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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2016-2024 Payara Foundation and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://github.com/payara/Payara/blob/main/LICENSE.txt
* See the License for the specific
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*
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* file and include the License file at glassfish/legal/LICENSE.txt.
*
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* exception as provided by the Payara Foundation in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
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package fish.payara.appserver.micro.services;
import java.io.Serializable;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.Callable;
import java.util.concurrent.Future;
import java.util.logging.Level;
import java.util.logging.Logger;
import jakarta.annotation.PostConstruct;
import jakarta.inject.Inject;
import com.sun.enterprise.deployment.Application;
import com.sun.enterprise.v3.services.impl.GrizzlyService;
import org.glassfish.api.StartupRunLevel;
import org.glassfish.api.admin.ServerEnvironment;
import org.glassfish.api.deployment.DeploymentContext;
import org.glassfish.api.event.EventListener;
import org.glassfish.api.event.EventTypes;
import org.glassfish.api.event.Events;
import org.glassfish.embeddable.CommandRunner;
import org.glassfish.grizzly.config.dom.NetworkListener;
import org.glassfish.hk2.api.ServiceLocator;
import org.glassfish.hk2.runlevel.RunLevel;
import org.glassfish.internal.api.ServerContext;
import org.glassfish.internal.data.ApplicationInfo;
import org.glassfish.internal.data.ApplicationRegistry;
import org.glassfish.internal.deployment.Deployment;
import org.jvnet.hk2.annotations.Contract;
import org.jvnet.hk2.annotations.Service;
import fish.payara.appserver.micro.services.command.AsAdminCallable;
import fish.payara.appserver.micro.services.command.ClusterCommandResultImpl;
import fish.payara.appserver.micro.services.data.ApplicationDescriptorImpl;
import fish.payara.appserver.micro.services.data.InstanceDescriptorImpl;
import fish.payara.micro.ClusterCommandResult;
import fish.payara.micro.PayaraInstance;
import fish.payara.micro.data.ApplicationDescriptor;
import fish.payara.micro.data.InstanceDescriptor;
import fish.payara.micro.event.CDIEventListener;
import fish.payara.micro.event.PayaraClusterListener;
import fish.payara.micro.event.PayaraClusteredCDIEvent;
import fish.payara.nucleus.cluster.PayaraCluster;
import fish.payara.nucleus.eventbus.ClusterMessage;
import fish.payara.nucleus.eventbus.MessageReceiver;
import fish.payara.nucleus.events.HazelcastEvents;
import fish.payara.nucleus.executorservice.PayaraExecutorService;
import fish.payara.nucleus.hazelcast.HazelcastCore;
import java.util.UUID;
import java.util.concurrent.TimeUnit;
import org.glassfish.grizzly.utils.Holder.LazyHolder;
import static org.glassfish.grizzly.utils.Holder.lazyHolder;
/**
* Internal Payara Service for describing instances
*
* @author steve
*/
@Service(name = "payara-instance")
@RunLevel(StartupRunLevel.VAL)
@Contract
public class PayaraInstanceImpl implements EventListener, MessageReceiver, PayaraInstance {
public static final String INSTANCE_STORE_NAME = "payara.instance.store";
public static final String INTERNAL_EVENTS_NAME = "payara.micro.cluster.event";
public static final String CDI_EVENTS_NAME = "payara.micro.cdi.event";
public static final String APPLICATIONS_STORE_NAME = "payara.micro.applications.store";
private static final String APP_UNIQUE_ID_PROP = "org.glassfish.ejb.container.application_unique_id";
private static final Logger logger = Logger.getLogger(PayaraInstanceImpl.class.getName());
@Inject
private ServiceLocator habitat;
@Inject
private PayaraCluster cluster;
@Inject
private ServerContext context;
@Inject
private Events events;
@Inject
private CommandRunner commandRunner;
private HashSet myListeners;
private HashSet myCDIListeners;
private UUID myCurrentID;
private LazyHolder descriptor = lazyHolder(this::initialiseInstanceDescriptor);
@Inject
private ServerEnvironment environment;
@Inject
private HazelcastCore hazelcast;
@Inject
private ApplicationRegistry appRegistry;
@Inject
private PayaraExecutorService executor;
@Override
public String getInstanceName() {
return descriptor.get().getInstanceName();
}
@Override
public void setInstanceName(String instanceName) {
descriptor.get().setInstanceName(instanceName);
}
@Override
public Map> runCallable(Collection memberUUIDS, Callable callable) {
return cluster.getExecService().runCallable(memberUUIDS, callable);
}
@Override
public Map> runCallable(Callable callable) {
return cluster.getExecService().runCallableAllMembers(callable);
}
@Override
public ClusterCommandResult executeLocalAsAdmin(String command, String... parameters) {
return new ClusterCommandResultImpl(commandRunner.run(command, parameters));
}
@Override
public Map> executeClusteredASAdmin(String command, String... parameters) {
AsAdminCallable callable = new AsAdminCallable(command, parameters);
Map> result = cluster.getExecService().runCallableAllMembers(callable);
return result;
}
@Override
public Map> executeClusteredASAdmin(Collection memberGUIDs, String command, String... parameters) {
AsAdminCallable callable = new AsAdminCallable(command, parameters);
Map> result = cluster.getExecService().runCallable(memberGUIDs, callable);
return result;
}
@Override
public void receiveMessage(ClusterMessage msg) {
if (msg.getPayload() instanceof PayaraInternalEvent) {
PayaraInternalEvent pie = PayaraInternalEvent.class.cast(msg.getPayload());
switch (pie.getMessageType()) {
case ADDED:
for (PayaraClusterListener myListener : myListeners) {
myListener.memberAdded(pie.getId());
}
break;
case REMOVED:
for (PayaraClusterListener myListener : myListeners) {
myListener.memberRemoved(pie.getId());
}
break;
}
} else if (msg.getPayload() instanceof PayaraClusteredCDIEventImpl) {
PayaraClusteredCDIEventImpl cast = PayaraClusteredCDIEventImpl.class.cast(msg.getPayload());
for (CDIEventListener myListener : myCDIListeners) {
if (!cast.isLoopBack() && cast.getInstanceDescriptor().getMemberUUID().equals(myCurrentID)) {
// ignore this message as it is a loopback
} else {
myListener.eventReceived(cast);
}
}
}
}
@PostConstruct
@SuppressWarnings("unchecked")
void postConstruct() {
events.register(this);
myListeners = new HashSet<>(1);
myCDIListeners = new HashSet<>(1);
}
/**
*
* @param event
*/
@Override
@SuppressWarnings({"unchecked"})
public void event(Event event) {
if (event.is(EventTypes.SERVER_READY)) {
PayaraInternalEvent pie = new PayaraInternalEvent(PayaraInternalEvent.MESSAGE.ADDED, descriptor.get());
ClusterMessage message = new ClusterMessage<>(pie);
this.cluster.getEventBus().publish(INTERNAL_EVENTS_NAME, message);
for (String appName : appRegistry.getAllApplicationNames()) {
descriptor.get().addApplication(new ApplicationDescriptorImpl(appRegistry.get(appName)));
}
cluster.getClusteredStore().set(INSTANCE_STORE_NAME, myCurrentID, descriptor.get());
executor.scheduleAtFixedRate(() -> {
descriptor.get().setLastHeartBeat(System.currentTimeMillis());
if (myCurrentID != null) {
cluster.getClusteredStore().set(INSTANCE_STORE_NAME, myCurrentID, descriptor.get());
}
}, 0, 5, TimeUnit.SECONDS);
} // Adds the application to the clustered register of deployed applications
else if (event.is(Deployment.APPLICATION_STARTED)) {
if (event.hook() != null && event.hook() instanceof ApplicationInfo) {
ApplicationInfo applicationInfo = (ApplicationInfo) event.hook();
descriptor.get().addApplication(new ApplicationDescriptorImpl(applicationInfo));
logger.log(Level.FINE, "App Loaded: {2}, Enabled: {0}, my ID: {1}", new Object[] { hazelcast.isEnabled(),
myCurrentID, applicationInfo.getName() });
cluster.getClusteredStore().set(INSTANCE_STORE_NAME, myCurrentID, descriptor.get());
}
}
// ensures the same application id is used when there is a deployment
// if the application id is in the cluster keyed by application name
else if (event.is(Deployment.APPLICATION_PREPARED)) {
if (event.hook() != null && event.hook() instanceof DeploymentContext) {
DeploymentContext deploymentContext = (DeploymentContext) event.hook();
Application app = deploymentContext.getModuleMetaData(Application.class);
if(app != null) {
Long appID = (Long) cluster.getClusteredStore().get(APPLICATIONS_STORE_NAME, app.getName());
if (appID != null) {
app.setUniqueId(appID);
deploymentContext.getAppProps().setProperty(APP_UNIQUE_ID_PROP, String.valueOf(appID));
} else {
cluster.getClusteredStore().set(APPLICATIONS_STORE_NAME, app.getName(), app.getUniqueId());
deploymentContext.getAppProps().setProperty(APP_UNIQUE_ID_PROP, String.valueOf(app.getUniqueId()));
}
}
}
}
// removes the application from the clustered registry of applications
else if (event.is(Deployment.APPLICATION_UNLOADED)) {
if (event.hook() != null && event.hook() instanceof ApplicationInfo) {
ApplicationInfo applicationInfo = (ApplicationInfo) event.hook();
descriptor.get().removeApplication(new ApplicationDescriptorImpl(applicationInfo));
cluster.getClusteredStore().set(INSTANCE_STORE_NAME, myCurrentID, descriptor.get());
}
} else if (event.is(HazelcastEvents.HAZELCAST_SHUTDOWN_STARTED)) {
// Set to null to help prevent the scheduled heartbeat task re-adding the descriptor we're removing here.
myCurrentID = null;
PayaraInternalEvent pie = new PayaraInternalEvent(PayaraInternalEvent.MESSAGE.REMOVED, descriptor.get());
ClusterMessage message = new ClusterMessage<>(pie);
this.cluster.getClusteredStore().remove(INSTANCE_STORE_NAME, myCurrentID);
this.cluster.getEventBus().publish(INTERNAL_EVENTS_NAME, message);
// Create a new lazy initialiser
descriptor = lazyHolder(this::initialiseInstanceDescriptor);
}
// When Hazelcast is bootstrapped, update the instance descriptor with any new information
if (event.is(HazelcastEvents.HAZELCAST_BOOTSTRAP_COMPLETE)) {
descriptor.get();
logger.log(Level.FINE, "Hz Bootstrap Complete, Enabled: {0}, my ID: {1}", new Object[] { hazelcast.isEnabled(), myCurrentID });
// remove listener first
cluster.getEventBus().removeMessageReceiver(INTERNAL_EVENTS_NAME, this);
cluster.getEventBus().removeMessageReceiver(CDI_EVENTS_NAME, this);
cluster.getEventBus().addMessageReceiver(INTERNAL_EVENTS_NAME, this);
cluster.getEventBus().addMessageReceiver(CDI_EVENTS_NAME, this);
}
// If the generated name had to be changed, update the instance descriptor with the new information
if (event.is(HazelcastEvents.HAZELCAST_GENERATED_NAME_CHANGE)) {
descriptor.get();
}
}
@Override
public Set getClusteredPayaras() {
Set members = cluster.getClusterMembers();
HashSet result = new HashSet<>(members.size());
for (UUID member : members) {
InstanceDescriptor id = (InstanceDescriptor) cluster.getClusteredStore().get(INSTANCE_STORE_NAME, member);
if (id != null) {
result.add(id);
}
}
return result;
}
@Override
public void publishCDIEvent(PayaraClusteredCDIEvent event) {
if (event.getInstanceDescriptor() == null) {
event.setId(descriptor.get());
}
ClusterMessage message = new ClusterMessage<>(event);
cluster.getEventBus().publish(CDI_EVENTS_NAME, message);
}
@Override
public void removeBootstrapListener(PayaraClusterListener listener) {
myListeners.remove(listener);
}
@Override
public void addBootstrapListener(PayaraClusterListener listener) {
myListeners.add(listener);
}
@Override
public void removeCDIListener(CDIEventListener listener) {
myCDIListeners.remove(listener);
}
@Override
public void addCDIListener(CDIEventListener listener) {
myCDIListeners.add(listener);
}
@Override
public InstanceDescriptor getLocalDescriptor() {
return descriptor.get();
}
@Override
public InstanceDescriptorImpl getDescriptor(UUID member) {
InstanceDescriptorImpl result = null;
if (cluster.isEnabled()) {
result = (InstanceDescriptorImpl) cluster.getClusteredStore().get(INSTANCE_STORE_NAME, member);
}
return result;
}
private InstanceDescriptorImpl initialiseInstanceDescriptor() {
String instanceName = "payara-micro";
String instanceGroup = "no-cluster";
boolean liteMember = false;
int hazelcastPort = 5900;
InetAddress hostname = null;
// Get the Hazelcast specific information
if (hazelcast.isEnabled()) {
instanceName = hazelcast.getMemberName();
instanceGroup = hazelcast.getMemberGroup();
myCurrentID = hazelcast.getUUID();
liteMember = hazelcast.isLite();
hazelcastPort = hazelcast.getPort();
hostname = hazelcast.getInstance().getCluster().getLocalMember().getSocketAddress().getAddress();
}
// Get this instance's runtime type
String instanceType = environment.getRuntimeType().toString();
// Get the ports in use by this instance from its network listener configs
List ports = new ArrayList<>();
List sslPorts = new ArrayList<>();
int adminPort = 0;
for (NetworkListener networkListener :
context.getConfigBean().getConfig().getNetworkConfig().getNetworkListeners().getNetworkListener()) {
// Try and get the port. First get the port in the domain xml, then attempt to get the dynamic config port.
int port = Integer.parseInt(networkListener.getPort());
try {
port = habitat.getService(GrizzlyService.class).getRealPort(networkListener);
} catch (Exception ex) {
logger.log(Level.WARNING, "Failed to get running Grizzly listener.", ex);
}
// Skip the network listener if it isn't enabled
if (Boolean.parseBoolean(networkListener.getEnabled())) {
// Check if this listener is using HTTP or HTTPS
if (networkListener.findProtocol().getSecurityEnabled().equals("false")) {
// Check if this listener is the admin listener
if (networkListener.getName().equals(
context.getConfigBean().getConfig().getAdminListener().getName())) {
// Micro instances can use the admin listener as both an admin and HTTP port
if (instanceType.equals("MICRO")) {
ports.add(port);
}
adminPort = port;
} else {
// If this listener isn't the admin listener, it must be an HTTP listener
ports.add(port);
}
} else if (networkListener.findProtocol().getSecurityEnabled().equals("true")) {
if (networkListener.getName().equals(
context.getConfigBean().getConfig().getAdminListener().getName())) {
// Micro instances can use the admin listener as both an admin and HTTPS port
if (instanceType.equals("MICRO")) {
ports.add(port);
}
adminPort = port;
} else {
// If this listener isn't the admin listener, it must be an HTTPS listener
sslPorts.add(port);
}
}
}
}
// Initialise the instance descriptor and set all of its attributes
try {
InstanceDescriptorImpl instanceDescriptor = new InstanceDescriptorImpl(myCurrentID);
// If Hazelcast is being rebooted dynamically, we don't want to lose the already registered applications
Collection deployedApplications = instanceDescriptor.getDeployedApplications();
instanceDescriptor.setInstanceName(instanceName);
instanceDescriptor.setInstanceGroup(instanceGroup);
for (int port : ports) {
instanceDescriptor.addHttpPort(port);
}
for (int sslPort : sslPorts) {
instanceDescriptor.addHttpsPort(sslPort);
}
instanceDescriptor.setAdminPort(adminPort);
instanceDescriptor.setHazelcastPort(hazelcastPort);
instanceDescriptor.setLiteMember(liteMember);
instanceDescriptor.setInstanceType(instanceType);
if (hostname != null) {
instanceDescriptor.setHostName(hostname);
}
// If there were some deployed applications from the previous instance descriptor, register them with the new
// one
if (!deployedApplications.isEmpty()) {
for (ApplicationDescriptor application : deployedApplications) {
instanceDescriptor.addApplication(application);
}
}
// Register the instance descriptor to the cluster if it's enabled
if (cluster.isEnabled()) {
cluster.getClusteredStore().set(INSTANCE_STORE_NAME, myCurrentID, instanceDescriptor);
}
return instanceDescriptor;
} catch (UnknownHostException ex) {
throw new RuntimeException(ex);
}
}
/**
* Checks whether or not this instance is in a Hazelcast cluster
* @return true if this instance is in a Hazelcast cluster
*/
@Override
public boolean isClustered() {
return cluster.isEnabled();
}
}
