/**
* Constructs the auto import service.
*
* @param configSnapshot config info
* @return service
*/
protected static EngineImportService makeEngineImportService(
ConfigurationInformation configSnapshot) {
ConfigurationEngineDefaults.Expression expression =
configSnapshot.getEngineDefaults().getExpression();
EngineImportServiceImpl engineImportService =
new EngineImportServiceImpl(
expression.isExtendedAggregation(),
expression.isUdfCache(),
expression.isDuckTyping(),
configSnapshot.getEngineDefaults().getLanguage().isSortUsingCollator(),
configSnapshot.getEngineDefaults().getExpression().getMathContext(),
configSnapshot.getEngineDefaults().getExpression().getTimeZone(),
configSnapshot.getEngineDefaults().getExecution().getThreadingProfile());
engineImportService.addMethodRefs(configSnapshot.getMethodInvocationReferences());
// Add auto-imports
try {
for (String importName : configSnapshot.getImports()) {
engineImportService.addImport(importName);
}
for (ConfigurationPlugInAggregationFunction config :
configSnapshot.getPlugInAggregationFunctions()) {
engineImportService.addAggregation(config.getName(), config);
}
for (ConfigurationPlugInAggregationMultiFunction config :
configSnapshot.getPlugInAggregationMultiFunctions()) {
engineImportService.addAggregationMultiFunction(config);
}
for (ConfigurationPlugInSingleRowFunction config :
configSnapshot.getPlugInSingleRowFunctions()) {
engineImportService.addSingleRow(
config.getName(),
config.getFunctionClassName(),
config.getFunctionMethodName(),
config.getValueCache(),
config.getFilterOptimizable(),
config.isRethrowExceptions());
}
} catch (EngineImportException ex) {
throw new ConfigurationException("Error configuring engine: " + ex.getMessage(), ex);
}
return engineImportService;
}
/**
* Makes the time source provider.
*
* @param configSnapshot the configuration
* @return time source provider
*/
protected static TimeSourceService makeTimeSource(ConfigurationInformation configSnapshot) {
if (configSnapshot.getEngineDefaults().getTimeSource().getTimeSourceType()
== ConfigurationEngineDefaults.TimeSourceType.NANO) {
// this is a static variable to keep overhead down for getting a current time
TimeSourceServiceImpl.IS_SYSTEM_CURRENT_TIME = false;
}
return new TimeSourceServiceImpl();
}
public EPServicesContext createServicesContext(
EPServiceProvider epServiceProvider, ConfigurationInformation configSnapshot) {
// JNDI context for binding resources
EngineEnvContext jndiContext = new EngineEnvContext();
EventTypeIdGenerator eventTypeIdGenerator;
if (configSnapshot.getEngineDefaults().getAlternativeContext() == null
|| configSnapshot
.getEngineDefaults()
.getAlternativeContext()
.getEventTypeIdGeneratorFactory()
== null) {
eventTypeIdGenerator = new EventTypeIdGeneratorImpl();
} else {
EventTypeIdGeneratorFactory eventTypeIdGeneratorFactory =
(EventTypeIdGeneratorFactory)
JavaClassHelper.instantiate(
EventTypeIdGeneratorFactory.class,
configSnapshot
.getEngineDefaults()
.getAlternativeContext()
.getEventTypeIdGeneratorFactory());
eventTypeIdGenerator =
eventTypeIdGeneratorFactory.create(
new EventTypeIdGeneratorContext(epServiceProvider.getURI()));
}
// Make services that depend on snapshot config entries
EventAdapterServiceImpl eventAdapterService =
new EventAdapterServiceImpl(
eventTypeIdGenerator,
configSnapshot.getEngineDefaults().getEventMeta().getAnonymousCacheSize());
init(eventAdapterService, configSnapshot);
// New read-write lock for concurrent event processing
ManagedReadWriteLock eventProcessingRWLock = new ManagedReadWriteLock("EventProcLock", false);
TimeSourceService timeSourceService = makeTimeSource(configSnapshot);
SchedulingServiceSPI schedulingService =
SchedulingServiceProvider.newService(timeSourceService);
SchedulingMgmtService schedulingMgmtService = new SchedulingMgmtServiceImpl();
EngineImportService engineImportService = makeEngineImportService(configSnapshot);
EngineSettingsService engineSettingsService =
new EngineSettingsService(
configSnapshot.getEngineDefaults(), configSnapshot.getPlugInEventTypeResolutionURIs());
DatabaseConfigService databaseConfigService =
makeDatabaseRefService(configSnapshot, schedulingService, schedulingMgmtService);
PluggableObjectCollection plugInViews = new PluggableObjectCollection();
plugInViews.addViews(
configSnapshot.getPlugInViews(), configSnapshot.getPlugInVirtualDataWindows());
PluggableObjectCollection plugInPatternObj = new PluggableObjectCollection();
plugInPatternObj.addPatternObjects(configSnapshot.getPlugInPatternObjects());
// exception handling
ExceptionHandlingService exceptionHandlingService =
initExceptionHandling(
epServiceProvider.getURI(),
configSnapshot.getEngineDefaults().getExceptionHandling(),
configSnapshot.getEngineDefaults().getConditionHandling());
// Statement context factory
Class systemVirtualDWViewFactory = null;
if (configSnapshot.getEngineDefaults().getAlternativeContext().getVirtualDataWindowViewFactory()
!= null) {
try {
systemVirtualDWViewFactory =
Class.forName(
configSnapshot
.getEngineDefaults()
.getAlternativeContext()
.getVirtualDataWindowViewFactory());
if (!JavaClassHelper.isImplementsInterface(
systemVirtualDWViewFactory, VirtualDataWindowFactory.class)) {
throw new ConfigurationException(
"Class "
+ systemVirtualDWViewFactory.getName()
+ " does not implement the interface "
+ VirtualDataWindowFactory.class.getName());
}
} catch (ClassNotFoundException e) {
throw new ConfigurationException("Failed to look up class " + systemVirtualDWViewFactory);
}
}
StatementContextFactory statementContextFactory =
new StatementContextFactoryDefault(
plugInViews, plugInPatternObj, systemVirtualDWViewFactory);
long msecTimerResolution =
configSnapshot.getEngineDefaults().getThreading().getInternalTimerMsecResolution();
if (msecTimerResolution <= 0) {
throw new ConfigurationException(
"Timer resolution configuration not set to a valid value, expecting a non-zero value");
}
TimerService timerService =
new TimerServiceImpl(epServiceProvider.getURI(), msecTimerResolution);
VariableService variableService =
new VariableServiceImpl(
configSnapshot.getEngineDefaults().getVariables().getMsecVersionRelease(),
schedulingService,
eventAdapterService,
null);
initVariables(variableService, configSnapshot.getVariables(), engineImportService);
TableService tableService = new TableServiceImpl();
StatementLockFactory statementLockFactory =
new StatementLockFactoryImpl(
configSnapshot.getEngineDefaults().getExecution().isFairlock(),
configSnapshot.getEngineDefaults().getExecution().isDisableLocking());
StreamFactoryService streamFactoryService =
StreamFactoryServiceProvider.newService(
epServiceProvider.getURI(),
configSnapshot.getEngineDefaults().getViewResources().isShareViews());
FilterServiceSPI filterService =
FilterServiceProvider.newService(
configSnapshot.getEngineDefaults().getExecution().getFilterServiceProfile(),
configSnapshot.getEngineDefaults().getExecution().isAllowIsolatedService());
MetricReportingServiceImpl metricsReporting =
new MetricReportingServiceImpl(
configSnapshot.getEngineDefaults().getMetricsReporting(), epServiceProvider.getURI());
NamedWindowService namedWindowService =
new NamedWindowServiceImpl(
schedulingService,
variableService,
tableService,
engineSettingsService.getEngineSettings().getExecution().isPrioritized(),
eventProcessingRWLock,
exceptionHandlingService,
configSnapshot.getEngineDefaults().getLogging().isEnableQueryPlan(),
metricsReporting);
ValueAddEventService valueAddEventService = new ValueAddEventServiceImpl();
valueAddEventService.init(
configSnapshot.getRevisionEventTypes(),
configSnapshot.getVariantStreams(),
eventAdapterService,
eventTypeIdGenerator);
StatementEventTypeRef statementEventTypeRef = new StatementEventTypeRefImpl();
StatementVariableRef statementVariableRef =
new StatementVariableRefImpl(variableService, tableService);
ThreadingService threadingService =
new ThreadingServiceImpl(configSnapshot.getEngineDefaults().getThreading());
InternalEventRouterImpl internalEventRouterImpl = new InternalEventRouterImpl();
StatementIsolationServiceImpl statementIsolationService = new StatementIsolationServiceImpl();
DeploymentStateService deploymentStateService = new DeploymentStateServiceImpl();
StatementMetadataFactory stmtMetadataFactory;
if (configSnapshot.getEngineDefaults().getAlternativeContext().getStatementMetadataFactory()
== null) {
stmtMetadataFactory = new StatementMetadataFactoryDefault();
} else {
stmtMetadataFactory =
(StatementMetadataFactory)
JavaClassHelper.instantiate(
StatementMetadataFactory.class,
configSnapshot
.getEngineDefaults()
.getAlternativeContext()
.getStatementMetadataFactory());
}
ContextManagementService contextManagementService = new ContextManagementServiceImpl();
SchedulableAgentInstanceDirectory schedulableAgentInstanceDirectory =
null; // not required for Non-HA.
PatternSubexpressionPoolEngineSvc patternSubexpressionPoolSvc = null;
if (configSnapshot.getEngineDefaults().getPatterns().getMaxSubexpressions() != null) {
patternSubexpressionPoolSvc =
new PatternSubexpressionPoolEngineSvc(
configSnapshot.getEngineDefaults().getPatterns().getMaxSubexpressions(),
configSnapshot.getEngineDefaults().getPatterns().isMaxSubexpressionPreventStart());
}
MatchRecognizeStatePoolEngineSvc matchRecognizeStatePoolEngineSvc = null;
if (configSnapshot.getEngineDefaults().getMatchRecognize().getMaxStates() != null) {
matchRecognizeStatePoolEngineSvc =
new MatchRecognizeStatePoolEngineSvc(
configSnapshot.getEngineDefaults().getMatchRecognize().getMaxStates(),
configSnapshot.getEngineDefaults().getMatchRecognize().isMaxStatesPreventStart());
}
// New services context
EPServicesContext services =
new EPServicesContext(
epServiceProvider.getURI(),
schedulingService,
eventAdapterService,
engineImportService,
engineSettingsService,
databaseConfigService,
plugInViews,
statementLockFactory,
eventProcessingRWLock,
null,
jndiContext,
statementContextFactory,
plugInPatternObj,
timerService,
filterService,
streamFactoryService,
namedWindowService,
variableService,
tableService,
timeSourceService,
valueAddEventService,
metricsReporting,
statementEventTypeRef,
statementVariableRef,
configSnapshot,
threadingService,
internalEventRouterImpl,
statementIsolationService,
schedulingMgmtService,
deploymentStateService,
exceptionHandlingService,
new PatternNodeFactoryImpl(),
eventTypeIdGenerator,
stmtMetadataFactory,
contextManagementService,
schedulableAgentInstanceDirectory,
patternSubexpressionPoolSvc,
matchRecognizeStatePoolEngineSvc,
new DataFlowServiceImpl(epServiceProvider, new DataFlowConfigurationStateServiceImpl()),
new ExprDeclaredServiceImpl(),
new ContextControllerFactoryFactorySvcImpl(),
new ContextManagerFactoryServiceImpl(),
new EPStatementFactoryDefault(),
new RegexHandlerFactoryDefault(),
new ViewableActivatorFactoryDefault() {});
// Engine services subset available to statements
statementContextFactory.setStmtEngineServices(services);
// Circular dependency
StatementLifecycleSvc statementLifecycleSvc =
new StatementLifecycleSvcImpl(epServiceProvider, services);
services.setStatementLifecycleSvc(statementLifecycleSvc);
// Observers to statement events
statementLifecycleSvc.addObserver(metricsReporting);
// Circular dependency
statementIsolationService.setEpServicesContext(services);
return services;
}
/**
* Initialize event adapter service for config snapshot.
*
* @param eventAdapterService is events adapter
* @param configSnapshot is the config snapshot
*/
protected static void init(
EventAdapterService eventAdapterService, ConfigurationInformation configSnapshot) {
// Extract legacy event type definitions for each event type name, if supplied.
//
// We supply this information as setup information to the event adapter service
// to allow discovery of superclasses and interfaces during event type construction for bean
// events,
// such that superclasses and interfaces can use the legacy type definitions.
Map<String, ConfigurationEventTypeLegacy> classLegacyInfo =
new HashMap<String, ConfigurationEventTypeLegacy>();
for (Map.Entry<String, String> entry : configSnapshot.getEventTypeNames().entrySet()) {
String typeName = entry.getKey();
String className = entry.getValue();
ConfigurationEventTypeLegacy legacyDef = configSnapshot.getEventTypesLegacy().get(typeName);
if (legacyDef != null) {
classLegacyInfo.put(className, legacyDef);
}
}
eventAdapterService.setClassLegacyConfigs(classLegacyInfo);
eventAdapterService.setDefaultPropertyResolutionStyle(
configSnapshot.getEngineDefaults().getEventMeta().getClassPropertyResolutionStyle());
eventAdapterService.setDefaultAccessorStyle(
configSnapshot.getEngineDefaults().getEventMeta().getDefaultAccessorStyle());
for (String javaPackage : configSnapshot.getEventTypeAutoNamePackages()) {
eventAdapterService.addAutoNamePackage(javaPackage);
}
// Add from the configuration the Java event class names
Map<String, String> javaClassNames = configSnapshot.getEventTypeNames();
for (Map.Entry<String, String> entry : javaClassNames.entrySet()) {
// Add Java class
try {
String typeName = entry.getKey();
eventAdapterService.addBeanType(typeName, entry.getValue(), false, true, true, true);
} catch (EventAdapterException ex) {
throw new ConfigurationException("Error configuring engine: " + ex.getMessage(), ex);
}
}
// Add from the configuration the XML DOM names and type def
Map<String, ConfigurationEventTypeXMLDOM> xmlDOMNames = configSnapshot.getEventTypesXMLDOM();
for (Map.Entry<String, ConfigurationEventTypeXMLDOM> entry : xmlDOMNames.entrySet()) {
SchemaModel schemaModel = null;
if ((entry.getValue().getSchemaResource() != null)
|| (entry.getValue().getSchemaText() != null)) {
try {
schemaModel =
XSDSchemaMapper.loadAndMap(
entry.getValue().getSchemaResource(), entry.getValue().getSchemaText(), 2);
} catch (Exception ex) {
throw new ConfigurationException(ex.getMessage(), ex);
}
}
// Add XML DOM type
try {
eventAdapterService.addXMLDOMType(entry.getKey(), entry.getValue(), schemaModel, true);
} catch (EventAdapterException ex) {
throw new ConfigurationException("Error configuring engine: " + ex.getMessage(), ex);
}
}
// Add maps in dependency order such that supertypes are added before subtypes
Set<String> dependentMapOrder;
try {
Map<String, Set<String>> typesReferences =
toTypesReferences(configSnapshot.getMapTypeConfigurations());
dependentMapOrder = GraphUtil.getTopDownOrder(typesReferences);
} catch (GraphCircularDependencyException e) {
throw new ConfigurationException(
"Error configuring engine, dependency graph between map type names is circular: "
+ e.getMessage(),
e);
}
Map<String, Properties> mapNames = configSnapshot.getEventTypesMapEvents();
Map<String, Map<String, Object>> nestableMapNames =
configSnapshot.getEventTypesNestableMapEvents();
dependentMapOrder.addAll(mapNames.keySet());
dependentMapOrder.addAll(nestableMapNames.keySet());
try {
for (String mapName : dependentMapOrder) {
ConfigurationEventTypeMap mapConfig =
configSnapshot.getMapTypeConfigurations().get(mapName);
Properties propertiesUnnested = mapNames.get(mapName);
if (propertiesUnnested != null) {
Map<String, Object> propertyTypes = createPropertyTypes(propertiesUnnested);
Map<String, Object> propertyTypesCompiled =
EventTypeUtility.compileMapTypeProperties(propertyTypes, eventAdapterService);
eventAdapterService.addNestableMapType(
mapName, propertyTypesCompiled, mapConfig, true, true, true, false, false);
}
Map<String, Object> propertiesNestable = nestableMapNames.get(mapName);
if (propertiesNestable != null) {
Map<String, Object> propertiesNestableCompiled =
EventTypeUtility.compileMapTypeProperties(propertiesNestable, eventAdapterService);
eventAdapterService.addNestableMapType(
mapName, propertiesNestableCompiled, mapConfig, true, true, true, false, false);
}
}
} catch (EventAdapterException ex) {
throw new ConfigurationException("Error configuring engine: " + ex.getMessage(), ex);
}
// Add object-array in dependency order such that supertypes are added before subtypes
Set<String> dependentObjectArrayOrder;
try {
Map<String, Set<String>> typesReferences =
toTypesReferences(configSnapshot.getObjectArrayTypeConfigurations());
dependentObjectArrayOrder = GraphUtil.getTopDownOrder(typesReferences);
} catch (GraphCircularDependencyException e) {
throw new ConfigurationException(
"Error configuring engine, dependency graph between object array type names is circular: "
+ e.getMessage(),
e);
}
Map<String, Map<String, Object>> nestableObjectArrayNames =
configSnapshot.getEventTypesNestableObjectArrayEvents();
dependentObjectArrayOrder.addAll(nestableObjectArrayNames.keySet());
try {
for (String objectArrayName : dependentObjectArrayOrder) {
ConfigurationEventTypeObjectArray objectArrayConfig =
configSnapshot.getObjectArrayTypeConfigurations().get(objectArrayName);
Map<String, Object> propertyTypes = nestableObjectArrayNames.get(objectArrayName);
propertyTypes = resolveClassesForStringPropertyTypes(propertyTypes);
Map<String, Object> propertyTypesCompiled =
EventTypeUtility.compileMapTypeProperties(propertyTypes, eventAdapterService);
eventAdapterService.addNestableObjectArrayType(
objectArrayName,
propertyTypesCompiled,
objectArrayConfig,
true,
true,
true,
false,
false,
false,
null);
}
} catch (EventAdapterException ex) {
throw new ConfigurationException("Error configuring engine: " + ex.getMessage(), ex);
}
// Add plug-in event representations
Map<URI, ConfigurationPlugInEventRepresentation> plugInReps =
configSnapshot.getPlugInEventRepresentation();
for (Map.Entry<URI, ConfigurationPlugInEventRepresentation> entry : plugInReps.entrySet()) {
String className = entry.getValue().getEventRepresentationClassName();
Class eventRepClass;
try {
ClassLoader cl = Thread.currentThread().getContextClassLoader();
eventRepClass = Class.forName(className, true, cl);
} catch (ClassNotFoundException ex) {
throw new ConfigurationException(
"Failed to load plug-in event representation class '" + className + "'", ex);
}
Object pluginEventRepObj;
try {
pluginEventRepObj = eventRepClass.newInstance();
} catch (InstantiationException ex) {
throw new ConfigurationException(
"Failed to instantiate plug-in event representation class '"
+ className
+ "' via default constructor",
ex);
} catch (IllegalAccessException ex) {
throw new ConfigurationException(
"Illegal access to instantiate plug-in event representation class '"
+ className
+ "' via default constructor",
ex);
}
if (!(pluginEventRepObj instanceof PlugInEventRepresentation)) {
throw new ConfigurationException(
"Plug-in event representation class '"
+ className
+ "' does not implement the required interface "
+ PlugInEventRepresentation.class.getName());
}
URI eventRepURI = entry.getKey();
PlugInEventRepresentation pluginEventRep = (PlugInEventRepresentation) pluginEventRepObj;
Serializable initializer = entry.getValue().getInitializer();
PlugInEventRepresentationContext context =
new PlugInEventRepresentationContext(eventAdapterService, eventRepURI, initializer);
try {
pluginEventRep.init(context);
eventAdapterService.addEventRepresentation(eventRepURI, pluginEventRep);
} catch (Throwable t) {
throw new ConfigurationException(
"Plug-in event representation class '"
+ className
+ "' and URI '"
+ eventRepURI
+ "' did not initialize correctly : "
+ t.getMessage(),
t);
}
}
// Add plug-in event type names
Map<String, ConfigurationPlugInEventType> plugInNames = configSnapshot.getPlugInEventTypes();
for (Map.Entry<String, ConfigurationPlugInEventType> entry : plugInNames.entrySet()) {
String name = entry.getKey();
ConfigurationPlugInEventType config = entry.getValue();
eventAdapterService.addPlugInEventType(
name, config.getEventRepresentationResolutionURIs(), config.getInitializer());
}
}