ai.grakn.engine.backgroundtasks.distributed

Class ClusterManager

java.lang.Object

org.apache.curator.framework.recipes.leader.LeaderSelectorListenerAdapter

ai.grakn.engine.backgroundtasks.distributed.ClusterManager

All Implemented Interfaces:

org.apache.curator.framework.recipes.leader.LeaderSelectorListener, org.apache.curator.framework.state.ConnectionStateListener

public class ClusterManager
extends org.apache.curator.framework.recipes.leader.LeaderSelectorListenerAdapter

Scheduler will be constantly running on the "Leader" machine. The "takeLeadership" function in this class will be called if it is needed to take over.

Method Summary

Modifier and Type	Method and Description
static ClusterManager	getInstance()
Scheduler	getScheduler() Get the scheduler object
void	start()
void	stop()
void	takeLeadership(org.apache.curator.framework.CuratorFramework client) When you take over leadership start a new Scheduler instance and wait for it to complete.

Methods inherited from class org.apache.curator.framework.recipes.leader.LeaderSelectorListenerAdapter

stateChanged

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static ClusterManager getInstance()

start

public void start()

stop

public void stop()

takeLeadership

public void takeLeadership(org.apache.curator.framework.CuratorFramework client)
                    throws Exception

When you take over leadership start a new Scheduler instance and wait for it to complete.

Throws:

Exception

getScheduler

public Scheduler getScheduler()

Get the scheduler object

Returns:

scheduler