Package io.streamthoughts.azkarra.api

Interface AzkarraStreamsService

All Known Implementing Classes:

LocalAzkarraStreamsService

public interface AzkarraStreamsService

The AzkarraStreamsService serves as the main front-facing interface for manipulating streams applications.

Method Summary

Modifier and Type	Method	Description
void	addNewEnvironment(String name, Conf conf)	Adds a new environment to this application.
void	deleteStreams(String applicationId)	Deletes the streams instance for the specified streams application.
Set<Environment>	getAllEnvironments()	Gets all existing streams environments.
Collection<String>	getAllStreams()	Returns the list of all running streams applications.
Conf	getContextConfig()
KafkaStreamsContainer	getStreamsById(String applicationId)	Returns the KafkaStreamsContainer for the specified streams application.
Conf	getStreamsConfigById(String applicationId)	Returns the Conf for the specified streams application.
Set<StreamsServerInfo>	getStreamsInstancesById(String applicationId)	Gets all local and remote streams instances for the specified streams application.
Set<MetricGroup>	getStreamsMetricsById(String applicationId)	Gets all metrics for the specified streams application.
Set<MetricGroup>	getStreamsMetricsById(String applicationId, Predicate<Tuple<String,Metric>> filter)	Gets metrics for the specified streams application matching a predicate.
StreamsStatus	getStreamsStatusById(String applicationId)	Returns the status for the specified streams application.
StreamsTopologyGraph	getStreamsTopologyById(String applicationId)	Returns the StreamsTopologyGraph for the specified streams application.
Set<TopologyDescriptor>	getTopologyProviders()	Gets all topologies available locally.
<K,V> QueryResult<K,V>	query(String applicationId, Query<K,V> query, QueryParams parameters, Queried options)	Executes an interactive query for the specified streams application.
void	restartStreams(String applicationId)	Restarts the streams instance for the specified streams application.
ApplicationId	startStreamsTopology(String topologyType, String topologyVersion, String env, Executed executed)	Creates and starts a new streams job for the specified topology into the specified environment.
void	stopStreams(String applicationId, boolean cleanUp)	Stops the streams instance for the specified streams application.

Method Detail

getAllStreams

Collection<String> getAllStreams()

Returns the list of all running streams applications.

Returns:

a list of string ids.

See Also:

StreamsConfig.APPLICATION_ID_CONFIG

getStreamsConfigById

Conf getStreamsConfigById(String applicationId)

Returns the Conf for the specified streams application.

Parameters:

applicationId - the streams application id.

Returns:

a Optional of Conf.

Throws:

NotFoundException - if not application exists for the id.

getStreamsById

KafkaStreamsContainer getStreamsById(String applicationId)

Returns the KafkaStreamsContainer for the specified streams application.

Parameters:

applicationId - the streams application id.

Returns:

a KafkaStreamsContainer instance.

Throws:

NotFoundException - if not application exists for the id.

getStreamsStatusById

StreamsStatus getStreamsStatusById(String applicationId)

Returns the status for the specified streams application.

Parameters:

applicationId - the streams application id.

Returns:

a StreamsStatus instance.

Throws:

NotFoundException - if not application exists for the id.

getStreamsTopologyById

StreamsTopologyGraph getStreamsTopologyById(String applicationId)

Returns the StreamsTopologyGraph for the specified streams application.

Parameters:

applicationId - the streams application id.

Returns:

a StreamsTopologyGraph instance.

Throws:

NotFoundException - if not application exists for the id.

startStreamsTopology

ApplicationId startStreamsTopology(String topologyType,
                                   String topologyVersion,
                                   String env,
                                   Executed executed)

Creates and starts a new streams job for the specified topology into the specified environment.

Parameters:

topologyType - the topology type.

topologyVersion - the topology topologyVersion.

env - the environment name.

executed - the Executed instance.

Returns:

the streams application.id

getTopologyProviders

Set<TopologyDescriptor> getTopologyProviders()

Gets all topologies available locally.

Returns:

a set of TopologyDescriptor instance.

getStreamsMetricsById

Set<MetricGroup> getStreamsMetricsById(String applicationId)

Gets all metrics for the specified streams application.

Parameters:

applicationId - the streams application id.

Returns:

a set of MetricGroup instance.

Throws:

NotFoundException - if not application exists for the id.

getStreamsMetricsById

Set<MetricGroup> getStreamsMetricsById(String applicationId,
                                       Predicate<Tuple<String,Metric>> filter)

Gets metrics for the specified streams application matching a predicate.

Parameters:

applicationId - the streams application id.

filter - the Predicate to be used for filtering Metric.

Returns:

a set of MetricGroup instance.

getContextConfig

Conf getContextConfig()

getAllEnvironments

Set<Environment> getAllEnvironments()

Gets all existing streams environments.

Returns:

a set of Environment instance.

addNewEnvironment

void addNewEnvironment(String name,
                       Conf conf)

Adds a new environment to this application.

Parameters:

name - the environment name.

conf - the environment configuration.

getStreamsInstancesById

Set<StreamsServerInfo> getStreamsInstancesById(String applicationId)

Gets all local and remote streams instances for the specified streams application.

Parameters:

applicationId - the streams application id.

Returns:

the set of StreamsServerInfo instances.

Throws:

NotFoundException - if not application exists for the id.

stopStreams

void stopStreams(String applicationId,
                 boolean cleanUp)

Stops the streams instance for the specified streams application.

Parameters:

applicationId - the streams application id.

cleanUp - the flag to indicate if the local streams states should be cleaned up.

Throws:

NotFoundException - if not application exists for the id.

restartStreams

void restartStreams(String applicationId)

Restarts the streams instance for the specified streams application.

Parameters:

applicationId - the streams application id.

Throws:

NotFoundException - if not application exists for the id.

deleteStreams

void deleteStreams(String applicationId)

Deletes the streams instance for the specified streams application.

Parameters:

applicationId - the streams application id.

Throws:

NotFoundException - if not application exists for the id.

query

<K,V> QueryResult<K,V> query(String applicationId,
                                         Query<K,V> query,
                                         QueryParams parameters,
                                         Queried options)

Executes an interactive query for the specified streams application.

Parameters:

applicationId - the streams application id.

query - the Query instance.

parameters - the query parameters.

options - the query execution options.

Returns:

the QueryResult instance.