org.gcube.vremanagement.resourcemanager.impl.brokerage
Interface Broker

All Known Implementing Classes:

InternalBroker, ServiceBroker

public interface Broker

Models the expected behavior of a Broker. A Broker is an entity that can create Deployment Plans for a set of ScopedDeployedSoftwares to be deployed

Author:

Manuele Simi (ISTI-CNR)

Method Summary

void	initialize(ScopeState scopeState) Initializes the Broker instance
void	makePlan(Session session, Set<ScopedDeployedSoftware> services, String[] suggestedGHNs) Creates a deployment plan for the given services
void	sendFeedback(Session session) Sends feedback to the broker about the execution of the plan for the given session

Method Detail

initialize

void initialize(ScopeState scopeState)
                throws Exception

Initializes the Broker instance

Parameters:

scopeState - the state where the broker will act

Throws:

Exception - if the initialization fails (depends on the broker's nature)

makePlan

void makePlan(Session session,
              Set<ScopedDeployedSoftware> services,
              String[] suggestedGHNs)
              throws Exception

Creates a deployment plan for the given services

Parameters:

session - the current active session on the state

services - the services to deploy

suggestedGHNs - the (eventually) GHNs suggested for the deployment, if specified, only these nodes will be used by the planner

Throws:

Exception - if the preparation of the plan fails

sendFeedback

void sendFeedback(Session session)
                  throws Exception

Sends feedback to the broker about the execution of the plan for the given session

Parameters:

session - the current active session on the state

Throws:

Exception - if the broker is not able to manage the feedback