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Java > Open Source Codes > com > sun > org > apache > xerces > internal > impl > dv > xs > DateDV


1 /*
2  * The Apache Software License, Version 1.1
3  *
4  *
5  * Copyright (c) 1999-2002 The Apache Software Foundation. All rights
6  * reserved.
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8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright
13  * notice, this list of conditions and the following disclaimer.
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16  * notice, this list of conditions and the following disclaimer in
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20  * 3. The end-user documentation included with the redistribution,
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22  * "This product includes software developed by the
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24  * Alternately, this acknowledgment may appear in the software itself,
25  * if and wherever such third-party acknowledgments normally appear.
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27  * 4. The names "Xerces" and "Apache Software Foundation" must
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29  * software without prior written permission. For written
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44  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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50  * This software consists of voluntary contributions made by many
51  * individuals on behalf of the Apache Software Foundation and was
52  * originally based on software copyright (c) 2001, International
53  * Business Machines, Inc., http://www.apache.org. For more
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57
58 package com.sun.org.apache.xerces.internal.impl.dv.xs;
59
60 import com.sun.org.apache.xerces.internal.impl.dv.InvalidDatatypeValueException;
61
62 /**
63  * Validator for <date> datatype (W3C Schema datatypes)
64  *
65  * @author Elena Litani
66  * @author Gopal Sharma, SUN Microsystems Inc.
67  *
68  * @version $Id: DateDV.java,v 1.9 2003/05/08 20:11:55 elena Exp $
69  */

70 public class DateDV extends DateTimeDV {
71
72     public Object JavaDoc getActualValue(String JavaDoc content) throws InvalidDatatypeValueException {
73         try{
74             return new DateTimeData(parse(content), this);
75         } catch(Exception JavaDoc ex){
76             throw new InvalidDatatypeValueException("cvc-datatype-valid.1.2.1", new Object JavaDoc[]{content, "date"});
77         }
78     }
79
80     /**
81      * Parses, validates and computes normalized version of dateTime object
82      *
83      * @param str The lexical representation of dateTime object CCYY-MM-DD
84      * with possible time zone Z or (-),(+)hh:mm
85      * @param date uninitialized date object
86      * @return normalized dateTime representation
87      * @exception SchemaDateTimeException Invalid lexical representation
88      */

89     protected int[] parse(String JavaDoc str) throws SchemaDateTimeException{
90         int len = str.length();
91         int[] date = new int[TOTAL_SIZE];
92         int[] timeZone = new int[2];
93
94         int end = getDate(str, 0, len, date);
95         parseTimeZone (str, end, len, date, timeZone);
96
97         //validate and normalize
98
//REVISIT: do we need SchemaDateTimeException?
99
validateDateTime(date, timeZone);
100
101         if ( date[utc]!=0 && date[utc]!='Z' ) {
102             normalize(date, timeZone);
103         }
104         return date;
105     }
106
107     protected String JavaDoc dateToString(int[] date) {
108         StringBuffer JavaDoc message = new StringBuffer JavaDoc(25);
109         append(message, date[CY], 4);
110         message.append('-');
111         append(message, date[M], 2);
112         message.append('-');
113         append(message, date[D], 2);
114         append(message, (char)date[utc], 0);
115         return message.toString();
116     }
117
118 }
119
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