Repository: nifi
Updated Branches:
  refs/heads/master 2b435cdfc -> 7bcccb10f


NIFI-3719:
- Removing the usage of SimpleDateFormat when formatting hours/minutes/seconds 
as the current timezone could cause unintended results.

This closes #1871.


Project: http://git-wip-us.apache.org/repos/asf/nifi/repo
Commit: http://git-wip-us.apache.org/repos/asf/nifi/commit/7bcccb10
Tree: http://git-wip-us.apache.org/repos/asf/nifi/tree/7bcccb10
Diff: http://git-wip-us.apache.org/repos/asf/nifi/diff/7bcccb10

Branch: refs/heads/master
Commit: 7bcccb10f4102daf73c99f7cc80b0036af0025b3
Parents: 2b435cd
Author: Matt Gilman <[email protected]>
Authored: Wed May 31 00:45:04 2017 +0930
Committer: Mark Payne <[email protected]>
Committed: Tue May 30 15:01:39 2017 -0400

----------------------------------------------------------------------
 .../java/org/apache/nifi/util/FormatUtils.java  | 26 ++++++++++++------
 .../apache/nifi/processor/TestFormatUtils.java  | 28 +++++++++++++++++---
 2 files changed, 42 insertions(+), 12 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/nifi/blob/7bcccb10/nifi-commons/nifi-utils/src/main/java/org/apache/nifi/util/FormatUtils.java
----------------------------------------------------------------------
diff --git 
a/nifi-commons/nifi-utils/src/main/java/org/apache/nifi/util/FormatUtils.java 
b/nifi-commons/nifi-utils/src/main/java/org/apache/nifi/util/FormatUtils.java
index e129993..1c9140b 100644
--- 
a/nifi-commons/nifi-utils/src/main/java/org/apache/nifi/util/FormatUtils.java
+++ 
b/nifi-commons/nifi-utils/src/main/java/org/apache/nifi/util/FormatUtils.java
@@ -17,9 +17,6 @@
 package org.apache.nifi.util;
 
 import java.text.NumberFormat;
-import java.text.SimpleDateFormat;
-import java.util.Date;
-import java.util.Locale;
 import java.util.concurrent.TimeUnit;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
@@ -66,8 +63,16 @@ public class FormatUtils {
      */
     public static String formatMinutesSeconds(final long sourceDuration, final 
TimeUnit sourceUnit) {
         final long millis = TimeUnit.MILLISECONDS.convert(sourceDuration, 
sourceUnit);
-        final SimpleDateFormat formatter = new SimpleDateFormat("mm:ss.SSS", 
Locale.US);
-        return formatter.format(new Date(millis));
+
+        final long millisInMinute = TimeUnit.MILLISECONDS.convert(1, 
TimeUnit.MINUTES);
+        final int minutes = (int) (millis / millisInMinute);
+        final long secondsMillisLeft = millis - minutes * millisInMinute;
+
+        final long millisInSecond = TimeUnit.MILLISECONDS.convert(1, 
TimeUnit.SECONDS);
+        final int seconds = (int) (secondsMillisLeft / millisInSecond);
+        final long millisLeft = secondsMillisLeft - seconds * millisInSecond;
+
+        return pad2Places(minutes) + ":" + pad2Places(seconds) + "." + 
pad3Places(millisLeft);
     }
 
     /**
@@ -79,17 +84,22 @@ public class FormatUtils {
      */
     public static String formatHoursMinutesSeconds(final long sourceDuration, 
final TimeUnit sourceUnit) {
         final long millis = TimeUnit.MILLISECONDS.convert(sourceDuration, 
sourceUnit);
+
         final long millisInHour = TimeUnit.MILLISECONDS.convert(1, 
TimeUnit.HOURS);
         final int hours = (int) (millis / millisInHour);
-        final long whatsLeft = millis - hours * millisInHour;
+        final long minutesSecondsMillisLeft = millis - hours * millisInHour;
 
-        return pad(hours) + ":" + new SimpleDateFormat("mm:ss.SSS", 
Locale.US).format(new Date(whatsLeft));
+        return pad2Places(hours) + ":" + 
formatMinutesSeconds(minutesSecondsMillisLeft, TimeUnit.MILLISECONDS);
     }
 
-    private static String pad(final int val) {
+    private static String pad2Places(final long val) {
         return (val < 10) ? "0" + val : String.valueOf(val);
     }
 
+    private static String pad3Places(final long val) {
+        return (val < 100) ? "0" + pad2Places(val) : String.valueOf(val);
+    }
+
     /**
      * Formats the specified data size in human readable format.
      *

http://git-wip-us.apache.org/repos/asf/nifi/blob/7bcccb10/nifi-commons/nifi-utils/src/test/java/org/apache/nifi/processor/TestFormatUtils.java
----------------------------------------------------------------------
diff --git 
a/nifi-commons/nifi-utils/src/test/java/org/apache/nifi/processor/TestFormatUtils.java
 
b/nifi-commons/nifi-utils/src/test/java/org/apache/nifi/processor/TestFormatUtils.java
index 359def2..68748e6 100644
--- 
a/nifi-commons/nifi-utils/src/test/java/org/apache/nifi/processor/TestFormatUtils.java
+++ 
b/nifi-commons/nifi-utils/src/test/java/org/apache/nifi/processor/TestFormatUtils.java
@@ -16,13 +16,12 @@
  */
 package org.apache.nifi.processor;
 
-import static org.junit.Assert.assertEquals;
+import org.apache.nifi.util.FormatUtils;
+import org.junit.Test;
 
 import java.util.concurrent.TimeUnit;
 
-import org.apache.nifi.util.FormatUtils;
-
-import org.junit.Test;
+import static org.junit.Assert.assertEquals;
 
 public class TestFormatUtils {
 
@@ -37,4 +36,25 @@ public class TestFormatUtils {
         assertEquals(60, FormatUtils.getTimeDuration("1 Hrs", 
TimeUnit.MINUTES));
     }
 
+    @Test
+    public void testFormatTime() throws Exception {
+        assertEquals("00:00:00.000", FormatUtils.formatHoursMinutesSeconds(0, 
TimeUnit.DAYS));
+        assertEquals("01:00:00.000", FormatUtils.formatHoursMinutesSeconds(1, 
TimeUnit.HOURS));
+        assertEquals("02:00:00.000", FormatUtils.formatHoursMinutesSeconds(2, 
TimeUnit.HOURS));
+        assertEquals("00:01:00.000", FormatUtils.formatHoursMinutesSeconds(1, 
TimeUnit.MINUTES));
+        assertEquals("00:00:10.000", FormatUtils.formatHoursMinutesSeconds(10, 
TimeUnit.SECONDS));
+        assertEquals("00:00:00.777", 
FormatUtils.formatHoursMinutesSeconds(777, TimeUnit.MILLISECONDS));
+        assertEquals("00:00:07.777", 
FormatUtils.formatHoursMinutesSeconds(7777, TimeUnit.MILLISECONDS));
+
+        assertEquals("20:11:36.897", 
FormatUtils.formatHoursMinutesSeconds(TimeUnit.MILLISECONDS.convert(20, 
TimeUnit.HOURS)
+                        + TimeUnit.MILLISECONDS.convert(11, TimeUnit.MINUTES)
+                        + TimeUnit.MILLISECONDS.convert(36, TimeUnit.SECONDS)
+                        + TimeUnit.MILLISECONDS.convert(897, 
TimeUnit.MILLISECONDS), TimeUnit.MILLISECONDS));
+
+        assertEquals("1000:01:01.001", 
FormatUtils.formatHoursMinutesSeconds(TimeUnit.MILLISECONDS.convert(999, 
TimeUnit.HOURS)
+                + TimeUnit.MILLISECONDS.convert(60, TimeUnit.MINUTES)
+                + TimeUnit.MILLISECONDS.convert(60, TimeUnit.SECONDS)
+                + TimeUnit.MILLISECONDS.convert(1001, TimeUnit.MILLISECONDS), 
TimeUnit.MILLISECONDS));
+    }
+
 }

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