com.hazelcast.core.HazelcastInstance Java Examples

@Test
public void test_simple_sequencer_initialization_declarative()
        throws Exception {

    ClassLoader classLoader = BasicTestCase.class.getClassLoader();
    InputStream stream = classLoader.getResourceAsStream("hazelcast-node-configuration.xml");
    Config config = new XmlConfigBuilder(stream).build();

    TestHazelcastInstanceFactory factory = new TestHazelcastInstanceFactory(1);
    HazelcastInstance hazelcastInstance = factory.newHazelcastInstance(config);

    try {
        Snowcast snowcast = SnowcastSystem.snowcast(hazelcastInstance);
        SnowcastSequencer sequencer = buildSnowcastSequencer(snowcast);

        assertNotNull(sequencer);
    } finally {
        factory.shutdownAll();
    }
}
 

public static void main( String[] args ) throws FileNotFoundException, InterruptedException
{
   Config config = new Config();
   HazelcastInstance hazelcastInstance = Hazelcast.newHazelcastInstance(config);
   
   IMap<String,String> map = hazelcastInstance.getMap("TimeToLiveMap");
   
   map.put("hola", "tu", 10, TimeUnit.SECONDS);
   
   while (true){
      Thread.sleep(1000);
      String dato =map.get("hola");
      if (null!=dato){
         System.out.println(dato);
      } else {
         break;
      }
   }
   System.out.println("Data expired");
}
 

public void boot(String[] args) throws Exception {
    // create and embed the hazelcast server
    // (you can use the hazelcast client if you want to connect to external hazelcast server)
    HazelcastInstance hz = Hazelcast.newHazelcastInstance();

    main = new Main();
    main.bind("hz", hz);

    if (args.length == 0) {
        // route which uses get/put operations
        main.addRouteBuilder(new CounterRoute("Foo", 8080));
    } else {
        // route which uses atomic counter
        main.addRouteBuilder(new AtomicCounterRoute("Foo", 8080));
    }
    main.run();
}
 

@Test(expected = SnowcastStateException.class)
public void test_id_generation_in_detached_state()
        throws Exception {

    TestHazelcastInstanceFactory factory = new TestHazelcastInstanceFactory(1);
    HazelcastInstance hazelcastInstance = factory.newHazelcastInstance();

    try {
        Snowcast snowcast = SnowcastSystem.snowcast(hazelcastInstance);
        SnowcastSequencer sequencer = buildSnowcastSequencer(snowcast);

        assertNotNull(sequencer);
        assertNotNull(sequencer.next());

        // Detach the node and free the currently used logical node ID
        sequencer.detachLogicalNode();

        sequencer.next();
    } finally {
        factory.shutdownAll();
    }
}
 

@Bean
public HazelcastInstance hazelcastInstance(JHipsterProperties jHipsterProperties) {
    log.debug("Configuring Hazelcast");
    HazelcastInstance hazelCastInstance = Hazelcast.getHazelcastInstanceByName("fbiengine");
    if (hazelCastInstance != null) {
        log.debug("Hazelcast already initialized");
        return hazelCastInstance;
    }
    Config config = new Config();
    config.setInstanceName("fbiengine");
    config.getNetworkConfig().setPort(5701);
    config.getNetworkConfig().setPortAutoIncrement(true);

    // In development, remove multicast auto-configuration
    if (env.acceptsProfiles(JHipsterConstants.SPRING_PROFILE_DEVELOPMENT)) {
        System.setProperty("hazelcast.local.localAddress", "127.0.0.1");

        config.getNetworkConfig().getJoin().getAwsConfig().setEnabled(false);
        config.getNetworkConfig().getJoin().getMulticastConfig().setEnabled(false);
        config.getNetworkConfig().getJoin().getTcpIpConfig().setEnabled(false);
    }
    config.getMapConfigs().put("default", initializeDefaultMapConfig());
    config.getMapConfigs().put("com.fbi.engine.domain.*", initializeDomainMapConfig(jHipsterProperties));
    return Hazelcast.newHazelcastInstance(config);
}
 

private void handleNewMember(HazelcastInstance instance, Member member) {
    
    // Relationship between Member and MiniCube ID
    IMap<String, String> miniCubeManager = instance.getMap(MINICUBE_MANAGER);
    LOGGER.info("Minicube manager status {}", ObjectUtils.getDisplayString(miniCubeManager));
    
    String key = member.getSocketAddress().toString();
    // FIXME: load-pending status need refactor
    instance.getCluster().getLocalMember().setBooleanAttribute("load-pending", false);
    
    if (miniCubeManager.containsKey(key) && !miniCubeManager.get(key).startsWith("?")) {
        // Maybe node-restart
        LOGGER.info("A node{} restarted, so we need rebuild cube{}", key, miniCubeManager.get(key));
        // Reassign task.
        reassignRole(miniCubeManager.get(key), miniCubeManager.get(key).split("::")[0]);
    } else {
        // First time join into cluster
        String id = "?" + "::" + hzGroupName + "@" + key;
        miniCubeManager.put(key, id);
        
        member.setStringAttribute("cubeId", id);
        LOGGER.info("Add {} into cluster {}", id, hzGroupName);
    }
    LOGGER.info("Set load-pending status to false, enable reassign feature on {}", member);
}
 

@Test
public void test_sequencer_timestamp()
        throws Exception {

    TestHazelcastInstanceFactory factory = new TestHazelcastInstanceFactory(1);
    HazelcastInstance hazelcastInstance = factory.newHazelcastInstance();

    try {
        Snowcast snowcast = SnowcastSystem.snowcast(hazelcastInstance);
        SnowcastSequencer sequencer = buildSnowcastSequencer(snowcast);

        int boundedNodeCount = calculateBoundedMaxLogicalNodeCount(128);
        int shifting = calculateLogicalNodeShifting(boundedNodeCount);
        long sequence = generateSequenceId(10000, 10, 100, shifting);

        assertEquals(10000, sequencer.timestampValue(sequence));
    } finally {
        factory.shutdownAll();
    }
}
 

private void createTopic(String topic) {
    if (!topicExists(topic)) {
        String now = Utility.getInstance().date2str(new Date(), true);
        String nodes = HazelcastSetup.NAMESPACE+NODES;
        String realTopic = HazelcastSetup.NAMESPACE+topic;
        HazelcastInstance client = HazelcastSetup.getHazelcastClient();
        IMap<String, byte[]> map = client.getMap(nodes);
        Map<String, String> metadata = new HashMap<>();
        metadata.put("node", topic);
        metadata.put("name", Platform.getInstance().getName());
        metadata.put("created", now);
        metadata.put("updated", now);
        try {
            map.put(topic, msgPack.pack(metadata));
            // create topic if not exists
            client.getReliableTopic(realTopic);
            log.info("Topic {} created", realTopic);
        } catch (IOException e) {
            // this does not happen
            log.error("Unable to create topic {} - {}", topic, e.getMessage());
        }
    }
}
 

public static void warmupPartitions(HazelcastInstance hazelcastInstance) {
    LOGGER.info("Waiting for partition warmup");

    PartitionService partitionService = hazelcastInstance.getPartitionService();
    long started = System.nanoTime();
    for (Partition partition : partitionService.getPartitions()) {
        if (System.nanoTime() - started > PARTITION_WARMUP_TIMEOUT_NANOS) {
            throw new IllegalStateException("Partition warmup timeout. Partitions didn't get an owner in time");
        }

        while (partition.getOwner() == null) {
            LOGGER.debug("Partition owner is not yet set for partitionId: " + partition.getPartitionId());
            sleepMillisThrowException(PARTITION_WARMUP_SLEEP_INTERVAL_MILLIS);
        }
    }

    LOGGER.info("Partitions are warmed up successfully");
}
 

public static void main(String[] args) {
	// 获取Hazelcast实例
	HazelcastInstance ins = Hazelcast.newHazelcastInstance();

	// 从集群中读取Map实例
	Map<Integer, String> map = ins.getMap("default map");

	// 向集群中添加数据
	System.out.println("Begin insert data");
	map.put(1, "Cait Cassiopeia");
	map.put(2, "Annie");
	map.put(3, "Evelynn");
	map.put(4, "Ashe");
	System.out.println("End");
	
}
 

public static void main(String[] args) {
    Config cfg = new Config();
    HazelcastInstance instance = Hazelcast.newHazelcastInstance(cfg);
    Map<Integer, String> mapCustomers = instance.getMap("customers");
    mapCustomers.put(1, "Joe");
    mapCustomers.put(2, "Ali");
    mapCustomers.put(3, "Avi");

    System.out.println("Customer with key 1: "+ mapCustomers.get(1));
    System.out.println("Map Size:" + mapCustomers.size());

    Queue<String> queueCustomers = instance.getQueue("customers");
    queueCustomers.offer("Tom");
    queueCustomers.offer("Mary");
    queueCustomers.offer("Jane");
    System.out.println("First customer: " + queueCustomers.poll());
    System.out.println("Second customer: "+ queueCustomers.peek());
    System.out.println("Queue size: " + queueCustomers.size());
}
 

@Test
public void testGlobalCustomSerializationConfiguredProgrammaticallyForClientConfig() {
    Config memberConfig = new Config();
    SubZero.useAsGlobalSerializer(memberConfig);
    hazelcastFactory.newHazelcastInstance(memberConfig);

    String mapName = randomMapName();
    ClientConfig config = new ClientConfig();

    SubZero.useAsGlobalSerializer(config, MyGlobalUserSerlizationConfig.class);

    HazelcastInstance member = hazelcastFactory.newHazelcastClient(config);
    IMap<Integer, AnotherNonSerializableObject> myMap = member.getMap(mapName);
    myMap.put(0, new AnotherNonSerializableObject());
    AnotherNonSerializableObject fromCache = myMap.get(0);

    assertEquals("deserialized", fromCache.name);
}
 

/**
 * 选出新的 Master服务器
 * @param hazelcastInstance
 */
public static void voteMaster(HazelcastInstance hazelcastInstance) {
	Set<Member> members = hazelcastInstance.getCluster().getMembers() ;
   	Member master = null ;
   	for(Member member : members) {
   		if(master == null || (member!=null && member.getLongAttribute("start")!=null && member.getLongAttribute("start") < master.getLongAttribute("start"))) {
   			master = member ;
   		}
   	}
   	if(master!=null) {
   		hazelcastInstance.getTopic(UKDataContext.UCKeFuTopic.TOPIC_VOTE.toString()).publish(new RPCDataBean(master.getStringAttribute("id"), master.getAddress().getHost(), master.getAddress().getPort() , master.getLongAttribute("start")));
   	}
}
 

public static void main(String[] args){
    Config config = new Config();
    GlobalSerializerConfig globalConfig = new GlobalSerializerConfig();
    globalConfig.setOverrideJavaSerialization(true).setImplementation(new DataSerializer());

    config.getSerializationConfig().setGlobalSerializerConfig(globalConfig);

   HazelcastInstance instance = Hazelcast.newHazelcastInstance(config);

   IMap<String, String> aMap = instance.getMap("aMap");

   aMap.addEntryListener(new MyListener(), true);

   
   aMap.put("key", "value");
   aMap.put("key", "Another value");
   aMap.remove("key");
   aMap.put("other key", "other value");
   aMap.clear();


   IMap<String, Data> otherMap = instance.getMap("otherMap");

   otherMap.addEntryListener(new MyListener(), true);
   otherMap.put("key", new Data());
   Data data = otherMap.get("key");
   data.date=new Date();
   data.value=1000;
   otherMap.put("key",data);

   instance.shutdown();
}
 

public static void waitClusterSize(org.apache.log4j.Logger logger, HazelcastInstance hz, int clusterSize) {
    for (; ; ) {
        if (hz.getCluster().getMembers().size() >= clusterSize) {
            return;
        }

        logger.info("waiting cluster == " + clusterSize);
        sleepSeconds(1);
    }
}
 

@Bean
@SpringSessionHazelcastInstance
HazelcastInstance qualifiedHazelcastInstance() {
	HazelcastInstance hazelcastInstance = mock(HazelcastInstance.class);
	given(hazelcastInstance.getMap(anyString())).willReturn(qualifiedHazelcastInstanceSessions);
	return hazelcastInstance;
}
 

private static void produce(HazelcastInstance hazelcastInstance) {
   IQueue<String> cola = hazelcastInstance.getQueue("cola");
   
   int count=0;
   while (true){
      try {
         cola.offer(Integer.toString(count++));
         Thread.sleep(1000);
         System.out.println("Added to queue. It has now "+cola.size());
      } catch (InterruptedException e) {
         e.printStackTrace();
      }
   }
}
 

public static void main(String[] args) {
	//创建一个 hazelcastInstance实例
	HazelcastInstance instance = Hazelcast.newHazelcastInstance();
	Map<Integer, String> clusterMap = instance.getMap("MyMap");
	Queue<String> clusterQueue = instance.getQueue("MyQueue");
	
	System.out.println("Map Value:" + clusterMap.get(1));
	System.out.println("Queue Size :" + clusterQueue.size());
	System.out.println("Queue Value 1:" + clusterQueue.poll());
	System.out.println("Queue Value 2:" + clusterQueue.poll());
	System.out.println("Queue Size :" + clusterQueue.size());
}
 

@Bean
@Primary
HazelcastInstance primaryHazelcastInstance() {
	HazelcastInstance hazelcastInstance = mock(HazelcastInstance.class);
	given(hazelcastInstance.getMap(anyString())).willReturn(primaryHazelcastInstanceSessions);
	return hazelcastInstance;
}
 

@Bean
public HazelcastInstance transactionAwareHazelcast() {
  TransactionAwareHazelcastInstanceProxyFactory factory =
      new TransactionAwareHazelcastInstanceProxyFactory(hazelcast(), true);

  return factory.create();
}
 

@Test
public void test_id_generation_in_reattached_state()
        throws Exception {

    Hazelcast.newHazelcastInstance(config);
    HazelcastInstance client = HazelcastClient.newHazelcastClient(clientConfig);

    try {
        Snowcast snowcast = SnowcastSystem.snowcast(client);
        SnowcastSequencer sequencer = buildSnowcastSequencer(snowcast);

        assertNotNull(sequencer);
        assertNotNull(sequencer.next());

        // Detach the node and free the currently used logical node ID
        sequencer.detachLogicalNode();

        try {
            // Must fail since we're in detached state!
            sequencer.next();
            fail();
        } catch (SnowcastStateException e) {
            // Expected, so ignore
        }

        // Re-attach the node and assign a free logical node ID
        sequencer.attachLogicalNode();

        assertNotNull(sequencer.next());
    } finally {
        HazelcastClient.shutdownAll();
        Hazelcast.shutdownAll();
    }
}
 

@Test
public void givenSingleSerializerExist_whenHazelcastInstanceIsInjected_thenTypeIdIsGreaterThenZero() {
    Serializer serializer = new Serializer();
    serializer.setHazelcastInstance(newMockHazelcastInstance());

    HazelcastInstance hz = newMockHazelcastInstance();
    serializer.setHazelcastInstance(hz);

    int typeId = serializer.getTypeId();
    assertTrue(typeId > 0);
}
 

@Bean
public HazelcastInstance hazelcastInstance(JHipsterProperties jHipsterProperties) {
    log.debug("Configuring Hazelcast");
    HazelcastInstance hazelCastInstance = Hazelcast.getHazelcastInstanceByName("uaa");
    if (hazelCastInstance != null) {
        log.debug("Hazelcast already initialized");
        return hazelCastInstance;
    }
    Config config = new Config();
    config.setInstanceName("uaa");
    config.getNetworkConfig().setPort(5701);
    config.getNetworkConfig().setPortAutoIncrement(true);

    // In development, remove multicast auto-configuration
    if (env.acceptsProfiles(JHipsterConstants.SPRING_PROFILE_DEVELOPMENT)) {
        System.setProperty("hazelcast.local.localAddress", "127.0.0.1");

        config.getNetworkConfig().getJoin().getAwsConfig().setEnabled(false);
        config.getNetworkConfig().getJoin().getMulticastConfig().setEnabled(false);
        config.getNetworkConfig().getJoin().getTcpIpConfig().setEnabled(false);
    }
    config.getMapConfigs().put("default", initializeDefaultMapConfig());

    // Full reference is available at: http://docs.hazelcast.org/docs/management-center/3.9/manual/html/Deploying_and_Starting.html
    config.setManagementCenterConfig(initializeDefaultManagementCenterConfig(jHipsterProperties));
    config.getMapConfigs().put("com.wyy.domain.*", initializeDomainMapConfig(jHipsterProperties));
    return Hazelcast.newHazelcastInstance(config);
}
 

@Bean
public HazelcastInstance hazelcastInstance(JHipsterProperties jHipsterProperties) {
    log.debug("Configuring Hazelcast");
    HazelcastInstance hazelCastInstance = Hazelcast.getHazelcastInstanceByName("umm");
    if (hazelCastInstance != null) {
        log.debug("Hazelcast already initialized");
        return hazelCastInstance;
    }
    Config config = new Config();
    config.setInstanceName("umm");
    config.getNetworkConfig().setPort(5701);
    config.getNetworkConfig().setPortAutoIncrement(true);

    // In development, remove multicast auto-configuration
    if (env.acceptsProfiles(JHipsterConstants.SPRING_PROFILE_DEVELOPMENT)) {
        System.setProperty("hazelcast.local.localAddress", "127.0.0.1");

        config.getNetworkConfig().getJoin().getAwsConfig().setEnabled(false);
        config.getNetworkConfig().getJoin().getMulticastConfig().setEnabled(false);
        config.getNetworkConfig().getJoin().getTcpIpConfig().setEnabled(false);
    }
    config.getMapConfigs().put("default", initializeDefaultMapConfig());

    // Full reference is available at: http://docs.hazelcast.org/docs/management-center/3.9/manual/html/Deploying_and_Starting.html
    config.setManagementCenterConfig(initializeDefaultManagementCenterConfig(jHipsterProperties));
    config.getMapConfigs().put("com.wyy.domain.*", initializeDomainMapConfig(jHipsterProperties));
    return Hazelcast.newHazelcastInstance(config);
}
 

@Nonnull
private HazelcastClientInstanceImpl getHazelcastClient(@Nonnull HazelcastInstance hazelcastInstance) {
    //ACCESSIBILITY_HACK
    return ExceptionUtils.execute(() -> {
        // Ugly hack due to lack in SPI
        Field clientField = HazelcastClientProxy.class.getDeclaredField("client");
        clientField.setAccessible(true);
        return (HazelcastClientInstanceImpl) clientField.get(hazelcastInstance);
    }, RETRIEVE_CLIENT_ENGINE_FAILED);
}
 

@Bean
public HazelcastInstance hazelcastInstance() {
    Config config = new Config();

    if (zkEnabled) {
        addZkConfig(config);
    }

    config.addMapConfig(createDeviceCredentialsCacheConfig());

    return Hazelcast.newHazelcastInstance(config);
}
 

/**
 * Checks if a key is located on a Hazelcast instance.
 *
 * @param instance the HazelcastInstance the key should belong to
 * @param key      the key to check
 * @return <tt>true</tt> if the key belongs to the Hazelcast instance, <tt>false</tt> otherwise
 */
public static boolean isLocalKey(HazelcastInstance instance, Object key) {
    PartitionService partitionService = instance.getPartitionService();
    Partition partition = partitionService.getPartition(key);
    Member owner;
    while (true) {
        owner = partition.getOwner();
        if (owner != null) {
            break;
        }
        sleepSeconds(1);
    }
    return owner.equals(instance.getLocalEndpoint());
}
 

public static void main(String[] args) throws FileNotFoundException {
	//加载配置
	Config config = new ClasspathXmlConfig("org/palm/hazelcast/map/store/mapStoreConfig.xml");
	//创建Hazelcast实力
	HazelcastInstance ins = Hazelcast.newHazelcastInstance(config);
	//获取Map
	Map<Integer, String> map = ins.getMap("demo");
	println(map.get(1));//输出第一条数据
	
	map.put(11, "Moonbrook");//添加一条数据
	println(map.get(11));//输出第一条数据
	
	map.remove(11);//移除添加的数据
	println(map.get(11));//输出被移除的数据
}
 

@Test
@SuppressWarnings("unused")
void newHazelcastIndexedSessionRepository() {
	// tag::new-hazelcastindexedsessionrepository[]

	Config config = new Config();

	// ... configure Hazelcast ...

	HazelcastInstance hazelcastInstance = Hazelcast.newHazelcastInstance(config);

	HazelcastIndexedSessionRepository repository = new HazelcastIndexedSessionRepository(hazelcastInstance);
	// end::new-hazelcastindexedsessionrepository[]
}
 

@Test
public void test_comparator_first_higher_by_counter()
        throws Exception {

    TestHazelcastInstanceFactory factory = new TestHazelcastInstanceFactory(1);
    HazelcastInstance hazelcastInstance = factory.newHazelcastInstance();

    try {
        Snowcast snowcast = SnowcastSystem.snowcast(hazelcastInstance);
        SnowcastSequencer sequencer = buildSnowcastSequencer(snowcast);

        int boundedNodeCount = calculateBoundedMaxLogicalNodeCount(SnowcastConstants.DEFAULT_MAX_LOGICAL_NODES_13_BITS);
        int shifting = calculateLogicalNodeShifting(boundedNodeCount);
        long sequence1 = generateSequenceId(10000, 1, 2, shifting);
        long sequence2 = generateSequenceId(10000, 1, 1, shifting);

        Comparator<Long> comparator = SnowcastSequenceUtils.snowcastSequenceComparator(sequencer);

        assertEquals(1, comparator.compare(sequence1, sequence2));
    } finally {
        factory.shutdownAll();
    }
}