org.opends.server.backends.task
Class TaskThread

java.lang.Object
  java.lang.Thread
      org.opends.server.api.DirectoryThread
          org.opends.server.backends.task.TaskThread

All Implemented Interfaces:

java.lang.Runnable

public class TaskThread
extends DirectoryThread

This class defines a thread that will be used to execute a scheduled task within the server and provide appropriate notification that the task is complete.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

TaskThread(TaskScheduler taskScheduler, int threadID)
Creates a new task thread with the provided information.

Method Summary

java.util.Map<java.lang.String,java.lang.String>	getDebugProperties() Retrieves any relevent debug information with which this tread is associated so they can be included in debug messages.
Task	getTask() Retrieves the task currently being processed by this thread, if it is active.
void	interruptTask(TaskState interruptState, Message interruptReason, boolean exitThread) Attempts to interrupt processing on the task in progress.
void	run() Operates in a loop, sleeping until there is no work to do, then processing the task and returning to the scheduler for more work.
void	setTask(Task task) Provides a new task for processing by this thread.

Methods inherited from class org.opends.server.api.DirectoryThread

getAssociatedTask, getCreationStackTrace, getParentThread, setAssociatedTask

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Constructor Detail

TaskThread

public TaskThread(TaskScheduler taskScheduler,
                  int threadID)

Creates a new task thread with the provided information.

Parameters:

taskScheduler - The reference to the task scheduler with which this thread is associated.

threadID - The ID assigned to this task thread.

Method Detail

getTask

public Task getTask()

Retrieves the task currently being processed by this thread, if it is active.

Returns:

The task currently being processed by this thread, or null if it is not processing any task.

setTask

public void setTask(Task task)

Provides a new task for processing by this thread. This does not do any check to ensure that no task is already in process.

Parameters:

task - The task to be processed.

interruptTask

public void interruptTask(TaskState interruptState,
                          Message interruptReason,
                          boolean exitThread)

Attempts to interrupt processing on the task in progress.

Parameters:

interruptState - The state to use for the task if it is successfully interrupted.

interruptReason - The human-readable reason that the task is to be interrupted.

exitThread - Indicates whether this thread should exit when processing on the active task has completed.

run

public void run()

Operates in a loop, sleeping until there is no work to do, then processing the task and returning to the scheduler for more work.

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread

getDebugProperties

public java.util.Map<java.lang.String,java.lang.String> getDebugProperties()

Retrieves any relevent debug information with which this tread is associated so they can be included in debug messages.

Overrides:

getDebugProperties in class DirectoryThread

Returns:

debug information about this thread as a string.