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


1
2 /*
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4  *
5  *
6  * Copyright (c) 1999, 2000 The Apache Software Foundation. All rights
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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
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57  */

58
59 package org.enhydra.apache.xerces.validators.datatype;
60
61 import java.util.Hashtable JavaDoc;
62
63 /**
64  * Validator for <gMonthDay> datatype (W3C Schema Datatypes)
65  *
66  * @author Elena Litani
67  * @version $Id: MonthDayDatatypeValidator.java,v 1.1.1.1 2003/03/10 16:34:47 taweili Exp $
68  */

69
70 public class MonthDayDatatypeValidator extends DateTimeValidator {
71
72     //size without time zone: --MM-DD
73
private final static int MONTHDAY_SIZE = 7;
74
75     public MonthDayDatatypeValidator() throws InvalidDatatypeFacetException{
76         super();
77     }
78
79     public MonthDayDatatypeValidator ( 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 gMonthDay object
86      *
87      * @param str The lexical representation of gMonthDay object --MM-DD
88      * with possible time zone Z or (-),(+)hh:mm
89      * @param date uninitialized date object
90      * @return normalized date representation
91      * @exception Exception Invalid lexical representation
92      */

93     protected int[] parse(String JavaDoc str, int[] date) throws SchemaDateTimeException{
94
95         resetBuffer(str);
96
97         //create structure to hold an object
98
if ( date== null ) {
99             date=new int[TOTAL_SIZE];
100         }
101         resetDateObj(date);
102
103         //initialize
104
date[CY]=YEAR;
105
106         if (fBuffer.charAt(0)!='-' || fBuffer.charAt(1)!='-') {
107             throw new SchemaDateTimeException("Invalid format for gMonthDay: "+str);
108         }
109         date[M]=parseInt(fStart+2,fStart+4);
110         fStart+=4;
111         
112         if (fBuffer.charAt(fStart++)!='-') {
113             throw new SchemaDateTimeException("Invalid format for gMonthDay: " + str);
114         }
115         
116         date[D]=parseInt(fStart, fStart+2);
117
118         if ( MONTHDAY_SIZE<fEnd ) {
119             int sign = findUTCSign(MONTHDAY_SIZE, fEnd);
120             if ( sign<0 ) {
121                 throw new SchemaDateTimeException ("Error in month parsing:" +str);
122             }
123             else {
124                 getTimeZone(date, sign);
125             }
126         }
127         //validate and normalize
128

129         //REVISIT: do we need SchemaDateTimeException?
130
validateDateTime(date);
131         
132         if ( date[utc]!=0 && date[utc]!='Z' ) {
133             normalize(date);
134         }
135         return date;
136     }
137
138
139     /**
140      * Converts gMonthDay object representation to String
141      *
142      * @param date gmonthDay object
143      * @return lexical representation of month: --MM-DD with an optional time zone sign
144      */

145     protected String JavaDoc dateToString(int[] date) {
146         message.setLength(0);
147         message.append('-');
148         message.append('-');
149         message.append(date[M]);
150         message.append('-');
151         message.append(date[D]);
152         message.append((char)date[utc]);
153         return message.toString();
154     }
155
156 }
157
158
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