optimization1

fizz-common/src/main/java/we/util/DateTimeUtils.java

@@ -17,7 +17,12 @@
 
 package we.util;
 
-import java.time.*;
+import we.util.Consts.DP;
+
+import java.time.Instant;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.time.ZoneId;
 import java.time.format.DateTimeFormatter;
 import java.time.temporal.ChronoField;
 import java.time.temporal.ChronoUnit;
@@ -26,8 +31,6 @@ import java.util.stream.Collectors;
 import java.util.stream.IntStream;
 import java.util.stream.Stream;
 
-import we.util.Consts.DP;
-
 /**
  * @author hongqiaowei
  */
@@ -165,6 +168,27 @@ public abstract class DateTimeUtils {
 		return localDate1.isEqual(localDate2);
 	}
 
+	public static long get10sTimeWinStart(int n) {
+		LocalDateTime now = LocalDateTime.now().with(ChronoField.MILLI_OF_SECOND, 0);
+		int sec = now.getSecond();
+		long interval;
+		if (sec > 49) {
+			interval = sec - 50;
+		} else if (sec > 39) {
+			interval = sec - 40;
+		} else if (sec > 29) {
+			interval = sec - 30;
+		} else if (sec > 19) {
+			interval = sec - 20;
+		} else if (sec > 9) {
+			interval = sec - 10;
+		} else {
+			interval = sec;
+		}
+		long millis = toMillis(now);
+		return millis - interval * 1000 - (n - 1) * 10L * 1000;
+	}
+
     /*
     void iterateBetweenDatesJava8(LocalDate start, LocalDate end) {
         for (LocalDate date = start; date.isBefore(end); date = date.plusDays(1)) {