Package org.deltava.taskman

Class TaskScheduler

java.lang.Object

org.deltava.taskman.TaskScheduler

All Implemented Interfaces:

Runnable, Thread.UncaughtExceptionHandler

public class TaskScheduler
extends Object
implements Runnable, Thread.UncaughtExceptionHandler

A class to control execution of Scheduled Tasks. This operates much like a Unix-style cron daemon in that it checks whether a task should be executed once every 60 seconds.

Since:

1.0

Version:

11.1

Author:

Luke

Constructor Summary

Constructors

Constructor	Description
TaskScheduler(Collection<Task> tasks)	Initializes the Task scheduler with a group of Tasks.

Method Summary

Modifier and Type	Method	Description
void	addTask(Task t)	Schedules a Task for execution.
Task	getTask(String id)	Retrieves a Task for manual execution.
Collection<TaskInfo>	getTaskInfo()	Returns the current state of the Task Schedulder.
final void	run()
void	setLastRunTime(TaskLastRun lr)	Updates the last execution time and duration of a Scheduled Task.
String	toString()
void	uncaughtException(Thread t, Throwable e)

Methods inherited from class java.lang.Object

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

Constructor Details

TaskScheduler

public TaskScheduler(Collection<Task> tasks)

Initializes the Task scheduler with a group of Tasks.

Parameters:

tasks - a Collection of Tasks

Method Details

toString

public String toString()

Overrides:

toString in class Object

addTask

public void addTask(Task t)

Schedules a Task for execution.

Parameters:

t - the Task to schedule

getTask

public Task getTask(String id)

Retrieves a Task for manual execution.

Parameters:

id - the Task ID

Returns:

the Task, or null if not found

run

public final void run()

Specified by:

run in interface Runnable

setLastRunTime

public void setLastRunTime(TaskLastRun lr)

Updates the last execution time and duration of a Scheduled Task.

Parameters:

lr - the TaskLastRun bean

getTaskInfo

public Collection<TaskInfo> getTaskInfo()

Returns the current state of the Task Schedulder.

Returns:

a Collection of TaskInfo beans

uncaughtException

public void uncaughtException(Thread t,
 Throwable e)

Specified by:

uncaughtException in interface Thread.UncaughtExceptionHandler