[incubator-pulsar] branch master updated: Use `AtomicInteger` in LoggingFunction (#1558)

[mmerli]

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mmerli pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-pulsar.git


The following commit(s) were added to refs/heads/master by this push:
     new 199961e  Use `AtomicInteger` in LoggingFunction (#1558)
199961e is described below

commit 199961ef56e6f8cd1073245480b85e283987a95f
Author: Sijie Guo <guosi...@gmail.com>
AuthorDate: Thu Apr 12 09:59:23 2018 -0700

    Use `AtomicInteger` in LoggingFunction (#1558)
    
    * Add `counter` back in LoggingFunction
    
    * Switch to use AtomicInteger
---
 .../org/apache/pulsar/functions/api/examples/LoggingFunction.java  | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git 
a/pulsar-functions/java-examples/src/main/java/org/apache/pulsar/functions/api/examples/LoggingFunction.java
 
b/pulsar-functions/java-examples/src/main/java/org/apache/pulsar/functions/api/examples/LoggingFunction.java
index 9cf3f55..e8e12ae 100644
--- 
a/pulsar-functions/java-examples/src/main/java/org/apache/pulsar/functions/api/examples/LoggingFunction.java
+++ 
b/pulsar-functions/java-examples/src/main/java/org/apache/pulsar/functions/api/examples/LoggingFunction.java
@@ -18,7 +18,7 @@
  */
 package org.apache.pulsar.functions.api.examples;
 
-import java.util.concurrent.atomic.AtomicIntegerFieldUpdater;
+import java.util.concurrent.atomic.AtomicInteger;
 
 import org.apache.pulsar.functions.api.Context;
 import org.apache.pulsar.functions.api.Function;
@@ -29,14 +29,13 @@ import org.slf4j.Logger;
  */
 public class LoggingFunction implements Function<String, String> {
 
-    private static final AtomicIntegerFieldUpdater<LoggingFunction> 
COUNTER_UPDATER =
-        AtomicIntegerFieldUpdater.newUpdater(LoggingFunction.class, "counter");
+    private final AtomicInteger counter = new AtomicInteger(0);
 
     @Override
     public String process(String input, Context context) {
         Logger LOG = context.getLogger();
 
-        int counterLocal = COUNTER_UPDATER.incrementAndGet(this);
+        int counterLocal = counter.incrementAndGet();
         if ((counterLocal & Integer.MAX_VALUE) % 100000 == 0) {
             LOG.info("Handled {} messages", counterLocal);
         }

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