Done ticket GEPAFINBE-3

src/main/java/net/gepafin/tendermanagement/util/DateTimeUtil.java

@@ -0,0 +1,53 @@
+package net.gepafin.tendermanagement.util;
+
+import org.springframework.stereotype.Component;
+
+import java.time.LocalDateTime;
+import java.time.ZoneId;
+import java.time.ZonedDateTime;
+import java.util.Calendar;
+import java.util.Date;
+
+@Component
+public class DateTimeUtil {
+	
+
+	public static LocalDateTime DateServerToUTC(LocalDateTime systemDate) {
+
+		ZonedDateTime ldtZoned = systemDate.atZone(ZoneId.systemDefault());
+		LocalDateTime localDatetime = ldtZoned.withZoneSameInstant(ZoneId.of("UTC")).toLocalDateTime();
+		return localDatetime;
+	}
+
+	public static LocalDateTime getPreviousMonthDate(int month) {
+		Calendar c = Calendar.getInstance();
+		c.add(Calendar.MONTH, -month);
+		LocalDateTime conv = LocalDateTime.ofInstant(c.getTime().toInstant(), ZoneId.systemDefault());
+		return conv;
+	}
+	
+	public static Date getDateWithoutTime(LocalDateTime systemDate) {
+		ZonedDateTime zdt = systemDate.atZone(ZoneId.systemDefault());
+		Date date = Date.from(zdt.toInstant());
+		Calendar calendar = Calendar.getInstance();
+		calendar.setTime(date);
+		calendar.set(Calendar.HOUR_OF_DAY, 0);
+		calendar.set(Calendar.MINUTE, 0);
+		calendar.set(Calendar.SECOND, 0);
+		calendar.set(Calendar.MILLISECOND, 0);
+		return calendar.getTime();
+	}
+	
+	public static LocalDateTime convertDateToLocalDateTime(Date date) {
+		LocalDateTime ldt = LocalDateTime.ofInstant(date.toInstant(),
+                ZoneId.systemDefault());
+		return ldt;
+	}
+
+	
+    public static Date convertLocalDateTimeToDateUsingInstant(LocalDateTime localDateTime) {
+        return Date
+          .from(localDateTime.atZone(ZoneId.systemDefault())
+          .toInstant());
+    }
+}