Add JWT DateUtil functions

GeneXusJWT/src/main/java/com/genexus/JWT/utils/DateUtil.java

@@ -1,32 +1,93 @@
 package com.genexus.JWT.utils;
 
 import java.time.LocalDateTime;
+import java.time.LocalTime;
 import java.time.format.DateTimeFormatter;
+import java.time.format.DateTimeParseException;
+import java.time.temporal.ChronoField;
+import java.util.Calendar;
 
 import com.genexus.commons.DateUtilObject;
 
-public final class DateUtil extends DateUtilObject{
+public final class DateUtil extends DateUtilObject {
 
 	/******** EXTERNAL OBJECT PUBLIC METHODS - BEGIN ********/
 	public String getCurrentDate() {
 		DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy/MM/dd HH:mm:ss");
 		LocalDateTime now = LocalDateTime.now();
 		return dtf.format(now);
 	}
-	
+
 	public String currentPlusSeconds(long seconds) {
 		DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy/MM/dd HH:mm:ss");
 		LocalDateTime now = LocalDateTime.now();
 		LocalDateTime aux = now.plusSeconds(seconds);
 		return dtf.format(aux);
 	}
-	
+
 	public String currentMinusSeconds(long seconds) {
 		DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy/MM/dd HH:mm:ss");
 		LocalDateTime now = LocalDateTime.now();
 		LocalDateTime aux = now.minusSeconds(seconds);
 		return dtf.format(aux);
 	}
+
+	public String currentPlusMinutes(long minutes) {
+		DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy/MM/dd HH:mm:ss");
+		LocalDateTime now = LocalDateTime.now();
+		LocalDateTime aux = now.plusMinutes(minutes);
+		return dtf.format(aux);
+	}
+
+	public String currentPlusHours(long hours) {
+		DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy/MM/dd HH:mm:ss");
+		LocalDateTime now = LocalDateTime.now();
+		LocalDateTime aux = now.plusHours(hours);
+		return dtf.format(aux);
+	}
+
+	public String currentPlusDays(long days) {
+		DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy/MM/dd HH:mm:ss");
+		LocalDateTime now = LocalDateTime.now();
+		LocalDateTime aux = now.plusDays(days);
+		return dtf.format(aux);
+	}
+
+	public String currentPlusMonths(int months) {
+		DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy/MM/dd HH:mm:ss");
+		LocalDateTime now = LocalDateTime.now();
+		LocalDateTime aux = now.plusMonths(months);
+		return dtf.format(aux);
+	}
+
+	public String lastDayOfCurrentMonth(String time) {
+		LocalTime localTime;
+		try {
+			localTime = LocalTime.parse(time, DateTimeFormatter.ofPattern("HH:mm:ss"));
+		} catch (DateTimeParseException e) {
+			this.error.setError("DU001", "Wrong format in input parameter");
+			return "";
+		}
+
+		int hour = localTime.get(ChronoField.CLOCK_HOUR_OF_DAY);
+		int minute = localTime.get(ChronoField.MINUTE_OF_HOUR);
+		int second = localTime.get(ChronoField.SECOND_OF_MINUTE);
+		Calendar calendar = Calendar.getInstance();
+		int day = calendar.getActualMaximum(Calendar.DATE);
+		LocalDateTime now = LocalDateTime.now();
+		int year = now.getYear();
+		int month = now.getMonthValue();
+		String result;
+		try {
+			result = String.format("%d/%02d/%02d %02d:%02d:%02d", year, month, day, hour, minute, second);
+		} catch (java.util.IllegalFormatException e) {
+			this.error.setError("DU002", "Could not generate correct date");
+			return "";
+		}
+		return result;
+
+	}
+
 	/******** EXTERNAL OBJECT PUBLIC METHODS - END ********/
 
 }