Package org.nuxeo.runtime.stream

Class StreamServiceImpl

java.lang.Object

org.nuxeo.runtime.model.DefaultComponent

org.nuxeo.runtime.stream.StreamServiceImpl

All Implemented Interfaces:

Adaptable, Component, Extensible, TimestampedService, StreamService

public class StreamServiceImpl
extends DefaultComponent
implements StreamService

Since:

9.3

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected class	StreamServiceImpl.ComponentsLifeCycleListener

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DEFAULT_CODEC
protected Boolean	isStreamProcessingDisabled
protected LogManager	logManager
static final String	STREAM_PROCESSING_ENABLED
protected StreamManager	streamManager
protected static final String	XP_LOG_CONFIG
protected static final String	XP_STREAM_PROCESSOR

Fields inherited from class org.nuxeo.runtime.model.DefaultComponent

lastModified, name

Constructor Summary

Constructors

Constructor	Description
StreamServiceImpl()

Method Summary

Modifier and Type	Method	Description
boolean	await(Name stream, Name computation, Duration duration)	Waits for the computation to have no lag, for internal use only.
protected LogConfig	createKafkaLogConfig(LogConfigDescriptor desc)
protected void	createLogIfNotExists(LogConfigDescriptor config)
protected LogConfig	createMemLogConfig(LogConfigDescriptor desc)
int	getApplicationStartedOrder()	The component notification order for Component.start(ComponentContext).
protected List<LogConfig>	getLogConfigs()
LogManager	getLogManager()
protected String	getNodeId()
protected Settings	getSettings(StreamProcessorDescriptor descriptor)
StreamManager	getStreamManager()
protected void	initProcessor(StreamProcessorDescriptor descriptor)
protected boolean	isProcessingDisabled()
boolean	restartComputation(Name computation)	Restart the computation thread pool.
boolean	setComputationPositionAfterDate(Name computation, Name stream, Instant after)	Moving computation position after a date.
boolean	setComputationPositionToBeginning(Name computation, Name stream)	Moving computation position to the beginning of stream.
boolean	setComputationPositionToEnd(Name computation, Name stream)	Moving computation position to the end of stream.
boolean	setComputationPositionToOffset(Name computation, Name stream, int partition, long offset)	Moving computation position to a specific offset for a partition.
void	start(ComponentContext context)	Start the component.
boolean	startProcessor(String processorName)	Starts a registered Processor.
protected void	startProcessors()
void	stop(ComponentContext context)	Stop the component.
boolean	stopComputation(Name computation)	Stop computation thread pool immediately.
boolean	stopProcessor(String processorName)	Stop a running processor.
void	stopProcessors()

Methods inherited from class org.nuxeo.runtime.model.DefaultComponent

activate, addRuntimeMessage, addRuntimeMessage, deactivate, getAdapter, getDescriptor, getDescriptors, getLastModified, getRegistry, register, registerContribution, registerExtension, setLastModified, setModifiedNow, setName, unregister, unregisterContribution, unregisterExtension

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.nuxeo.runtime.stream.StreamService

getLogManager, getStreamManager

Field Details

DEFAULT_CODEC

public static final String DEFAULT_CODEC

See Also:

• Constant Field Values

XP_LOG_CONFIG

protected static final String XP_LOG_CONFIG

See Also:

• Constant Field Values

XP_STREAM_PROCESSOR

protected static final String XP_STREAM_PROCESSOR

See Also:

• Constant Field Values

logManager

protected LogManager logManager

streamManager

protected StreamManager streamManager

STREAM_PROCESSING_ENABLED

public static final String STREAM_PROCESSING_ENABLED

Since:

11.2

See Also:

• Constant Field Values

isStreamProcessingDisabled

protected Boolean isStreamProcessingDisabled

Constructor Details

StreamServiceImpl

public StreamServiceImpl()

Method Details

getApplicationStartedOrder

public int getApplicationStartedOrder()

Description copied from interface: Component

The component notification order for Component.start(ComponentContext).

Components are notified in increasing order. Order 1000 is the default order for components that don't care. Order 100 is the repository initialization.

Specified by:

getApplicationStartedOrder in interface Component

Returns:

the order, 1000 by default

getLogManager

public LogManager getLogManager()

Specified by:

getLogManager in interface StreamService

getStreamManager

public StreamManager getStreamManager()

Specified by:

getStreamManager in interface StreamService

createLogIfNotExists

protected void createLogIfNotExists(LogConfigDescriptor config)

start

public void start(ComponentContext context)

Description copied from interface: Component

Start the component. This method is called after all the components were resolved and activated

Specified by:

start in interface Component

Overrides:

start in class DefaultComponent

getNodeId

protected String getNodeId()

getLogConfigs

protected List<LogConfig> getLogConfigs()

createMemLogConfig

protected LogConfig createMemLogConfig(LogConfigDescriptor desc)

createKafkaLogConfig

protected LogConfig createKafkaLogConfig(LogConfigDescriptor desc)

initProcessor

protected void initProcessor(StreamProcessorDescriptor descriptor)

getSettings

protected Settings getSettings(StreamProcessorDescriptor descriptor)

stop

public void stop(ComponentContext context)
          throws InterruptedException

Description copied from interface: Component

Stop the component.

Specified by:

stop in interface Component

Overrides:

stop in class DefaultComponent

Throws:

InterruptedException

startProcessors

protected void startProcessors()

stopProcessors

public void stopProcessors()

Specified by:

stopProcessors in interface StreamService

startProcessor

public boolean startProcessor(String processorName)

Description copied from interface: StreamService

Starts a registered Processor. Returns true if the processor has been started.

Specified by:

startProcessor in interface StreamService

stopProcessor

public boolean stopProcessor(String processorName)

Description copied from interface: StreamService

Stop a running processor. Returns true if the processor has been stopped.

Specified by:

stopProcessor in interface StreamService

stopComputation

public boolean stopComputation(Name computation)

Description copied from interface: StreamService

Stop computation thread pool immediately.

Specified by:

stopComputation in interface StreamService

restartComputation

public boolean restartComputation(Name computation)

Description copied from interface: StreamService

Restart the computation thread pool.

Do nothing if the computation thread pool is already started.

Specified by:

restartComputation in interface StreamService

setComputationPositionToEnd

public boolean setComputationPositionToEnd(Name computation,
 Name stream)

Description copied from interface: StreamService

Moving computation position to the end of stream.

The computation thread pool must be stopped using StreamService.stopComputation(Name) before changing its position.

Specified by:

setComputationPositionToEnd in interface StreamService

setComputationPositionToBeginning

public boolean setComputationPositionToBeginning(Name computation,
 Name stream)

Description copied from interface: StreamService

Moving computation position to the beginning of stream.

The computation thread pool must be stopped using StreamService.stopComputation(Name) before changing its position.

Specified by:

setComputationPositionToBeginning in interface StreamService

setComputationPositionToOffset

public boolean setComputationPositionToOffset(Name computation,
 Name stream,
 int partition,
 long offset)

Description copied from interface: StreamService

Moving computation position to a specific offset for a partition.

The computation thread pool must be stopped using StreamService.stopComputation(Name) before changing its position.

Specified by:

setComputationPositionToOffset in interface StreamService

setComputationPositionAfterDate

public boolean setComputationPositionAfterDate(Name computation,
 Name stream,
 Instant after)

Description copied from interface: StreamService

Moving computation position after a date.

The computation thread pool must be stopped using StreamService.stopComputation(Name) before changing its position.

Specified by:

setComputationPositionAfterDate in interface StreamService

await

public boolean await(Name stream,
 Name computation,
 Duration duration)
              throws InterruptedException

Description copied from interface: StreamService

Waits for the computation to have no lag, for internal use only.

Specified by:

await in interface StreamService

Returns:

true if there's no lag between producer and consumer or false if timeout is exceeded

Throws:

InterruptedException

isProcessingDisabled

protected boolean isProcessingDisabled()