/*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is the Kowari Metadata Store.
*
* The Initial Developer of the Original Code is Plugged In Software Pty
* Ltd (http://www.pisoftware.com, mailto:info@pisoftware.com). Portions
* created by Plugged In Software Pty Ltd are Copyright (C) 2001,2002
* Plugged In Software Pty Ltd. All Rights Reserved.
*
* Contributor(s): N/A.
*
* [NOTE: The text of this Exhibit A may differ slightly from the text
* of the notices in the Source Code files of the Original Code. You
* should use the text of this Exhibit A rather than the text found in the
* Original Code Source Code for Your Modifications.]
*
*/
package org.mulgara.store.stringpool.xa;
// Java 2 standard packages
import java.net.URI;
import java.nio.ByteBuffer;
import java.util.Date;
import java.util.Calendar;
// Third party packages
import org.apache.log4j.Logger;
// Locally written packages
import org.mulgara.query.rdf.XSD;
import org.mulgara.util.Timezone;
/**
* An SPObject that represents monthly Gregorian calendar days.
* Format: ---DD
*
* @created 2004-10-06
* @author Mark Ludlow
* @author Paula Gearon
* @copyright © 2004 <A href="http://www.PIsoftware.com/">Plugged In Software Pty Ltd</A>
* @licence <a href="{@docRoot}/../../LICENCE">Mozilla Public License v1.1</a>
*/
public final class SPGDayImpl extends AbstractSPGDateTime {
private final static Logger logger = Logger.getLogger(SPGDayImpl.class);
static final int TYPE_ID = 10; // Unique ID
/** URI for our gday representation */
static final URI TYPE_URI = XSD.GDAY_URI;
/** The number of dashes that appear without a timezone */
static private final int STD_DASHES = 3;
/**
* Constructs a new GDay representation using a calendar object representation.
* @param dayDate The gDay object represented as a date
*/
SPGDayImpl(Date dayDate) {
super(TYPE_ID, TYPE_URI, dayDate);
}
/**
* Constructs a new GDay representation using a calendar object representation.
* @param dayCalendar The gDay object represented as a calendar
*/
SPGDayImpl(Calendar dayCalendar, Timezone tz) {
super(TYPE_ID, TYPE_URI, dayCalendar, tz);
}
/**
*
* Constructs a gDay object which reads the day value from a byte buffer as an integer.
* @param data The byte buffer storing the day as an integer
*/
SPGDayImpl(ByteBuffer data) {
super(TYPE_ID, TYPE_URI, data);
}
/**
* Creates a new gDay representation using a long value of the day
* and creating a Date object from it.
* @param dayLong The day as a long
*/
SPGDayImpl(long dayLong) {
super(TYPE_ID, TYPE_URI, dayLong);
}
/**
* Constructs a new GDay object given the lexical form of a date.
*
* @param lexicalForm The lexical form of the GDay object
* @return A new SPGDay instance
*/
static SPGDayImpl newInstance(String lexicalForm) {
if (lexicalForm.length() < 5 || !lexicalForm.startsWith("---")) {
throw new IllegalArgumentException("Invalid gDay lexical format: " + lexicalForm);
}
String dateValue = lexicalForm.substring(3, 5);
// Parse the value to an integer
int dateInt;
try {
dateInt = Integer.parseInt(dateValue);
} catch (NumberFormatException e) {
throw new IllegalArgumentException("Invalid gDay lexical format: " + lexicalForm);
}
// Check that the value is valid
if (dateInt <= 0 || dateInt >= 32) {
throw new IllegalArgumentException("gDay value [" + lexicalForm + "] is not a valid day number.");
}
// Create a timezone for this object
Timezone tz = scanForTimezone(lexicalForm, STD_DASHES);
Calendar calendar = createCalendar(tz);
calendar.set(Calendar.DAY_OF_MONTH, dateInt);
if (logger.isDebugEnabled()) logger.debug("Day value before calendar is: " + dateInt);
// Create our object
return new SPGDayImpl(calendar, tz);
}
/**
* @see org.mulgara.store.stringpool.xa.AbstractSPGDateTime#getFormatString()
*/
protected String getFormatString() {
return "'---'dd";
}
}