org.apache.felix.ipojo.extender.internal.queue

Class JobInfoCallable<T>

java.lang.Object

org.apache.felix.ipojo.extender.internal.queue.JobInfoCallable<T>

All Implemented Interfaces:

java.util.concurrent.Callable<T>, JobInfo

public class JobInfoCallable<T>
extends java.lang.Object
implements java.util.concurrent.Callable<T>, JobInfo

A callable computing job statistics. The job is given as another callable. The statistics are global, so must be used carefully.

Constructor Summary

Constructors

Constructor and Description
JobInfoCallable(QueueNotifier queueNotifier, Statistic statistic, Job<T> delegate, Callback<T> callback, java.lang.String description) Creates the job info callable.

Method Summary

Modifier and Type	Method and Description
T	call() Executes the job.
java.lang.String	getDescription() Gets the job description
long	getEndTime() Gets the completion time.
long	getEnlistmentTime() Gets the submission time of the job.
long	getExecutionDuration() Computes the time spent to execute the job (this does not include the waiting).
java.lang.String	getJobType() Gets the job's type identifier.
long	getStartTime() Gets the starting time.
long	getWaitDuration() Computes the time spent in the waiting queue

Methods inherited from class java.lang.Object

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

Constructor Detail

JobInfoCallable

public JobInfoCallable(QueueNotifier queueNotifier,
                       Statistic statistic,
                       Job<T> delegate,
                       Callback<T> callback,
                       java.lang.String description)

Creates the job info callable.

Parameters:

queueNotifier - notifier for QueueListeners

statistic - the statistics that will be populated

delegate - the real job

callback - the callback notified when the job is completed

description - the job description

Method Detail

call

public T call()
       throws java.lang.Exception

Executes the job. This method updates the statistics.

Specified by:

call in interface java.util.concurrent.Callable<T>

Returns:

the job result

Throws:

java.lang.Exception - the job execution failed

getEnlistmentTime

public long getEnlistmentTime()

Description copied from interface: JobInfo

Gets the submission time of the job.

Specified by:

getEnlistmentTime in interface JobInfo

Returns:

the enlistment date.

getStartTime

public long getStartTime()

Description copied from interface: JobInfo

Gets the starting time. This is the date when the job execution starts.

Specified by:

getStartTime in interface JobInfo

Returns:

the job start date.

getEndTime

public long getEndTime()

Description copied from interface: JobInfo

Gets the completion time. This is the date when the job execution ends.

Specified by:

getEndTime in interface JobInfo

Returns:

the job completion date.

getWaitDuration

public long getWaitDuration()

Computes the time spent in the waiting queue

Specified by:

getWaitDuration in interface JobInfo

Returns:

the waited time, if the job is still waiting, gets the current waited time

getExecutionDuration

public long getExecutionDuration()

Computes the time spent to execute the job (this does not include the waiting). If the job is not executed yet, or is still executing, -1 is returned

Specified by:

getExecutionDuration in interface JobInfo

Returns:

the execution duration, or -1.

getDescription

public java.lang.String getDescription()

Description copied from interface: JobInfo

Gets the job description

Specified by:

getDescription in interface JobInfo

Returns:

the job description

getJobType

public java.lang.String getJobType()

Description copied from interface: JobInfo

Gets the job's type identifier. May be null if not provided.

Specified by:

getJobType in interface JobInfo

Returns:

job type identifier