1
14
15 package com.liferay.portal.kernel.scheduler;
16
17 import com.liferay.portal.kernel.util.StringBundler;
18 import com.liferay.portal.kernel.util.StringPool;
19
20 import java.util.Calendar;
21
22
27 public class TriggerExpression {
28
29 public final static int DAILY_FREQUENCY = 3;
30
31 public final static int MINUTELY_FREQUENCY = 2;
32
33 public final static int MONTHLY_FREQUENCY = 4;
34
35 public final static int NO_FREQUENCY = 1;
36
37 public final static int WEEKLY_FREQUENCY = 5;
38
39 public final static int YEARLY_FREQUENCY = 6;
40
41 public TriggerExpression(Calendar startDate) {
42 this(startDate, TriggerExpression.NO_FREQUENCY, 0);
43 }
44
45 public TriggerExpression(Calendar startDate, int frequency, int interval) {
46 _startDate = startDate;
47 setFrequency(frequency);
48 _interval = interval;
49 }
50
51 public int getFrequency() {
52 return _frequency;
53 }
54
55 public int getInterval() {
56 return _interval;
57 }
58
59 public Calendar getStartDate() {
60 return _startDate;
61 }
62
63 public void setFrequency(int frequency) {
64 if ((frequency != TriggerExpression.DAILY_FREQUENCY) &&
65 (frequency != TriggerExpression.MINUTELY_FREQUENCY) &&
66 (frequency != TriggerExpression.MONTHLY_FREQUENCY) &&
67 (frequency != TriggerExpression.NO_FREQUENCY) &&
68 (frequency != TriggerExpression.WEEKLY_FREQUENCY) &&
69 (frequency != TriggerExpression.YEARLY_FREQUENCY)) {
70
71 throw new IllegalArgumentException(String.valueOf(frequency));
72 }
73
74 _frequency = frequency;
75 }
76
77 public void setInterval(int interval) {
78 _interval = interval;
79 }
80
81 public void setStartDate(Calendar startDate) {
82 _startDate = startDate;
83 }
84
85 public String toCronText() {
86 String second = String.valueOf(_startDate.get(Calendar.SECOND));
87 String minute = String.valueOf(_startDate.get(Calendar.MINUTE));
88 String hour = String.valueOf(_startDate.get(Calendar.HOUR_OF_DAY));
89 String dayOfMonth =
90 String.valueOf(_startDate.get(Calendar.DAY_OF_MONTH));
91 String month = String.valueOf(_startDate.get(Calendar.MONTH) + 1);
92 String dayOfWeek = String.valueOf(_startDate.get(Calendar.DAY_OF_WEEK));
93 String year = String.valueOf(_startDate.get(Calendar.YEAR));
94
95 if (_frequency == TriggerExpression.NO_FREQUENCY) {
96 dayOfWeek = StringPool.QUESTION;
97 }
98 else if (_frequency == TriggerExpression.MINUTELY_FREQUENCY) {
99 minute = StringPool.STAR + StringPool.FORWARD_SLASH + _interval;
100 hour = StringPool.STAR;
101 dayOfMonth = StringPool.STAR;
102 month = StringPool.STAR;
103 dayOfWeek = StringPool.QUESTION;
104 year = StringPool.STAR;
105 }
106 else if (_frequency == TriggerExpression.DAILY_FREQUENCY) {
107 dayOfMonth += StringPool.FORWARD_SLASH + _interval;
108 month = StringPool.STAR;
109 dayOfWeek = StringPool.QUESTION;
110 year = StringPool.STAR;
111 }
112 else if (_frequency == TriggerExpression.WEEKLY_FREQUENCY) {
113 dayOfMonth += StringPool.FORWARD_SLASH + (_interval * 7);
114 month = StringPool.STAR;
115 dayOfWeek = StringPool.QUESTION;
116 year = StringPool.STAR;
117 }
118 else if (_frequency == TriggerExpression.MONTHLY_FREQUENCY) {
119 month += StringPool.FORWARD_SLASH + _interval;
120 dayOfWeek = StringPool.QUESTION;
121 year = StringPool.STAR;
122 }
123 else if (_frequency == TriggerExpression.YEARLY_FREQUENCY) {
124 dayOfWeek = StringPool.QUESTION;
125 year += StringPool.FORWARD_SLASH + _interval;
126 }
127
128 StringBundler sb = new StringBundler(13);
129
130 sb.append(second);
131 sb.append(StringPool.SPACE);
132 sb.append(minute);
133 sb.append(StringPool.SPACE);
134 sb.append(hour);
135 sb.append(StringPool.SPACE);
136 sb.append(dayOfMonth);
137 sb.append(StringPool.SPACE);
138 sb.append(month);
139 sb.append(StringPool.SPACE);
140 sb.append(dayOfWeek);
141 sb.append(StringPool.SPACE);
142 sb.append(year);
143
144 return sb.toString();
145 }
146
147 private Calendar _startDate;
148 private int _frequency;
149 private int _interval;
150
151 }