Mercurial > dive4elements > river
view flys-backend/src/main/java/de/intevation/flys/utils/DateGuesser.java @ 4573:b87073a05f9d
flys-client: Patch to render combobox options as clickable links.
The way of passing data arguments to the links and further to
the Artifact feeding service is somewhat hacked and should be
refactored (later...).
author | Christian Lins <christian.lins@intevation.de> |
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date | Tue, 27 Nov 2012 12:50:10 +0100 |
parents | 2e18e12fac11 |
children | 8195396b23ce |
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package de.intevation.flys.utils; /** * Copyright (c) 2006 by Intevation GmbH * * @author Sascha L. Teichmann (teichmann@intevation.de) * * This program is free software under the LGPL (>=v2.1) * Read the file LGPL coming with FLYS for details. */ import java.util.Date; import java.util.Calendar; import java.util.regex.Pattern; import java.util.regex.Matcher; public final class DateGuesser { public static final String [] MONTH = { "jan", "feb", "mrz", "apr", "mai", "jun", "jul", "aug", "sep", "okt", "nov", "dez" }; public static final int guessMonth(String s) { s = s.toLowerCase(); for (int i = 0; i < MONTH.length; ++i) if (MONTH[i].equals(s)) { return i; } return -1; } public static final Pattern YYYY_MM_DD = Pattern.compile("^(\\d{4})-(\\d{2})-(\\d{2})$"); public static final Pattern DD_MM_YYYY = Pattern.compile("^(\\d{1,2})\\.(\\d{1,2})\\.(\\d{2,4})$"); public static final Pattern MMM_YYYY = Pattern.compile("^(\\d{0,2})\\.?(\\w{3})\\.?(\\d{2,4})$"); public static final Pattern GARBAGE_YYYY = Pattern.compile("^\\D*(\\d{2,4})$"); public static final Pattern YYYY_MM_DDThh_mm = Pattern.compile("^(\\d{4})-(\\d{2})-(\\d{2})T(\\d{2}):(\\d{2})$"); public static final Pattern YYYY_MM_DDThh_mm_ss = Pattern.compile("^(\\d{4})-(\\d{2})-(\\d{2})T(\\d{2}):(\\d{2}):(\\d{2})$"); public static final Pattern DD_MM_YYYYThh_mm = Pattern.compile("^(\\d{1,2})\\.(\\d{1,2})\\.(\\d{2,4})T(\\d{1,2}):(\\d{2})$"); public static final Pattern DD_MM_YYYYThh_mm_ss = Pattern.compile("^(\\d{1,2})\\.(\\d{1,2})\\.(\\d{2,4})T(\\d{1,2}):(\\d{2}):(\\d{2})$"); private DateGuesser() { } public static final int calendarMonth(String month) { return calendarMonth(Integer.parseInt(month)); } public static final int calendarMonth(int month) { return Math.max(Math.min(month-1, 11), 0); } public static Date guessDate(String s) { if (s == null || (s = s.trim()).length() == 0) { throw new IllegalArgumentException(); } Matcher m; m = YYYY_MM_DD.matcher(s); if (m.matches()) { Calendar cal = Calendar.getInstance(); String year = m.group(1); String month = m.group(2); String day = m.group(3); cal.set( Integer.parseInt(year), calendarMonth(month), Integer.parseInt(day), 12, 0, 0); return cal.getTime(); } m = DD_MM_YYYY.matcher(s); if (m.matches()) { Calendar cal = Calendar.getInstance(); String year = m.group(3); String month = m.group(2); String day = m.group(1); cal.set( Integer.parseInt(year) + (year.length() == 2 ? 1900 : 0), calendarMonth(month), Integer.parseInt(m.group(1)), 12, 0, 0); return cal.getTime(); } m = MMM_YYYY.matcher(s); if (m.matches()) { int month = guessMonth(m.group(2)); if (month >= 0) { Calendar cal = Calendar.getInstance(); String year = m.group(3); String day = m.group(1); cal.set( Integer.parseInt(year) + (year.length() == 2 ? 1900 : 0), month, day.length() == 0 ? 15 : Integer.parseInt(day), 12, 0, 0); return cal.getTime(); } } m = YYYY_MM_DDThh_mm.matcher(s); if (m.matches()) { Calendar cal = Calendar.getInstance(); String year = m.group(1); String month = m.group(2); String day = m.group(3); String hour = m.group(4); String minute = m.group(5); cal.set( Integer.parseInt(year), calendarMonth(month), Integer.parseInt(day), Integer.parseInt(hour), Integer.parseInt(minute), 0 ); return cal.getTime(); } m = YYYY_MM_DDThh_mm_ss.matcher(s); if (m.matches()) { Calendar cal = Calendar.getInstance(); String year = m.group(1); String month = m.group(2); String day = m.group(3); String hour = m.group(4); String minute = m.group(5); String second = m.group(6); cal.set( Integer.parseInt(year), calendarMonth(month), Integer.parseInt(day), Integer.parseInt(hour), Integer.parseInt(minute), Integer.parseInt(second) ); return cal.getTime(); } m = DD_MM_YYYYThh_mm.matcher(s); if (m.matches()) { Calendar cal = Calendar.getInstance(); String year = m.group(3); String month = m.group(2); String day = m.group(1); String hour = m.group(4); String minute = m.group(5); cal.set( Integer.parseInt(year) + (year.length() == 2 ? 1900 : 0), calendarMonth(month), Integer.parseInt(day), Integer.parseInt(hour), Integer.parseInt(minute), 0 ); return cal.getTime(); } m = DD_MM_YYYYThh_mm_ss.matcher(s); if (m.matches()) { Calendar cal = Calendar.getInstance(); String year = m.group(3); String month = m.group(2); String day = m.group(1); String hour = m.group(4); String minute = m.group(5); String second = m.group(6); cal.set( Integer.parseInt(year) + (year.length() == 2 ? 1900 : 0), calendarMonth(month), Integer.parseInt(day), Integer.parseInt(hour), Integer.parseInt(minute), Integer.parseInt(second) ); return cal.getTime(); } m = GARBAGE_YYYY.matcher(s); if (m.matches()) { Calendar cal = Calendar.getInstance(); String year = m.group(1); cal.set( Integer.parseInt(year) + (year.length() == 2 ? 1900 : 0), 5, // month 15, // day 12, 0, 0); return cal.getTime(); } throw new IllegalArgumentException(); } public static void main(String [] args) { for (int i = 0; i < args.length; ++i) { System.out.println(args[i] + ": " + guessDate(args[i])); } } } // end of file