org.apache.curator.framework.api.CuratorEventType Java Examples
The following examples show how to use
org.apache.curator.framework.api.CuratorEventType.
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Example #1
| Source File: BackgroundSyncImpl.java From xian with Apache License 2.0 | 6 votes |
|
@Override
public void performBackgroundOperation(final OperationAndData<String> operationAndData) throws Exception
{
final OperationTrace trace = client.getZookeeperClient().startAdvancedTracer("BackgroundSyncImpl");
final String data = operationAndData.getData();
client.getZooKeeper().sync
(
data,
new AsyncCallback.VoidCallback()
{
@Override
public void processResult(int rc, String path, Object ctx)
{
trace.setReturnCode(rc).setRequestBytesLength(data).commit();
CuratorEventImpl event = new CuratorEventImpl(client, CuratorEventType.SYNC, rc, path, null, ctx, null, null, null, null, null);
client.processBackgroundOperation(operationAndData, event);
}
},
context
);
}
Example #2
| Source File: GetACLBuilderImpl.java From curator with Apache License 2.0 | 6 votes |
|
@Override
public void performBackgroundOperation(final OperationAndData<String> operationAndData) throws Exception
{
try
{
final OperationTrace trace = client.getZookeeperClient().startAdvancedTracer("GetACLBuilderImpl-Background");
AsyncCallback.ACLCallback callback = new AsyncCallback.ACLCallback()
{
@Override
public void processResult(int rc, String path, Object ctx, List<ACL> acl, Stat stat)
{
trace.setReturnCode(rc).setPath(path).setStat(stat).commit();
CuratorEventImpl event = new CuratorEventImpl(client, CuratorEventType.GET_ACL, rc, path, null, ctx, stat, null, null, null, acl, null);
client.processBackgroundOperation(operationAndData, event);
}
};
client.getZooKeeper().getACL(operationAndData.getData(), responseStat, callback, backgrounding.getContext());
}
catch ( Throwable e )
{
backgrounding.checkError(e, null);
}
}
Example #3
| Source File: GetACLBuilderImpl.java From xian with Apache License 2.0 | 6 votes |
|
@Override
public void performBackgroundOperation(final OperationAndData<String> operationAndData) throws Exception
{
try
{
final OperationTrace trace = client.getZookeeperClient().startAdvancedTracer("GetACLBuilderImpl-Background");
AsyncCallback.ACLCallback callback = new AsyncCallback.ACLCallback()
{
@Override
public void processResult(int rc, String path, Object ctx, List<ACL> acl, Stat stat)
{
trace.setReturnCode(rc).setPath(path).setStat(stat).commit();
CuratorEventImpl event = new CuratorEventImpl(client, CuratorEventType.GET_ACL, rc, path, null, ctx, stat, null, null, null, acl);
client.processBackgroundOperation(operationAndData, event);
}
};
client.getZooKeeper().getACL(operationAndData.getData(), responseStat, callback, backgrounding.getContext());
}
catch ( Throwable e )
{
backgrounding.checkError(e);
}
}
Example #4
| Source File: CuratorMultiTransactionImpl.java From curator with Apache License 2.0 | 6 votes |
|
@Override
public void performBackgroundOperation(final OperationAndData<CuratorMultiTransactionRecord> operationAndData) throws Exception
{
try
{
final TimeTrace trace = client.getZookeeperClient().startTracer("CuratorMultiTransactionImpl-Background");
AsyncCallback.MultiCallback callback = new AsyncCallback.MultiCallback()
{
@Override
public void processResult(int rc, String path, Object ctx, List<OpResult> opResults)
{
trace.commit();
List<CuratorTransactionResult> curatorResults = (opResults != null) ? CuratorTransactionImpl.wrapResults(client, opResults, operationAndData.getData()) : null;
CuratorEvent event = new CuratorEventImpl(client, CuratorEventType.TRANSACTION, rc, path, null, ctx, null, null, null, null, null, curatorResults);
client.processBackgroundOperation(operationAndData, event);
}
};
client.getZooKeeper().multi(operationAndData.getData(), callback, backgrounding.getContext());
}
catch ( Throwable e )
{
backgrounding.checkError(e, null);
}
}
Example #5
| Source File: BackgroundSyncImpl.java From curator with Apache License 2.0 | 6 votes |
|
@Override
public void performBackgroundOperation(final OperationAndData<String> operationAndData) throws Exception
{
final OperationTrace trace = client.getZookeeperClient().startAdvancedTracer("BackgroundSyncImpl");
final String data = operationAndData.getData();
client.getZooKeeper().sync
(
data,
new AsyncCallback.VoidCallback()
{
@Override
public void processResult(int rc, String path, Object ctx)
{
trace.setReturnCode(rc).setRequestBytesLength(data).commit();
CuratorEventImpl event = new CuratorEventImpl(client, CuratorEventType.SYNC, rc, path, null, ctx, null, null, null, null, null, null);
client.processBackgroundOperation(operationAndData, event);
}
},
context
);
}
Example #6
| Source File: Zookeeper.java From jstorm with Apache License 2.0 | 5 votes |
|
/**
* connect ZK, register watchers
*/
public CuratorFramework mkClient(Map conf, List<String> servers, Object port,
String root, final WatcherCallBack watcher) {
CuratorFramework fk = Utils.newCurator(conf, servers, port, root);
fk.getCuratorListenable().addListener(new CuratorListener() {
@Override
public void eventReceived(CuratorFramework _fk, CuratorEvent e) throws Exception {
if (e.getType().equals(CuratorEventType.WATCHED)) {
WatchedEvent event = e.getWatchedEvent();
watcher.execute(event.getState(), event.getType(), event.getPath());
}
}
});
fk.getUnhandledErrorListenable().addListener(new UnhandledErrorListener() {
@Override
public void unhandledError(String msg, Throwable error) {
String errmsg = "Unrecoverable zookeeper error, halting process: " + msg;
LOG.error(errmsg, error);
JStormUtils.halt_process(1, "Unrecoverable zookeeper error");
}
});
fk.start();
return fk;
}
Example #7
| Source File: DistributedQueue.java From curator with Apache License 2.0 | 5 votes |
|
private void doPutInBackground(final T item, String path, final MultiItem<T> givenMultiItem, byte[] bytes) throws Exception
{
BackgroundCallback callback = new BackgroundCallback()
{
@Override
public void processResult(CuratorFramework client, CuratorEvent event) throws Exception
{
if ( event.getResultCode() != KeeperException.Code.OK.intValue() )
{
return;
}
if ( event.getType() == CuratorEventType.CREATE )
{
synchronized(putCount)
{
putCount.decrementAndGet();
putCount.notifyAll();
}
}
putListenerContainer.forEach(listener -> {
if ( item != null )
{
listener.putCompleted(item);
}
else
{
listener.putMultiCompleted(givenMultiItem);
}
});
}
};
internalCreateNode(path, bytes, callback);
}
Example #8
| Source File: TestFramework.java From curator with Apache License 2.0 | 5 votes |
|
@Test
public void testBackgroundDeleteWithChildren() throws Exception
{
CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(), new RetryOneTime(1));
client.start();
try
{
client.getCuratorListenable().addListener
((client1, event) ->
{
if ( event.getType() == CuratorEventType.DELETE )
{
Assert.assertEquals(event.getPath(), "/one/two");
((CountDownLatch)event.getContext()).countDown();
}
});
CountDownLatch latch = new CountDownLatch(1);
AsyncCuratorFramework async = AsyncCuratorFramework.wrap(client);
async.create().withOptions(EnumSet.of(CreateOption.createParentsIfNeeded)).forPath("/one/two/three/four").thenRun(() ->
async.delete().withOptions(EnumSet.of(DeleteOption.deletingChildrenIfNeeded)).forPath("/one/two").handle((v, e) -> {
Assert.assertNull(v);
Assert.assertNull(e);
latch.countDown();
return null;
})
);
Assert.assertTrue(latch.await(10, TimeUnit.SECONDS));
Assert.assertNull(client.checkExists().forPath("/one/two"));
}
finally
{
CloseableUtils.closeQuietly(client);
}
}
Example #9
| Source File: GetChildrenBuilderImpl.java From curator with Apache License 2.0 | 5 votes |
|
@Override
public void performBackgroundOperation(final OperationAndData<String> operationAndData) throws Exception
{
try
{
final OperationTrace trace = client.getZookeeperClient().startAdvancedTracer("GetChildrenBuilderImpl-Background");
AsyncCallback.Children2Callback callback = new AsyncCallback.Children2Callback()
{
@Override
public void processResult(int rc, String path, Object o, List<String> strings, Stat stat)
{
watching.commitWatcher(rc, false);
trace.setReturnCode(rc).setPath(path).setWithWatcher(watching.hasWatcher()).setStat(stat).commit();
if ( strings == null )
{
strings = Lists.newArrayList();
}
CuratorEventImpl event = new CuratorEventImpl(client, CuratorEventType.CHILDREN, rc, path, null, o, stat, null, strings, null, null, null);
client.processBackgroundOperation(operationAndData, event);
}
};
if ( watching.isWatched() )
{
client.getZooKeeper().getChildren(operationAndData.getData(), true, callback, backgrounding.getContext());
}
else
{
client.getZooKeeper().getChildren(operationAndData.getData(), watching.getWatcher(operationAndData.getData()), callback, backgrounding.getContext());
}
}
catch ( Throwable e )
{
backgrounding.checkError(e, watching);
}
}
Example #10
| Source File: CuratorEventImpl.java From curator with Apache License 2.0 | 5 votes |
|
CuratorEventImpl(CuratorFrameworkImpl client, CuratorEventType type, int resultCode, String path, String name, Object context, Stat stat, byte[] data, List<String> children, WatchedEvent watchedEvent, List<ACL> aclList, List<CuratorTransactionResult> opResults)
{
this.type = type;
this.resultCode = resultCode;
this.opResults = (opResults != null) ? ImmutableList.copyOf(opResults) : null;
this.path = client.unfixForNamespace(path);
this.name = name;
this.context = context;
this.stat = stat;
this.data = data;
this.children = children;
this.watchedEvent = (watchedEvent != null) ? new NamespaceWatchedEvent(client, watchedEvent) : null;
this.aclList = (aclList != null) ? ImmutableList.copyOf(aclList) : null;
}
Example #11
| Source File: GetChildrenBuilderImpl.java From xian with Apache License 2.0 | 5 votes |
|
@Override
public void performBackgroundOperation(final OperationAndData<String> operationAndData) throws Exception
{
try
{
final OperationTrace trace = client.getZookeeperClient().startAdvancedTracer("GetChildrenBuilderImpl-Background");
AsyncCallback.Children2Callback callback = new AsyncCallback.Children2Callback()
{
@Override
public void processResult(int rc, String path, Object o, List<String> strings, Stat stat)
{
trace.setReturnCode(rc).setPath(path).setWithWatcher(watching.getWatcher() != null).setStat(stat).commit();
if ( strings == null )
{
strings = Lists.newArrayList();
}
CuratorEventImpl event = new CuratorEventImpl(client, CuratorEventType.CHILDREN, rc, path, null, o, stat, null, strings, null, null);
client.processBackgroundOperation(operationAndData, event);
}
};
if ( watching.isWatched() )
{
client.getZooKeeper().getChildren(operationAndData.getData(), true, callback, backgrounding.getContext());
}
else
{
client.getZooKeeper().getChildren(operationAndData.getData(), watching.getWatcher(), callback, backgrounding.getContext());
}
}
catch ( Throwable e )
{
backgrounding.checkError(e);
}
}
Example #12
| Source File: CuratorEventImpl.java From xian with Apache License 2.0 | 5 votes |
|
CuratorEventImpl(CuratorFrameworkImpl client, CuratorEventType type, int resultCode, String path, String name, Object context, Stat stat, byte[] data, List<String> children, WatchedEvent watchedEvent, List<ACL> aclList)
{
this.type = type;
this.resultCode = resultCode;
this.path = client.unfixForNamespace(path);
this.name = name;
this.context = context;
this.stat = stat;
this.data = data;
this.children = children;
this.watchedEvent = (watchedEvent != null) ? new NamespaceWatchedEvent(client, watchedEvent) : watchedEvent;
this.aclList = (aclList != null) ? ImmutableList.copyOf(aclList) : null;
}
Example #13
| Source File: CuratorEventImpl.java From curator with Apache License 2.0 | 4 votes |
|
@Override
public CuratorEventType getType()
{
return type;
}
Example #14
| Source File: FindAndDeleteProtectedNodeInBackground.java From curator with Apache License 2.0 | 4 votes |
|
@Override
public void performBackgroundOperation(final OperationAndData<Void> operationAndData) throws Exception
{
final OperationTrace trace = client.getZookeeperClient().startAdvancedTracer("FindAndDeleteProtectedNodeInBackground");
AsyncCallback.Children2Callback callback = new AsyncCallback.Children2Callback()
{
@Override
public void processResult(int rc, String path, Object o, List<String> strings, Stat stat)
{
trace.setReturnCode(rc).setPath(path).setStat(stat).commit();
if ( debugInsertError.compareAndSet(true, false) )
{
rc = KeeperException.Code.CONNECTIONLOSS.intValue();
}
if ( rc == KeeperException.Code.OK.intValue() )
{
final String node = CreateBuilderImpl.findNode(strings, "/", protectedId); // due to namespacing, don't let CreateBuilderImpl.findNode adjust the path
if ( node != null )
{
try
{
String deletePath = client.unfixForNamespace(ZKPaths.makePath(namespaceAdjustedParentPath, node));
client.delete().guaranteed().inBackground().forPath(deletePath);
}
catch ( Exception e )
{
ThreadUtils.checkInterrupted(e);
log.error("Could not start guaranteed delete for node: " + node);
rc = KeeperException.Code.CONNECTIONLOSS.intValue();
}
}
}
if ( rc != KeeperException.Code.OK.intValue() )
{
CuratorEventImpl event = new CuratorEventImpl(client, CuratorEventType.CHILDREN, rc, path, null, o, stat, null, strings, null, null, null);
client.processBackgroundOperation(operationAndData, event);
}
}
};
client.getZooKeeper().getChildren(namespaceAdjustedParentPath, false, callback, null);
}
Example #15
| Source File: TestFrameworkEdges.java From curator with Apache License 2.0 | 4 votes |
|
@Test
public void testProtectionWithKilledSession() throws Exception
{
server.stop(); // not needed
// see CURATOR-498
// attempt to re-create the state described in the bug report: create a 3 Instance ensemble;
// have Curator connect to only 1 one of those instances; set failNextCreateForTesting to
// simulate protection mode searching; kill the connected server when this happens;
// wait for session timeout to elapse and then restart the instance. In most cases
// this will cause the scenario as Curator will send the session cancel and do protection mode
// search around the same time. The protection mode search should return first as it can be resolved
// by the Instance Curator is connected to but the session kill needs a quorum vote (it's a
// transaction)
try (TestingCluster cluster = createAndStartCluster(3))
{
InstanceSpec instanceSpec0 = cluster.getServers().get(0).getInstanceSpec();
CountDownLatch serverStoppedLatch = new CountDownLatch(1);
RetryPolicy retryPolicy = new RetryForever(100)
{
@Override
public boolean allowRetry(int retryCount, long elapsedTimeMs, RetrySleeper sleeper)
{
if ( serverStoppedLatch.getCount() > 0 )
{
try
{
cluster.killServer(instanceSpec0);
}
catch ( Exception e )
{
// ignore
}
serverStoppedLatch.countDown();
}
return super.allowRetry(retryCount, elapsedTimeMs, sleeper);
}
};
try (CuratorFramework client = CuratorFrameworkFactory.newClient(instanceSpec0.getConnectString(), timing.session(), timing.connection(), retryPolicy))
{
BlockingQueue<String> createdNode = new LinkedBlockingQueue<>();
BackgroundCallback callback = (__, event) -> {
if ( event.getType() == CuratorEventType.CREATE )
{
createdNode.offer(event.getPath());
}
};
client.start();
client.create().forPath("/test");
ErrorListenerPathAndBytesable<String> builder = client.create().withProtection().withMode(CreateMode.EPHEMERAL).inBackground(callback);
((CreateBuilderImpl)builder).failNextCreateForTesting = true;
builder.forPath("/test/hey");
Assert.assertTrue(timing.awaitLatch(serverStoppedLatch));
timing.forSessionSleep().sleep(); // wait for session to expire
cluster.restartServer(instanceSpec0);
String path = timing.takeFromQueue(createdNode);
List<String> children = client.getChildren().forPath("/test");
Assert.assertEquals(Collections.singletonList(ZKPaths.getNodeFromPath(path)), children);
}
}
}
Example #16
| Source File: CuratorEventImpl.java From xian with Apache License 2.0 | 4 votes |
|
@Override
public CuratorEventType getType()
{
return type;
}
Example #17
| Source File: FindAndDeleteProtectedNodeInBackground.java From xian with Apache License 2.0 | 4 votes |
|
@Override
public void performBackgroundOperation(final OperationAndData<Void> operationAndData) throws Exception
{
final OperationTrace trace = client.getZookeeperClient().startAdvancedTracer("FindAndDeleteProtectedNodeInBackground");
AsyncCallback.Children2Callback callback = new AsyncCallback.Children2Callback()
{
@Override
public void processResult(int rc, String path, Object o, List<String> strings, Stat stat)
{
trace.setReturnCode(rc).setPath(path).setStat(stat).commit();
if ( debugInsertError.compareAndSet(true, false) )
{
rc = KeeperException.Code.CONNECTIONLOSS.intValue();
}
if ( rc == KeeperException.Code.OK.intValue() )
{
final String node = CreateBuilderImpl.findNode(strings, "/", protectedId); // due to namespacing, don't let CreateBuilderImpl.findNode adjust the path
if ( node != null )
{
try
{
String deletePath = client.unfixForNamespace(ZKPaths.makePath(namespaceAdjustedParentPath, node));
client.delete().guaranteed().inBackground().forPath(deletePath);
}
catch ( Exception e )
{
ThreadUtils.checkInterrupted(e);
log.error("Could not start guaranteed delete for node: " + node);
rc = KeeperException.Code.CONNECTIONLOSS.intValue();
}
}
}
if ( rc != KeeperException.Code.OK.intValue() )
{
CuratorEventImpl event = new CuratorEventImpl(client, CuratorEventType.CHILDREN, rc, path, null, o, stat, null, strings, null, null);
client.processBackgroundOperation(operationAndData, event);
}
}
};
client.getZooKeeper().getChildren(namespaceAdjustedParentPath, false, callback, null);
}
Example #18
| Source File: DistributedQueue.java From xian with Apache License 2.0 | 4 votes |
|
private void doPutInBackground(final T item, String path, final MultiItem<T> givenMultiItem, byte[] bytes) throws Exception
{
BackgroundCallback callback = new BackgroundCallback()
{
@Override
public void processResult(CuratorFramework client, CuratorEvent event) throws Exception
{
if ( event.getResultCode() != KeeperException.Code.OK.intValue() )
{
return;
}
if ( event.getType() == CuratorEventType.CREATE )
{
synchronized(putCount)
{
putCount.decrementAndGet();
putCount.notifyAll();
}
}
putListenerContainer.forEach
(
new Function<QueuePutListener<T>, Void>()
{
@Override
public Void apply(QueuePutListener<T> listener)
{
if ( item != null )
{
listener.putCompleted(item);
}
else
{
listener.putMultiCompleted(givenMultiItem);
}
return null;
}
}
);
}
};
internalCreateNode(path, bytes, callback);
}
