public void Destroy()
{
lock (this) {
if (_runtimeEnvironment != null) {
Log.Info("Destroying runtime URI '" + URI + "'");
// first invoke listeners
foreach (var listener in _serviceListeners) {
try {
listener.OnEPRuntimeDestroyRequested(this);
}
catch (Exception ex) {
Log.Error("Runtime exception caught during an onEPRuntimeDestroyRequested callback:" + ex.Message, ex);
}
}
if (_configLastProvided.Runtime.MetricsReporting.IsRuntimeMetrics) {
DestroyEngineMetrics(_runtimeEnvironment.Services.RuntimeURI);
}
ServiceStatusProvider?.Set(false);
_runtimeEnvironment.StageService.Destroy();
// assign null value
var runtimeToDestroy = _runtimeEnvironment;
runtimeToDestroy.Services.TimerService.StopInternalClock(false);
// plugin-loaders - destroy in opposite order
var pluginLoaders = runtimeToDestroy.Services.ConfigSnapshot.Runtime.PluginLoaders;
if (!pluginLoaders.IsEmpty()) {
var reversed = new List<ConfigurationRuntimePluginLoader>(pluginLoaders);
reversed.Reverse();
foreach (var config in reversed) {
PluginLoader plugin;
try {
plugin = (PluginLoader) runtimeToDestroy.Services.RuntimeEnvContext.Lookup("plugin-loader/" + config.LoaderName);
plugin.Dispose();
}
catch (Exception e) {
Log.Error("Error destroying plug-in loader: " + config.LoaderName, e);
}
}
}
runtimeToDestroy.Services.ThreadingService.Dispose();
// assign null - making EPRuntime and EPAdministrator unobtainable
_runtimeEnvironment = null;
runtimeToDestroy.StageService.Clear();
runtimeToDestroy.Runtime.Destroy();
runtimeToDestroy.DeploymentService.Destroy();
runtimeToDestroy.Services.Destroy();
_runtimes.Remove(URI);
runtimeToDestroy.Services.Initialize();
}
}
}
/// <summary>
/// Performs the initialization.
/// </summary>
/// <param name="startTime">optional start time</param>
protected void DoInitialize(long? startTime)
{
Log.Info("Initializing runtime URI '" + URI + "' version " + RuntimeVersion.RUNTIME_VERSION);
// Retain config-at-initialization since config-last-provided can be set to new values and "initialize" can be called
_configAtInitialization = _configLastProvided;
// Verify settings
if (_configLastProvided.Runtime.Threading.IsInternalTimerEnabled &&
_configLastProvided.Common.TimeSource.TimeUnit != TimeUnit.MILLISECONDS) {
throw new ConfigurationException("Internal timer requires millisecond time resolution");
}
// This setting applies to all runtimes in a given VM
ExecutionPathDebugLog.IsDebugEnabled = _configLastProvided.Runtime.Logging.IsEnableExecutionDebug;
ExecutionPathDebugLog.IsTimerDebugEnabled = _configLastProvided.Runtime.Logging.IsEnableTimerDebug;
// This setting applies to all runtimes in a given VM
AuditPath.AuditPattern = _configLastProvided.Runtime.Logging.AuditPattern;
if (_runtimeEnvironment != null) {
if (ServiceStatusProvider != null) {
ServiceStatusProvider.Set(false);
}
_runtimeEnvironment.Services.TimerService.StopInternalClock(false);
if (_configLastProvided.Runtime.MetricsReporting.IsRuntimeMetrics) {
DestroyEngineMetrics(_runtimeEnvironment.Services.RuntimeURI);
}
_runtimeEnvironment.Runtime.Initialize();
_runtimeEnvironment.Services.Destroy();
}
ServiceStatusProvider = new AtomicBoolean(true);
// Make EP services context factory
var epServicesContextFactoryClassName = _configLastProvided.Runtime.EPServicesContextFactoryClassName;
EPServicesContextFactory epServicesContextFactory;
if (epServicesContextFactoryClassName == null) {
// Check system properties
epServicesContextFactoryClassName = Environment.GetEnvironmentVariable("ESPER_EPSERVICE_CONTEXT_FACTORY_CLASS");
}
if (epServicesContextFactoryClassName == null) {
epServicesContextFactory = new EPServicesContextFactoryDefault(Container);
}
else {
Type clazz;
try {
clazz = TransientConfigurationResolver.ResolveClassForNameProvider(_configLastProvided.Common.TransientConfiguration)
.ClassForName(epServicesContextFactoryClassName);
}
catch (TypeLoadException) {
throw new ConfigurationException("Class '" + epServicesContextFactoryClassName + "' cannot be loaded");
}
object obj;
try {
obj = TypeHelper.Instantiate(clazz);
}
catch (Exception) {
throw new ConfigurationException("Class '" + clazz + "' cannot be instantiated");
}
epServicesContextFactory = (EPServicesContextFactory) obj;
}
EPServicesContext services;
try {
services = epServicesContextFactory.CreateServicesContext(this, _configLastProvided);
}
catch (EPException ex) {
throw new ConfigurationException("Failed runtime startup: " + ex.Message, ex);
//throw;
}
catch (Exception ex) {
throw new ConfigurationException("Failed runtime startup: " + ex.Message, ex);
}
// new runtime
EPEventServiceImpl eventService = epServicesContextFactory.CreateEPRuntime(services, ServiceStatusProvider);
eventService.InternalEventRouter = services.InternalEventRouter;
services.InternalEventRouteDest = eventService;
// set current time, if applicable
if (startTime != null) {
services.SchedulingService.Time = startTime.Value;
}
// Configure services to use the new runtime
services.TimerService.Callback = eventService;
// New services
EPDeploymentServiceSPI deploymentService = new EPDeploymentServiceImpl(services, this);
var eventTypeService = new EPEventTypeServiceImpl(services);
EPContextPartitionService contextPartitionService = new EPContextPartitionServiceImpl(services);
EPVariableService variableService = new EPVariableServiceImpl(services);
EPMetricsService metricsService = new EPMetricsServiceImpl(services);
EPFireAndForgetService fireAndForgetService = new EpFireAndForgetServiceImpl(services, ServiceStatusProvider);
EPStageServiceSPI stageService = new EPStageServiceImpl(services, ServiceStatusProvider);
// Build runtime environment
_runtimeEnvironment = new EPRuntimeEnv(
services,
eventService,
deploymentService,
eventTypeService,
contextPartitionService,
variableService,
metricsService,
fireAndForgetService,
stageService);
// Stage Recovery
var stageIterator = services.StageRecoveryService.StagesIterate();
while (stageIterator.MoveNext()) {
var entry = stageIterator.Current;
long currentTimeStage;
if (services.EpServicesHA.CurrentTimeAsRecovered == null) {
currentTimeStage = services.SchedulingService.Time;
} else if (!services.EpServicesHA.CurrentTimeStageAsRecovered.TryGetValue(entry.Value, out currentTimeStage)) {
currentTimeStage = services.SchedulingService.Time;
}
stageService.RecoverStage(entry.Key, entry.Value, currentTimeStage);
}
// Deployment Recovery
var deploymentIterator = services.DeploymentRecoveryService.Deployments();
ISet<EventType> protectedVisibleTypes = new LinkedHashSet<EventType>();
while (deploymentIterator.MoveNext()) {
var entry = deploymentIterator.Current;
var deploymentId = entry.Key;
StatementUserObjectRuntimeOption userObjectResolver = new ProxyStatementUserObjectRuntimeOption {
ProcGetUserObject = env => entry.Value.UserObjectsRuntime.Get(env.StatementId)
};
StatementNameRuntimeOption statementNameResolver =
env => entry.Value.StatementNamesWhenProvidedByAPI.Get(env.StatementId);
StatementSubstitutionParameterOption substitutionParameterResolver = env => {
var param = entry.Value.SubstitutionParameters.Get(env.StatementId);
if (param == null) {
return;
}
if (env.SubstitutionParameterNames != null) {
foreach (var name in env.SubstitutionParameterNames) {
env.SetObject(name.Key, param.Get(name.Value));
}
}
else {
for (var i = 0; i < env.SubstitutionParameterTypes.Length; i++) {
env.SetObject(i + 1, param.Get(i + 1));
}
}
};
DeploymentInternal deployerResult;
try {
deployerResult = Deployer.DeployRecover(
deploymentId,
entry.Value.StatementIdFirstStatement,
entry.Value.Compiled,
statementNameResolver,
userObjectResolver,
substitutionParameterResolver,
null,
this);
}
catch (EPDeployException ex) {
throw new EPException(ex.Message, ex);
}
foreach (var eventType in deployerResult.DeploymentTypes.Values) {
if (eventType.Metadata.BusModifier == EventTypeBusModifier.BUS ||
eventType.Metadata.TypeClass == EventTypeTypeClass.NAMED_WINDOW ||
eventType.Metadata.TypeClass == EventTypeTypeClass.STREAM) {
protectedVisibleTypes.Add(eventType);
}
}
// handle staged deployments
var stageUri = services.StageRecoveryService.DeploymentGetStage(deploymentId);
if (stageUri != null) {
stageService.RecoverDeployment(stageUri, deployerResult);
}
}
// Event Handler Recovery
var eventHandlers = services.ListenerRecoveryService.Listeners;
while (eventHandlers.MoveNext()) {
var deployment = eventHandlers.Current;
var epStatement = services.StatementLifecycleService.GetStatementById(deployment.Key);
epStatement.RecoveryUpdateEventHandlers(new EPStatementListenerSet(deployment.Value));
}
// Filter service init
ISet<EventType> filterServiceTypes = new LinkedHashSet<EventType>(services.EventTypeRepositoryBus.AllTypes);
filterServiceTypes.AddAll(protectedVisibleTypes);
Supplier<ICollection<EventType>> availableTypes = () => filterServiceTypes;
services.FilterServiceSPI.Init(availableTypes);
// Schedule service init
services.SchedulingServiceSPI.Init();
// Stage services init
stageService.RecoveredStageInitialize(availableTypes);
// Start clocking
if (_configLastProvided.Runtime.Threading.IsInternalTimerEnabled) {
services.TimerService.StartInternalClock();
}
// Load and initialize adapter loader classes
LoadAdapters(services);
// Initialize extension services
if (services.RuntimeExtensionServices != null) {
((RuntimeExtensionServicesSPI) services.RuntimeExtensionServices).Init(services, eventService, deploymentService, stageService);
}
// Start metrics reporting, if any
if (_configLastProvided.Runtime.MetricsReporting.IsEnableMetricsReporting) {
services.MetricReportingService.SetContext(services.FilterService, services.SchedulingService, eventService);
}
// Start runtimes metrics report
if (_configLastProvided.Runtime.MetricsReporting.IsRuntimeMetrics) {
StartEngineMetrics(services, eventService);
}
// call initialize listeners
foreach (var listener in _serviceListeners) {
try {
listener.OnEPRuntimeInitialized(this);
}
catch (Exception ex) {
Log.Error("Runtime exception caught during an onEPRuntimeInitialized callback:" + ex.Message, ex);
}
}
}
