src/com/morphoss/acal/davacal/RecurrenceId.java

   1 /*
   2  * Copyright (C) 2011 Morphoss Ltd
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 package com.morphoss.acal.davacal;
  20
  21 import java.util.Comparator;
  22
  23 import com.morphoss.acal.acaltime.AcalDateTime;
  24
  25 public class RecurrenceId extends AcalProperty implements Comparable<RecurrenceId>{
  26
  27         public final AcalDateTime       when;
  28         public final boolean            andFuture;
  29
  30         protected RecurrenceId(String name, String value, String[] paramsBlob) {
  31                 super(name,value,paramsBlob);
  32                 when = AcalDateTime.fromIcalendar(getValue(),getParam("VALUE"), getParam("TZID"));
  33                 andFuture = (getParam("RANGE") != null && getParam("RANGE").equalsIgnoreCase("THISANDFUTURE"));
  34         }
  35
  36         public static RecurrenceId fromString(String blob) {
  37                 AcalProperty ret = AcalProperty.fromString(blob);
  38                 if ( ret instanceof RecurrenceId ) return (RecurrenceId) ret;
  39                 throw new IllegalArgumentException();
  40         }
  41
  42         public int compareTo(RecurrenceId another) {
  43                 if ( when.before(another.when) ) return -1;
  44                 else if ( when.after(another.when) ) return 1;
  45                 return 0;
  46         }
  47
  48         public static Comparator<VComponent> getVComponentComparatorByRecurrenceId() {
  49                 return new VComponentComparatorByRecurrenceId();
  50         }
  51
  52         public boolean equals(RecurrenceId rid) {
  53                 if ( when == null && rid.when == null ) return true;
  54                 return when.equals(rid.when);
  55         }
  56
  57         public boolean notAfter(RecurrenceId rid) {
  58                 if ( rid.andFuture && !when.after(rid.when) ) return true;
  59                 return when.equals(rid.when);
  60         }
  61
  62         public static class VComponentComparatorByRecurrenceId implements Comparator<VComponent> {
  63
  64                 public int compare(VComponent a, VComponent b) {
  65                         RecurrenceId recA = (RecurrenceId)a.getProperty("RECURRENCE-ID");
  66                         RecurrenceId recB = (RecurrenceId)b.getProperty("RECURRENCE-ID");
  67                         return recA.compareTo(recB);
  68                 }
  69         }
  70
  71 }