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