Exemplo n.º 1
0
//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]);
        }
Exemplo n.º 2
0
        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());
            }
        }
Exemplo n.º 3
0
        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()));
        }