singleton java 8 date formatters

1 files changed, 38 insertions, 0 deletions

diff --git a/juick-core/src/main/java/com/juick/util/DateFormatter.java b/juick-core/src/main/java/com/juick/util/DateFormatter.java
new file mode 100644
index 00000000..34585c63
--- /dev/null
+++ b/juick-core/src/main/java/com/juick/util/DateFormatter.java
@@ -0,0 +1,38 @@
+package com.juick.util;
+
+import org.apache.commons.lang3.StringUtils;
+
+import java.time.LocalDateTime;
+import java.time.ZoneOffset;
+import java.time.format.DateTimeFormatter;
+import java.util.Date;
+
+/**
+ * Created by aalexeev on 12/7/16.
+ */
+public class DateFormatter {
+    private final DateTimeFormatter formatter;
+
+    DateFormatter(String pattern) {
+        formatter = DateTimeFormatter.ofPattern(pattern);
+    }
+
+    public String format(final Date date) {
+        if (date == null)
+            return null;
+
+        LocalDateTime ldt = LocalDateTime.ofInstant(date.toInstant(), ZoneOffset.UTC);
+
+        return ldt.format(formatter);
+    }
+
+
+    public Date parse(final String v) {
+        if (StringUtils.isBlank(v))
+            return null;
+
+        LocalDateTime ldt = LocalDateTime.parse(v, formatter);
+
+        return Date.from(ldt.toInstant(ZoneOffset.UTC));
+    }
+}