Package io.pravega.client.admin.impl

Class ReaderGroupManagerImpl

java.lang.Object

io.pravega.client.admin.impl.ReaderGroupManagerImpl

All Implemented Interfaces:

ReaderGroupManager, java.lang.AutoCloseable

public class ReaderGroupManagerImpl
extends java.lang.Object
implements ReaderGroupManager

A stream manager. Used to bootstrap the client.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ReaderGroupManagerImpl.ReaderGroupStateInitSerializer
static class	ReaderGroupManagerImpl.ReaderGroupStateUpdatesSerializer

Constructor Summary

Constructors

Constructor	Description
ReaderGroupManagerImpl(java.lang.String scope, ClientConfig config, ConnectionFactory connectionFactory)
ReaderGroupManagerImpl(java.lang.String scope, Controller controller, AbstractClientFactoryImpl clientFactory)

Method Summary

Modifier and Type	Method	Description
void	close()	Close this manager class.
boolean	createReaderGroup(java.lang.String groupName, ReaderGroupConfig config)	Creates a new ReaderGroup.
void	deleteReaderGroup(java.lang.String groupName)	Deletes a reader group, removing any state associated with it.
ReaderGroup	getReaderGroup(java.lang.String groupName)	Returns the requested reader group.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ReaderGroupManagerImpl

public ReaderGroupManagerImpl(java.lang.String scope,
                              ClientConfig config,
                              ConnectionFactory connectionFactory)

ReaderGroupManagerImpl

public ReaderGroupManagerImpl(java.lang.String scope,
                              Controller controller,
                              AbstractClientFactoryImpl clientFactory)

Method Detail

createReaderGroup

public boolean createReaderGroup(java.lang.String groupName,
                                 ReaderGroupConfig config)
                          throws ConfigMismatchException

Description copied from interface: ReaderGroupManager

Creates a new ReaderGroup. Readers will be able to join the group by calling EventStreamClientFactory.createReader(String, String, Serializer, ReaderConfig) . Once this is done they will start receiving events from the point defined in the config passed here.

Note: This method is idempotent assuming called with the same name and config. This method may block.

Specified by:

createReaderGroup in interface ReaderGroupManager

Parameters:

groupName - The name of the group to be created.

config - The configuration for the new ReaderGroup.

Returns:

True if ReaderGroup was created.

Throws:

ConfigMismatchException - If the reader group already exists with a different configuration. Use ReaderGroup.resetReaderGroup(io.pravega.client.stream.ReaderGroupConfig) to change the reader group configuration.

deleteReaderGroup

public void deleteReaderGroup(java.lang.String groupName)

Description copied from interface: ReaderGroupManager

Deletes a reader group, removing any state associated with it. There should be no reader left on the group when this is called. If there are any, the group will be deleted from underneath them and they will encounter exceptions.

Specified by:

deleteReaderGroup in interface ReaderGroupManager

Parameters:

groupName - The group to be deleted.

getReaderGroup

public ReaderGroup getReaderGroup(java.lang.String groupName)
                           throws ReaderGroupNotFoundException

Description copied from interface: ReaderGroupManager

Returns the requested reader group.

Specified by:

getReaderGroup in interface ReaderGroupManager

Parameters:

groupName - The name of the group

Returns:

Reader group with the given name

Throws:

ReaderGroupNotFoundException - If the reader group does not exist.

close

public void close()

Description copied from interface: ReaderGroupManager

Close this manager class. This will close any connections created through it.

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface ReaderGroupManager

See Also:

AutoCloseable.close()