org.apache.s4.comm.topology
Class RemoteStreams
java.lang.Object
org.apache.s4.comm.topology.RemoteStreams
- All Implemented Interfaces:
- org.I0Itec.zkclient.IZkChildListener, org.I0Itec.zkclient.IZkStateListener
public class RemoteStreams
- extends java.lang.Object
- implements org.I0Itec.zkclient.IZkStateListener, org.I0Itec.zkclient.IZkChildListener
Monitors streams available in the S4 cluster.
Maintains a data structure reflecting the currently published streams with their consumers and publishers.
Provides methods to publish producers and consumers of streams
Constructor Summary |
RemoteStreams(java.lang.String zookeeperAddress,
int sessionTimeout,
int connectionTimeout)
|
Method Summary |
void |
addInputStream(int appId,
java.lang.String clusterName,
java.lang.String streamName)
Publishes interest in a stream from an application. |
void |
addOutputStream(java.lang.String appId,
java.lang.String clusterName,
java.lang.String streamName)
|
java.util.Set<StreamConsumer> |
getConsumers(java.lang.String streamName)
|
void |
handleChildChange(java.lang.String paramString,
java.util.List<java.lang.String> paramList)
|
void |
handleNewSession()
|
void |
handleStateChanged(org.apache.zookeeper.Watcher.Event.KeeperState state)
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
RemoteStreams
@Inject
public RemoteStreams(java.lang.String zookeeperAddress,
int sessionTimeout,
int connectionTimeout)
throws java.lang.Exception
- Throws:
java.lang.Exception
getConsumers
public java.util.Set<StreamConsumer> getConsumers(java.lang.String streamName)
handleStateChanged
public void handleStateChanged(org.apache.zookeeper.Watcher.Event.KeeperState state)
throws java.lang.Exception
- Specified by:
handleStateChanged
in interface org.I0Itec.zkclient.IZkStateListener
- Throws:
java.lang.Exception
handleNewSession
public void handleNewSession()
throws java.lang.Exception
- Specified by:
handleNewSession
in interface org.I0Itec.zkclient.IZkStateListener
- Throws:
java.lang.Exception
handleChildChange
public void handleChildChange(java.lang.String paramString,
java.util.List<java.lang.String> paramList)
throws java.lang.Exception
- Specified by:
handleChildChange
in interface org.I0Itec.zkclient.IZkChildListener
- Throws:
java.lang.Exception
addOutputStream
public void addOutputStream(java.lang.String appId,
java.lang.String clusterName,
java.lang.String streamName)
addInputStream
public void addInputStream(int appId,
java.lang.String clusterName,
java.lang.String streamName)
- Publishes interest in a stream from an application.
- Parameters:
appId
- clusterName
- streamName
-