I took a break from the GUI to work on the actual date calculating logic. I started this in a separate IntelliJ Project because I didn’t know how else to test it without re-building it and then reimporting it to Ignition every time.
I shortly realized I would really like to leverage the prebuilt system.date.* functions instead of manually doing date arithmetic (is there anything more disgusting?).
Is there a way to do that where I could run? Right now the code I’m testing looks like
import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.ZoneId;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
public class DateCalculator {
public DateCalculator(){}
private Date calculateEndDate(String interval, Date curDate) {
Date endDate = new Date();
Calendar cal = Calendar.getInstance();
switch(interval){
case "All":
cal.add(Calendar.DATE, 30);
endDate = cal.getTime();
break;
case "Today":
LocalTime midnight = LocalTime.MIDNIGHT;
LocalDate today = LocalDate.now(ZoneId.of("US/Eastern"));
LocalDateTime todayMidnight = LocalDateTime.of(today, midnight);
LocalDateTime yesterdayMidnight = todayMidnight.plusDays(1);
//This is how you convert a localdatetime to Date
endDate = Date.from(yesterdayMidnight.atZone(ZoneId.of("US/Eastern")).toInstant());
break;
case "This Week":
break;
}
return endDate;
}
private Date calculateStartDate(String interval, Date curDate) {
Date startDate = new Date();
switch(interval) {
case "All":
//Start of unix time
startDate = new Date(0L);
break;
case "Today":
LocalTime midnight = LocalTime.MIDNIGHT;
LocalDate today = LocalDate.now(ZoneId.of("US/Eastern"));
LocalDateTime todayMidnight = LocalDateTime.of(today, midnight);
//This is how you convert a localdatetime to Date
startDate = Date.from(todayMidnight.atZone(ZoneId.of("US/Eastern")).toInstant());
break;
case "This Week":
break;
}
return startDate;
}
public ArrayList<Date> calculateEndPoints(String interval, Date curDate){
ArrayList<Date> returnDates = new ArrayList();
Date endDate = calculateEndDate(interval, curDate);
Date startDate = calculateStartDate(interval, curDate);
returnDates.add(startDate);
returnDates.add(endDate);
return returnDates;
}
public void printEndPoints(ArrayList<Date> endpoints, String option) {
System.out.println("Endpoints for " + option + " selection.");
System.out.println("Start date is " + endpoints.get(0));
System.out.println("End date is " + endpoints.get(1));
}
public static void main(String[] args){
DateCalculator dc = new DateCalculator();
Date curDate = new Date();
ArrayList<Date> AllEndPoints = dc.calculateEndPoints("All", curDate);
ArrayList<Date> TodayEndPoints = dc.calculateEndPoints("Today", curDate);
dc.printEndPoints(AllEndPoints, "All");
dc.printEndPoints(TodayEndPoints, "Today");
}
}
I realized quickly its becoming mess of different date time libraries right now and I am not using timzones on everything which I think the system.date does do (correct me if I am wrong) - a large part of why I would like to use them. Also a big advantage would be to use the simpler system.date.add* and system.date.get* functions would help me do the more complicated calculations much more easily. What would be the easiest/ most appropriate way to be able to use those functions in my testing of this DateCalculator? FWIW the original project I made from the vision-component-archetype so I don’t know if that means the scripting functions are there or not so I don’t know if bringing this over to that would work automatically.
