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


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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 import com.sun.org.apache.xerces.internal.impl.dv.ValidationContext;
62
63 /**
64  * Validator for <gDay> datatype (W3C Schema datatypes)
65  *
66  * @author Elena Litani
67  * @author Gopal Sharma, SUN Microsystem Inc.
68  * @version $Id: DayDV.java,v 1.7 2003/01/16 18:34:04 sandygao Exp $
69  */

70 public class DayDV extends AbstractDateTimeDV {
71
72     //size without time zone: ---09
73
private final static int DAY_SIZE=5;
74
75     public Object JavaDoc getActualValue(String JavaDoc content, ValidationContext context) throws InvalidDatatypeValueException {
76         try{
77             return new DateTimeData(parse(content), this);
78         } catch(Exception JavaDoc ex){
79             throw new InvalidDatatypeValueException("cvc-datatype-valid.1.2.1", new Object JavaDoc[]{content, "gDay"});
80         }
81     }
82
83     /**
84      * Parses, validates and computes normalized version of gDay object
85      *
86      * @param str The lexical representation of gDay object ---DD
87      * with possible time zone Z or (-),(+)hh:mm
88      * Pattern: ---(\\d\\d)(Z|(([-+])(\\d\\d)(:(\\d\\d))?
89      * @param date uninitialized date object
90      * @return normalized date representation
91      * @exception SchemaDateTimeException Invalid lexical representation
92      */

93     protected int[] parse(String JavaDoc str) throws SchemaDateTimeException {
94         int len = str.length();
95         int[] date=new int[TOTAL_SIZE];
96         int[] timeZone = new int[2];
97
98         if (str.charAt(0)!='-' || str.charAt(1)!='-' || str.charAt(2)!='-') {
99             throw new SchemaDateTimeException ("Error in day parsing");
100         }
101
102         //initialize values
103
date[CY]=YEAR;
104         date[M]=MONTH;
105
106         date[D]=parseInt(str, 3,5);
107
108         if ( DAY_SIZE<len ) {
109             int sign = findUTCSign(str, DAY_SIZE, len);
110             if ( sign<0 ) {
111                 throw new SchemaDateTimeException ("Error in day parsing");
112             }
113             else {
114                 getTimeZone(str, date, sign, len, timeZone);
115             }
116         }
117
118        //validate and normalize
119
validateDateTime(date, timeZone);
120
121         if ( date[utc]!=0 && date[utc]!='Z' ) {
122             normalize(date, timeZone);
123         }
124         return date;
125     }
126
127     /**
128      * Converts gDay object representation to String
129      *
130      * @param date gDay object
131      * @return lexical representation of gDay: ---DD with an optional time zone sign
132      */

133     protected String JavaDoc dateToString(int[] date) {
134         StringBuffer JavaDoc message = new StringBuffer JavaDoc(6);
135         message.append('-');
136         message.append('-');
137         message.append('-');
138         append(message, date[D], 2);
139         append(message, (char)date[utc], 0);
140         return message.toString();
141     }
142
143 }
144
145
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