	o Redistributions in binary form must reproduce the above copyright
15   * notice, this list of conditions and the following disclaimer in the
16   * documentation and/or other materials provided with the distribution.
17   *
18   * 	o Neither the name of Ben Fortuna nor the names of any other contributors
19   * may be used to endorse or promote products derived from this software
20   * without specific prior written permission.
21   *
22   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
25   * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
26   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
27   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
28   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
29   * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
30   * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
31   * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
32   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33   */
34  package net.fortuna.ical4j.model.component;
35  
36  import net.fortuna.ical4j.model.Component;
37  import net.fortuna.ical4j.model.Property;
38  import net.fortuna.ical4j.model.PropertyList;
39  import net.fortuna.ical4j.model.ValidationException;
40  import net.fortuna.ical4j.util.PropertyValidator;
41  
42  /***
43   * Defines an iCalendar timezone type component. Class made abstract such that
44   * only Standard and Daylight instances are valid.
45   *
46   * @author benf
47   */
48  public abstract class Time extends Component {
49  
50      /***
51       * one of 'standardc' or 'daylightc' MUST occur and each MAY occur more than
52       * once.
53       */
54      public static final String STANDARD = "STANDARD";
55  
56      public static final String DAYLIGHT = "DAYLIGHT";
57  
58      /***
59       * Constructor protected to enforce use of sub-classes
60       * from this library.
61       * @param name the name of the time type
62       * @param aList a list of properties
63       */
64      protected Time(final String name, final PropertyList aList) {
65  
66          super(name, aList);
67      }
68  
69      /***
70       * @see net.fortuna.ical4j.model.Component#validate(boolean)
71       */
72      public final void validate(boolean recurse) throws ValidationException {
73  
74          /*
75  
76                  ; the following are each REQUIRED,
77                  ; but MUST NOT occur more than once
78  
79                  dtstart / tzoffsetto / tzoffsetfrom /
80           */
81          PropertyValidator.getInstance().validateOne(Property.DTSTART,
82                  getProperties());
83          PropertyValidator.getInstance().validateOne(Property.TZOFFSETTO,
84                  getProperties());
85          PropertyValidator.getInstance().validateOne(Property.TZOFFSETFROM,
86                  getProperties());
87  
88          /*
89  
90                  ; the following are optional,
91                  ; and MAY occur more than once
92  
93                  comment / rdate / rrule / tzname / x-prop
94           */
95          
96          if (recurse) {
97              validateProperties();
98          }
99      }
100 }