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Java > Open Source Codes > org > enhydra > apache > xerces > validators > datatype > DayDatatypeValidator


1
2 /*
3  * The Apache Software License, Version 1.1
4  *
5  *
6  * Copyright (c) 1999, 2000 The Apache Software Foundation. All rights
7  * reserved.
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25  * Alternately, this acknowledgment may appear in the software itself,
26  * if and wherever such third-party acknowledgments normally appear.
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28  * 4. The names "Xerces" and "Apache Software Foundation" must
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51  * This software consists of voluntary contributions made by many
52  * individuals on behalf of the Apache Software Foundation and was
53  * originally based on software copyright (c) 2001, International
54  * Business Machines, Inc., http://www.apache.org. For more
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56  * <http://www.apache.org/>.
57  */
58
59 package org.enhydra.apache.xerces.validators.datatype;
60
61 import java.util.Hashtable JavaDoc;
62
63 /**
64  * Validator for <gDay> datatype (W3C Schema datatypes)
65  *
66  * @author Elena Litani
67  * @version $Id: DayDatatypeValidator.java,v 1.1.1.1 2003/03/10 16:34:46 taweili Exp $
68  */
69
70 public class DayDatatypeValidator extends DateTimeValidator {
71
72     //size without time zone: ---09
73 private final static int DAY_SIZE=5;
74
75     public DayDatatypeValidator() throws InvalidDatatypeFacetException{
76         super();
77     }
78
79     public DayDatatypeValidator ( DatatypeValidator base, Hashtable JavaDoc facets,
80                                    boolean derivedByList ) throws InvalidDatatypeFacetException {
81         super(base, facets, derivedByList);
82     }
83
84     /**
85      * Parses, validates and computes normalized version of gDay object
86      *
87      * @param str The lexical representation of gDay object ---DD
88      * with possible time zone Z or (-),(+)hh:mm
89      * Pattern: ---(\\d\\d)(Z|(([-+])(\\d\\d)(:(\\d\\d))?
90      * @param date uninitialized date object
91      * @return normalized date representation
92      * @exception Exception Invalid lexical representation
93      */
94     protected int[] parse(String JavaDoc str, int[] date) throws SchemaDateTimeException{
95
96         resetBuffer(str);
97
98         //create structure to hold an object
99 if ( date== null ) {
100             date=new int[TOTAL_SIZE];
101         }
102         resetDateObj(date);
103         if (fBuffer.charAt(0)!='-' || fBuffer.charAt(1)!='-' || fBuffer.charAt(2)!='-') {
104             throw new SchemaDateTimeException ("Error in day parsing");
105         }
106
107         //initialize values
108 date[CY]=YEAR;
109         date[M]=MONTH;
110         
111         date[D]=parseInt(fStart+3,fStart+5);
112
113
114         if ( DAY_SIZE<fEnd ) {
115             int sign = findUTCSign(DAY_SIZE, fEnd);
116             if ( sign<0 ) {
117                 throw new SchemaDateTimeException ("Error in day parsing");
118             }
119             else {
120                 getTimeZone(date, sign);
121             }
122         }
123         //validate and normalize
124
125         //REVISIT: do we need SchemaDateTimeException?
126 validateDateTime(date);
127         
128         if ( date[utc]!=0 && date[utc]!='Z' ) {
129             normalize(date);
130         }
131         return date;
132     }
133
134     /**
135      * Converts gDay object representation to String
136      *
137      * @param date gDay object
138      * @return lexical representation of gDay: ---DD with an optional time zone sign
139      */
140     protected String JavaDoc dateToString(int[] date) {
141         message.setLength(0);
142         message.append('-');
143         message.append('-');
144         message.append('-');
145         message.append(date[D]);
146         message.append((char)date[utc]);
147         return message.toString();
148     }
149
150 }
151
152
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