001    /**
002     * Copyright (c) 2000-2012 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 = 1;
036    
037            public static final int WEEKLY_FREQUENCY = 5;
038    
039            public static final int YEARLY_FREQUENCY = 7;
040    
041            public CronText(Calendar startDate) {
042                    this(startDate, CronText.NO_FREQUENCY, 0);
043            }
044    
045            public CronText(Calendar startDate, int frequency, int interval) {
046                    _startDate = startDate;
047                    setFrequency(frequency);
048                    _interval = interval;
049            }
050    
051            public int getFrequency() {
052                    return _frequency;
053            }
054    
055            public int getInterval() {
056                    return _interval;
057            }
058    
059            public Calendar getStartDate() {
060                    return _startDate;
061            }
062    
063            public void setFrequency(int frequency) {
064                    if ((frequency != CronText.DAILY_FREQUENCY) &&
065                            (frequency != CronText.HOURLY_FREQUENCY) &&
066                            (frequency != CronText.MINUTELY_FREQUENCY) &&
067                            (frequency != CronText.MONTHLY_FREQUENCY) &&
068                            (frequency != CronText.NO_FREQUENCY) &&
069                            (frequency != CronText.WEEKLY_FREQUENCY) &&
070                            (frequency != CronText.YEARLY_FREQUENCY)) {
071    
072                            throw new IllegalArgumentException(String.valueOf(frequency));
073                    }
074    
075                    _frequency = frequency;
076            }
077    
078            public void setInterval(int interval) {
079                    _interval = interval;
080            }
081            public void setStartDate(Calendar startDate) {
082                    _startDate = startDate;
083            }
084            @Override
085            public String toString() {
086                    String second = String.valueOf(_startDate.get(Calendar.SECOND));
087                    String minute = String.valueOf(_startDate.get(Calendar.MINUTE));
088                    String hour = String.valueOf(_startDate.get(Calendar.HOUR_OF_DAY));
089                    String dayOfMonth = String.valueOf(
090                            _startDate.get(Calendar.DAY_OF_MONTH));
091                    String month = String.valueOf(_startDate.get(Calendar.MONTH) + 1);
092                    String dayOfWeek = String.valueOf(_startDate.get(Calendar.DAY_OF_WEEK));
093                    String year = String.valueOf(_startDate.get(Calendar.YEAR));
094    
095                    if (_frequency == CronText.NO_FREQUENCY) {
096                            dayOfWeek = StringPool.QUESTION;
097                    }
098                    else if (_frequency == CronText.MINUTELY_FREQUENCY) {
099                            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 == CronText.HOURLY_FREQUENCY) {
107                            minute = StringPool.STAR;
108                            hour = StringPool.STAR + StringPool.FORWARD_SLASH + _interval;
109                            dayOfMonth = StringPool.STAR;
110                            month = StringPool.STAR;
111                            dayOfWeek = StringPool.QUESTION;
112                            year = StringPool.STAR;
113                    }
114                    else if (_frequency == CronText.DAILY_FREQUENCY) {
115                            dayOfMonth += StringPool.FORWARD_SLASH + _interval;
116                            month = StringPool.STAR;
117                            dayOfWeek = StringPool.QUESTION;
118                            year = StringPool.STAR;
119                    }
120                    else if (_frequency == CronText.WEEKLY_FREQUENCY) {
121                            dayOfMonth += StringPool.FORWARD_SLASH + (_interval * 7);
122                            month = StringPool.STAR;
123                            dayOfWeek = StringPool.QUESTION;
124                            year = StringPool.STAR;
125                    }
126                    else if (_frequency == CronText.MONTHLY_FREQUENCY) {
127                            month += StringPool.FORWARD_SLASH + _interval;
128                            dayOfWeek = StringPool.QUESTION;
129                            year = StringPool.STAR;
130                    }
131                    else if (_frequency == CronText.YEARLY_FREQUENCY) {
132                            dayOfWeek = StringPool.QUESTION;
133                            year += StringPool.FORWARD_SLASH + _interval;
134                    }
135    
136                    StringBundler sb = new StringBundler(13);
137    
138                    sb.append(second);
139                    sb.append(StringPool.SPACE);
140                    sb.append(minute);
141                    sb.append(StringPool.SPACE);
142                    sb.append(hour);
143                    sb.append(StringPool.SPACE);
144                    sb.append(dayOfMonth);
145                    sb.append(StringPool.SPACE);
146                    sb.append(month);
147                    sb.append(StringPool.SPACE);
148                    sb.append(dayOfWeek);
149                    sb.append(StringPool.SPACE);
150                    sb.append(year);
151    
152                    return sb.toString();
153            }
154    
155            private int _frequency;
156            private int _interval;
157            private Calendar _startDate;
158    
159    }