org.springframework.yarn.support

Class YarnContextUtils

java.lang.Object

org.springframework.yarn.support.YarnContextUtils

public class YarnContextUtils
extends java.lang.Object

Utility methods for accessing common components from the BeanFactory.

Author:

Janne Valkealahti

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	CONVERSION_SERVICE_BEAN_NAME
static java.lang.String	EVALUATION_CONTEXT_BEAN_NAME
static java.lang.String	TASK_EXECUTOR_BEAN_NAME
static java.lang.String	TASK_SCHEDULER_BEAN_NAME

Constructor Summary

Constructors

Constructor and Description
YarnContextUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static AppmasterService	getAppmasterClientService(org.springframework.beans.factory.BeanFactory beanFactory) Return the AppmasterService bean whose name is "yarnClientAmservice" if available.
static AppmasterService	getAppmasterService(org.springframework.beans.factory.BeanFactory beanFactory) Return the AppmasterService bean whose name is "yarnAmservice" if available.
static AppmasterTrackService	getAppmasterTrackService(org.springframework.beans.factory.BeanFactory beanFactory) Return the AppmasterTrackService bean whose name is "yarnAmTrackservice" if available.
static ContainerShutdown	getContainerShutdown(org.springframework.beans.factory.BeanFactory beanFactory) Return the ContainerShutdown bean whose name is "yarnContainerShutdown" if available.
static org.springframework.core.convert.ConversionService	getConversionService(org.springframework.beans.factory.BeanFactory beanFactory) Return the ConversionService bean whose name is "yarnConversionService" if available.
static org.springframework.expression.spel.support.StandardEvaluationContext	getEvaluationContext(org.springframework.beans.factory.BeanFactory beanFactory) Return the StandardEvaluationContext bean whose name is "yarnEvaluationContext" if available.
static YarnEventPublisher	getEventPublisher(org.springframework.beans.factory.BeanFactory beanFactory) Return the YarnEventPublisher bean whose name is "yarnEventPublisher" if available.
static org.springframework.core.task.TaskExecutor	getTaskExecutor(org.springframework.beans.factory.BeanFactory beanFactory) Return the TaskScheduler bean whose name is "taskExecutor" if available.
static org.springframework.scheduling.TaskScheduler	getTaskScheduler(org.springframework.beans.factory.BeanFactory beanFactory) Return the TaskScheduler bean whose name is "taskScheduler" if available.

Methods inherited from class java.lang.Object

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

Field Detail

TASK_SCHEDULER_BEAN_NAME

public static final java.lang.String TASK_SCHEDULER_BEAN_NAME

See Also:

Constant Field Values

TASK_EXECUTOR_BEAN_NAME

public static final java.lang.String TASK_EXECUTOR_BEAN_NAME

See Also:

Constant Field Values

CONVERSION_SERVICE_BEAN_NAME

public static final java.lang.String CONVERSION_SERVICE_BEAN_NAME

See Also:

Constant Field Values

EVALUATION_CONTEXT_BEAN_NAME

public static final java.lang.String EVALUATION_CONTEXT_BEAN_NAME

See Also:

Constant Field Values

Constructor Detail

YarnContextUtils

public YarnContextUtils()

Method Detail

getTaskScheduler

public static org.springframework.scheduling.TaskScheduler getTaskScheduler(org.springframework.beans.factory.BeanFactory beanFactory)

Return the TaskScheduler bean whose name is "taskScheduler" if available.

Parameters:

beanFactory - BeanFactory for lookup, must not be null.

Returns:

task scheduler

getTaskExecutor

public static org.springframework.core.task.TaskExecutor getTaskExecutor(org.springframework.beans.factory.BeanFactory beanFactory)

Return the TaskScheduler bean whose name is "taskExecutor" if available.

Parameters:

beanFactory - BeanFactory for lookup, must not be null.

Returns:

task executor

getConversionService

public static org.springframework.core.convert.ConversionService getConversionService(org.springframework.beans.factory.BeanFactory beanFactory)

Return the ConversionService bean whose name is "yarnConversionService" if available.

Parameters:

beanFactory - BeanFactory for lookup, must not be null.

Returns:

The ConversionService bean whose name is "yarnConversionService" if available.

getEvaluationContext

public static org.springframework.expression.spel.support.StandardEvaluationContext getEvaluationContext(org.springframework.beans.factory.BeanFactory beanFactory)

Return the StandardEvaluationContext bean whose name is "yarnEvaluationContext" if available.

Parameters:

beanFactory - BeanFactory for lookup, must not be null.

Returns:

the instance of StandardEvaluationContext bean whose name is "yarnEvaluationContext" .

getAppmasterService

public static AppmasterService getAppmasterService(org.springframework.beans.factory.BeanFactory beanFactory)

Return the AppmasterService bean whose name is "yarnAmservice" if available.

Parameters:

beanFactory - BeanFactory for lookup, must not be null.

Returns:

appmaster service

getAppmasterClientService

public static AppmasterService getAppmasterClientService(org.springframework.beans.factory.BeanFactory beanFactory)

Return the AppmasterService bean whose name is "yarnClientAmservice" if available. This bean should be the one providing rpc api for external clients talking to Application Master.

Parameters:

beanFactory - BeanFactory for lookup, must not be null.

Returns:

appmaster service

getAppmasterTrackService

public static AppmasterTrackService getAppmasterTrackService(org.springframework.beans.factory.BeanFactory beanFactory)

Return the AppmasterTrackService bean whose name is "yarnAmTrackservice" if available.

Parameters:

beanFactory - BeanFactory for lookup, must not be null.

Returns:

appmaster track service

getEventPublisher

public static YarnEventPublisher getEventPublisher(org.springframework.beans.factory.BeanFactory beanFactory)

Return the YarnEventPublisher bean whose name is "yarnEventPublisher" if available.

Parameters:

beanFactory - BeanFactory for lookup, must not be null.

Returns:

yarn event publisher

getContainerShutdown

public static ContainerShutdown getContainerShutdown(org.springframework.beans.factory.BeanFactory beanFactory)

Return the ContainerShutdown bean whose name is "yarnContainerShutdown" if available.

Parameters:

beanFactory - BeanFactory for lookup, must not be null.

Returns:

yarn container shutdown