//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldCorrectlyReturnCoreMemberRoles()
public virtual void ShouldCorrectlyReturnCoreMemberRoles()
{
//given
int numMembers = 3;
IList <MemberId> members = IntStream.range(0, numMembers).mapToObj(ignored => new MemberId(System.Guid.randomUUID())).collect(Collectors.toList());
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @SuppressWarnings("unchecked") com.hazelcast.core.IAtomicReference<org.neo4j.causalclustering.core.consensus.LeaderInfo> leaderRef = mock(com.hazelcast.core.IAtomicReference.class);
IAtomicReference <LeaderInfo> leaderRef = mock(typeof(IAtomicReference));
MemberId chosenLeaderId = members[0];
when(leaderRef.get()).thenReturn(new LeaderInfo(chosenLeaderId, 0L));
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @SuppressWarnings("unchecked") com.hazelcast.core.IMap<String,java.util.UUID> uuidDBMap = mock(com.hazelcast.core.IMap.class);
IMap <string, System.Guid> uuidDBMap = mock(typeof(IMap));
when(uuidDBMap.Keys).thenReturn(Collections.singleton(DEFAULT_DB_NAME));
when(_hzInstance.getAtomicReference <LeaderInfo>(startsWith(DB_NAME_LEADER_TERM_PREFIX))).thenReturn(leaderRef);
when(_hzInstance.getMap <string, System.Guid>(eq(CLUSTER_UUID_DB_NAME_MAP))).thenReturn(uuidDBMap);
// when
IDictionary <MemberId, RoleInfo> roleMap = HazelcastClusterTopology.GetCoreRoles(_hzInstance, new HashSet <MemberId, RoleInfo>(members));
// then
assertEquals("First member was expected to be leader.", RoleInfo.Leader, roleMap[chosenLeaderId]);
}
internal static void CasLeaders(HazelcastInstance hazelcastInstance, LeaderInfo leaderInfo, string dbName, Log log)
{
IAtomicReference <LeaderInfo> leaderRef = hazelcastInstance.getAtomicReference(DB_NAME_LEADER_TERM_PREFIX + dbName);
LeaderInfo current = leaderRef.get();
Optional <LeaderInfo> currentOpt = Optional.ofNullable(current);
//JAVA TO C# CONVERTER TODO TASK: Method reference arbitrary object instance method syntax is not converted by Java to C# Converter:
bool sameLeader = currentOpt.map(LeaderInfo::memberId).Equals(Optional.ofNullable(leaderInfo.MemberId()));
int termComparison = currentOpt.map(l => Long.compare(l.term(), leaderInfo.Term())).orElse(-1);
bool greaterTermExists = termComparison > 0;
bool sameTermButNoStepdown = termComparison == 0 && !leaderInfo.SteppingDown;
if (sameLeader || greaterTermExists || sameTermButNoStepdown)
{
return;
}
bool success = leaderRef.compareAndSet(current, leaderInfo);
if (!success)
{
log.Warn("Fail to set new leader info: %s. Latest leader info: %s.", leaderInfo, leaderRef.get());
}
}
private static Optional <LeaderInfo> GetLeaderForDBName(HazelcastInstance hazelcastInstance, string dbName)
{
IAtomicReference <LeaderInfo> leader = hazelcastInstance.getAtomicReference(DB_NAME_LEADER_TERM_PREFIX + dbName);
return(Optional.ofNullable(leader.get()));
}
