You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@curator.apache.org by ra...@apache.org on 2017/07/16 21:06:20 UTC
[03/21] curator git commit: Merge branch 'CURATOR-311' of
github.com:oza/curator into CURATOR-311
Merge branch 'CURATOR-311' of github.com:oza/curator into CURATOR-311
Project: http://git-wip-us.apache.org/repos/asf/curator/repo
Commit: http://git-wip-us.apache.org/repos/asf/curator/commit/174faef5
Tree: http://git-wip-us.apache.org/repos/asf/curator/tree/174faef5
Diff: http://git-wip-us.apache.org/repos/asf/curator/diff/174faef5
Branch: refs/heads/CURATOR-419
Commit: 174faef5f0de10626c616d2a25eb9fb1e5572966
Parents: 0f5d10d 8c1c5ff
Author: randgalt <ra...@apache.org>
Authored: Mon Jul 10 10:55:00 2017 -0500
Committer: randgalt <ra...@apache.org>
Committed: Mon Jul 10 10:55:00 2017 -0500
----------------------------------------------------------------------
.../framework/recipes/shared/SharedCount.java | 5 +
.../framework/recipes/shared/SharedValue.java | 27 ++++-
.../recipes/shared/TestSharedCount.java | 116 ++++++++++++++++++-
3 files changed, 146 insertions(+), 2 deletions(-)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/curator/blob/174faef5/curator-recipes/src/main/java/org/apache/curator/framework/recipes/shared/SharedValue.java
----------------------------------------------------------------------
diff --cc curator-recipes/src/main/java/org/apache/curator/framework/recipes/shared/SharedValue.java
index 1a3d889,7e3f26a..68fd5b5
--- a/curator-recipes/src/main/java/org/apache/curator/framework/recipes/shared/SharedValue.java
+++ b/curator-recipes/src/main/java/org/apache/curator/framework/recipes/shared/SharedValue.java
@@@ -94,9 -106,21 +107,21 @@@ public class SharedValue implements Clo
*/
public SharedValue(CuratorFramework client, String path, byte[] seedValue)
{
- this.client = client;
+ this.client = client.newWatcherRemoveCuratorFramework();
this.path = PathUtils.validatePath(path);
this.seedValue = Arrays.copyOf(seedValue, seedValue.length);
+ this.watcher = new SharedValueCuratorWatcher();
+ currentValue = new AtomicReference<VersionedValue<byte[]>>(new VersionedValue<byte[]>(UNINITIALIZED_VERSION, Arrays.copyOf(seedValue, seedValue.length)));
+ }
+
+ @VisibleForTesting
+ protected SharedValue(CuratorFramework client, String path, byte[] seedValue, CuratorWatcher watcher)
+ {
+ this.client = client;
+ this.path = PathUtils.validatePath(path);
+ this.seedValue = Arrays.copyOf(seedValue, seedValue.length);
+ // inject watcher for testing
+ this.watcher = watcher;
currentValue = new AtomicReference<VersionedValue<byte[]>>(new VersionedValue<byte[]>(UNINITIALIZED_VERSION, Arrays.copyOf(seedValue, seedValue.length)));
}
http://git-wip-us.apache.org/repos/asf/curator/blob/174faef5/curator-recipes/src/test/java/org/apache/curator/framework/recipes/shared/TestSharedCount.java
----------------------------------------------------------------------
diff --cc curator-recipes/src/test/java/org/apache/curator/framework/recipes/shared/TestSharedCount.java
index 0690d6a,330c8f4..d7ebb6c
--- a/curator-recipes/src/test/java/org/apache/curator/framework/recipes/shared/TestSharedCount.java
+++ b/curator-recipes/src/test/java/org/apache/curator/framework/recipes/shared/TestSharedCount.java
@@@ -23,9 -23,9 +23,10 @@@ import com.google.common.collect.Lists
import com.google.common.util.concurrent.ThreadFactoryBuilder;
import org.apache.curator.framework.CuratorFramework;
import org.apache.curator.framework.CuratorFrameworkFactory;
+import org.apache.curator.framework.imps.TestCleanState;
import org.apache.curator.framework.api.BackgroundCallback;
import org.apache.curator.framework.api.CuratorEvent;
+ import org.apache.curator.framework.api.CuratorWatcher;
import org.apache.curator.framework.state.ConnectionState;
import org.apache.curator.framework.state.ConnectionStateListener;
import org.apache.curator.retry.RetryNTimes;
@@@ -424,7 -392,115 +430,115 @@@ public class TestSharedCount extends Ba
finally
{
CloseableUtils.closeQuietly(sharedCount);
- CloseableUtils.closeQuietly(curatorFramework);
+ TestCleanState.closeAndTestClean(curatorFramework);
}
}
+
+
+ @Test
+ public void testDisconnectReconnectWithMultipleClients() throws Exception
+ {
+ CuratorFramework curatorFramework1 = CuratorFrameworkFactory.newClient(server.getConnectString(), new RetryNTimes(10, 500));
+ CuratorFramework curatorFramework2 = CuratorFrameworkFactory.newClient(server.getConnectString(), new RetryNTimes(10, 500));
+
+ curatorFramework1.start();
+ curatorFramework1.blockUntilConnected();
+ curatorFramework2.start();
+ curatorFramework2.blockUntilConnected();
+
+ final String sharedCountPath = "/count";
+ final int initialCount = 10;
+ SharedCount sharedCount1 = new SharedCount(curatorFramework1, sharedCountPath, initialCount);
+ SharedCount sharedCountWithFaultyWatcher = createSharedCountWithFaultyWatcher(curatorFramework2, sharedCountPath, initialCount);
+
+ class MySharedCountListener implements SharedCountListener
+ {
+ final public Phaser gotSuspendEvent = new Phaser(1);
+ final public Phaser gotChangeEvent = new Phaser(1);
+ final public Phaser getReconnectEvent = new Phaser(1);
+ final public AtomicInteger numChangeEvents = new AtomicInteger(0);
+
+ @Override
+ public void countHasChanged(SharedCountReader sharedCount, int newCount) throws Exception
+ {
+ numChangeEvents.incrementAndGet();
+ gotChangeEvent.arrive();
+ }
+
+ @Override
+ public void stateChanged(CuratorFramework client, ConnectionState newState)
+ {
+ if (newState == ConnectionState.SUSPENDED) {
+ gotSuspendEvent.arrive();
+ } else if (newState == ConnectionState.RECONNECTED) {
+ getReconnectEvent.arrive();
+ }
+ }
+ }
+
+ MySharedCountListener listener1 = new MySharedCountListener();
+ sharedCount1.addListener(listener1);
+ sharedCount1.start();
+ MySharedCountListener listener2 = new MySharedCountListener();
+ sharedCountWithFaultyWatcher.addListener(listener2);
+
+ try
+ {
+ sharedCount1.setCount(12);
+ Assert.assertEquals(listener1.gotChangeEvent.awaitAdvanceInterruptibly(0, 2, TimeUnit.SECONDS), 1);
+ Assert.assertEquals(sharedCount1.getCount(), 12);
+
+ Assert.assertEquals(sharedCountWithFaultyWatcher.getCount(), 10);
+ // new counter with faultyWatcher start
+ sharedCountWithFaultyWatcher.start();
+
+ for (int i = 0; i < 10; i++) {
+ sharedCount1.setCount(13 + i);
+ Assert.assertEquals(sharedCount1.getCount(), 13 + i);
+
+ server.restart();
+
+ Assert.assertEquals(listener2.getReconnectEvent.awaitAdvanceInterruptibly(i, 2, TimeUnit.SECONDS), i + 1);
+ // CURATOR-311 introduces to Curator's client reading server's shared count value
+ // when client's state gets ConnectionState.RECONNECTED. Following tests ensures that.
+ Assert.assertEquals(listener2.gotChangeEvent.awaitAdvanceInterruptibly(i, 2, TimeUnit.SECONDS), i + 1);
+ Assert.assertEquals(sharedCountWithFaultyWatcher.getCount(), 13 + i);
+ }
+ }
+ finally
+ {
+ CloseableUtils.closeQuietly(sharedCount1);
+ CloseableUtils.closeQuietly(curatorFramework1);
+ CloseableUtils.closeQuietly(sharedCountWithFaultyWatcher);
+ CloseableUtils.closeQuietly(curatorFramework2);
+ }
+ }
+
+ private SharedCount createSharedCountWithFaultyWatcher(CuratorFramework curatorFramework, String path, int val) {
+
+ class FaultyCuratorWatcher implements CuratorWatcher {
+ @Override
+ public void process(WatchedEvent event) throws Exception {
+ // everything will be ignored
+ }
+ }
+
+ final FaultyCuratorWatcher fautlyWatcher = new FaultyCuratorWatcher();
+
+ class FaultySharedValue extends SharedValue {
+ public FaultySharedValue(CuratorFramework client, String path, byte[] seedValue) {
+ super(client, path, seedValue, fautlyWatcher);
+ }
+ };
+
+ final SharedValue faultySharedValue = new FaultySharedValue(curatorFramework, path, SharedCount.toBytes(val));
+ class FaultySharedCount extends SharedCount {
+ public FaultySharedCount(CuratorFramework client, String path, int val) {
+ super(client, path, faultySharedValue);
+ }
+ };
+ return new FaultySharedCount(curatorFramework, path, val);
+ }
+
+
}