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Posted to commits@curator.apache.org by dr...@apache.org on 2017/05/02 20:06:17 UTC
[09/50] curator git commit: prevent double reset()
prevent double reset()
Project: http://git-wip-us.apache.org/repos/asf/curator/repo
Commit: http://git-wip-us.apache.org/repos/asf/curator/commit/6c1db4e3
Tree: http://git-wip-us.apache.org/repos/asf/curator/tree/6c1db4e3
Diff: http://git-wip-us.apache.org/repos/asf/curator/diff/6c1db4e3
Branch: refs/heads/master
Commit: 6c1db4e33842bdd0aaf505c4f57f0615759ca421
Parents: 8f59209
Author: randgalt <ra...@apache.org>
Authored: Sun Jan 8 09:54:29 2017 -0500
Committer: randgalt <ra...@apache.org>
Committed: Sun Jan 8 09:54:29 2017 -0500
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.../org/apache/curator/x/async/details/InternalWatcher.java | 5 +++++
1 file changed, 5 insertions(+)
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http://git-wip-us.apache.org/repos/asf/curator/blob/6c1db4e3/curator-x-async/src/main/java/org/apache/curator/x/async/details/InternalWatcher.java
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diff --git a/curator-x-async/src/main/java/org/apache/curator/x/async/details/InternalWatcher.java b/curator-x-async/src/main/java/org/apache/curator/x/async/details/InternalWatcher.java
index 7578083..52b64e5 100644
--- a/curator-x-async/src/main/java/org/apache/curator/x/async/details/InternalWatcher.java
+++ b/curator-x-async/src/main/java/org/apache/curator/x/async/details/InternalWatcher.java
@@ -18,12 +18,14 @@
*/
package org.apache.curator.x.async.details;
+import com.google.common.base.Preconditions;
import org.apache.curator.x.async.AsyncEventException;
import org.apache.curator.x.async.WatchMode;
import org.apache.zookeeper.WatchedEvent;
import org.apache.zookeeper.Watcher;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionStage;
+import java.util.concurrent.atomic.AtomicBoolean;
import java.util.function.UnaryOperator;
class InternalWatcher implements Watcher
@@ -69,6 +71,8 @@ class InternalWatcher implements Watcher
{
AsyncEventException exception = new AsyncEventException()
{
+ private final AtomicBoolean isReset = new AtomicBoolean(false);
+
@Override
public Event.KeeperState getKeeperState()
{
@@ -78,6 +82,7 @@ class InternalWatcher implements Watcher
@Override
public CompletionStage<WatchedEvent> reset()
{
+ Preconditions.checkState(isReset.compareAndSet(false, true), "Already reset");
future = new CompletableFuture<>();
return future;
}