001package org.kuali.ole.batch.helper;
002
003import org.apache.commons.lang.StringUtils;
004import org.kuali.ole.OLEConstants;
005import org.kuali.ole.batch.bo.OLEBatchProcessScheduleBo;
006import org.kuali.ole.batch.document.OLEBatchProcessDefinitionDocument;
007
008import java.util.Date;
009import java.util.regex.Matcher;
010import java.util.regex.Pattern;
011
012/**
013 * Created with IntelliJ IDEA.
014 * User: rajeshbabuk
015 * Date: 7/20/13
016 * Time: 3:32 PM
017 * To change this template use File | Settings | File Templates.
018 */
019public class OLESchedulerHelper {
020
021    private static volatile OLESchedulerHelper helper = new OLESchedulerHelper();
022
023    private OLESchedulerHelper(){
024
025    }
026
027    public static synchronized OLESchedulerHelper getInstance(){
028        return helper;
029    }
030
031    public String getCronExpression(OLEBatchProcessScheduleBo oleBatchProcessScheduleBo){
032        String cronExpression=null;
033        String oneTimeOrRecur = oleBatchProcessScheduleBo.getOneTimeOrRecurring();
034        if(oneTimeOrRecur.equalsIgnoreCase(OLEConstants.OLEBatchProcess.SCHEDULE_ONETIME)){
035            Date oneDate = oleBatchProcessScheduleBo.getOneTimeDate();
036            String oneTime = oleBatchProcessScheduleBo.getOneTimeStartTime();
037            if (oneDate != null) {
038                cronExpression = getCronExpressionForOneTime(oneDate.toString(), oneTime);
039            } else {
040                cronExpression = getCronExpressionForOneTime(oleBatchProcessScheduleBo.getOneTimeStartDate(), oneTime);
041            }
042        }
043
044        if(oneTimeOrRecur.equalsIgnoreCase(OLEConstants.OLEBatchProcess.SCHEDULE_RECURRING)){
045            String schduleType = oleBatchProcessScheduleBo.getScheduleType();
046            if(schduleType.equalsIgnoreCase(OLEConstants.OLEBatchProcess.SCHEDULE_TYPE_DAILY)){
047                String startTimeDaily = oleBatchProcessScheduleBo.getStartTime();
048                cronExpression = getCronExpressionForDaily(startTimeDaily);
049            }
050            if(schduleType.equalsIgnoreCase(OLEConstants.OLEBatchProcess.SCHEDULE_TYPE_WEEKLY)){
051                String startTimeWeekly = oleBatchProcessScheduleBo.getStartTime();
052                String weekDays = oleBatchProcessScheduleBo.getWeekDays();
053                cronExpression = getCronExpressionForWeekly(startTimeWeekly, weekDays);
054            }
055            if(schduleType.equalsIgnoreCase(OLEConstants.OLEBatchProcess.SCHEDULE_TYPE_MONTHLY)){
056                String startTimeMonthly = oleBatchProcessScheduleBo.getStartTime();
057                String dayNumberMonthly = oleBatchProcessScheduleBo.getDayNumber();
058                String monthNumberMonthly = oleBatchProcessScheduleBo.getMonthNumber();
059                cronExpression = getCronExpressionForMonthly(startTimeMonthly, dayNumberMonthly, monthNumberMonthly);
060            }
061        }
062
063        boolean validCronExpression = org.quartz.CronExpression.isValidExpression(cronExpression);
064            if(validCronExpression){
065               return cronExpression;
066            }else{
067                return null;
068            }
069    }
070
071    public String getCronExpressionForOneTime(String startDate, String oneTime) {
072        String[] oneTimeArray = oneTime.split(":");
073        String hour = oneTimeArray[0];
074        String minutes = oneTimeArray[1];
075        String[] dateArray = startDate.split("\\-");
076        String year = dateArray[0];
077        String month = dateArray[1];
078        if (month.charAt(0) == '0') {
079            month = month.substring(1);
080        }
081        String day = dateArray[2];
082        if (day.charAt(0) == '0') {
083            day = day.substring(1);
084        }
085        String cronExp = "0 " + minutes + " " + hour + " " + day + " " + month
086                + " ? " + year;
087        return cronExp;
088    }
089
090    public String getCronExpressionForDaily(String startTime) {
091        String[] startTimeArray = startTime.split(":");
092        String hour = startTimeArray[0];
093        String minutes = startTimeArray[1];
094        String cronExp = "0 " + minutes + " " + hour + " " + "1/1 " + "* " + "? " + "*";
095        return cronExp;
096    }
097
098    public String getCronExpressionForWeekly(String startTime, String weekdays) {
099        String[] startTimeArray = startTime.split(":");
100        String hour = startTimeArray[0];
101        String minutes = startTimeArray[1];
102        String cronExp = "0 " + minutes + " " + hour + " " + "? " + "* " + weekdays + " *";
103        return cronExp;
104    }
105
106    public String getCronExpressionForMonthly(String startTime, String dayNumber, String monthNumber) {
107        String[] startTimeArray = startTime.split(":");
108        String hour = startTimeArray[0];
109        String minutes = startTimeArray[1];
110        String cronExp = "0 " + minutes + " " + hour + " " + dayNumber + " " + "1/" + monthNumber + " " + "?" + " " + "*";
111        return cronExp;
112    }
113
114    /*public String getCronExpressionForDaily24Hr(String startTime) {
115        String[] time = startTime.split(":");
116        String minutes = time[1];
117        String hour = time[0];
118        String cronExp = "0 " + minutes + " " + hour + " " + "* * ?";
119        boolean validCronExpression = org.quartz.CronExpression.isValidExpression(cronExp);
120        if(validCronExpression){
121            return cronExp;
122        }else{
123            return null;
124        }
125    }*/
126
127
128    /*private String[] splitTime(String time){
129        String[] minsAndHour = new String[2];
130        String[] time1 = time.split(":");
131        String[] time2 = new String[2];
132        Matcher spaceMatch = Pattern.compile("\\s").matcher(time1[1]);
133        if(spaceMatch.matches()){
134        time2 = time1[1].split("\\ ");
135        }else{
136            time2[0] = time1[1].substring(0,2);
137            time2[1] = time1[1].substring(2);
138        }
139        String hour;
140        String minutes;
141        if (time2[1].equalsIgnoreCase(OLEConstants.OLEBatchProcess.TIME_PM)) {
142            Integer hourInt = Integer.parseInt(time1[0]) + 12;
143            if (hourInt == 24) {
144                hourInt = 0;
145            }
146            hour = hourInt.toString();
147        } else {
148            hour = time1[0];
149        }
150        minutes = time2[0];
151        minsAndHour[0] = hour;
152        minsAndHour[1] = minutes;
153        return minsAndHour;
154    }*/
155
156}