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java.lang.Object org.apache.oozie.command.XCommand<T> org.apache.oozie.command.wf.WorkflowXCommand<Void> org.apache.oozie.command.wf.ActionXCommand<Void> org.apache.oozie.command.wf.ActionCheckXCommand
public class ActionCheckXCommand
Executes the check command for ActionHandlers.
Ensures the action is in RUNNING state before executingActionExecutor.check(org.apache.oozie.action.ActionExecutor.Context, org.apache.oozie.client.WorkflowAction)
Nested Class Summary |
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Nested classes/interfaces inherited from class org.apache.oozie.command.wf.ActionXCommand |
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ActionXCommand.ActionExecutorContext |
Field Summary | |
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static String |
EXEC_DATA_MISSING
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Fields inherited from class org.apache.oozie.command.wf.ActionXCommand |
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INSTR_FAILED_JOBS_COUNTER, RECOVERY_ID_SEPARATOR |
Fields inherited from class org.apache.oozie.command.XCommand |
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DEFAULT_LOCK_TIMEOUT, DEFAULT_REQUEUE_DELAY, dryrun, instrumentation, LOG, logInfo |
Constructor Summary | |
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ActionCheckXCommand(String actionId)
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ActionCheckXCommand(String actionId,
int checkDelay)
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ActionCheckXCommand(String actionId,
int priority,
int checkDelay)
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Method Summary | |
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protected void |
eagerLoadState()
Load the necessary state to perform an eager precondition check. |
protected void |
eagerVerifyPrecondition()
Verify the precondition for the command before obtaining a lock. |
protected Void |
execute()
Command execution body. |
String |
getEntityKey()
Return the entity key for the command. |
protected long |
getRetryInterval()
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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.ActionXCommand |
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addActionCron, failJob, handleError, handleNonTransient, handleTransient, handleUserRetry, incrActionCounter |
Methods inherited from class org.apache.oozie.command.XCommand |
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call, executeInterrupts, getCreatedTime, getInstrumentation, getKey, getLockTimeOut, getLog, getName, getPriority, getRequeueDelay, getType, inInterruptMode, isReQueueRequired, queue, queue, resetUsed, setInterruptMode |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final String EXEC_DATA_MISSING
Constructor Detail |
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public ActionCheckXCommand(String actionId)
public ActionCheckXCommand(String actionId, int priority, int checkDelay)
public ActionCheckXCommand(String actionId, int checkDelay)
Method Detail |
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protected void eagerLoadState() throws CommandException
XCommand
eagerLoadState
in class XCommand<Void>
CommandException
protected void eagerVerifyPrecondition() throws CommandException, PreconditionException
XCommand
eagerVerifyPrecondition
in class XCommand<Void>
CommandException
- thrown if the precondition is not met.
PreconditionException
protected boolean isLockRequired()
XCommand
isLockRequired
in class XCommand<Void>
true/false
public String getEntityKey()
XCommand
getEntityKey
in interface XCallable<Void>
getEntityKey
in class XCommand<Void>
protected void loadState() throws CommandException
XCommand
loadState
in class XCommand<Void>
CommandException
protected void verifyPrecondition() throws CommandException, PreconditionException
XCommand
verifyPrecondition
in class XCommand<Void>
CommandException
- thrown if the precondition is not met.
PreconditionException
protected Void execute() throws CommandException
XCommand
execute
in class XCommand<Void>
CommandException
- thrown if the command execution failed.protected long getRetryInterval()
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