Java Code Examples for org.apache.curator.RetryLoop#callWithRetry()
The following examples show how to use
org.apache.curator.RetryLoop#callWithRetry() .
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Example 1
| Source File: TestThreadLocalRetryLoop.java From curator with Apache License 2.0 | 6 votes |
|
private Void doOperation(CuratorFramework client) throws Exception
{
try
{
RetryLoop.callWithRetry(client.getZookeeperClient(), () -> {
client.checkExists().forPath("/hey");
return null;
});
Assert.fail("Should have thrown an exception");
}
catch ( KeeperException dummy )
{
// correct
}
return null;
}
Example 2
| Source File: AddWatchBuilderImpl.java From curator with Apache License 2.0 | 6 votes |
|
private void pathInForeground(final String path) throws Exception
{
final String fixedPath = client.fixForNamespace(path);
OperationTrace trace = client.getZookeeperClient().startAdvancedTracer("AddWatchBuilderImpl-Foreground");
RetryLoop.callWithRetry
(
client.getZookeeperClient(), () -> {
if ( watching.isWatched() )
{
client.getZooKeeper().addWatch(fixedPath, mode);
}
else
{
client.getZooKeeper().addWatch(fixedPath, watching.getWatcher(path), mode);
}
return null;
});
trace.setPath(fixedPath).setWithWatcher(true).commit();
}
Example 3
| Source File: SetACLBuilderImpl.java From curator with Apache License 2.0 | 6 votes |
|
private Stat pathInForeground(final String path, final List<ACL> aclList) throws Exception
{
OperationTrace trace = client.getZookeeperClient().startAdvancedTracer("SetACLBuilderImpl-Foreground");
Stat resultStat = RetryLoop.callWithRetry
(
client.getZookeeperClient(),
new Callable<Stat>()
{
@Override
public Stat call() throws Exception
{
return client.getZooKeeper().setACL(path, aclList, version);
}
}
);
trace.setPath(path).setStat(resultStat).commit();
return resultStat;
}
Example 4
| Source File: CuratorTransactionImpl.java From curator with Apache License 2.0 | 6 votes |
|
@Override
public Collection<CuratorTransactionResult> commit() throws Exception
{
Preconditions.checkState(!isCommitted, "transaction already committed");
isCommitted = true;
List<OpResult> resultList = RetryLoop.callWithRetry
(
client.getZookeeperClient(),
new Callable<List<OpResult>>()
{
@Override
public List<OpResult> call() throws Exception
{
return doOperation();
}
}
);
if ( resultList.size() != transaction.metadataSize() )
{
throw new IllegalStateException(String.format("Result size (%d) doesn't match input size (%d)", resultList.size(), transaction.metadataSize()));
}
return wrapResults(client, resultList, transaction);
}
Example 5
| Source File: ReconfigBuilderImpl.java From curator with Apache License 2.0 | 6 votes |
|
private byte[] ensembleInForeground() throws Exception
{
TimeTrace trace = client.getZookeeperClient().startTracer("ReconfigBuilderImpl-Foreground");
byte[] responseData = RetryLoop.callWithRetry
(
client.getZookeeperClient(),
new Callable<byte[]>()
{
@Override
public byte[] call() throws Exception
{
return ((ZooKeeperAdmin)client.getZooKeeper()).reconfigure(joining, leaving, newMembers, fromConfig, responseStat);
}
}
);
trace.commit();
return responseData;
}
Example 6
| Source File: SetDataBuilderImpl.java From curator with Apache License 2.0 | 6 votes |
|
private Stat pathInForeground(final String path, final byte[] data) throws Exception
{
OperationTrace trace = client.getZookeeperClient().startAdvancedTracer("SetDataBuilderImpl-Foreground");
Stat resultStat = RetryLoop.callWithRetry
(
client.getZookeeperClient(),
new Callable<Stat>()
{
@Override
public Stat call() throws Exception
{
return client.getZooKeeper().setData(path, data, version);
}
}
);
trace.setRequestBytesLength(data).setPath(path).setStat(resultStat).commit();
return resultStat;
}
Example 7
| Source File: TempGetDataBuilderImpl.java From curator with Apache License 2.0 | 6 votes |
|
@Override
public byte[] forPath(String path) throws Exception
{
final String localPath = client.fixForNamespace(path);
OperationTrace trace = client.getZookeeperClient().startAdvancedTracer("GetDataBuilderImpl-Foreground");
byte[] responseData = RetryLoop.callWithRetry
(
client.getZookeeperClient(),
new Callable<byte[]>()
{
@Override
public byte[] call() throws Exception
{
return client.getZooKeeper().getData(localPath, false, responseStat);
}
}
);
trace.setResponseBytesLength(responseData).setPath(path).setStat(responseStat).commit();
return decompress ? client.getCompressionProvider().decompress(path, responseData) : responseData;
}
Example 8
| Source File: EnsurePath.java From curator with Apache License 2.0 | 6 votes |
|
@Override
public synchronized void ensure(final CuratorZookeeperClient client, final String path, final boolean makeLastNode) throws Exception
{
if ( !isSet )
{
RetryLoop.callWithRetry
(
client,
new Callable<Object>()
{
@Override
public Object call() throws Exception
{
ZKPaths.mkdirs(client.getZooKeeper(), path, makeLastNode, aclProvider, asContainers());
helper.set(doNothingHelper);
isSet = true;
return null;
}
}
);
}
}
Example 9
| Source File: EnsurePath.java From xian with Apache License 2.0 | 6 votes |
|
@Override
public synchronized void ensure(final CuratorZookeeperClient client, final String path, final boolean makeLastNode) throws Exception
{
if ( !isSet )
{
RetryLoop.callWithRetry
(
client,
new Callable<Object>()
{
@Override
public Object call() throws Exception
{
ZKPaths.mkdirs(client.getZooKeeper(), path, makeLastNode, aclProvider, asContainers());
helper.set(doNothingHelper);
isSet = true;
return null;
}
}
);
}
}
Example 10
| Source File: GetACLBuilderImpl.java From xian with Apache License 2.0 | 6 votes |
|
private List<ACL> pathInForeground(final String path) throws Exception
{
OperationTrace trace = client.getZookeeperClient().startAdvancedTracer("GetACLBuilderImpl-Foreground");
List<ACL> result = RetryLoop.callWithRetry
(
client.getZookeeperClient(),
new Callable<List<ACL>>()
{
@Override
public List<ACL> call() throws Exception
{
return client.getZooKeeper().getACL(path, responseStat);
}
}
);
trace.setPath(path).setStat(responseStat).commit();
return result;
}
Example 11
| Source File: SetACLBuilderImpl.java From xian with Apache License 2.0 | 6 votes |
|
private Stat pathInForeground(final String path) throws Exception
{
OperationTrace trace = client.getZookeeperClient().startAdvancedTracer("SetACLBuilderImpl-Foreground");
Stat resultStat = RetryLoop.callWithRetry
(
client.getZookeeperClient(),
new Callable<Stat>()
{
@Override
public Stat call() throws Exception
{
return client.getZooKeeper().setACL(path, acling.getAclList(path), version);
}
}
);
trace.setPath(path).setStat(resultStat).commit();
return resultStat;
}
Example 12
| Source File: SetDataBuilderImpl.java From xian with Apache License 2.0 | 6 votes |
|
private Stat pathInForeground(final String path, final byte[] data) throws Exception
{
OperationTrace trace = client.getZookeeperClient().startAdvancedTracer("SetDataBuilderImpl-Foreground");
Stat resultStat = RetryLoop.callWithRetry
(
client.getZookeeperClient(),
new Callable<Stat>()
{
@Override
public Stat call() throws Exception
{
return client.getZooKeeper().setData(path, data, version);
}
}
);
trace.setRequestBytesLength(data).setPath(path).setStat(resultStat).commit();
return resultStat;
}
Example 13
| Source File: TempGetDataBuilderImpl.java From xian with Apache License 2.0 | 6 votes |
|
@Override
public byte[] forPath(String path) throws Exception
{
final String localPath = client.fixForNamespace(path);
OperationTrace trace = client.getZookeeperClient().startAdvancedTracer("GetDataBuilderImpl-Foreground");
byte[] responseData = RetryLoop.callWithRetry
(
client.getZookeeperClient(),
new Callable<byte[]>()
{
@Override
public byte[] call() throws Exception
{
return client.getZooKeeper().getData(localPath, false, responseStat);
}
}
);
trace.setResponseBytesLength(responseData).setPath(path).setStat(responseStat).commit();
return decompress ? client.getCompressionProvider().decompress(path, responseData) : responseData;
}
Example 14
| Source File: CuratorTransactionImpl.java From xian with Apache License 2.0 | 5 votes |
|
@Override
public Collection<CuratorTransactionResult> commit() throws Exception
{
Preconditions.checkState(!isCommitted, "transaction already committed");
isCommitted = true;
final AtomicBoolean firstTime = new AtomicBoolean(true);
List<OpResult> resultList = RetryLoop.callWithRetry
(
client.getZookeeperClient(),
new Callable<List<OpResult>>()
{
@Override
public List<OpResult> call() throws Exception
{
return doOperation(firstTime);
}
}
);
if ( resultList.size() != transaction.metadataSize() )
{
throw new IllegalStateException(String.format("Result size (%d) doesn't match input size (%d)", resultList.size(), transaction.metadataSize()));
}
ImmutableList.Builder<CuratorTransactionResult> builder = ImmutableList.builder();
for ( int i = 0; i < resultList.size(); ++i )
{
OpResult opResult = resultList.get(i);
CuratorMultiTransactionRecord.TypeAndPath metadata = transaction.getMetadata(i);
CuratorTransactionResult curatorResult = makeCuratorResult(opResult, metadata);
builder.add(curatorResult);
}
return builder.build();
}
Example 15
| Source File: GetConfigBuilderImpl.java From curator with Apache License 2.0 | 5 votes |
|
private byte[] configInForeground() throws Exception
{
TimeTrace trace = client.getZookeeperClient().startTracer("GetConfigBuilderImpl-Foreground");
try
{
return RetryLoop.callWithRetry
(
client.getZookeeperClient(),
new Callable<byte[]>()
{
@Override
public byte[] call() throws Exception
{
if ( watching.isWatched() )
{
return client.getZooKeeper().getConfig(true, stat);
}
byte[] config = client.getZooKeeper().getConfig(watching.getWatcher(ZooDefs.CONFIG_NODE), stat);
watching.commitWatcher(KeeperException.NoNodeException.Code.OK.intValue(), false);
return config;
}
}
);
}
finally
{
trace.commit();
}
}
Example 16
| Source File: NamespaceImpl.java From xian with Apache License 2.0 | 5 votes |
|
String fixForNamespace(String path, boolean isSequential)
{
if ( ensurePathNeeded.get() )
{
try
{
final CuratorZookeeperClient zookeeperClient = client.getZookeeperClient();
RetryLoop.callWithRetry
(
zookeeperClient,
new Callable<Object>()
{
@Override
public Object call() throws Exception
{
ZKPaths.mkdirs(zookeeperClient.getZooKeeper(), ZKPaths.makePath("/", namespace), true, client.getAclProvider(), true);
return null;
}
}
);
ensurePathNeeded.set(false);
}
catch ( Exception e )
{
ThreadUtils.checkInterrupted(e);
client.logError("Ensure path threw exception", e);
}
}
return ZKPaths.fixForNamespace(namespace, path, isSequential);
}
Example 17
| Source File: NamespaceImpl.java From curator with Apache License 2.0 | 5 votes |
|
String fixForNamespace(String path, boolean isSequential)
{
if ( ensurePathNeeded.get() )
{
try
{
final CuratorZookeeperClient zookeeperClient = client.getZookeeperClient();
RetryLoop.callWithRetry
(
zookeeperClient,
new Callable<Object>()
{
@Override
public Object call() throws Exception
{
ZKPaths.mkdirs(zookeeperClient.getZooKeeper(), ZKPaths.makePath("/", namespace), true, client.getAclProvider(), true);
return null;
}
}
);
ensurePathNeeded.set(false);
}
catch ( Exception e )
{
ThreadUtils.checkInterrupted(e);
client.logError("Ensure path threw exception", e);
}
}
return ZKPaths.fixForNamespace(namespace, path, isSequential);
}
Example 18
| Source File: CreateBuilderImpl.java From xian with Apache License 2.0 | 5 votes |
|
private String findProtectedNodeInForeground(final String path) throws Exception
{
OperationTrace trace = client.getZookeeperClient().startAdvancedTracer("CreateBuilderImpl-findProtectedNodeInForeground");
String returnPath = RetryLoop.callWithRetry
(
client.getZookeeperClient(),
new Callable<String>()
{
@Override
public String call() throws Exception
{
String foundNode = null;
try
{
final ZKPaths.PathAndNode pathAndNode = ZKPaths.getPathAndNode(path);
List<String> children = client.getZooKeeper().getChildren(pathAndNode.getPath(), false);
foundNode = findNode(children, pathAndNode.getPath(), protectedId);
}
catch ( KeeperException.NoNodeException ignore )
{
// ignore
}
return foundNode;
}
}
);
trace.setPath(path).commit();
return returnPath;
}
Example 19
| Source File: CreateBuilderImpl.java From xian with Apache License 2.0 | 4 votes |
|
private String pathInForeground(final String path, final byte[] data) throws Exception
{
OperationTrace trace = client.getZookeeperClient().startAdvancedTracer("CreateBuilderImpl-Foreground");
final AtomicBoolean firstTime = new AtomicBoolean(true);
String returnPath = RetryLoop.callWithRetry
(
client.getZookeeperClient(),
new Callable<String>()
{
@Override
public String call() throws Exception
{
boolean localFirstTime = firstTime.getAndSet(false) && !debugForceFindProtectedNode;
String createdPath = null;
if ( !localFirstTime && doProtected )
{
debugForceFindProtectedNode = false;
createdPath = findProtectedNodeInForeground(path);
}
if ( createdPath == null )
{
try
{
createdPath = client.getZooKeeper().create(path, data, acling.getAclList(path), createMode);
}
catch ( KeeperException.NoNodeException e )
{
if ( createParentsIfNeeded )
{
ZKPaths.mkdirs(client.getZooKeeper(), path, false, client.getAclProvider(), createParentsAsContainers);
createdPath = client.getZooKeeper().create(path, data, acling.getAclList(path), createMode);
}
else
{
throw e;
}
}
}
if ( failNextCreateForTesting )
{
failNextCreateForTesting = false;
throw new KeeperException.ConnectionLossException();
}
return createdPath;
}
}
);
trace.setRequestBytesLength(data).setPath(path).commit();
return returnPath;
}
Example 20
| Source File: TestExhibitorEnsembleProvider.java From xian with Apache License 2.0 | 4 votes |
|
@Test
public void testChanging() throws Exception
{
TestingServer secondServer = new TestingServer();
try
{
String mainConnectionString = "count=1&port=" + server.getPort() + "&server0=localhost";
String secondConnectionString = "count=1&port=" + secondServer.getPort() + "&server0=localhost";
final Semaphore semaphore = new Semaphore(0);
final AtomicReference<String> connectionString = new AtomicReference<String>(mainConnectionString);
Exhibitors exhibitors = new Exhibitors(Lists.newArrayList("foo", "bar"), 1000, dummyConnectionStringProvider);
ExhibitorRestClient mockRestClient = new ExhibitorRestClient()
{
@Override
public String getRaw(String hostname, int port, String uriPath, String mimeType) throws Exception
{
semaphore.release();
return connectionString.get();
}
};
ExhibitorEnsembleProvider provider = new ExhibitorEnsembleProvider(exhibitors, mockRestClient, "/foo", 10, new RetryOneTime(1));
provider.pollForInitialEnsemble();
Timing timing = new Timing().multiple(4);
final CuratorZookeeperClient client = new CuratorZookeeperClient(provider, timing.session(), timing.connection(), null, new RetryOneTime(2));
client.start();
try
{
RetryLoop.callWithRetry
(
client,
new Callable<Object>()
{
@Override
public Object call() throws Exception
{
client.getZooKeeper().create("/test", new byte[0], ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
return null;
}
}
);
connectionString.set(secondConnectionString);
semaphore.drainPermits();
semaphore.acquire();
server.stop(); // create situation where the current zookeeper gets a sys-disconnected
Stat stat = RetryLoop.callWithRetry
(
client,
new Callable<Stat>()
{
@Override
public Stat call() throws Exception
{
return client.getZooKeeper().exists("/test", false);
}
}
);
Assert.assertNull(stat); // it's a different server so should be null
}
finally
{
client.close();
}
}
finally
{
CloseableUtils.closeQuietly(secondServer);
}
}
