MUM.data
Class IClientStateSynchronizer

java.lang.Object
  MUM.data.IClientStateSynchronizer

All Implemented Interfaces:

java.io.Serializable

public class IClientStateSynchronizer

extends java.lang.Object

implements java.io.Serializable

This class implements a synchronizer to synchronize the ubiQoS client operations.

See Also:

Serialized Form

Field Summary

static java.lang.String	CLIENT_DESTROYED In this state the needed software has been downloaded
static java.lang.String	NOT_CONSISTENT In this state the client is in a not consistent state
static java.lang.String	PLAYING In this state the UbiQoS client is playing
static java.lang.String	STOPPED In this state the UbiQoS client is stopped
static java.lang.String	SW_DOWNLOADED In this state the needed software has been downloaded
static java.lang.String	SYSTEM_INITIALIZED In this state the distributed system has been initialized
static java.lang.String	SYSTEM_RECONFIGURED In this state the system has been reconfigured
static java.lang.String	WAITING_NEW_REQUESTS In this state the client is waiting new requests

Constructor Summary

IClientStateSynchronizer(java.io.PrintStream out)

Method Summary

java.lang.String	getCurrentState()
java.lang.String	getNextState()
boolean	isWaitingForNextState() Checks if there is anyone bloked because we are waiting for a change of the state
void	notifyState(java.lang.String changeToState) This method changes the current state and notifies this to all the other threads waiting for a state change
void	waitState(java.lang.String targetState) This method stops the thread until the target state (the parameter) is reached

Methods inherited from class java.lang.Object

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

Field Detail

NOT_CONSISTENT

public static final java.lang.String NOT_CONSISTENT

In this state the client is in a not consistent state

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Constant Field Values

SW_DOWNLOADED

public static final java.lang.String SW_DOWNLOADED

In this state the needed software has been downloaded

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Constant Field Values

WAITING_NEW_REQUESTS

public static final java.lang.String WAITING_NEW_REQUESTS

In this state the client is waiting new requests

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Constant Field Values

SYSTEM_INITIALIZED

public static final java.lang.String SYSTEM_INITIALIZED

In this state the distributed system has been initialized

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Constant Field Values

PLAYING

public static final java.lang.String PLAYING

In this state the UbiQoS client is playing

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Constant Field Values

STOPPED

public static final java.lang.String STOPPED

In this state the UbiQoS client is stopped

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Constant Field Values

SYSTEM_RECONFIGURED

public static final java.lang.String SYSTEM_RECONFIGURED

In this state the system has been reconfigured

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Constant Field Values

CLIENT_DESTROYED

public static final java.lang.String CLIENT_DESTROYED

In this state the needed software has been downloaded

See Also:

Constant Field Values

Constructor Detail

IClientStateSynchronizer

public IClientStateSynchronizer(java.io.PrintStream out)

Method Detail

waitState

public void waitState(java.lang.String targetState)

This method stops the thread until the target state (the parameter) is reached

Parameters:

targetState - the state we are waiting for

notifyState

public void notifyState(java.lang.String changeToState)

This method changes the current state and notifies this to all the other threads waiting for a state change

getCurrentState

public java.lang.String getCurrentState()

getNextState

public java.lang.String getNextState()

isWaitingForNextState

public boolean isWaitingForNextState()

Checks if there is anyone bloked because we are waiting for a change of the state