org.onosproject.store.primitives.resources.impl

Class AtomixLeaderElectorState

java.lang.Object

io.atomix.copycat.server.StateMachine

io.atomix.resource.ResourceStateMachine

org.onosproject.store.primitives.resources.impl.AtomixLeaderElectorState

All Implemented Interfaces:

io.atomix.copycat.server.session.SessionListener, io.atomix.copycat.server.Snapshottable, AutoCloseable

public class AtomixLeaderElectorState
extends io.atomix.resource.ResourceStateMachine
implements io.atomix.copycat.server.session.SessionListener, io.atomix.copycat.server.Snapshottable

State machine for AtomixLeaderElector resource.

Field Summary

Fields inherited from class io.atomix.resource.ResourceStateMachine

config

Fields inherited from class io.atomix.copycat.server.StateMachine

clock, context, executor, sessions

Constructor Summary

Constructors

Constructor and Description
AtomixLeaderElectorState(Properties properties)

Method Summary

Modifier and Type	Method and Description
Map<String,Leadership>	allLeaderships(io.atomix.copycat.server.Commit<? extends AtomixLeaderElectorCommands.GetAllLeaderships> commit) Applies an AtomixLeaderElectorCommands.GetAllLeaderships commit.
boolean	anoint(io.atomix.copycat.server.Commit<? extends AtomixLeaderElectorCommands.Anoint> commit) Applies an AtomixLeaderElectorCommands.Anoint commit.
void	close(io.atomix.copycat.server.session.ServerSession session)
protected void	configure(io.atomix.copycat.server.StateMachineExecutor executor)
void	delete()
Set<String>	electedTopics(io.atomix.copycat.server.Commit<? extends AtomixLeaderElectorCommands.GetElectedTopics> commit) Applies an AtomixLeaderElectorCommands.GetElectedTopics commit.
void	evict(io.atomix.copycat.server.Commit<? extends AtomixLeaderElectorCommands.Evict> commit) Applies an AtomixLeaderElectorCommands.Evict commit.
void	expire(io.atomix.copycat.server.session.ServerSession session)
void	install(io.atomix.copycat.server.storage.snapshot.SnapshotReader reader)
Leadership	leadership(io.atomix.copycat.server.Commit<? extends AtomixLeaderElectorCommands.GetLeadership> commit) Applies an AtomixLeaderElectorCommands.GetLeadership commit.
void	listen(io.atomix.copycat.server.Commit<? extends AtomixLeaderElectorCommands.Listen> commit) Applies listen commits.
boolean	promote(io.atomix.copycat.server.Commit<? extends AtomixLeaderElectorCommands.Promote> commit) Applies an AtomixLeaderElectorCommands.Promote commit.
void	register(io.atomix.copycat.server.session.ServerSession session)
Leadership	run(io.atomix.copycat.server.Commit<? extends AtomixLeaderElectorCommands.Run> commit) Applies an AtomixLeaderElectorCommands.Run commit.
void	snapshot(io.atomix.copycat.server.storage.snapshot.SnapshotWriter writer)
void	unlisten(io.atomix.copycat.server.Commit<? extends AtomixLeaderElectorCommands.Unlisten> commit) Applies unlisten commits.
void	unregister(io.atomix.copycat.server.session.ServerSession session)
void	withdraw(io.atomix.copycat.server.Commit<? extends AtomixLeaderElectorCommands.Withdraw> commit) Applies an AtomixLeaderElectorCommands.Withdraw commit.

Methods inherited from class io.atomix.resource.ResourceStateMachine

init, notify

Methods inherited from class io.atomix.copycat.server.StateMachine

close

Methods inherited from class java.lang.Object

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

Constructor Detail

AtomixLeaderElectorState

public AtomixLeaderElectorState(Properties properties)

Method Detail

configure

protected void configure(io.atomix.copycat.server.StateMachineExecutor executor)

Overrides:

configure in class io.atomix.copycat.server.StateMachine

delete

public void delete()

Overrides:

delete in class io.atomix.resource.ResourceStateMachine

listen

public void listen(io.atomix.copycat.server.Commit<? extends AtomixLeaderElectorCommands.Listen> commit)

Applies listen commits.

Parameters:

commit - listen commit

unlisten

public void unlisten(io.atomix.copycat.server.Commit<? extends AtomixLeaderElectorCommands.Unlisten> commit)

Applies unlisten commits.

Parameters:

commit - unlisten commit

run

public Leadership run(io.atomix.copycat.server.Commit<? extends AtomixLeaderElectorCommands.Run> commit)

Applies an AtomixLeaderElectorCommands.Run commit.

Parameters:

commit - commit entry

Returns:

topic leader. If no previous leader existed this is the node that just entered the race.

withdraw

public void withdraw(io.atomix.copycat.server.Commit<? extends AtomixLeaderElectorCommands.Withdraw> commit)

Applies an AtomixLeaderElectorCommands.Withdraw commit.

Parameters:

commit - withdraw commit

anoint

public boolean anoint(io.atomix.copycat.server.Commit<? extends AtomixLeaderElectorCommands.Anoint> commit)

Applies an AtomixLeaderElectorCommands.Anoint commit.

Parameters:

commit - anoint commit

Returns:

true if changes were made and the transfer occurred; false if it did not.

promote

public boolean promote(io.atomix.copycat.server.Commit<? extends AtomixLeaderElectorCommands.Promote> commit)

Applies an AtomixLeaderElectorCommands.Promote commit.

Parameters:

commit - promote commit

Returns:

true if changes desired end state is achieved.

evict

public void evict(io.atomix.copycat.server.Commit<? extends AtomixLeaderElectorCommands.Evict> commit)

Applies an AtomixLeaderElectorCommands.Evict commit.

Parameters:

commit - evict commit

leadership

public Leadership leadership(io.atomix.copycat.server.Commit<? extends AtomixLeaderElectorCommands.GetLeadership> commit)

Applies an AtomixLeaderElectorCommands.GetLeadership commit.

Parameters:

commit - GetLeadership commit

Returns:

leader

electedTopics

public Set<String> electedTopics(io.atomix.copycat.server.Commit<? extends AtomixLeaderElectorCommands.GetElectedTopics> commit)

Applies an AtomixLeaderElectorCommands.GetElectedTopics commit.

Parameters:

commit - commit entry

Returns:

set of topics for which the node is the leader

allLeaderships

public Map<String,Leadership> allLeaderships(io.atomix.copycat.server.Commit<? extends AtomixLeaderElectorCommands.GetAllLeaderships> commit)

Applies an AtomixLeaderElectorCommands.GetAllLeaderships commit.

Parameters:

commit - GetAllLeaderships commit

Returns:

topic to leader mapping

register

public void register(io.atomix.copycat.server.session.ServerSession session)

Specified by:

register in interface io.atomix.copycat.server.session.SessionListener

Overrides:

register in class io.atomix.resource.ResourceStateMachine

unregister

public void unregister(io.atomix.copycat.server.session.ServerSession session)

Specified by:

unregister in interface io.atomix.copycat.server.session.SessionListener

Overrides:

unregister in class io.atomix.resource.ResourceStateMachine

expire

public void expire(io.atomix.copycat.server.session.ServerSession session)

Specified by:

expire in interface io.atomix.copycat.server.session.SessionListener

Overrides:

expire in class io.atomix.resource.ResourceStateMachine

close

public void close(io.atomix.copycat.server.session.ServerSession session)

Specified by:

close in interface io.atomix.copycat.server.session.SessionListener

Overrides:

close in class io.atomix.resource.ResourceStateMachine

snapshot

public void snapshot(io.atomix.copycat.server.storage.snapshot.SnapshotWriter writer)

Specified by:

snapshot in interface io.atomix.copycat.server.Snapshottable

install

public void install(io.atomix.copycat.server.storage.snapshot.SnapshotReader reader)

Specified by:

install in interface io.atomix.copycat.server.Snapshottable