Examples with ClusterId net.dempsy.config.ClusterId used on opensource projects

Example 11 with ClusterId

use of net.dempsy.config.ClusterId in project Dempsy by Dempsy.

the class TestInstanceManager method setupContainer.

@SuppressWarnings("resource")
public Container setupContainer(final MessageProcessorLifecycle<?> prototype) throws ContainerException {
    dispatcher = new DummyDispatcher();
    statsCollector = new BasicClusterStatsCollector();
    manager = new NonLockingAltContainer().setMessageProcessor(prototype).setClusterId(new ClusterId("test", "test"));
    manager.setDispatcher(dispatcher);
    manager.setInbound(new DummyInbound());
    tm = new DefaultThreadingModel(TestInstanceManager.class.getName());
    tm.start(TestInstanceManager.class.getName());
    manager.start(new TestInfrastructure(tm) {

        BasicNodeStatsCollector nStats = new BasicNodeStatsCollector();

        @Override
        public ClusterStatsCollector getClusterStatsCollector(final ClusterId clusterId) {
            return statsCollector;
        }

        @Override
        public NodeStatsCollector getNodeStatsCollector() {
            return nStats;
        }
    });
    return manager;
}

Example 12 with ClusterId

use of net.dempsy.config.ClusterId in project Dempsy by Dempsy.

the class TestGroupRoutingStrategy method testInboundDoubleHappyPathRegister.

@Test
public void testInboundDoubleHappyPathRegister() throws Exception {
    final int numShardsToExpect = Integer.parseInt(Utils.DEFAULT_TOTAL_SHARDS);
    final String groupName = "testInboundDoubleHappyPathRegister";
    try (final RoutingStrategy.Inbound ib1 = new RoutingInboundManager().getAssociatedInstance(ClusterGroupInbound.class.getPackage().getName() + ":" + groupName);
        final RoutingStrategy.Inbound ib2 = new RoutingInboundManager().getAssociatedInstance(ClusterGroupInbound.class.getPackage().getName() + ":" + groupName)) {
        final ClusterId clusterId = new ClusterId("test", "test");
        final NodeAddress node1Addr = new DummyNodeAddress("node1");
        final GroupDetails gd1 = new GroupDetails(groupName, node1Addr);
        final ContainerAddress node1Ca = new ContainerAddress(node1Addr, 0);
        final Utils<GroupDetails> utils = new Utils<>(infra, groupName, gd1);
        ib1.setContainerDetails(clusterId, node1Ca, (l, m) -> {
        });
        ib1.start(infra);
        final NodeAddress node2Addr = new DummyNodeAddress("node2");
        final ContainerAddress node2Ca = new ContainerAddress(node2Addr, 0);
        ib2.setContainerDetails(clusterId, node2Ca, (l, m) -> {
        });
        try (final ClusterInfoSession session2 = sessFact.createSession()) {
            ib2.start(new TestInfrastructure(session2, infra.getScheduler()));
            assertTrue(waitForShards(session, utils, numShardsToExpect));
            // if this worked right then numShardsToExpect/2 should be owned by each ... eventually.
            checkForShardDistribution(session, utils, numShardsToExpect, 2);
            // disrupt the session. This should cause a reshuffle but not fail
            disruptor.accept(session2);
            // everything should settle back
            checkForShardDistribution(session, utils, numShardsToExpect, 2);
            // now kill the second session.
            // this will disconnect the second Inbound and so the first should take over
            session2.close();
            // see if we now have 1 session and it has all shards
            checkForShardDistribution(session, utils, numShardsToExpect, 1);
        }
    }
}

Example 13 with ClusterId

use of net.dempsy.config.ClusterId in project Dempsy by Dempsy.

the class TestContainerLoadHandling method setUp.

@Before
public void setUp() throws Exception {
    final ClusterId cid = new ClusterId("TestContainerLoadHandling", "test" + sequence++);
    dispatcher = new MockDispatcher();
    final BasicClusterStatsCollector sc = new BasicClusterStatsCollector();
    clusterStats = sc;
    nodeStats = new BasicNodeStatsCollector();
    container = tr.track(new Manager<Container>(Container.class).getAssociatedInstance(containerId)).setMessageProcessor(new MessageProcessor<TestMessageProcessor>(new TestMessageProcessor())).setClusterId(cid);
    container.setDispatcher(dispatcher);
    container.setInbound(new DummyInbound());
    container.start(new TestInfrastructure(null, null) {

        @Override
        public ClusterStatsCollector getClusterStatsCollector(final ClusterId clusterId) {
            return sc;
        }

        @Override
        public NodeStatsCollector getNodeStatsCollector() {
            return nodeStats;
        }
    });
    forceOutputException = false;
    stillRunning = true;
}

Example 14 with ClusterId

use of net.dempsy.config.ClusterId in project Dempsy by Dempsy.

the class NodeManager method start.

public NodeManager start() throws DempsyException {
    validate();
    nodeStatsCollector = tr.track((NodeStatsCollector) node.getNodeStatsCollector());
    // TODO: cleaner?
    statsCollectorFactory = tr.track(new Manager<>(ClusterStatsCollectorFactory.class).getAssociatedInstance(node.getClusterStatsCollectorFactoryId()));
    // =====================================
    // set the dispatcher on adaptors and create containers for mp clusters
    final AtomicReference<String> firstAdaptorClusterName = new AtomicReference<>(null);
    node.getClusters().forEach(c -> {
        if (c.isAdaptor()) {
            if (firstAdaptorClusterName.get() == null)
                firstAdaptorClusterName.set(c.getClusterId().clusterName);
            final Adaptor adaptor = c.getAdaptor();
            adaptors.put(c.getClusterId(), adaptor);
            if (c.getRoutingStrategyId() != null && !"".equals(c.getRoutingStrategyId().trim()) && !" ".equals(c.getRoutingStrategyId().trim()))
                LOGGER.warn("The cluster " + c.getClusterId() + " contains an adaptor but also has the routingStrategy set. The routingStrategy will be ignored.");
            if (c.getOutputScheduler() != null)
                LOGGER.warn("The cluster " + c.getClusterId() + " contains an adaptor but also has an output executor set. The output executor will never be used.");
        } else {
            String containerTypeId = c.getContainerTypeId();
            if (containerTypeId == null)
                // can't be null
                containerTypeId = node.getContainerTypeId();
            final Container con = makeContainer(containerTypeId).setMessageProcessor(c.getMessageProcessor()).setClusterId(c.getClusterId()).setMaxPendingMessagesPerContainer(c.getMaxPendingMessagesPerContainer());
            // TODO: This is a hack for now.
            final Manager<RoutingStrategy.Inbound> inboundManager = new RoutingInboundManager();
            final RoutingStrategy.Inbound is = inboundManager.getAssociatedInstance(c.getRoutingStrategyId());
            final boolean outputSupported = c.getMessageProcessor().isOutputSupported();
            final Object outputScheduler = c.getOutputScheduler();
            // if there mp handles output but there's no output scheduler then we should warn.
            if (outputSupported && outputScheduler == null)
                LOGGER.warn("The cluster " + c.getClusterId() + " contains a message processor that supports an output cycle but there's no executor set so it will never be invoked.");
            if (!outputSupported && outputScheduler != null)
                LOGGER.warn("The cluster " + c.getClusterId() + " contains a message processor that doesn't support an output cycle but there's an output cycle executor set. The output cycle executor will never be used.");
            final OutputScheduler os = (outputSupported && outputScheduler != null) ? (OutputScheduler) outputScheduler : null;
            containers.add(new PerContainer(con, is, c, os));
        }
    });
    // it we're all adaptor then don't bother to get the receiver.
    if (containers.size() == 0) {
        // here there's no point in a receiver since there's nothing to receive.
        if (firstAdaptorClusterName.get() == null)
            throw new IllegalStateException("There seems to be no clusters or adaptors defined for this node \"" + node.toString() + "\"");
    } else {
        receiver = (Receiver) node.getReceiver();
        if (// otherwise we're all adaptor
        receiver != null)
            nodeAddress = receiver.getAddress(this);
        else if (firstAdaptorClusterName.get() == null)
            throw new IllegalStateException("There seems to be no clusters or adaptors defined for this node \"" + node.toString() + "\"");
    }
    nodeId = Optional.ofNullable(nodeAddress).map(n -> n.getGuid()).orElse(firstAdaptorClusterName.get());
    if (nodeStatsCollector == null) {
        LOGGER.warn("There is no {} set for the the application '{}'", StatsCollector.class.getSimpleName(), node.application);
        nodeStatsCollector = new DummyNodeStatsCollector();
    }
    nodeStatsCollector.setNodeId(nodeId);
    if (nodeAddress == null && node.getReceiver() != null)
        LOGGER.warn("The node at " + nodeId + " contains no message processors but has a Reciever set. The receiver will never be started.");
    if (nodeAddress == null && node.getDefaultRoutingStrategyId() != null)
        LOGGER.warn("The node at " + nodeId + " contains no message processors but has a defaultRoutingStrategyId set. The routingStrategyId will never be used.");
    if (threading == null)
        threading = tr.track(new DefaultThreadingModel(nodeId)).configure(node.getConfiguration()).start(nodeId);
    else if (!threading.isStarted())
        threading.start(nodeId);
    nodeStatsCollector.setMessagesPendingGauge(() -> threading.getNumberLimitedPending());
    final NodeReceiver nodeReciever = receiver == null ? null : tr.track(new NodeReceiver(containers.stream().map(pc -> pc.container).collect(Collectors.toList()), threading, nodeStatsCollector));
    final Map<ClusterId, ClusterInformation> messageTypesByClusterId = new HashMap<>();
    containers.stream().map(pc -> pc.clusterDefinition).forEach(c -> {
        messageTypesByClusterId.put(c.getClusterId(), new ClusterInformation(c.getRoutingStrategyId(), c.getClusterId(), c.getMessageProcessor().messagesTypesHandled()));
    });
    final NodeInformation nodeInfo = nodeAddress != null ? new NodeInformation(receiver.transportTypeId(), nodeAddress, messageTypesByClusterId) : null;
    // Then actually register the Node
    if (nodeInfo != null) {
        keepNodeRegstered = new PersistentTask(LOGGER, isRunning, persistenceScheduler, RETRY_PERIOND_MILLIS) {

            @Override
            public boolean execute() {
                try {
                    session.recursiveMkdir(rootPaths.clustersDir, null, DirMode.PERSISTENT, DirMode.PERSISTENT);
                    session.recursiveMkdir(rootPaths.nodesDir, null, DirMode.PERSISTENT, DirMode.PERSISTENT);
                    final String nodePath = rootPaths.nodesDir + "/" + nodeId;
                    session.mkdir(nodePath, nodeInfo, DirMode.EPHEMERAL);
                    final NodeInformation reread = (NodeInformation) session.getData(nodePath, this);
                    final boolean ret = nodeInfo.equals(reread);
                    if (ret == true)
                        ptaskReady.set(true);
                    return ret;
                } catch (final ClusterInfoException e) {
                    final String logmessage = "Failed to register the node. Retrying in " + RETRY_PERIOND_MILLIS + " milliseconds.";
                    if (LOGGER.isDebugEnabled())
                        LOGGER.info(logmessage, e);
                    else
                        LOGGER.info(logmessage, e);
                }
                return false;
            }

            @Override
            public String toString() {
                return "register node information";
            }
        };
    }
    // =====================================
    // The layering works this way.
    // 
    // Receiver -> NodeReceiver -> adaptor -> container -> OutgoingDispatcher -> RoutingStrategyOB -> Transport
    // 
    // starting needs to happen in reverse.
    // =====================================
    isRunning.set(true);
    this.tManager = tr.start(new TransportManager(), this);
    this.rsManager = tr.start(new RoutingStrategyManager(), this);
    // create the router but don't start it yet.
    this.router = new OutgoingDispatcher(rsManager, nodeAddress, nodeId, nodeReciever, tManager, nodeStatsCollector);
    // set up containers
    containers.forEach(pc -> pc.container.setDispatcher(router).setEvictionCycle(pc.clusterDefinition.getEvictionFrequency().evictionFrequency, pc.clusterDefinition.getEvictionFrequency().evictionTimeUnit));
    // IB routing strategy
    final int numContainers = containers.size();
    for (int i = 0; i < numContainers; i++) {
        final PerContainer c = containers.get(i);
        c.inboundStrategy.setContainerDetails(c.clusterDefinition.getClusterId(), new ContainerAddress(nodeAddress, i), c.container);
    }
    // setup the output executors by passing the containers
    containers.stream().filter(pc -> pc.outputScheduler != null).forEach(pc -> pc.outputScheduler.setOutputInvoker(pc.container));
    // set up adaptors
    adaptors.values().forEach(a -> a.setDispatcher(router));
    // start containers after setting inbound
    containers.forEach(pc -> tr.start(pc.container.setInbound(pc.inboundStrategy), this));
    // start the output schedulers now that the containers have been started.
    containers.stream().map(pc -> pc.outputScheduler).filter(os -> os != null).forEach(os -> tr.start(os, this));
    // start IB routing strategy
    containers.forEach(pc -> tr.start(pc.inboundStrategy, this));
    // start router
    tr.start(this.router, this);
    final PersistentTask startAdaptorAfterRouterIsRunning = new PersistentTask(LOGGER, isRunning, this.persistenceScheduler, 500) {

        @Override
        public boolean execute() {
            if (!router.isReady())
                return false;
            adaptors.entrySet().forEach(e -> threading.runDaemon(() -> tr.track(e.getValue()).start(), "Adaptor-" + e.getKey().clusterName));
            return true;
        }
    };
    // make sure the router is running. Once it is, start the adaptor(s)
    startAdaptorAfterRouterIsRunning.process();
    if (receiver != null)
        tr.track(receiver).start(nodeReciever, this);
    // close this session when we're done.
    tr.track(session);
    // make it known we're here and ready
    if (keepNodeRegstered != null)
        keepNodeRegstered.process();
    else
        ptaskReady.set(true);
    return this;
}

Example 15 with ClusterId

use of net.dempsy.config.ClusterId in project Dempsy by Dempsy.

the class MessageProcessor method checkOrInvokeValidStartMethod.

// ----------------------------------------------------------------------------
// Internals
// ----------------------------------------------------------------------------
private void checkOrInvokeValidStartMethod(final boolean invoke, final ClusterId clusterId) throws IllegalStateException {
    Method startMethod = null;
    for (final Method method : prototype.getClass().getMethods()) {
        if (method.isAnnotationPresent(Start.class)) {
            if (startMethod != null)
                throw new IllegalStateException("Multiple methods on the message processor of type\"" + SafeString.valueOf(prototype) + "\" is identified as a Start method. Please annotate at most one method using @Start.");
            startMethod = method;
        }
    }
    // if the start method takes a ClusterId or ClusterDefinition then pass it.
    if (startMethod != null) {
        final Class<?>[] parameterTypes = startMethod.getParameterTypes();
        boolean takesClusterId = false;
        if (parameterTypes != null && parameterTypes.length == 1) {
            if (ClusterId.class.isAssignableFrom(parameterTypes[0]))
                takesClusterId = true;
            else {
                throw new IllegalStateException("The method \"" + startMethod.getName() + "\" on " + SafeString.objectDescription(prototype) + " is annotated with the @" + Start.class.getSimpleName() + " annotation but doesn't have the correct signature. " + "It needs to either take no parameters or take a single " + ClusterId.class.getSimpleName() + " parameter.");
            }
        } else if (parameterTypes != null && parameterTypes.length > 1) {
            throw new IllegalStateException("The method \"" + startMethod.getName() + "\" on " + SafeString.objectDescription(prototype) + " is annotated with the @" + Start.class.getSimpleName() + " annotation but doesn't have the correct signature. " + "It needs to either take no parameters or take a single " + ClusterId.class.getSimpleName() + " parameter.");
        }
        if (invoke) {
            try {
                if (takesClusterId)
                    startMethod.invoke(prototype, clusterId);
                else
                    startMethod.invoke(prototype);
            } catch (final Exception e) {
                LOGGER.error(MarkerFactory.getMarker("FATAL"), "can't run MP initializer " + startMethod.getName(), e);
            }
        }
    }
}