datetimedv.java

来自「JAVA的一些源码 JAVA2 STANDARD EDITION DEVELO」· Java 代码 · 共 113 行

/*
 * The Apache Software License, Version 1.1
 *
 *
 * Copyright (c) 1999-2002 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    distribution.
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 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
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 * 4. The names "Xerces" and "Apache Software Foundation" must
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 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation and was
 * originally based on software copyright (c) 2001, International
 * Business Machines, Inc., http://www.apache.org.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */

package com.sun.org.apache.xerces.internal.impl.dv.xs;

import com.sun.org.apache.xerces.internal.impl.dv.InvalidDatatypeValueException;
import com.sun.org.apache.xerces.internal.impl.dv.ValidationContext;

/**
 * Validator for <dateTime> datatype (W3C Schema Datatypes)
 *
 * @author Elena Litani
 * @author Gopal Sharma, SUN Microsystem Inc.
 *
 * @version $Id: DateTimeDV.java,v 1.6 2002/11/18 23:10:10 sandygao Exp $
 */
public class DateTimeDV extends AbstractDateTimeDV {

    public Object getActualValue(String content, ValidationContext context) throws InvalidDatatypeValueException {
        try{
            return new DateTimeData(parse(content), this);
        } catch(Exception ex){
            throw new InvalidDatatypeValueException("cvc-datatype-valid.1.2.1", new Object[]{content, "dateTime"});
        }
    }

    /**
     * Parses, validates and computes normalized version of dateTime object
     *
     * @param str    The lexical representation of dateTime object CCYY-MM-DDThh:mm:ss.sss
     *               with possible time zone Z or (-),(+)hh:mm
     * @param date   uninitialized date object
     * @return normalized dateTime representation
     * @exception SchemaDateTimeException Invalid lexical representation
     */
    protected int[] parse(String str) throws SchemaDateTimeException {
        int len = str.length();
        int[] date = new int[TOTAL_SIZE];
        int[] timeZone = new int[2];

        int end = indexOf (str, 0, len, 'T');

        // both time and date
        getDate(str, 0, end, date);
        getTime(str, end+1, len, date, timeZone);

        //validate and normalize

        //REVISIT: do we need SchemaDateTimeException?
        validateDateTime(date, timeZone);

        if ( date[utc]!=0 && date[utc]!='Z') {
            normalize(date, timeZone);
        }
        return date;
    }

}