org.apache.oozie.command.wf
Class SubmitMRXCommand

java.lang.Object
  org.apache.oozie.command.XCommand<T>
      org.apache.oozie.command.wf.WorkflowXCommand<String>
          org.apache.oozie.command.wf.SubmitHttpXCommand
              org.apache.oozie.command.wf.SubmitMRXCommand

All Implemented Interfaces:

Callable<String>, XCallable<String>

public class SubmitMRXCommand
extends SubmitHttpXCommand

Field Summary

Fields inherited from class org.apache.oozie.command.wf.SubmitHttpXCommand

MANDATORY_OOZIE_CONFS, OPTIONAL_OOZIE_CONFS

Fields inherited from class org.apache.oozie.command.XCommand

DEFAULT_LOCK_TIMEOUT, DEFAULT_REQUEUE_DELAY, dryrun, eventService, instrumentation, INSTRUMENTATION_GROUP, LOG, logInfo

Constructor Summary

SubmitMRXCommand(org.apache.hadoop.conf.Configuration conf)

Method Summary

String	getEntityKey() Return the entity key for the command.
protected String	getWorkflowXml(org.apache.hadoop.conf.Configuration conf) Generate workflow xml from conf object
protected boolean	isLockRequired() Indicate if the the command requires locking.
protected void	loadState() Load the necessary state to perform the precondition check and to execute the command.
protected void	verifyPrecondition() Verify the precondition for the command after a lock has been obtain, just before executing the command.

Methods inherited from class org.apache.oozie.command.wf.SubmitHttpXCommand

execute

Methods inherited from class org.apache.oozie.command.wf.WorkflowXCommand

generateEvent, generateEvent, generateEvent

Methods inherited from class org.apache.oozie.command.XCommand

call, eagerLoadState, eagerVerifyPrecondition, executeInterrupts, getCreatedTime, getInstrumentation, getKey, getLockTimeOut, getLog, getName, getPriority, getRequeueDelay, getType, inInterruptMode, isReQueueRequired, queue, queue, resetUsed, setInterruptMode

Methods inherited from class java.lang.Object

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

Constructor Detail

SubmitMRXCommand

public SubmitMRXCommand(org.apache.hadoop.conf.Configuration conf)

Method Detail

getWorkflowXml

protected String getWorkflowXml(org.apache.hadoop.conf.Configuration conf)

Description copied from class: SubmitHttpXCommand

Generate workflow xml from conf object

Specified by:

getWorkflowXml in class SubmitHttpXCommand

Parameters:

conf - the configuration object

Returns:

workflow xml def string representation

getEntityKey

public String getEntityKey()

Description copied from class: XCommand

Return the entity key for the command.

Specified by:

getEntityKey in interface XCallable<String>

Specified by:

getEntityKey in class XCommand<String>

Returns:

the entity key for the command.

isLockRequired

protected boolean isLockRequired()

Description copied from class: XCommand

Indicate if the the command requires locking.

Subclasses should override this method if they require locking.

Specified by:

isLockRequired in class XCommand<String>

Returns:

true/false

loadState

protected void loadState()

Description copied from class: XCommand

Load the necessary state to perform the precondition check and to execute the command.

Subclasses must implement this method and load the state needed to do the precondition check and execute the command.

Specified by:

loadState in class XCommand<String>

verifyPrecondition

protected void verifyPrecondition()
                           throws CommandException

Description copied from class: XCommand

Verify the precondition for the command after a lock has been obtain, just before executing the command.

Specified by:

verifyPrecondition in class XCommand<String>

Throws:

CommandException - thrown if the precondition is not met.