bftsmart.demo.microbenchmarks

Class ThroughputLatencyServer

java.lang.Object

bftsmart.demo.microbenchmarks.ThroughputLatencyServer

All Implemented Interfaces:

Executable, Recoverable, SingleExecutable

public final class ThroughputLatencyServer
extends java.lang.Object
implements SingleExecutable, Recoverable

Simple server that just acknowledge the reception of a request.

Constructor Summary

Constructors

Constructor and Description
ThroughputLatencyServer(int id, int interval, int replySize, int stateSize, boolean context)

Method Summary

Methods

Modifier and Type	Method and Description
byte[]	execute(byte[] command, MessageContext msgCtx)
byte[]	executeOrdered(byte[] command, MessageContext msgCtx) Method called to execute a request totally ordered.
byte[]	executeUnordered(byte[] command, MessageContext msgCtx) Method called to execute a request totally ordered.
byte[]	getState()
ApplicationState	getState(int eid, boolean sendState) This method should return a representation of the application state
StateManager	getStateManager() Recoverers implementing this interface will have to chose among different options of state managers like DurableStateManager or StandardStateManager.
static void	main(java.lang.String[] args)
void	setReplicaContext(ReplicaContext replicaContext)
int	setState(ApplicationState state) Sets the state to the representation obtained in the state transfer protocol
void	setState(byte[] state)

Methods inherited from class java.lang.Object

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

Constructor Detail

ThroughputLatencyServer

public ThroughputLatencyServer(int id,
                       int interval,
                       int replySize,
                       int stateSize,
                       boolean context)

Method Detail

setReplicaContext

public void setReplicaContext(ReplicaContext replicaContext)

Specified by:

setReplicaContext in interface Recoverable

executeOrdered

public byte[] executeOrdered(byte[] command,
                    MessageContext msgCtx)

Description copied from interface: SingleExecutable

Method called to execute a request totally ordered. The message context contains a lot of information about the request, such as timestamp, nonces and sender. The code for this method MUST use the value of timestamp instead of relying on its own local clock, and nonces instead of trying to generated its own random values. This is important because this values are the same for all replicas, and therefore, ensure the determinism required in a replicated state machine.

Specified by:

executeOrdered in interface SingleExecutable

Parameters:

command - the command issue by the client

msgCtx - information related with the command

Returns:

the reply for the request issued by the client

executeUnordered

public byte[] executeUnordered(byte[] command,
                      MessageContext msgCtx)

Description copied from interface: Executable

Method called to execute a request totally ordered. The message context contains some useful information such as the command sender.

Specified by:

executeUnordered in interface Executable

Parameters:

command - the command issue by the client

msgCtx - information related with the command

Returns:

the reply for the request issued by the client

execute

public byte[] execute(byte[] command,
             MessageContext msgCtx)

main

public static void main(java.lang.String[] args)

getState

public byte[] getState()

setState

public void setState(byte[] state)

getState

public ApplicationState getState(int eid,
                        boolean sendState)

Description copied from interface: Recoverable

This method should return a representation of the application state

Specified by:

getState in interface Recoverable

Parameters:

eid - Execution up to which the application should return an Application state

sendState - true if the replica should send a complete representation of the state instead of only the hash. False otherwise

Returns:

A representation of the application state

setState

public int setState(ApplicationState state)

Description copied from interface: Recoverable

Sets the state to the representation obtained in the state transfer protocol

Specified by:

setState in interface Recoverable

Parameters:

state - State obtained in the state transfer protocol

Returns:

getStateManager

public StateManager getStateManager()

Description copied from interface: Recoverable

Recoverers implementing this interface will have to chose among different options of state managers like DurableStateManager or StandardStateManager. The recoverer class can also define a new strategy to manage the state and return it in this method.

Specified by:

getStateManager in interface Recoverable

Returns:

the implementation of state manager that suplies the strategy defined