private static ContextControllerFactory BuildContextFactory(ContextControllerFactoryContext factoryContext,
ContextDetail detail,
IList <FilterSpecCompiled> optFiltersNested,
ContextStateCache contextStateCache)
{
return(factoryContext.ServicesContext.ContextControllerFactoryFactorySvc.Make(factoryContext, detail, optFiltersNested, contextStateCache));
}
public ContextManager Make(ContextDetail contextDetail, ContextControllerFactoryServiceContext factoryServiceContext)
{
if (contextDetail is ContextDetailNested)
{
return(new ContextManagerNested(factoryServiceContext));
}
return(new ContextManagerImpl(factoryServiceContext));
}
public ContextDescriptor(string contextName, bool singleInstanceContext, ContextPropertyRegistry contextPropertyRegistry, StatementAIResourceRegistryFactory aiResourceRegistryFactory, ContextEnumeratorHandler iteratorHandler, ContextDetail contextDetail)
{
_contextName = contextName;
_singleInstanceContext = singleInstanceContext;
_contextPropertyRegistry = contextPropertyRegistry;
_aiResourceRegistryFactory = aiResourceRegistryFactory;
_iteratorHandler = iteratorHandler;
_contextDetail = contextDetail;
}
private static ContextDetail WalkNested(IList <EsperEPL2GrammarParser.ContextContextNestedContext> nestedContexts, IDictionary <ITree, ExprNode> astExprNodeMap, IDictionary <ITree, EvalFactoryNode> astPatternNodeMap, PropertyEvalSpec propertyEvalSpec, FilterSpecRaw filterSpec)
{
IList <CreateContextDesc> contexts = new List <CreateContextDesc>(nestedContexts.Count);
foreach (EsperEPL2GrammarParser.ContextContextNestedContext nestedctx in nestedContexts)
{
ContextDetail contextDetail = WalkChoice(nestedctx.createContextChoice(), astExprNodeMap, astPatternNodeMap, propertyEvalSpec, filterSpec);
CreateContextDesc desc = new CreateContextDesc(nestedctx.name.Text, contextDetail);
contexts.Add(desc);
}
return(new ContextDetailNested(contexts));
}
private static ContextControllerFactory BuildContextFactory(
ContextControllerFactoryServiceContext serviceContext,
String contextName,
ContextDetail detail,
int nestingLevel,
IList <FilterSpecCompiled> optFiltersNested,
ContextStateCache contextStateCache)
{
var factoryContext = new ContextControllerFactoryContext(
serviceContext.ContextName, contextName, serviceContext.ServicesContext,
serviceContext.AgentInstanceContextCreate, nestingLevel, serviceContext.IsRecoveringResilient);
return(BuildContextFactory(factoryContext, detail, optFiltersNested, contextStateCache));
}
public ContextControllerFactoryServiceContext(
String contextName,
EPServicesContext servicesContext,
ContextDetail detail,
AgentInstanceContext agentInstanceContextCreate,
bool isRecoveringResilient,
EventType statementResultEventType)
{
ContextName = contextName;
ServicesContext = servicesContext;
Detail = detail;
AgentInstanceContextCreate = agentInstanceContextCreate;
IsRecoveringResilient = isRecoveringResilient;
StatementResultEventType = statementResultEventType;
}
public CreateContextDesc(String contextName, ContextDetail contextDetail)
{
ContextName = contextName;
ContextDetail = contextDetail;
}
private void ValidateContextDetail(
EPServicesContext servicesContext,
StatementContext statementContext,
ISet <string> eventTypesReferenced,
ContextDetail contextDetail,
AgentInstanceContext agentInstanceContext)
{
if (contextDetail is ContextDetailPartitioned)
{
var segmented = (ContextDetailPartitioned)contextDetail;
foreach (var partition in segmented.Items)
{
ValidateNotTable(servicesContext, partition.FilterSpecRaw.EventTypeName);
var raw = new FilterStreamSpecRaw(partition.FilterSpecRaw, ViewSpec.EMPTY_VIEWSPEC_ARRAY, null, new StreamSpecOptions());
var compiled = raw.Compile(statementContext, eventTypesReferenced, false, Collections.GetEmptyList <int>(), false, true, false, null);
if (!(compiled is FilterStreamSpecCompiled))
{
throw new ExprValidationException("Partition criteria may not include named windows");
}
var result = (FilterStreamSpecCompiled)compiled;
partition.FilterSpecCompiled = result.FilterSpec;
}
}
else if (contextDetail is ContextDetailCategory)
{
// compile filter
var category = (ContextDetailCategory)contextDetail;
ValidateNotTable(servicesContext, category.FilterSpecRaw.EventTypeName);
var raw = new FilterStreamSpecRaw(category.FilterSpecRaw, ViewSpec.EMPTY_VIEWSPEC_ARRAY, null, new StreamSpecOptions());
var result = (FilterStreamSpecCompiled)raw.Compile(statementContext, eventTypesReferenced, false, Collections.GetEmptyList <int>(), false, true, false, null);
category.FilterSpecCompiled = result.FilterSpec;
servicesContext.StatementEventTypeRefService.AddReferences(statementContext.StatementName, CollectionUtil.ToArray(eventTypesReferenced));
// compile expressions
foreach (var item in category.Items)
{
ValidateNotTable(servicesContext, category.FilterSpecRaw.EventTypeName);
var filterSpecRaw = new FilterSpecRaw(category.FilterSpecRaw.EventTypeName, Collections.SingletonList(item.Expression), null);
var rawExpr = new FilterStreamSpecRaw(filterSpecRaw, ViewSpec.EMPTY_VIEWSPEC_ARRAY, null, new StreamSpecOptions());
var compiled = (FilterStreamSpecCompiled)rawExpr.Compile(statementContext, eventTypesReferenced, false, Collections.GetEmptyList <int>(), false, true, false, null);
item.SetCompiledFilter(compiled.FilterSpec, agentInstanceContext);
}
}
else if (contextDetail is ContextDetailHash)
{
var hashed = (ContextDetailHash)contextDetail;
foreach (var hashItem in hashed.Items)
{
var raw = new FilterStreamSpecRaw(hashItem.FilterSpecRaw, ViewSpec.EMPTY_VIEWSPEC_ARRAY, null, new StreamSpecOptions());
ValidateNotTable(servicesContext, hashItem.FilterSpecRaw.EventTypeName);
var result = (FilterStreamSpecCompiled)raw.Compile(statementContext, eventTypesReferenced, false, Collections.GetEmptyList <int>(), false, true, false, null);
hashItem.FilterSpecCompiled = result.FilterSpec;
// validate parameters
var streamTypes = new StreamTypeServiceImpl(result.FilterSpec.FilterForEventType, null, true, statementContext.EngineURI);
var validationContext = new ExprValidationContext(
streamTypes,
statementContext.EngineImportService,
statementContext.StatementExtensionServicesContext, null,
statementContext.SchedulingService,
statementContext.VariableService, statementContext.TableService,
GetDefaultAgentInstanceContext(statementContext), statementContext.EventAdapterService,
statementContext.StatementName, statementContext.StatementId, statementContext.Annotations,
statementContext.ContextDescriptor, statementContext.ScriptingService, false, false, false, false,
null, false);
ExprNodeUtility.Validate(ExprNodeOrigin.CONTEXT, Collections.SingletonList(hashItem.Function), validationContext);
}
}
else if (contextDetail is ContextDetailInitiatedTerminated)
{
var def = (ContextDetailInitiatedTerminated)contextDetail;
var startCondition = ValidateRewriteContextCondition(servicesContext, statementContext, def.Start, eventTypesReferenced, new MatchEventSpec(), new LinkedHashSet <string>());
var endCondition = ValidateRewriteContextCondition(servicesContext, statementContext, def.End, eventTypesReferenced, startCondition.Matches, startCondition.AllTags);
def.Start = startCondition.Condition;
def.End = endCondition.Condition;
if (def.DistinctExpressions != null)
{
if (!(startCondition.Condition is ContextDetailConditionFilter))
{
throw new ExprValidationException("Distinct-expressions require a stream as the initiated-by condition");
}
var distinctExpressions = def.DistinctExpressions;
if (distinctExpressions.Length == 0)
{
throw new ExprValidationException("Distinct-expressions have not been provided");
}
var filter = (ContextDetailConditionFilter)startCondition.Condition;
if (filter.OptionalFilterAsName == null)
{
throw new ExprValidationException("Distinct-expressions require that a stream name is assigned to the stream using 'as'");
}
var types = new StreamTypeServiceImpl(filter.FilterSpecCompiled.FilterForEventType, filter.OptionalFilterAsName, true, servicesContext.EngineURI);
var validationContext = new ExprValidationContext(
types,
statementContext.EngineImportService,
statementContext.StatementExtensionServicesContext, null,
statementContext.SchedulingService,
statementContext.VariableService, statementContext.TableService,
GetDefaultAgentInstanceContext(statementContext), statementContext.EventAdapterService,
statementContext.StatementName, statementContext.StatementId, statementContext.Annotations,
statementContext.ContextDescriptor, statementContext.ScriptingService, false, false, true, false,
null, false);
for (var i = 0; i < distinctExpressions.Length; i++)
{
ExprNodeUtility.ValidatePlainExpression(ExprNodeOrigin.CONTEXTDISTINCT, ExprNodeUtility.ToExpressionStringMinPrecedenceSafe(distinctExpressions[i]), distinctExpressions[i]);
distinctExpressions[i] = ExprNodeUtility.GetValidatedSubtree(ExprNodeOrigin.CONTEXTDISTINCT, distinctExpressions[i], validationContext);
}
}
}
else if (contextDetail is ContextDetailNested)
{
var nested = (ContextDetailNested)contextDetail;
foreach (var nestedContext in nested.Contexts)
{
ValidateContextDetail(servicesContext, statementContext, eventTypesReferenced, nestedContext.ContextDetail, agentInstanceContext);
}
}
else
{
throw new IllegalStateException("Unrecognized context detail " + contextDetail);
}
}
public ContextControllerFactory Make(ContextControllerFactoryContext factoryContext, ContextDetail detail, IList <FilterSpecCompiled> optFiltersNested, ContextStateCache contextStateCache)
{
ContextControllerFactory factory;
if (detail is ContextDetailInitiatedTerminated)
{
factory = new ContextControllerInitTermFactory(factoryContext, (ContextDetailInitiatedTerminated)detail, contextStateCache);
}
else if (detail is ContextDetailPartitioned)
{
factory = new ContextControllerPartitionedFactory(factoryContext, (ContextDetailPartitioned)detail, optFiltersNested, contextStateCache);
}
else if (detail is ContextDetailCategory)
{
factory = new ContextControllerCategoryFactory(factoryContext, (ContextDetailCategory)detail, optFiltersNested, contextStateCache);
}
else if (detail is ContextDetailHash)
{
factory = new ContextControllerHashFactory(factoryContext, (ContextDetailHash)detail, optFiltersNested, contextStateCache);
}
else
{
throw new UnsupportedOperationException("Context detail " + detail + " is not yet supported in a nested context");
}
return(factory);
}