/*
* Copyright (c) 2008-2017, Hazelcast, Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hazelcast.instance;
import com.hazelcast.client.impl.ClientEngineImpl;
import com.hazelcast.cluster.ClusterState;
import com.hazelcast.cluster.Joiner;
import com.hazelcast.cluster.impl.TcpIpJoiner;
import com.hazelcast.config.Config;
import com.hazelcast.config.DiscoveryConfig;
import com.hazelcast.config.JoinConfig;
import com.hazelcast.config.ListenerConfig;
import com.hazelcast.config.MemberAttributeConfig;
import com.hazelcast.config.UserCodeDeploymentConfig;
import com.hazelcast.core.ClientListener;
import com.hazelcast.core.DistributedObjectListener;
import com.hazelcast.core.HazelcastInstanceAware;
import com.hazelcast.core.LifecycleEvent.LifecycleState;
import com.hazelcast.core.LifecycleListener;
import com.hazelcast.core.Member;
import com.hazelcast.core.MembershipListener;
import com.hazelcast.core.MigrationListener;
import com.hazelcast.internal.ascii.TextCommandService;
import com.hazelcast.internal.ascii.TextCommandServiceImpl;
import com.hazelcast.internal.cluster.impl.ClusterJoinManager;
import com.hazelcast.internal.cluster.impl.ClusterServiceImpl;
import com.hazelcast.internal.cluster.impl.ConfigCheck;
import com.hazelcast.internal.cluster.impl.DiscoveryJoiner;
import com.hazelcast.internal.cluster.impl.JoinRequest;
import com.hazelcast.internal.cluster.impl.MulticastJoiner;
import com.hazelcast.internal.cluster.impl.MulticastService;
import com.hazelcast.internal.cluster.impl.SplitBrainJoinMessage;
import com.hazelcast.internal.diagnostics.HealthMonitor;
import com.hazelcast.internal.management.ManagementCenterService;
import com.hazelcast.internal.metrics.MetricsRegistry;
import com.hazelcast.internal.partition.InternalPartitionService;
import com.hazelcast.internal.partition.impl.InternalMigrationListener;
import com.hazelcast.internal.partition.impl.InternalPartitionServiceImpl;
import com.hazelcast.internal.serialization.InternalSerializationService;
import com.hazelcast.internal.usercodedeployment.UserCodeDeploymentClassLoader;
import com.hazelcast.logging.ILogger;
import com.hazelcast.logging.LoggingServiceImpl;
import com.hazelcast.nio.Address;
import com.hazelcast.nio.ClassLoaderUtil;
import com.hazelcast.nio.ConnectionManager;
import com.hazelcast.nio.Packet;
import com.hazelcast.partition.PartitionLostListener;
import com.hazelcast.security.Credentials;
import com.hazelcast.security.SecurityContext;
import com.hazelcast.spi.annotation.PrivateApi;
import com.hazelcast.spi.discovery.SimpleDiscoveryNode;
import com.hazelcast.spi.discovery.impl.DefaultDiscoveryServiceProvider;
import com.hazelcast.spi.discovery.integration.DiscoveryMode;
import com.hazelcast.spi.discovery.integration.DiscoveryService;
import com.hazelcast.spi.discovery.integration.DiscoveryServiceProvider;
import com.hazelcast.spi.discovery.integration.DiscoveryServiceSettings;
import com.hazelcast.spi.impl.NodeEngineImpl;
import com.hazelcast.spi.impl.proxyservice.impl.ProxyServiceImpl;
import com.hazelcast.spi.properties.HazelcastProperties;
import com.hazelcast.util.Clock;
import com.hazelcast.util.EmptyStatement;
import com.hazelcast.util.ExceptionUtil;
import com.hazelcast.util.PhoneHome;
import com.hazelcast.version.MemberVersion;
import com.hazelcast.version.Version;
import java.lang.reflect.Constructor;
import java.nio.channels.ServerSocketChannel;
import java.security.PrivilegedAction;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import static com.hazelcast.cluster.memberselector.MemberSelectors.DATA_MEMBER_SELECTOR;
import static com.hazelcast.instance.NodeShutdownHelper.shutdownNodeByFiringEvents;
import static com.hazelcast.internal.cluster.impl.MulticastService.createMulticastService;
import static com.hazelcast.spi.properties.GroupProperty.DISCOVERY_SPI_ENABLED;
import static com.hazelcast.spi.properties.GroupProperty.DISCOVERY_SPI_PUBLIC_IP_ENABLED;
import static com.hazelcast.spi.properties.GroupProperty.GRACEFUL_SHUTDOWN_MAX_WAIT;
import static com.hazelcast.spi.properties.GroupProperty.LOGGING_TYPE;
import static com.hazelcast.spi.properties.GroupProperty.MAX_JOIN_SECONDS;
import static com.hazelcast.spi.properties.GroupProperty.SHUTDOWNHOOK_ENABLED;
import static com.hazelcast.spi.properties.GroupProperty.SHUTDOWNHOOK_POLICY;
import static com.hazelcast.util.ThreadUtil.createThreadName;
import static java.security.AccessController.doPrivileged;
@SuppressWarnings({"checkstyle:methodcount", "checkstyle:visibilitymodifier", "checkstyle:classdataabstractioncoupling",
"checkstyle:classfanoutcomplexity"})
@PrivateApi
public class Node {
private static final int THREAD_SLEEP_DURATION_MS = 500;
public final HazelcastInstanceImpl hazelcastInstance;
public final Config config;
public final NodeEngineImpl nodeEngine;
public final ClientEngineImpl clientEngine;
public final InternalPartitionServiceImpl partitionService;
public final ClusterServiceImpl clusterService;
public final MulticastService multicastService;
public final DiscoveryService discoveryService;
public final TextCommandServiceImpl textCommandService;
public final LoggingServiceImpl loggingService;
public final ConnectionManager connectionManager;
public final Address address;
public final SecurityContext securityContext;
private final ILogger logger;
private final AtomicBoolean shuttingDown = new AtomicBoolean(false);
private final NodeShutdownHookThread shutdownHookThread;
private final PhoneHome phoneHome = new PhoneHome();
private final InternalSerializationService serializationService;
private final ClassLoader configClassLoader;
private final NodeExtension nodeExtension;
private final HazelcastProperties properties;
private final BuildInfo buildInfo;
private final HealthMonitor healthMonitor;
private final Joiner joiner;
private ManagementCenterService managementCenterService;
private volatile NodeState state;
/**
* Codebase version of Hazelcast being executed at this Node, as resolved by {@link BuildInfoProvider}.
* For example, when running on hazelcast-3.8.jar, this would resolve to {@code Version.of(3,8,0)}.
* A node's codebase version may be different than cluster version.
*/
private final MemberVersion version;
@SuppressWarnings({"checkstyle:executablestatementcount", "checkstyle:methodlength"})
public Node(HazelcastInstanceImpl hazelcastInstance, Config config, NodeContext nodeContext) {
this.hazelcastInstance = hazelcastInstance;
this.config = config;
this.configClassLoader = getConfigClassloader(config);
this.properties = new HazelcastProperties(config);
String policy = properties.getString(SHUTDOWNHOOK_POLICY);
this.shutdownHookThread = new NodeShutdownHookThread("hz.ShutdownThread", policy);
// Calling getBuildInfo() instead of directly using BuildInfoProvider.BUILD_INFO.
// Version can be overridden via system property. That's why BuildInfo should be parsed for each Node.
this.buildInfo = BuildInfoProvider.getBuildInfo();
this.version = MemberVersion.of(buildInfo.getVersion());
String loggingType = properties.getString(LOGGING_TYPE);
loggingService = new LoggingServiceImpl(config.getGroupConfig().getName(), loggingType, buildInfo);
final AddressPicker addressPicker = nodeContext.createAddressPicker(this);
try {
addressPicker.pickAddress();
} catch (Throwable e) {
throw ExceptionUtil.rethrow(e);
}
final ServerSocketChannel serverSocketChannel = addressPicker.getServerSocketChannel();
try {
boolean liteMember = config.isLiteMember();
address = addressPicker.getPublicAddress();
nodeExtension = nodeContext.createNodeExtension(this);
final Map<String, Object> memberAttributes = findMemberAttributes(config.getMemberAttributeConfig().asReadOnly());
MemberImpl localMember = new MemberImpl(address, version, true, nodeExtension.createMemberUuid(address),
memberAttributes, liteMember, hazelcastInstance);
loggingService.setThisMember(localMember);
logger = loggingService.getLogger(Node.class.getName());
nodeExtension.printNodeInfo();
nodeExtension.beforeStart();
serializationService = nodeExtension.createSerializationService();
securityContext = config.getSecurityConfig().isEnabled() ? nodeExtension.getSecurityContext() : null;
nodeEngine = new NodeEngineImpl(this);
MetricsRegistry metricsRegistry = nodeEngine.getMetricsRegistry();
metricsRegistry.collectMetrics(nodeExtension);
healthMonitor = new HealthMonitor(this);
clientEngine = new ClientEngineImpl(this);
connectionManager = nodeContext.createConnectionManager(this, serverSocketChannel);
partitionService = new InternalPartitionServiceImpl(this);
clusterService = new ClusterServiceImpl(this, localMember);
textCommandService = new TextCommandServiceImpl(this);
multicastService = createMulticastService(addressPicker.getBindAddress(), this, config, logger);
discoveryService = createDiscoveryService(
this.config.getNetworkConfig().getJoin().getDiscoveryConfig().getAsReadOnly(), localMember);
joiner = nodeContext.createJoiner(this);
} catch (Throwable e) {
try {
serverSocketChannel.close();
} catch (Throwable ignored) {
EmptyStatement.ignore(ignored);
}
throw ExceptionUtil.rethrow(e);
}
}
private ClassLoader getConfigClassloader(Config config) {
UserCodeDeploymentConfig userCodeDeploymentConfig = config.getUserCodeDeploymentConfig();
ClassLoader classLoader;
if (userCodeDeploymentConfig.isEnabled()) {
ClassLoader parent = config.getClassLoader();
final ClassLoader theParent = parent == null ? Node.class.getClassLoader() : parent;
classLoader = doPrivileged(new PrivilegedAction<UserCodeDeploymentClassLoader>() {
@Override
public UserCodeDeploymentClassLoader run() {
return new UserCodeDeploymentClassLoader(theParent);
}
});
} else {
classLoader = config.getClassLoader();
}
return classLoader;
}
public DiscoveryService createDiscoveryService(DiscoveryConfig discoveryConfig, Member localMember) {
DiscoveryServiceProvider factory = discoveryConfig.getDiscoveryServiceProvider();
if (factory == null) {
factory = new DefaultDiscoveryServiceProvider();
}
ILogger logger = getLogger(DiscoveryService.class);
DiscoveryServiceSettings settings = new DiscoveryServiceSettings()
.setConfigClassLoader(configClassLoader)
.setLogger(logger)
.setDiscoveryMode(DiscoveryMode.Member)
.setDiscoveryConfig(discoveryConfig).setDiscoveryNode(
new SimpleDiscoveryNode(localMember.getAddress(), localMember.getAttributes()));
return factory.newDiscoveryService(settings);
}
@SuppressWarnings({"checkstyle:npathcomplexity", "checkstyle:cyclomaticcomplexity"})
private void initializeListeners(Config config) {
for (final ListenerConfig listenerCfg : config.getListenerConfigs()) {
Object listener = listenerCfg.getImplementation();
if (listener == null) {
try {
listener = ClassLoaderUtil.newInstance(configClassLoader, listenerCfg.getClassName());
} catch (Exception e) {
logger.severe(e);
}
}
if (listener instanceof HazelcastInstanceAware) {
((HazelcastInstanceAware) listener).setHazelcastInstance(hazelcastInstance);
}
boolean known = false;
if (listener instanceof DistributedObjectListener) {
final ProxyServiceImpl proxyService = (ProxyServiceImpl) nodeEngine.getProxyService();
proxyService.addProxyListener((DistributedObjectListener) listener);
known = true;
}
if (listener instanceof MembershipListener) {
clusterService.addMembershipListener((MembershipListener) listener);
known = true;
}
if (listener instanceof MigrationListener) {
partitionService.addMigrationListener((MigrationListener) listener);
known = true;
}
if (listener instanceof PartitionLostListener) {
partitionService.addPartitionLostListener((PartitionLostListener) listener);
known = true;
}
if (listener instanceof LifecycleListener) {
hazelcastInstance.lifecycleService.addLifecycleListener((LifecycleListener) listener);
known = true;
}
if (listener instanceof ClientListener) {
String serviceName = ClientEngineImpl.SERVICE_NAME;
nodeEngine.getEventService().registerLocalListener(serviceName, serviceName, listener);
known = true;
}
if (listener instanceof InternalMigrationListener) {
final InternalPartitionServiceImpl partitionService =
(InternalPartitionServiceImpl) nodeEngine.getPartitionService();
partitionService.setInternalMigrationListener((InternalMigrationListener) listener);
known = true;
}
if (nodeExtension.registerListener(listener)) {
known = true;
}
if (listener != null && !known) {
final String error = "Unknown listener type: " + listener.getClass();
Throwable t = new IllegalArgumentException(error);
logger.warning(error, t);
}
}
}
public ManagementCenterService getManagementCenterService() {
return managementCenterService;
}
public InternalSerializationService getSerializationService() {
return serializationService;
}
public ClusterServiceImpl getClusterService() {
return clusterService;
}
public InternalPartitionService getPartitionService() {
return partitionService;
}
public Address getMasterAddress() {
return clusterService.getMasterAddress();
}
public Address getThisAddress() {
return address;
}
public MemberImpl getLocalMember() {
return clusterService.getLocalMember();
}
public boolean isMaster() {
return clusterService.isMaster();
}
void start() {
nodeEngine.start();
initializeListeners(config);
hazelcastInstance.lifecycleService.fireLifecycleEvent(LifecycleState.STARTING);
clusterService.sendLocalMembershipEvent();
connectionManager.start();
if (config.getNetworkConfig().getJoin().getMulticastConfig().isEnabled()) {
final Thread multicastServiceThread = new Thread(multicastService,
createThreadName(hazelcastInstance.getName(), "MulticastThread"));
multicastServiceThread.start();
}
if (properties.getBoolean(DISCOVERY_SPI_ENABLED)) {
discoveryService.start();
// Discover local metadata from environment and merge into member attributes
mergeEnvironmentProvidedMemberMetadata();
}
if (properties.getBoolean(SHUTDOWNHOOK_ENABLED)) {
logger.finest("Adding ShutdownHook");
Runtime.getRuntime().addShutdownHook(shutdownHookThread);
}
state = NodeState.ACTIVE;
nodeExtension.beforeJoin();
join();
int clusterSize = clusterService.getSize();
if (config.getNetworkConfig().isPortAutoIncrement()
&& address.getPort() >= config.getNetworkConfig().getPort() + clusterSize) {
logger.warning("Config seed port is " + config.getNetworkConfig().getPort()
+ " and cluster size is " + clusterSize + ". Some of the ports seem occupied!");
}
try {
managementCenterService = new ManagementCenterService(hazelcastInstance);
} catch (Exception e) {
logger.warning("ManagementCenterService could not be constructed!", e);
}
nodeExtension.afterStart();
phoneHome.check(this, getBuildInfo().getVersion(), buildInfo.isEnterprise());
healthMonitor.start();
}
@SuppressWarnings("checkstyle:npathcomplexity")
public void shutdown(final boolean terminate) {
long start = Clock.currentTimeMillis();
if (logger.isFinestEnabled()) {
logger.finest("We are being asked to shutdown when state = " + state);
}
if (!setShuttingDown()) {
waitIfAlreadyShuttingDown();
return;
}
if (!terminate) {
final int maxWaitSeconds = properties.getSeconds(GRACEFUL_SHUTDOWN_MAX_WAIT);
if (!partitionService.prepareToSafeShutdown(maxWaitSeconds, TimeUnit.SECONDS)) {
logger.warning("Graceful shutdown could not be completed in " + maxWaitSeconds + " seconds!");
}
} else {
logger.warning("Terminating forcefully...");
}
// set the joined=false first so that
// threads do not process unnecessary
// events, such as remove address
clusterService.resetJoinState();
try {
if (properties.getBoolean(SHUTDOWNHOOK_ENABLED)) {
Runtime.getRuntime().removeShutdownHook(shutdownHookThread);
}
} catch (Throwable ignored) {
EmptyStatement.ignore(ignored);
}
try {
discoveryService.destroy();
} catch (Throwable ignored) {
EmptyStatement.ignore(ignored);
}
try {
shutdownServices(terminate);
state = NodeState.SHUT_DOWN;
logger.info("Hazelcast Shutdown is completed in " + (Clock.currentTimeMillis() - start) + " ms.");
} finally {
if (state != NodeState.SHUT_DOWN) {
shuttingDown.compareAndSet(true, false);
}
}
}
private void shutdownServices(boolean terminate) {
nodeExtension.beforeShutdown();
phoneHome.shutdown();
if (managementCenterService != null) {
managementCenterService.shutdown();
}
textCommandService.stop();
if (multicastService != null) {
logger.info("Shutting down multicast service...");
multicastService.stop();
}
logger.info("Shutting down connection manager...");
connectionManager.shutdown();
logger.info("Shutting down node engine...");
nodeEngine.shutdown(terminate);
if (securityContext != null) {
securityContext.destroy();
}
logger.finest("Destroying serialization service...");
serializationService.dispose();
nodeExtension.shutdown();
healthMonitor.stop();
}
private void mergeEnvironmentProvidedMemberMetadata() {
MemberImpl localMember = getLocalMember();
Map<String, Object> metadata = discoveryService.discoverLocalMetadata();
for (Map.Entry<String, Object> entry : metadata.entrySet()) {
Object value = entry.getValue();
if (value instanceof Byte) {
localMember.setByteAttribute(entry.getKey(), (Byte) value);
} else if (value instanceof Short) {
localMember.setShortAttribute(entry.getKey(), (Short) value);
} else if (value instanceof Integer) {
localMember.setIntAttribute(entry.getKey(), (Integer) value);
} else if (value instanceof Long) {
localMember.setLongAttribute(entry.getKey(), (Long) value);
} else if (value instanceof Float) {
localMember.setFloatAttribute(entry.getKey(), (Float) value);
} else if (value instanceof Double) {
localMember.setDoubleAttribute(entry.getKey(), (Double) value);
} else if (value instanceof Boolean) {
localMember.setBooleanAttribute(entry.getKey(), (Boolean) value);
} else {
localMember.setStringAttribute(entry.getKey(), value.toString());
}
}
}
private boolean setShuttingDown() {
if (shuttingDown.compareAndSet(false, true)) {
state = NodeState.PASSIVE;
return true;
}
return false;
}
/**
* Indicates that node is not shutting down or it has not already shut down
*
* @return true if node is not shutting down or it has not already shut down
*/
public boolean isRunning() {
return !shuttingDown.get();
}
private void waitIfAlreadyShuttingDown() {
if (!shuttingDown.get()) {
return;
}
logger.info("Node is already shutting down... Waiting for shutdown process to complete...");
while (state != NodeState.SHUT_DOWN && shuttingDown.get()) {
try {
Thread.sleep(THREAD_SLEEP_DURATION_MS);
} catch (InterruptedException e) {
logger.warning("Interrupted while waiting for shutdown!");
return;
}
}
if (state != NodeState.SHUT_DOWN) {
throw new IllegalStateException("Node failed to shutdown!");
}
}
public void changeNodeStateToActive() {
final ClusterState clusterState = clusterService.getClusterState();
if (clusterState == ClusterState.PASSIVE) {
throw new IllegalStateException("This method can be called only when cluster-state is not " + clusterState);
}
state = NodeState.ACTIVE;
}
public void changeNodeStateToPassive() {
final ClusterState clusterState = clusterService.getClusterState();
if (clusterState != ClusterState.PASSIVE) {
throw new IllegalStateException("This method can be called only when cluster-state is " + clusterState);
}
state = NodeState.PASSIVE;
}
/**
* Resets the internal cluster-state of the Node to be able to make it ready to join a new cluster.
* After this method is called,
* a new join process can be triggered by calling {@link #join()}.
* <p/>
* This method is called during merge process after a split-brain is detected.
*/
public void reset() {
state = NodeState.ACTIVE;
clusterService.resetJoinState();
joiner.reset();
}
public ILogger getLogger(String name) {
return loggingService.getLogger(name);
}
public ILogger getLogger(Class clazz) {
return loggingService.getLogger(clazz);
}
public HazelcastProperties getProperties() {
return properties;
}
public TextCommandService getTextCommandService() {
return textCommandService;
}
public ConnectionManager getConnectionManager() {
return connectionManager;
}
public ClassLoader getConfigClassLoader() {
return configClassLoader;
}
public NodeEngineImpl getNodeEngine() {
return nodeEngine;
}
public NodeExtension getNodeExtension() {
return nodeExtension;
}
public DiscoveryService getDiscoveryService() {
return discoveryService;
}
private enum ShutdownHookPolicy {
TERMINATE,
GRACEFUL
}
public class NodeShutdownHookThread extends Thread {
private final ShutdownHookPolicy policy;
NodeShutdownHookThread(String name, String policy) {
super(name);
this.policy = ShutdownHookPolicy.valueOf(policy);
}
@Override
public void run() {
try {
if (isRunning()) {
logger.info("Running shutdown hook... Current state: " + state);
switch (policy) {
case TERMINATE:
hazelcastInstance.getLifecycleService().terminate();
break;
case GRACEFUL:
hazelcastInstance.getLifecycleService().shutdown();
break;
default:
throw new IllegalArgumentException("Unimplemented shutdown hook policy: " + policy);
}
}
} catch (Exception e) {
logger.warning(e);
}
}
}
public SplitBrainJoinMessage createSplitBrainJoinMessage() {
MemberImpl localMember = getLocalMember();
boolean liteMember = localMember.isLiteMember();
Collection<Address> memberAddresses = clusterService.getMemberAddresses();
int dataMemberCount = clusterService.getSize(DATA_MEMBER_SELECTOR);
Version clusterVersion = clusterService.getClusterVersion();
int memberListVersion = clusterService.getMembershipManager().getMemberListVersion();
return new SplitBrainJoinMessage(Packet.VERSION, buildInfo.getBuildNumber(), version, address, localMember.getUuid(),
liteMember, createConfigCheck(), memberAddresses, dataMemberCount, clusterVersion, memberListVersion);
}
public JoinRequest createJoinRequest(boolean withCredentials) {
final Credentials credentials = (withCredentials && securityContext != null)
? securityContext.getCredentialsFactory().newCredentials() : null;
final Set<String> excludedMemberUuids = nodeExtension.getInternalHotRestartService().getExcludedMemberUuids();
MemberImpl localMember = getLocalMember();
return new JoinRequest(Packet.VERSION, buildInfo.getBuildNumber(), version, address,
localMember.getUuid(), localMember.isLiteMember(), createConfigCheck(), credentials,
localMember.getAttributes(), excludedMemberUuids);
}
public ConfigCheck createConfigCheck() {
String joinerType = joiner == null ? "" : joiner.getType();
return new ConfigCheck(config, joinerType);
}
public void join() {
if (clusterService.isJoined()) {
if (logger.isFinestEnabled()) {
logger.finest("Calling join on already joined node. ", new Exception("stacktrace"));
} else {
logger.warning("Calling join on already joined node. ");
}
return;
}
if (joiner == null) {
logger.warning("No join method is enabled! Starting standalone.");
ClusterJoinManager clusterJoinManager = clusterService.getClusterJoinManager();
clusterJoinManager.setThisMemberAsMaster();
return;
}
try {
clusterService.resetJoinState();
joiner.join();
} catch (Throwable e) {
logger.severe("Error while joining the cluster!", e);
}
if (!clusterService.isJoined()) {
long maxJoinTimeMillis = properties.getMillis(MAX_JOIN_SECONDS);
logger.severe("Could not join cluster in " + maxJoinTimeMillis + " ms. Shutting down now!");
shutdownNodeByFiringEvents(Node.this, true);
}
}
public Joiner getJoiner() {
return joiner;
}
Joiner createJoiner() {
JoinConfig join = config.getNetworkConfig().getJoin();
join.verify();
if (properties.getBoolean(DISCOVERY_SPI_ENABLED)) {
//TODO: Auto-Upgrade Multicast+AWS configuration!
logger.info("Activating Discovery SPI Joiner");
return new DiscoveryJoiner(this, discoveryService, properties.getBoolean(DISCOVERY_SPI_PUBLIC_IP_ENABLED));
} else {
if (join.getMulticastConfig().isEnabled() && multicastService != null) {
logger.info("Creating MulticastJoiner");
return new MulticastJoiner(this);
} else if (join.getTcpIpConfig().isEnabled()) {
logger.info("Creating TcpIpJoiner");
return new TcpIpJoiner(this);
} else if (join.getAwsConfig().isEnabled()) {
Class clazz;
try {
logger.info("Creating AWSJoiner");
clazz = Class.forName("com.hazelcast.cluster.impl.TcpIpJoinerOverAWS");
Constructor constructor = clazz.getConstructor(Node.class);
return (Joiner) constructor.newInstance(this);
} catch (Exception e) {
throw ExceptionUtil.rethrow(e);
}
}
}
return null;
}
public String getThisUuid() {
return clusterService.getThisUuid();
}
public Config getConfig() {
return config;
}
/**
* Returns the node state.
*
* @return current state of the node
*/
public NodeState getState() {
return state;
}
/**
* Returns the codebase version of the node.
*
* @return codebase version of the node
*/
public MemberVersion getVersion() {
return version;
}
public boolean isLiteMember() {
return getLocalMember().isLiteMember();
}
@Override
public String toString() {
return "Node[" + hazelcastInstance.getName() + "]";
}
public BuildInfo getBuildInfo() {
return buildInfo;
}
private Map<String, Object> findMemberAttributes(MemberAttributeConfig attributeConfig) {
Map<String, Object> attributes = new HashMap<String, Object>(attributeConfig.getAttributes());
Properties properties = System.getProperties();
for (String key : properties.stringPropertyNames()) {
if (key.startsWith("hazelcast.member.attribute.")) {
String shortKey = key.substring("hazelcast.member.attribute.".length());
String value = properties.getProperty(key);
attributes.put(shortKey, value);
}
}
return attributes;
}
}