/*
* ============================================================================
* The Apache Software License, Version 1.1
* ============================================================================
*
* Copyright (C) 2002 The Apache Software Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modifica-
* tion, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The end-user documentation included with the redistribution, if any, must
* include the following acknowledgment: "This product includes software
* developed by SuperBonBon Industries (http://www.sbbi.net/)."
* Alternately, this acknowledgment may appear in the software itself, if
* and wherever such third-party acknowledgments normally appear.
*
* 4. The names "UPNPLib" and "SuperBonBon Industries" must not be
* used to endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* info@sbbi.net.
*
* 5. Products derived from this software may not be called
* "SuperBonBon Industries", nor may "SBBI" appear in their name,
* without prior written permission of SuperBonBon Industries.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT,INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
* DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 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 SuperBonBon Industries. For more information on
* SuperBonBon Industries, please see <http://www.sbbi.net/>.
*/
package net.sbbi.upnp.services;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.NoSuchElementException;
import java.util.StringTokenizer;
import java.util.TimeZone;
/**
* ISO8601 Date implementation taken from org.w3c package and modified
* to work with UPNP date types
* @author <a href="mailto:superbonbon@sbbi.net">SuperBonBon</a>
* @version 1.0
*/
public class ISO8601Date {
private static boolean check(StringTokenizer st, String token) throws NumberFormatException {
try {
if (st.nextToken().equals(token)) {
return true;
} else {
throw new NumberFormatException("Missing [" + token + "]");
}
} catch (NoSuchElementException ex) {
return false;
}
}
private static Calendar getCalendar( String isodate ) throws NumberFormatException {
// YYYY-MM-DDThh:mm:ss.sTZD or hh:mm:ss.sTZD
// does it contains a date ?
boolean isATime = isodate.indexOf( ':' ) != -1;
boolean isADate = isodate.indexOf( '-' ) != -1 || ( isodate.length() == 4 && !isATime );
if ( isATime && ! isADate ) {
if ( !isodate.toUpperCase().startsWith( "T" ) ) {
isodate = "T" + isodate;
}
}
StringTokenizer st = new StringTokenizer(isodate, "-T:.+Z", true);
Calendar calendar = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
calendar.clear();
if ( isADate ) {
// Year
if (st.hasMoreTokens()) {
int year = Integer.parseInt(st.nextToken());
calendar.set(Calendar.YEAR, year);
} else {
return calendar;
}
// Month
if (check(st, "-") && (st.hasMoreTokens())) {
int month = Integer.parseInt(st.nextToken()) - 1;
calendar.set(Calendar.MONTH, month);
} else {
return calendar;
}
// Day
if (check(st, "-") && (st.hasMoreTokens())) {
int day = Integer.parseInt(st.nextToken());
calendar.set(Calendar.DAY_OF_MONTH, day);
} else {
return calendar;
}
}
// Hour
if ( ( check(st, "T") ) && ( st.hasMoreTokens() ) ) {
int hour = Integer.parseInt(st.nextToken());
calendar.set(Calendar.HOUR_OF_DAY, hour);
} else {
calendar.set(Calendar.HOUR_OF_DAY, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);
return calendar;
}
// Minutes
if (check(st, ":") && (st.hasMoreTokens())) {
int minutes = Integer.parseInt(st.nextToken());
calendar.set(Calendar.MINUTE, minutes);
} else {
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);
return calendar;
}
//
// Not mandatory now
//
// Secondes
if (!st.hasMoreTokens()) {
return calendar;
}
String tok = st.nextToken();
if (tok.equals(":")) { // secondes
if (st.hasMoreTokens()) {
int secondes = Integer.parseInt(st.nextToken());
calendar.set(Calendar.SECOND, secondes);
if (!st.hasMoreTokens()) {
return calendar;
}
// frac sec
tok = st.nextToken();
if (tok.equals(".")) {
// bug fixed, thx to Martin Bottcher
String nt = st.nextToken();
while (nt.length() < 3) {
nt += "0";
}
nt = nt.substring(0, 3); // Cut trailing chars..
int millisec = Integer.parseInt(nt);
// int millisec = Integer.parseInt(st.nextToken()) * 10;
calendar.set(Calendar.MILLISECOND, millisec);
if (!st.hasMoreTokens()) {
return calendar;
}
tok = st.nextToken();
} else {
calendar.set(Calendar.MILLISECOND, 0);
}
} else {
throw new NumberFormatException("No secondes specified");
}
} else {
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);
}
// Timezone
if (!tok.equals("Z")) { // UTC
if (!(tok.equals("+") || tok.equals("-"))) {
throw new NumberFormatException("only Z, + or - allowed");
}
boolean plus = tok.equals("+");
if (!st.hasMoreTokens()) {
throw new NumberFormatException("Missing hour field");
}
int tzhour = Integer.parseInt(st.nextToken());
int tzmin = 0;
if (check(st, ":") && (st.hasMoreTokens())) {
tzmin = Integer.parseInt(st.nextToken());
} else {
throw new NumberFormatException("Missing minute field");
}
if (plus) {
calendar.add(Calendar.HOUR, -tzhour);
calendar.add(Calendar.MINUTE, -tzmin);
} else {
calendar.add(Calendar.HOUR, tzhour);
calendar.add(Calendar.MINUTE, tzmin);
}
}
return calendar;
}
/**
* Parse the given string in ISO 8601 format and build a Date object.
* @param isodate the date in ISO 8601 format
* @return a Date instance
* @exception InvalidDateException
* if the date is not valid
*/
public static Date parse(String isodate) throws NumberFormatException {
Calendar calendar = getCalendar(isodate);
return calendar.getTime();
}
private static String twoDigit(int i) {
if (i >= 0 && i < 10) {
return "0" + String.valueOf(i);
}
return String.valueOf(i);
}
/**
* Generate a ISO 8601 date
* @param date a Date instance
* @return a string representing the date in the ISO 8601 format
*/
public static String getIsoDate(Date date) {
Calendar calendar = new GregorianCalendar();
calendar.setTime(date);
StringBuffer buffer = new StringBuffer();
buffer.append(calendar.get(Calendar.YEAR));
buffer.append("-");
buffer.append(twoDigit(calendar.get(Calendar.MONTH) + 1));
buffer.append("-");
buffer.append(twoDigit(calendar.get(Calendar.DAY_OF_MONTH)));
return buffer.toString();
}
/**
* Generate a ISO 8601 date time without timezone
* @param date a Date instance
* @return a string representing the date in the ISO 8601 format
*/
public static String getIsoDateTime(Date date) {
Calendar calendar = new GregorianCalendar();
calendar.setTime(date);
StringBuffer buffer = new StringBuffer();
buffer.append(calendar.get(Calendar.YEAR));
buffer.append("-");
buffer.append(twoDigit(calendar.get(Calendar.MONTH) + 1));
buffer.append("-");
buffer.append(twoDigit(calendar.get(Calendar.DAY_OF_MONTH)));
buffer.append("T");
buffer.append(twoDigit(calendar.get(Calendar.HOUR_OF_DAY)));
buffer.append(":");
buffer.append(twoDigit(calendar.get(Calendar.MINUTE)));
buffer.append(":");
buffer.append(twoDigit(calendar.get(Calendar.SECOND)));
buffer.append(".");
buffer.append(twoDigit(calendar.get(Calendar.MILLISECOND) / 10));
return buffer.toString();
}
/**
* Generate a ISO 8601 date time with timezone
* @param date a Date instance
* @return a string representing the date in the ISO 8601 format
*/
public static String getIsoDateTimeZone(Date date) {
Calendar calendar = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
calendar.setTime(date);
StringBuffer buffer = new StringBuffer();
buffer.append(calendar.get(Calendar.YEAR));
buffer.append("-");
buffer.append(twoDigit(calendar.get(Calendar.MONTH) + 1));
buffer.append("-");
buffer.append(twoDigit(calendar.get(Calendar.DAY_OF_MONTH)));
buffer.append("T");
buffer.append(twoDigit(calendar.get(Calendar.HOUR_OF_DAY)));
buffer.append(":");
buffer.append(twoDigit(calendar.get(Calendar.MINUTE)));
buffer.append(":");
buffer.append(twoDigit(calendar.get(Calendar.SECOND)));
buffer.append(".");
buffer.append(twoDigit(calendar.get(Calendar.MILLISECOND) / 10));
buffer.append("Z");
return buffer.toString();
}
/**
* Generate a ISO 8601 time
* @param date a Date instance
* @return a string representing the date in the ISO 8601 format
*/
public static String getIsoTime(Date date) {
Calendar calendar = new GregorianCalendar();
calendar.setTime(date);
StringBuffer buffer = new StringBuffer();
buffer.append(twoDigit(calendar.get(Calendar.HOUR_OF_DAY)));
buffer.append(":");
buffer.append(twoDigit(calendar.get(Calendar.MINUTE)));
buffer.append(":");
buffer.append(twoDigit(calendar.get(Calendar.SECOND)));
buffer.append(".");
buffer.append(twoDigit(calendar.get(Calendar.MILLISECOND) / 10));
return buffer.toString();
}
/**
* Generate a ISO 8601 time
* @param date a Date instance
* @return a string representing the date in the ISO 8601 format
*/
public static String getIsoTimeZone(Date date) {
Calendar calendar = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
calendar.setTime(date);
StringBuffer buffer = new StringBuffer();
buffer.append(twoDigit(calendar.get(Calendar.HOUR_OF_DAY)));
buffer.append(":");
buffer.append(twoDigit(calendar.get(Calendar.MINUTE)));
buffer.append(":");
buffer.append(twoDigit(calendar.get(Calendar.SECOND)));
buffer.append(".");
buffer.append(twoDigit(calendar.get(Calendar.MILLISECOND) / 10));
buffer.append("Z");
return buffer.toString();
}
}