zeta
Class WorkloadScheduler

java.lang.Object
  |
  +--zeta.WorkloadScheduler

public class WorkloadScheduler

extends java.lang.Object

Controls the computation in specified timeframes.

Field Summary

private int[][]	activeAt
private boolean	alwaysActive
private int	MAX_DAY

Constructor Summary

WorkloadScheduler(java.lang.String activeAt)
Constructs the environment for the scheduler.

Method Summary

private static void	addTimeframe(java.util.List timeframes, int startHour, int startMinute, int stopHour, int stopMinute)
private static boolean	checkTimeframe(int startHour, int startMinute, int stopHour, int stopMinute)
long	getTimeMillisToNextTimeframe() Returns in milliseconds how long nothing will happen for the scheduler.
boolean	isActive() Checks if the computation can be active right now.
boolean	isAlwaysActive() Checks if the computation can be always active.
private static int[]	timeframe(java.lang.String activeAt, int pos, java.lang.String dayOfWeek)

Methods inherited from class java.lang.Object

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

Field Detail

alwaysActive

private boolean alwaysActive

MAX_DAY

private final int MAX_DAY

activeAt

private int[][] activeAt

Constructor Detail

WorkloadScheduler

public WorkloadScheduler(java.lang.String activeAt)

Constructs the environment for the scheduler. The timeframes can be defined by the following format: {:-:}* where : the name of the day, i.e. (Mo, Tu, We, Th, Fr, Sa, Su) : controls what hour the computation will start, and is specified in the 24 hour clock, values must be between 0 and 23 (0 is midnight) : controls what minute of the hour the computation will start, value must be between 0 and 59 : controls what hour the computation will start, and is specified in the 24 hour clock, values must be between 0 and 23 (0 is midnight) : controls what minute of the hour the computation will stop, value must be between 0 and 59 Example: Mo08:00-12:00Mo13:00-20:00Tu00:00-00:00We00:00-00:00Th00:00-00:00Fr00:00-00:00

Parameters:

activeAt - the timeframes when the client can activate the computation

Method Detail

isAlwaysActive

public boolean isAlwaysActive()

Checks if the computation can be always active.

Returns:

true if the computation can be always active.

isActive

public boolean isActive()

Checks if the computation can be active right now.

Returns:

true if the computation can be active right now.

getTimeMillisToNextTimeframe

public long getTimeMillisToNextTimeframe()

Returns in milliseconds how long nothing will happen for the scheduler.

Returns:

in milliseconds how long nothing will happen for the scheduler.

checkTimeframe

private static boolean checkTimeframe(int startHour,
                                      int startMinute,
                                      int stopHour,
                                      int stopMinute)

addTimeframe

private static void addTimeframe(java.util.List timeframes,
                                 int startHour,
                                 int startMinute,
                                 int stopHour,
                                 int stopMinute)

timeframe

private static int[] timeframe(java.lang.String activeAt,
                               int pos,
                               java.lang.String dayOfWeek)