Here you can find the source of convertToDateTime(String source)
| Parameter | Description |
|---|---|
| source | a parameter |
public static Calendar convertToDateTime(String source)
//package com.java2s; /*/*from ww w . j a v a2s. c om*/ * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. */ import java.util.Calendar; import java.util.Date; import java.util.GregorianCalendar; import java.util.TimeZone; public class Main { /** * Code from Axis1 code base Note - We only follow the convention in the latest schema spec * * @param source * @return Returns Calendar. */ public static Calendar convertToDateTime(String source) { if ((source == null) || source.trim().equals("")) { return null; } source = source.trim(); // the lexical representation of the date time as follows // '-'? yyyy '-' mm '-' dd 'T' hh ':' mm ':' ss ('.' s+)? (zzzzzz)? Date date = null; Calendar calendar = Calendar.getInstance(); calendar.clear(); calendar.setLenient(false); if (source.startsWith("-")) { source = source.substring(1); calendar.set(Calendar.ERA, GregorianCalendar.BC); } int year = 0; int month = 0; int day = 0; int hour = 0; int minite = 0; int second = 0; long miliSecond = 0; int timeZoneOffSet = TimeZone.getDefault().getRawOffset(); boolean haveTimeZone; if ((source != null) && (source.length() >= 19)) { if ((source.charAt(4) != '-') || (source.charAt(7) != '-') || (source.charAt(10) != 'T') || (source.charAt(13) != ':') || (source.charAt(16) != ':')) { throw new RuntimeException("invalid date format (" + source + ") with out - s at correct place "); } year = Integer.parseInt(source.substring(0, 4)); month = Integer.parseInt(source.substring(5, 7)); day = Integer.parseInt(source.substring(8, 10)); hour = Integer.parseInt(source.substring(11, 13)); minite = Integer.parseInt(source.substring(14, 16)); second = Integer.parseInt(source.substring(17, 19)); int milliSecondPartLength = 0; if (source.length() == 19) { haveTimeZone = false; } else { String rest = source.substring(19); if (rest.startsWith(".")) { // i.e this have the ('.'s+) part if (rest.endsWith("Z")) { // this is in gmt time zone haveTimeZone = true; timeZoneOffSet = 0; calendar.setTimeZone(TimeZone.getTimeZone("GMT")); miliSecond = Integer.parseInt(rest.substring(1, rest.lastIndexOf("Z"))); milliSecondPartLength = rest.substring(1, rest.lastIndexOf("Z")).trim().length(); } else if ((rest.lastIndexOf("+") > 0) || (rest.lastIndexOf("-") > 0)) { // this is given in a general time zione haveTimeZone = true; String timeOffSet = null; if (rest.lastIndexOf("+") > 0) { timeOffSet = rest.substring(rest.lastIndexOf("+") + 1); miliSecond = Integer.parseInt(rest.substring(1, rest.lastIndexOf("+"))); milliSecondPartLength = rest.substring(1, rest.lastIndexOf("+")).trim().length(); // we keep +1 or -1 to finally calculate the value timeZoneOffSet = 1; } else if (rest.lastIndexOf("-") > 0) { timeOffSet = rest.substring(rest.lastIndexOf("-") + 1); miliSecond = Integer.parseInt(rest.substring(1, rest.lastIndexOf("-"))); milliSecondPartLength = rest.substring(1, rest.lastIndexOf("-")).trim().length(); // we keep +1 or -1 to finally calculate the value timeZoneOffSet = -1; } if (timeOffSet.charAt(2) != ':') { throw new RuntimeException( "invalid time zone format (" + source + ") without : at correct place"); } int hours = Integer.parseInt(timeOffSet.substring(0, 2)); int minits = Integer.parseInt(timeOffSet.substring(3, 5)); timeZoneOffSet = ((hours * 60) + minits) * 60000 * timeZoneOffSet; } else { // i.e it does not have time zone haveTimeZone = false; miliSecond = Integer.parseInt(rest.substring(1)); milliSecondPartLength = rest.substring(1).trim().length(); } } else { if (rest.startsWith("Z")) { calendar.setTimeZone(TimeZone.getTimeZone("GMT")); // this is in gmt time zone haveTimeZone = true; timeZoneOffSet = 0; } else if (rest.startsWith("+") || rest.startsWith("-")) { // this is given in a general time zione haveTimeZone = true; if (rest.charAt(3) != ':') { throw new RuntimeException( "invalid time zone format (" + source + ") without : at correct place"); } int hours = Integer.parseInt(rest.substring(1, 3)); int minits = Integer.parseInt(rest.substring(4, 6)); timeZoneOffSet = ((hours * 60) + minits) * 60000; if (rest.startsWith("-")) { timeZoneOffSet = timeZoneOffSet * -1; } } else { throw new NumberFormatException("in valid time zone attribute"); } } } calendar.set(Calendar.YEAR, year); // xml month is started from 1 and calendar month is started from 0 calendar.set(Calendar.MONTH, month - 1); calendar.set(Calendar.DAY_OF_MONTH, day); calendar.set(Calendar.HOUR_OF_DAY, hour); calendar.set(Calendar.MINUTE, minite); calendar.set(Calendar.SECOND, second); if (milliSecondPartLength != 3) { // milisecond part represenst the fraction of the second so we have to // find the fraction and multiply it by 1000. So if milisecond part // has three digits nothing required miliSecond = miliSecond * 1000; for (int i = 0; i < milliSecondPartLength; i++) { miliSecond = miliSecond / 10; } } calendar.set(Calendar.MILLISECOND, (int) miliSecond); calendar.set(Calendar.ZONE_OFFSET, timeZoneOffSet); // set the day light offset only if the time zone is present // set the day light offset only if the time zone is present if (haveTimeZone) { calendar.set(Calendar.DST_OFFSET, 0); } } else { throw new NumberFormatException("date string can not be less than 19 characters"); } return calendar; } }