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1 package org.jbpm.calendar;
2
3 import java.io.Serializable  ;
4 import java.util.Calendar ;
5 import java.util.Date ;
6 import java.util.GregorianCalendar ;
7 import java.util.Iterator ;
8 import java.util.List ;
9 import java.util.Properties ;
10
11 import org.jbpm.instantiation.ClassLoaderUtil;
12
13
16 public class BusinessCalendar implements Serializable {
17
18 private static final long serialVersionUID = 1L;
19
20 Day[] weekDays = null;
21 List holidays = null;
22
23 private static Properties businessCalendarProperties = null;
24 public static Properties getBusinessCalendarProperties() {
25 if (businessCalendarProperties==null) {
26 businessCalendarProperties = ClassLoaderUtil.getProperties("jbpm.business.calendar.properties", "org/jbpm/calendar");
27 }
28 return businessCalendarProperties;
29 }
30
31 public BusinessCalendar() {
32 try {
33 Properties calendarProperties = getBusinessCalendarProperties();
34 weekDays = Day.parseWeekDays(calendarProperties, this);
35 holidays = Holiday.parseHolidays(calendarProperties, this);
36
37 } catch (Exception e) {
38 throw new RuntimeException ("couldn't create business calendar", e);
39 }
40 }
41
42 public Date add(Date date, Duration duration) {
43 Date end = null;
44 if (duration.isBusinessTime) {
45 DayPart dayPart = findDayPart(date);
46 boolean isInbusinessHours = (dayPart!=null);
47 if (! isInbusinessHours) {
48 Object [] result = new Object [2];
49 findDay(date).findNextDayPartStart(0, date, result);
50 date = (Date ) result[0];
51 dayPart = (DayPart) result[1];
52 }
53 end = dayPart.add(date, duration);
54 } else {
55 end = new Date (date.getTime()+duration.milliseconds);
56 }
57 return end;
58 }
59
60 public DayPart findNextDayPart(Date date) {
61 DayPart nextDayPart = null;
62 while(nextDayPart==null) {
63 nextDayPart = findDayPart(date);
64 if (nextDayPart==null) {
65 date = findStartOfNextDay(date);
66 }
67 }
68 return nextDayPart;
69 }
70
71
72 public Date findStartOfNextDay(Date date) {
73 Calendar calendar = getCalendar();
74 calendar.setTime(date);
75 calendar.add(Calendar.DATE, 1);
76 calendar.set(Calendar.HOUR_OF_DAY, 0);
77 calendar.set(Calendar.MINUTE, 0);
78 calendar.set(Calendar.SECOND, 0);
79 calendar.set(Calendar.MILLISECOND, 0);
80 date = calendar.getTime();
81 while(isHoliday(date)) {
82 calendar.setTime(date);
83 calendar.add(Calendar.DATE, 1);
84 date = calendar.getTime();
85 }
86 return date;
87 }
88
89 public Day findDay(Date date) {
90 Calendar calendar = getCalendar();
91 calendar.setTime(date);
92 return weekDays[calendar.get(Calendar.DAY_OF_WEEK)];
93 }
94
95 public boolean isHoliday(Date date) {
96 Iterator iter = holidays.iterator();
97 while (iter.hasNext()) {
98 Holiday holiday = (Holiday) iter.next();
99 if (holiday.includes(date)) {
100 return true;
101 }
102 }
103 return false;
104 }
105
106 private DayPart findDayPart(Date date) {
107 DayPart dayPart = null;
108 if (! isHoliday(date)) {
109 Day day = findDay(date);
110 for (int i=0; ((i < day.dayParts.length)
111 && (dayPart==null)); i++) {
112 DayPart candidate = day.dayParts[i];
113 if (candidate.includes(date)) {
114 dayPart = candidate;
115 }
116 }
117 }
118 return dayPart;
119 }
120
121 public boolean isInBusinessHours(Date date) {
122 return (findNextDayPart(date)!=null);
123 }
124
125 public static Calendar getCalendar() {
126 return new GregorianCalendar ();
127 }
128 }
129 |
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