//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldGracefullyHandleEmptyDiscoveryHeader()
public virtual void ShouldGracefullyHandleEmptyDiscoveryHeader()
{
// Given
InstanceId me = new InstanceId(1);
InstanceId joining = new InstanceId(2);
CommonContextState commonContextState = mock(typeof(CommonContextState), RETURNS_MOCKS);
Timeouts timeouts = mock(typeof(Timeouts));
Executor executor = mock(typeof(Executor));
HeartbeatContext heartbeatContext = mock(typeof(HeartbeatContext));
ClusterContext context = new ClusterContextImpl(me, commonContextState, NullLogProvider.Instance, timeouts, executor, mock(typeof(ObjectOutputStreamFactory)), mock(typeof(ObjectInputStreamFactory)), mock(typeof(LearnerContext)), heartbeatContext, mock(typeof(Config)));
ClusterMessage.ConfigurationRequestState request = mock(typeof(ClusterMessage.ConfigurationRequestState));
when(request.JoiningId).thenReturn(joining);
// When
// Instance 2 contacts us with a request but it is empty
context.AddContactingInstance(request, "");
// Then
// The discovery header we generate should still contain that instance
assertEquals("2", context.GenerateDiscoveryHeader());
}
/*
* This test ensures that an instance that cleanly leaves the cluster but is not the elector has no effect on
* elector id and last version
*/
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void nonElectorLeavingTheClusterMustNotAffectElectorInformation()
public virtual void NonElectorLeavingTheClusterMustNotAffectElectorInformation()
{
// Given
InstanceId me = new InstanceId(1);
InstanceId elector = new InstanceId(2);
InstanceId other = new InstanceId(3);
ClusterConfiguration clusterConfiguration = mock(typeof(ClusterConfiguration));
when(clusterConfiguration.GetUriForId(other)).thenReturn(URI.create("cluster://instance2"));
CommonContextState commonContextState = mock(typeof(CommonContextState));
when(commonContextState.Configuration()).thenReturn(clusterConfiguration);
ClusterContext context = new ClusterContextImpl(me, commonContextState, NullLogProvider.Instance, mock(typeof(Timeouts)), mock(typeof(Executor)), mock(typeof(ObjectOutputStreamFactory)), mock(typeof(ObjectInputStreamFactory)), mock(typeof(LearnerContext)), mock(typeof(HeartbeatContext)), mock(typeof(Config)));
// This means instance 2 was the elector at version 8
context.LastElector = elector;
context.LastElectorVersion = 8;
// When
context.Left(other);
// Then
assertEquals(context.LastElector, elector);
assertEquals(context.LastElectorVersion, 8);
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldUpdateDiscoveryHeaderWithContactingInstances()
public virtual void ShouldUpdateDiscoveryHeaderWithContactingInstances()
{
// Given
InstanceId me = new InstanceId(1);
InstanceId joiningOne = new InstanceId(2);
InstanceId joiningTwo = new InstanceId(3);
CommonContextState commonContextState = mock(typeof(CommonContextState), RETURNS_MOCKS);
Timeouts timeouts = mock(typeof(Timeouts));
Executor executor = mock(typeof(Executor));
HeartbeatContext heartbeatContext = mock(typeof(HeartbeatContext));
ClusterContext context = new ClusterContextImpl(me, commonContextState, NullLogProvider.Instance, timeouts, executor, mock(typeof(ObjectOutputStreamFactory)), mock(typeof(ObjectInputStreamFactory)), mock(typeof(LearnerContext)), heartbeatContext, mock(typeof(Config)));
ClusterMessage.ConfigurationRequestState requestOne = mock(typeof(ClusterMessage.ConfigurationRequestState));
when(requestOne.JoiningId).thenReturn(joiningOne);
ClusterMessage.ConfigurationRequestState requestTwo = mock(typeof(ClusterMessage.ConfigurationRequestState));
when(requestTwo.JoiningId).thenReturn(joiningTwo);
// When
// Instance 2 contacts us twice and Instance 3 contacts us once
context.AddContactingInstance(requestOne, "4, 5"); // discovery headers are random here
context.AddContactingInstance(requestOne, "4, 5");
context.AddContactingInstance(requestTwo, "2, 5");
// Then
// The discovery header we generate should still contain one copy of each instance
assertEquals("2,3", context.GenerateDiscoveryHeader());
}
/*
* This test ensures that an instance that is marked as failed has its elector version reset. This means that
* the instance, once it comes back, will still be able to do elections even if it lost state
*/
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void nonElectorFailingMustNotCauseElectorVersionToBeReset()
public virtual void NonElectorFailingMustNotCauseElectorVersionToBeReset()
{
// Given
InstanceId me = new InstanceId(1);
InstanceId elector = new InstanceId(2);
CommonContextState commonContextState = mock(typeof(CommonContextState), RETURNS_MOCKS);
Timeouts timeouts = mock(typeof(Timeouts));
Executor executor = mock(typeof(Executor));
HeartbeatContext heartbeatContext = mock(typeof(HeartbeatContext));
ArgumentCaptor <HeartbeatListener> listenerCaptor = ArgumentCaptor.forClass(typeof(HeartbeatListener));
ClusterContext context = new ClusterContextImpl(me, commonContextState, NullLogProvider.Instance, timeouts, executor, mock(typeof(ObjectOutputStreamFactory)), mock(typeof(ObjectInputStreamFactory)), mock(typeof(LearnerContext)), heartbeatContext, mock(typeof(Config)));
verify(heartbeatContext).addHeartbeatListener(listenerCaptor.capture());
HeartbeatListener theListener = listenerCaptor.Value;
// This means instance 2 was the elector at version 8
context.LastElector = elector;
context.LastElectorVersion = 8;
// When
theListener.Failed(new InstanceId(3));
// Then
assertEquals(context.LastElector, elector);
assertEquals(context.LastElectorVersion, 8);
}
private MultiPaxosContext(ProposerContextImpl proposerContext, AcceptorContextImpl acceptorContext, LearnerContextImpl learnerContext, HeartbeatContextImpl heartbeatContext, ElectionContextImpl electionContext, AtomicBroadcastContextImpl atomicBroadcastContext, CommonContextState commonState, PaxosInstanceStore paxosInstances, ClusterContextImpl clusterContext)
{
this._clusterContext = clusterContext;
this._proposerContext = proposerContext;
this._acceptorContext = acceptorContext;
this._learnerContext = learnerContext;
this._heartbeatContext = heartbeatContext;
this._electionContext = electionContext;
this._atomicBroadcastContext = atomicBroadcastContext;
this._commonState = commonState;
this._paxosInstances = paxosInstances;
}
public MultiPaxosContext(InstanceId me, IEnumerable <ElectionRole> roles, ClusterConfiguration configuration, Executor executor, LogProvider logging, ObjectInputStreamFactory objectInputStreamFactory, ObjectOutputStreamFactory objectOutputStreamFactory, AcceptorInstanceStore instanceStore, Timeouts timeouts, ElectionCredentialsProvider electionCredentialsProvider, Config config)
{
_commonState = new CommonContextState(configuration, config.Get(ClusterSettings.max_acceptors));
_paxosInstances = new PaxosInstanceStore();
_heartbeatContext = new HeartbeatContextImpl(me, _commonState, logging, timeouts, executor);
_learnerContext = new LearnerContextImpl(me, _commonState, logging, timeouts, _paxosInstances, instanceStore, objectInputStreamFactory, objectOutputStreamFactory, _heartbeatContext);
_clusterContext = new ClusterContextImpl(me, _commonState, logging, timeouts, executor, objectOutputStreamFactory, objectInputStreamFactory, _learnerContext, _heartbeatContext, config);
_electionContext = new ElectionContextImpl(me, _commonState, logging, timeouts, roles, _clusterContext, _heartbeatContext, electionCredentialsProvider);
_proposerContext = new ProposerContextImpl(me, _commonState, logging, timeouts, _paxosInstances, _heartbeatContext);
_acceptorContext = new AcceptorContextImpl(me, _commonState, logging, timeouts, instanceStore);
_atomicBroadcastContext = new AtomicBroadcastContextImpl(me, _commonState, logging, timeouts, executor, _heartbeatContext);
_heartbeatContext.setCircularDependencies(_clusterContext, _learnerContext);
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldKeepTrackOfInstancesWeHaveContacted()
public virtual void ShouldKeepTrackOfInstancesWeHaveContacted()
{
// Given
InstanceId me = new InstanceId(1);
InstanceId joiningOne = new InstanceId(2);
InstanceId joiningTwo = new InstanceId(3);
CommonContextState commonContextState = mock(typeof(CommonContextState), RETURNS_MOCKS);
Timeouts timeouts = mock(typeof(Timeouts));
Executor executor = mock(typeof(Executor));
HeartbeatContext heartbeatContext = mock(typeof(HeartbeatContext));
ClusterContext context = new ClusterContextImpl(me, commonContextState, NullLogProvider.Instance, timeouts, executor, mock(typeof(ObjectOutputStreamFactory)), mock(typeof(ObjectInputStreamFactory)), mock(typeof(LearnerContext)), heartbeatContext, mock(typeof(Config)));
ClusterMessage.ConfigurationRequestState requestOne = mock(typeof(ClusterMessage.ConfigurationRequestState));
when(requestOne.JoiningId).thenReturn(joiningOne);
ClusterMessage.ConfigurationRequestState requestTwo = mock(typeof(ClusterMessage.ConfigurationRequestState));
when(requestTwo.JoiningId).thenReturn(joiningTwo);
// When
// Instance two contacts us but we are not in the header
context.AddContactingInstance(requestOne, "4, 5");
// Then we haven't contacted instance 2
assertFalse(context.HaveWeContactedInstance(requestOne));
// When
// Instance 2 reports that we have contacted it after all
context.AddContactingInstance(requestOne, "4, 5, 1");
// Then
assertTrue(context.HaveWeContactedInstance(requestOne));
// When
// Instance 3 says we have contacted it
context.AddContactingInstance(requestTwo, "2, 5, 1");
// Then
assertTrue(context.HaveWeContactedInstance(requestTwo));
// When
// For some reason we are not in the header of 3 in subsequent responses (a delayed one, for example)
context.AddContactingInstance(requestTwo, "2, 5");
// Then
// The state should still keep the fact we've contacted it already
assertTrue(context.HaveWeContactedInstance(requestTwo));
}
/// <summary>
/// Create a state snapshot. The snapshot will not duplicate services, and expects the caller to duplicate
/// <seealso cref="AcceptorInstanceStore"/>, since that is externally provided.
/// </summary>
public virtual MultiPaxosContext Snapshot(LogProvider logging, Timeouts timeouts, Executor executor, AcceptorInstanceStore instanceStore, ObjectInputStreamFactory objectInputStreamFactory, ObjectOutputStreamFactory objectOutputStreamFactory, ElectionCredentialsProvider electionCredentialsProvider)
{
CommonContextState commonStateSnapshot = _commonState.snapshot(logging.GetLog(typeof(ClusterConfiguration)));
PaxosInstanceStore paxosInstancesSnapshot = _paxosInstances.snapshot();
HeartbeatContextImpl snapshotHeartbeatContext = _heartbeatContext.snapshot(commonStateSnapshot, logging, timeouts, executor);
LearnerContextImpl snapshotLearnerContext = _learnerContext.snapshot(commonStateSnapshot, logging, timeouts, paxosInstancesSnapshot, instanceStore, objectInputStreamFactory, objectOutputStreamFactory, snapshotHeartbeatContext);
ClusterContextImpl snapshotClusterContext = _clusterContext.snapshot(commonStateSnapshot, logging, timeouts, executor, objectOutputStreamFactory, objectInputStreamFactory, snapshotLearnerContext, snapshotHeartbeatContext);
ElectionContextImpl snapshotElectionContext = _electionContext.snapshot(commonStateSnapshot, logging, timeouts, snapshotClusterContext, snapshotHeartbeatContext, electionCredentialsProvider);
ProposerContextImpl snapshotProposerContext = _proposerContext.snapshot(commonStateSnapshot, logging, timeouts, paxosInstancesSnapshot, _heartbeatContext);
AcceptorContextImpl snapshotAcceptorContext = _acceptorContext.snapshot(commonStateSnapshot, logging, timeouts, instanceStore);
AtomicBroadcastContextImpl snapshotAtomicBroadcastContext = _atomicBroadcastContext.snapshot(commonStateSnapshot, logging, timeouts, executor, snapshotHeartbeatContext);
snapshotHeartbeatContext.SetCircularDependencies(snapshotClusterContext, snapshotLearnerContext);
return(new MultiPaxosContext(snapshotProposerContext, snapshotAcceptorContext, snapshotLearnerContext, snapshotHeartbeatContext, snapshotElectionContext, snapshotAtomicBroadcastContext, commonStateSnapshot, paxosInstancesSnapshot, snapshotClusterContext));
}
/*
* This test ensures that an instance that enters the cluster has its elector version reset. That means that
* if it was the elector before its version is now reset so results can be applied. This and the previous tests
* actually perform the same things at different events, one covering for the other.
*/
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void instanceEnteringTheClusterMustBeRemovedAsElector()
public virtual void InstanceEnteringTheClusterMustBeRemovedAsElector()
{
// Given
InstanceId me = new InstanceId(1);
InstanceId elector = new InstanceId(2);
CommonContextState commonContextState = mock(typeof(CommonContextState), RETURNS_MOCKS);
ClusterContext context = new ClusterContextImpl(me, commonContextState, NullLogProvider.Instance, mock(typeof(Timeouts)), mock(typeof(Executor)), mock(typeof(ObjectOutputStreamFactory)), mock(typeof(ObjectInputStreamFactory)), mock(typeof(LearnerContext)), mock(typeof(HeartbeatContext)), mock(typeof(Config)));
// This means instance 2 was the elector at version 8
context.LastElector = elector;
context.LastElectorVersion = 8;
// When
context.Joined(elector, URI.create("cluster://elector"));
// Then
assertEquals(context.LastElector, InstanceId.NONE);
assertEquals(context.LastElectorVersion, -1);
}
public override bool Equals(object o)
{
if (this == o)
{
return(true);
}
if (o == null || this.GetType() != o.GetType())
{
return(false);
}
ClusterContextImpl that = ( ClusterContextImpl )o;
if (_currentlyJoiningInstances != null ?!_currentlyJoiningInstances.Equals(that._currentlyJoiningInstances) : that._currentlyJoiningInstances != null)
{
return(false);
}
//JAVA TO C# CONVERTER WARNING: LINQ 'SequenceEqual' is not always identical to Java AbstractList 'equals':
//ORIGINAL LINE: if (discoveredInstances != null ? !discoveredInstances.equals(that.discoveredInstances) : that.discoveredInstances != null)
if (_discoveredInstances != null ?!_discoveredInstances.SequenceEqual(that._discoveredInstances) : that._discoveredInstances != null)
{
return(false);
}
if (_heartbeatContext != null ?!_heartbeatContext.Equals(that._heartbeatContext) : that._heartbeatContext != null)
{
return(false);
}
if (_joinDeniedConfigurationResponseState != null ?!_joinDeniedConfigurationResponseState.Equals(that._joinDeniedConfigurationResponseState) : that._joinDeniedConfigurationResponseState != null)
{
return(false);
}
if (_joiningInstances != null ?!_joiningInstances.Equals(that._joiningInstances) : that._joiningInstances != null)
{
return(false);
}
return(_learnerContext != null?_learnerContext.Equals(that._learnerContext) : that._learnerContext == null);
}
public virtual ElectionContextImpl Snapshot(CommonContextState commonStateSnapshot, LogProvider logging, Timeouts timeouts, ClusterContextImpl snapshotClusterContext, HeartbeatContextImpl snapshotHeartbeatContext, ElectionCredentialsProvider credentialsProvider)
{
IDictionary <string, Election> electionsSnapshot = new Dictionary <string, Election>();
foreach (KeyValuePair <string, Election> election in _elections.SetOfKeyValuePairs())
{
electionsSnapshot[election.Key] = election.Value.snapshot();
}
return(new ElectionContextImpl(Me, commonStateSnapshot, logging, timeouts, snapshotClusterContext, snapshotHeartbeatContext, new List <ElectionRole>(_roles), electionsSnapshot, credentialsProvider));
}
public HeartbeatListener_AdapterAnonymousInnerClass(ClusterContextImpl outerInstance)
{
this.outerInstance = outerInstance;
}