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


1 /*
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5  * Copyright (c) 1999-2002 The Apache Software Foundation. All rights
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52  * originally based on software copyright (c) 2001, International
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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 <gYearMonth> datatype (W3C Schema Datatypes)
65  *
66  * @author Elena Litani
67  * @author Gopal Sharma, SUN Microsystem Inc.
68  *
69  * @version $Id: YearMonthDV.java,v 1.7 2003/01/16 18:34:04 sandygao Exp $
70  */

71 public class YearMonthDV extends AbstractDateTimeDV{
72
73     /**
74      * Convert a string to a compiled form
75      *
76      * @param content The lexical representation of gYearMonth
77      * @return a valid and normalized gYearMonth object
78      */

79     public Object JavaDoc getActualValue(String JavaDoc content, ValidationContext context) throws InvalidDatatypeValueException{
80         try{
81             return new DateTimeData(parse(content), this);
82         } catch(Exception JavaDoc ex){
83             throw new InvalidDatatypeValueException("cvc-datatype-valid.1.2.1", new Object JavaDoc[]{content, "gYearMonth"});
84         }
85     }
86
87     /**
88      * Parses, validates and computes normalized version of gYearMonth object
89      *
90      * @param str The lexical representation of gYearMonth object CCYY-MM
91      * with possible time zone Z or (-),(+)hh:mm
92      * @param date uninitialized date object
93      * @return normalized date representation
94      * @exception SchemaDateTimeException Invalid lexical representation
95      */

96     protected int[] parse(String JavaDoc str) throws SchemaDateTimeException{
97         int len = str.length();
98         int[] date = new int[TOTAL_SIZE];
99         int[] timeZone = new int[2];
100
101         // get date
102
int end = getYearMonth(str, 0, len, date);
103         date[D] = DAY;
104         parseTimeZone (str, end, len, date, timeZone);
105
106         //validate and normalize
107

108         validateDateTime(date, timeZone);
109
110         if ( date[utc]!=0 && date[utc]!='Z' ) {
111             normalize(date, timeZone);
112         }
113         return date;
114     }
115
116     protected String JavaDoc dateToString(int[] date) {
117         StringBuffer JavaDoc message = new StringBuffer JavaDoc(25);
118         append(message, date[CY], 4);
119         message.append('-');
120         append(message, date[M], 2);
121         append(message, (char)date[utc], 0);
122         return message.toString();
123     }
124
125 }
126
127
128
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