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1 package org.oddjob.schedules.schedules;
2
3 import java.io.Serializable  ;
4 import java.text.ParseException ;
5 import java.text.SimpleDateFormat ;
6 import java.util.Calendar ;
7 import java.util.Date ;
8 import java.util.TimeZone ;
9
10 import org.oddjob.schedules.CalendarUtils;
11 import org.oddjob.schedules.ConstrainedSchedule;
12 import org.oddjob.schedules.DateUtils;
13 import org.oddjob.schedules.ScheduleContext;
14
15
31
32 final public class MonthSchedule extends ConstrainedSchedule implements Serializable {
33
34 private static final long serialVersionUID = 20050226;
35
36 private static final String MONTH_FORMAT = "MMM";
37
38 private String from;
39 private String to;
40
41
45 public void setFrom(String from) {
46 this.from = from;
47 }
48
49
53 public String getFrom() {
54 return from;
55 }
56
57
61 public void setTo(String to) {
62 this.to = to;
63 }
64
65
69 public String getTo() {
70 return to;
71 }
72
73
80 static int parseMonth(String text, TimeZone timeZone) throws ParseException {
81 SimpleDateFormat f = new SimpleDateFormat (MONTH_FORMAT);
82 f.setTimeZone(timeZone);
83 Date d = f.parse(text);
84 return DateUtils.month(d, timeZone);
85 }
86
87 Calendar fromCalendar(Date referenceDate, TimeZone timeZone) {
88 if (from == null) {
89 return CalendarUtils.startOfYear(referenceDate, timeZone);
90 }
91 else {
92 try {
93 return CalendarUtils.monthOfYear(referenceDate,
94 parseMonth(from, timeZone),
95 timeZone);
96 }
97 catch (ParseException e) {
98 throw new RuntimeException ("Failed to parse from day.", e);
99 }
100 }
101 }
102
103 Calendar toCalendar(Date referenceDate, TimeZone timeZone) {
104 if (to == null) {
105 return CalendarUtils.endOfYear(referenceDate, timeZone);
106 }
107 else {
108 try {
109 return CalendarUtils.monthOfYear(referenceDate,
110 parseMonth(to, timeZone),
111 timeZone);
112 }
113 catch (ParseException e) {
114 throw new RuntimeException ("Failed to parse to day.", e);
115 }
116 }
117 }
118
119
123 public Date getStartDate(ScheduleContext context) {
124 Calendar fromCal = fromCalendar(context.getDate(), context.getTimeZone());
125 Calendar toCal = toCalendar(context.getDate(), context.getTimeZone());
126
127 int nowMonth = DateUtils.month(context.getDate(), context.getTimeZone());
128
129 int fromMonth = fromCal.get(Calendar.MONTH);
130 int toMonth = toCal.get(Calendar.MONTH);;
131
132 if (fromMonth > toMonth) {
133 if (nowMonth > toMonth) {
134 return fromCal.getTime();
135 }
136 else {
137 fromCal.add(Calendar.YEAR, -1);
138 return fromCal.getTime();
139 }
140 }
141 else {
142 if (nowMonth > toMonth) {
143 fromCal.add(Calendar.YEAR, 1);
144 return fromCal.getTime();
145 }
146 else {
147 return fromCal.getTime();
148 }
149 }
150 }
151
152
156 public Date getEndDate(ScheduleContext context) {
157 Calendar toCal = toCalendar(context.getDate(), context.getTimeZone());
158
159 int nowMonth = DateUtils.month(context.getDate(), context.getTimeZone());
160
161 int toMonth = toCal.get(Calendar.MONTH);
162
163 if (nowMonth > toMonth) {
164 toCal.add(Calendar.YEAR, 1);
165 }
166 CalendarUtils.setEndOfMonth(toCal);
167 return toCal.getTime();
168
169 }
170 }
171 |
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