Code refactor: eliminate unnecessary instance creation of IncrementalBackupFileNameEncoder

1 files changed, 31 insertions, 0 deletions

diff --git a/src/main/java/com/keuin/kbackupfabric/util/DateUtil.java b/src/main/java/com/keuin/kbackupfabric/util/DateUtil.java
new file mode 100644
index 0000000..b101cfd
--- /dev/null
+++ b/src/main/java/com/keuin/kbackupfabric/util/DateUtil.java
@@ -0,0 +1,31 @@
+package com.keuin.kbackupfabric.util;
+
+import java.time.LocalDateTime;
+import java.time.ZoneId;
+import java.time.ZoneOffset;
+import java.time.ZonedDateTime;
+import java.time.format.DateTimeFormatter;
+
+public class DateUtil {
+    private static final DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd_HH-mm-ss");
+
+    public static String getString(LocalDateTime localDateTime) {
+        return localDateTime.format(formatter);
+    }
+
+    public static String getString(ZonedDateTime zonedDateTime) {
+        return zonedDateTime.withZoneSameInstant(ZoneId.systemDefault()).toLocalDateTime().format(formatter);
+    }
+
+    @Deprecated
+    public static long toEpochSecond(String dateTimeString) {
+        ZoneId systemZone = ZoneId.systemDefault(); // my timezone
+        LocalDateTime localDateTime = LocalDateTime.parse(dateTimeString, formatter);
+        ZoneOffset currentOffsetForMyZone = systemZone.getRules().getOffset(localDateTime);
+        return localDateTime.toEpochSecond(currentOffsetForMyZone);
+    }
+
+    public static LocalDateTime toLocalDateTime(String timeString) {
+        return LocalDateTime.parse(timeString, formatter);
+    }
+}