org.syrup.helpers
Class ExecutionMonitor

java.lang.Object
  java.lang.Thread
      org.syrup.helpers.ExecutionMonitor

All Implemented Interfaces:

java.lang.Runnable

public class ExecutionMonitor

extends java.lang.Thread

Implements a simple request/response server during the execution of a Task.

Author:

Robbert van Dalen

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Method Summary

static java.lang.String	checkin(java.lang.String key) Register a Task that will be executed by the current Worker.
static void	checkout(java.lang.String key) Un-registers a Task that has been executed by a Worker (or failed).
static java.util.Hashtable	monitors()
void	run() Main processing method for the ExecutionMonitor object
java.lang.String	url() Returns the URL based on the current Worker's inet address.

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getContextClassLoader, getName, getPriority, getThreadGroup, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setName, setPriority, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Method Detail

checkin

public static java.lang.String checkin(java.lang.String key)
                                throws java.lang.Exception

Register a Task that will be executed by the current Worker. The Task is registered against the current Thread. The same Thread should unregister the same Task.

Parameters:

key - The Task's key to be registered by a Worker (Thread).

Returns:

The URL address of the requesting Worker.

Throws:

java.lang.Exception

checkout

public static void checkout(java.lang.String key)
                     throws java.lang.Exception

Un-registers a Task that has been executed by a Worker (or failed).

Parameters:

key - The Task's key to be unregistered.

Throws:

java.lang.Exception

run

public void run()

Main processing method for the ExecutionMonitor object

url

public java.lang.String url()

Returns the URL based on the current Worker's inet address.

monitors

public static java.util.Hashtable monitors()