lbg
Class LightweightBarteringGrid

java.lang.Object
  lbg.LightweightBarteringGrid

public abstract class LightweightBarteringGrid
extends java.lang.Object

The Lightweight Bartering Grid middleware allows Peers to gridify their computational and storage Resources, and barter them globally following various negotiation/accounting strategies.

Author:

Cyril Briquet

Field Summary

static java.lang.String

VERSION Lightweight Bartering Grid current version.

Constructor Summary

LightweightBarteringGrid()

Method Summary

static java.lang.String[]	getJarDependencies()
static VirtualizationLevel	getMode() Returns current operating mode.
static Scenario	getScenario() Returns current Scenario (legal in SIM mode only).
static long	getTime() Returns current time: SIM mode - in seconds since the beginning of the simulation LIVE mode - in seconds since the epoch
static void	handleGridException(GridException e)
static void	setMode(VirtualizationLevel mode) Sets current operating mode (callable only once).
static void	setSimulator(Simulator sim, Scenario sc) Sets current Simulator and Scenario (legal in SIM mode only).
static long	setTime(long time) Sets current time to target time (legal in SIM mode only).
static long	shiftTime(long timeshift) Shifts current time forward by target amount (legal in SIM mode only).
static java.lang.String	welcome()

Methods inherited from class java.lang.Object

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

Field Detail

VERSION

public static final java.lang.String VERSION

Lightweight Bartering Grid current version.

See Also:

Constant Field Values

Constructor Detail

LightweightBarteringGrid

public LightweightBarteringGrid()

Method Detail

welcome

public static java.lang.String welcome()

setMode

public static void setMode(VirtualizationLevel mode)
                    throws GridException

Sets current operating mode (callable only once).

Parameters:

mode - target operating mode

Throws:

GridException - if target mode is illegal, or a mode has already been set

getMode

public static VirtualizationLevel getMode()

Returns current operating mode.

Returns:

current operating mode

setSimulator

public static void setSimulator(Simulator sim,
                                Scenario sc)
                         throws GridException

Sets current Simulator and Scenario (legal in SIM mode only).

Parameters:

sim - target Simulator

sc - target Scenario

Throws:

GridException - if target Scenario is illegal, or current mode is illegal

getScenario

public static Scenario getScenario()
                            throws GridException

Returns current Scenario (legal in SIM mode only).

Throws:

GridException - if current mode is illegal

getTime

public static long getTime()
                    throws GridException

Returns current time:

• SIM mode - in seconds since the beginning of the simulation
• LIVE mode - in seconds since the epoch

Returns:

current time (in seconds)

Throws:

GridException - if time status is corrupted

setTime

public static long setTime(long time)
                    throws GridException

Sets current time to target time (legal in SIM mode only).

Parameters:

time - target time

Returns:

current time (in seconds)

Throws:

GridException - if target time is illegal, current mode is illegal, or time status is corrupted

shiftTime

public static long shiftTime(long timeshift)
                      throws GridException

Shifts current time forward by target amount (legal in SIM mode only).

Parameters:

timeshift - target time shift

Returns:

current time (in seconds)

Throws:

GridException - if target time shift is illegal, current mode is illegal, or time status is corrupted

handleGridException

public static void handleGridException(GridException e)

getJarDependencies

public static java.lang.String[] getJarDependencies()