001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.kernel.scheduler;
016    
017    import com.liferay.portal.kernel.util.StringBundler;
018    import com.liferay.portal.kernel.util.StringPool;
019    
020    import java.util.Calendar;
021    
022    /**
023     * @author Thiago Moreira
024     */
025    public class CronText {
026    
027            public static final int DAILY_FREQUENCY = 4;
028    
029            public static final int HOURLY_FREQUENCY = 3;
030    
031            public static final int MINUTELY_FREQUENCY = 2;
032    
033            public static final int MONTHLY_FREQUENCY = 6;
034    
035            public static final int NO_FREQUENCY = 0;
036    
037            public static final int SECONDLY_FREQUENCY = 1;
038    
039            public static final int WEEKLY_FREQUENCY = 5;
040    
041            public static final int YEARLY_FREQUENCY = 7;
042    
043            public CronText(Calendar startDate) {
044                    this(startDate, CronText.NO_FREQUENCY, 0);
045            }
046    
047            public CronText(Calendar startDate, int frequency, int interval) {
048                    _startDate = startDate;
049                    setFrequency(frequency);
050                    _interval = interval;
051            }
052    
053            public int getFrequency() {
054                    return _frequency;
055            }
056    
057            public int getInterval() {
058                    return _interval;
059            }
060    
061            public Calendar getStartDate() {
062                    return _startDate;
063            }
064    
065            public void setFrequency(int frequency) {
066                    if ((frequency != CronText.DAILY_FREQUENCY) &&
067                            (frequency != CronText.HOURLY_FREQUENCY) &&
068                            (frequency != CronText.MINUTELY_FREQUENCY) &&
069                            (frequency != CronText.MONTHLY_FREQUENCY) &&
070                            (frequency != CronText.NO_FREQUENCY) &&
071                            (frequency != CronText.SECONDLY_FREQUENCY) &&
072                            (frequency != CronText.WEEKLY_FREQUENCY) &&
073                            (frequency != CronText.YEARLY_FREQUENCY)) {
074    
075                            throw new IllegalArgumentException(String.valueOf(frequency));
076                    }
077    
078                    _frequency = frequency;
079            }
080    
081            public void setInterval(int interval) {
082                    _interval = interval;
083            }
084    
085            public void setStartDate(Calendar startDate) {
086                    _startDate = startDate;
087            }
088    
089            @Override
090            public String toString() {
091                    String second = String.valueOf(_startDate.get(Calendar.SECOND));
092                    String minute = String.valueOf(_startDate.get(Calendar.MINUTE));
093                    String hour = String.valueOf(_startDate.get(Calendar.HOUR_OF_DAY));
094                    String dayOfMonth = String.valueOf(
095                            _startDate.get(Calendar.DAY_OF_MONTH));
096                    String month = String.valueOf(_startDate.get(Calendar.MONTH) + 1);
097                    String dayOfWeek = String.valueOf(_startDate.get(Calendar.DAY_OF_WEEK));
098                    String year = String.valueOf(_startDate.get(Calendar.YEAR));
099    
100                    if (_frequency == CronText.NO_FREQUENCY) {
101                            dayOfWeek = StringPool.QUESTION;
102                    }
103                    else if (_frequency == CronText.SECONDLY_FREQUENCY) {
104                            second = StringPool.STAR + StringPool.FORWARD_SLASH + _interval;
105                            minute = StringPool.STAR;
106                            hour = StringPool.STAR;
107                            dayOfMonth = StringPool.STAR;
108                            month = StringPool.STAR;
109                            dayOfWeek = StringPool.QUESTION;
110                            year = StringPool.STAR;
111                    }
112                    else if (_frequency == CronText.MINUTELY_FREQUENCY) {
113                            minute = StringPool.STAR + StringPool.FORWARD_SLASH + _interval;
114                            hour = StringPool.STAR;
115                            dayOfMonth = StringPool.STAR;
116                            month = StringPool.STAR;
117                            dayOfWeek = StringPool.QUESTION;
118                            year = StringPool.STAR;
119                    }
120                    else if (_frequency == CronText.HOURLY_FREQUENCY) {
121                            minute = StringPool.STAR;
122                            hour = StringPool.STAR + StringPool.FORWARD_SLASH + _interval;
123                            dayOfMonth = StringPool.STAR;
124                            month = StringPool.STAR;
125                            dayOfWeek = StringPool.QUESTION;
126                            year = StringPool.STAR;
127                    }
128                    else if (_frequency == CronText.DAILY_FREQUENCY) {
129                            dayOfMonth += StringPool.FORWARD_SLASH + _interval;
130                            month = StringPool.STAR;
131                            dayOfWeek = StringPool.QUESTION;
132                            year = StringPool.STAR;
133                    }
134                    else if (_frequency == CronText.WEEKLY_FREQUENCY) {
135                            dayOfMonth += StringPool.FORWARD_SLASH + (_interval * 7);
136                            month = StringPool.STAR;
137                            dayOfWeek = StringPool.QUESTION;
138                            year = StringPool.STAR;
139                    }
140                    else if (_frequency == CronText.MONTHLY_FREQUENCY) {
141                            month += StringPool.FORWARD_SLASH + _interval;
142                            dayOfWeek = StringPool.QUESTION;
143                            year = StringPool.STAR;
144                    }
145                    else if (_frequency == CronText.YEARLY_FREQUENCY) {
146                            dayOfWeek = StringPool.QUESTION;
147                            year += StringPool.FORWARD_SLASH + _interval;
148                    }
149    
150                    StringBundler sb = new StringBundler(13);
151    
152                    sb.append(second);
153                    sb.append(StringPool.SPACE);
154                    sb.append(minute);
155                    sb.append(StringPool.SPACE);
156                    sb.append(hour);
157                    sb.append(StringPool.SPACE);
158                    sb.append(dayOfMonth);
159                    sb.append(StringPool.SPACE);
160                    sb.append(month);
161                    sb.append(StringPool.SPACE);
162                    sb.append(dayOfWeek);
163                    sb.append(StringPool.SPACE);
164                    sb.append(year);
165    
166                    return sb.toString();
167            }
168    
169            private int _frequency;
170            private int _interval;
171            private Calendar _startDate;
172    
173    }