edu.umass.cs.nio

Class JSONDelayEmulator

java.lang.Object

edu.umass.cs.nio.JSONDelayEmulator

public class JSONDelayEmulator
extends java.lang.Object

Author:

V. Arun

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	DELAY_STR The JSON key for the delay value.

Constructor Summary

Constructors

Constructor and Description
JSONDelayEmulator()

Method Summary

Modifier and Type	Method and Description
static void	emulateConfigFileDelays(InterfaceDelayEmulator<?> pingNodeConfig, double variation)
static void	emulateDelays() Enables delay emulation at receiver.
protected static long	getEmulatedDelay()
static long	getEmulatedDelay(org.json.JSONObject jsonData) Receiver calls this method to toString delay that is to be emulated, and delays processing the packet by that amount.
static long	getEmulatedDelay(java.lang.String strData)
static boolean	isDelayEmulated()
static void	putEmulatedDelay(java.lang.Object id, org.json.JSONObject jsonData) Sender calls this method to put delay value in the json object before json object is sent.
static void	setBaseDelay(long d)
static void	setVariation(double v)
static void	stop() Stops the underlying timer thread.

Methods inherited from class java.lang.Object

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

Field Detail

DELAY_STR

public static final java.lang.String DELAY_STR

The JSON key for the delay value.

See Also:

Constant Field Values

Constructor Detail

JSONDelayEmulator

public JSONDelayEmulator()

Method Detail

emulateDelays

public static void emulateDelays()

Enables delay emulation at receiver.

emulateConfigFileDelays

public static void emulateConfigFileDelays(InterfaceDelayEmulator<?> pingNodeConfig,
                                           double variation)

Parameters:

pingNodeConfig -

variation -

isDelayEmulated

public static boolean isDelayEmulated()

Returns:

Whether receiver delay emulation is enabled.

stop

public static void stop()

Stops the underlying timer thread.

putEmulatedDelay

public static void putEmulatedDelay(java.lang.Object id,
                                    org.json.JSONObject jsonData)

Sender calls this method to put delay value in the json object before json object is sent.

Parameters:

id -

jsonData -

getEmulatedDelay

public static long getEmulatedDelay(org.json.JSONObject jsonData)

Receiver calls this method to toString delay that is to be emulated, and delays processing the packet by that amount. We put the delay to be emulated inside the json at the sender side because the receiver side does not know which node ID sent the packet, and hence cannot know how much to delay the packet

Parameters:

jsonData -

Returns:

The value of the emulated delay.

getEmulatedDelay

public static long getEmulatedDelay(java.lang.String strData)

Parameters:

strData -

Returns:

Value of emulated delay.

getEmulatedDelay

protected static long getEmulatedDelay()

setBaseDelay

public static void setBaseDelay(long d)

Parameters:

d -

setVariation

public static void setVariation(double v)

Parameters:

v -