public static FilterSpecCompiled Build(
IList <ExprNode> validatedNodes,
EventType eventType,
string eventTypeName,
PropertyEvalSpec optionalPropertyEvalSpec,
IDictionary <string, Pair <EventType, string> > taggedEventTypes,
IDictionary <string, Pair <EventType, string> > arrayEventTypes,
StreamTypeService streamTypeService,
string optionalStreamName,
StatementContext stmtContext,
ICollection <int> assignedTypeNumberStack)
{
var evaluatorContextStmt = new ExprEvaluatorContextStatement(stmtContext, false);
return(BuildNoStmtCtx(validatedNodes, eventType, eventTypeName, optionalPropertyEvalSpec, taggedEventTypes, arrayEventTypes, streamTypeService,
optionalStreamName, assignedTypeNumberStack,
evaluatorContextStmt,
stmtContext.StatementId,
stmtContext.StatementName,
stmtContext.Annotations,
stmtContext.ContextDescriptor,
stmtContext.MethodResolutionService,
stmtContext.EventAdapterService,
stmtContext.TimeProvider,
stmtContext.VariableService,
stmtContext.ScriptingService,
stmtContext.TableService,
stmtContext.ConfigSnapshot,
stmtContext.NamedWindowService));
}
public static FilterSpecCompiledDesc Build(
FilterSpecValidatedDesc validatedDesc,
EventType eventType,
string eventTypeName,
PropertyEvalSpec optionalPropertyEvalSpec,
IDictionary<string, Pair<EventType, string>> taggedEventTypes,
IDictionary<string, Pair<EventType, string>> arrayEventTypes,
ISet<string> allTagNamesOrdered,
StreamTypeService streamTypeService,
string optionalStreamName,
StatementRawInfo statementRawInfo,
StatementCompileTimeServices compileTimeServices)
{
var compiled = BuildNoStmtCtx(
validatedDesc.Expressions,
eventType,
eventTypeName,
optionalStreamName,
optionalPropertyEvalSpec,
taggedEventTypes,
arrayEventTypes,
allTagNamesOrdered,
streamTypeService,
statementRawInfo,
compileTimeServices);
return new FilterSpecCompiledDesc(compiled, validatedDesc.AdditionalForgeables);
}
public static FilterSpecCompiled MakeFilterSpec(
EventType eventType,
string eventTypeName,
IList<ExprNode> filterExpessions,
PropertyEvalSpec optionalPropertyEvalSpec,
IDictionary<string, Pair<EventType, string>> taggedEventTypes,
IDictionary<string, Pair<EventType, string>> arrayEventTypes,
StreamTypeService streamTypeService,
string optionalStreamName,
StatementRawInfo statementRawInfo,
StatementCompileTimeServices services)
{
// Validate all nodes, make sure each returns a boolean and types are good;
// Also decompose all AND super nodes into individual expressions
var validatedNodes = ValidateAllowSubquery(
ExprNodeOrigin.FILTER,
filterExpessions,
streamTypeService,
taggedEventTypes,
arrayEventTypes,
statementRawInfo,
services);
return Build(
validatedNodes,
eventType,
eventTypeName,
optionalPropertyEvalSpec,
taggedEventTypes,
arrayEventTypes,
streamTypeService,
optionalStreamName,
statementRawInfo,
services);
}
private static ContextDetailCondition GetContextCondition(
EsperEPL2GrammarParser.CreateContextRangePointContext ctx,
IDictionary <ITree, ExprNode> astExprNodeMap,
IDictionary <ITree, EvalFactoryNode> astPatternNodeMap,
PropertyEvalSpec propertyEvalSpec,
bool immediate)
{
if (ctx == null)
{
return(ContextDetailConditionNever.INSTANCE);
}
if (ctx.crontabLimitParameterSet() != null)
{
var crontab = ASTExprHelper.ExprCollectSubNodes(
ctx.crontabLimitParameterSet(), 0, astExprNodeMap);
return(new ContextDetailConditionCrontab(crontab, immediate));
}
else if (ctx.patternInclusionExpression() != null)
{
var evalNode = ASTExprHelper.PatternGetRemoveTopNode(
ctx.patternInclusionExpression(), astPatternNodeMap);
var inclusive = false;
if (ctx.i != null)
{
var ident = ctx.i.Text;
if (ident != null && !ident.ToLowerInvariant().Equals("inclusive"))
{
throw ASTWalkException.From(
"Expected 'inclusive' keyword after '@', found '" + ident + "' instead");
}
inclusive = true;
}
return(new ContextDetailConditionPattern(evalNode, inclusive, immediate));
}
else if (ctx.createContextFilter() != null)
{
var filterSpecRaw =
ASTFilterSpecHelper.WalkFilterSpec(
ctx.createContextFilter().eventFilterExpression(), propertyEvalSpec, astExprNodeMap);
var asName = ctx.createContextFilter().i != null?ctx.createContextFilter().i.Text : null;
if (immediate)
{
throw ASTWalkException.From(
"Invalid use of 'now' with initiated-by stream, this combination is not supported");
}
return(new ContextDetailConditionFilter(filterSpecRaw, asName));
}
else if (ctx.AFTER() != null)
{
var timePeriod =
(ExprTimePeriod)ASTExprHelper.ExprCollectSubNodes(ctx.timePeriod(), 0, astExprNodeMap)[0];
return(new ContextDetailConditionTimePeriod(timePeriod, immediate));
}
else
{
throw new IllegalStateException("Unrecognized child type");
}
}
private static ContextSpecConditionFilter GetContextDetailConditionFilter(
EsperEPL2GrammarParser.CreateContextFilterContext ctx,
PropertyEvalSpec propertyEvalSpec,
IDictionary<ITree, ExprNode> astExprNodeMap)
{
var filterSpecRaw = ASTFilterSpecHelper.WalkFilterSpec(ctx.eventFilterExpression(), propertyEvalSpec, astExprNodeMap);
var asName = ctx.i?.Text;
return new ContextSpecConditionFilter(filterSpecRaw, asName);
}
public static FilterSpecRaw WalkFilterSpec(
EsperEPL2GrammarParser.EventFilterExpressionContext ctx,
PropertyEvalSpec propertyEvalSpec,
IDictionary<ITree, ExprNode> astExprNodeMap)
{
var eventName = ASTUtil.UnescapeClassIdent(ctx.classIdentifier());
var exprNodes = ctx.expressionList() != null
? ASTExprHelper.ExprCollectSubNodes(ctx.expressionList(), 0, astExprNodeMap)
: new List<ExprNode>(1);
return new FilterSpecRaw(eventName, exprNodes, propertyEvalSpec);
}
public static FilterSpecCompiled BuildNoStmtCtx(
IList<ExprNode> validatedNodes,
EventType eventType,
string eventTypeName,
string optionalStreamName,
PropertyEvalSpec optionalPropertyEvalSpec,
IDictionary<string, Pair<EventType, string>> taggedEventTypes,
IDictionary<string, Pair<EventType, string>> arrayEventTypes,
ISet<string> allTagNamesOrdered,
StreamTypeService streamTypeService,
StatementRawInfo statementRawInfo,
StatementCompileTimeServices compileTimeServices)
{
PropertyEvaluatorForge optionalPropertyEvaluator = null;
if (optionalPropertyEvalSpec != null) {
optionalPropertyEvaluator = PropertyEvaluatorForgeFactory.MakeEvaluator(
optionalPropertyEvalSpec,
eventType,
optionalStreamName,
statementRawInfo,
compileTimeServices);
}
// unwind "and" and "or"
var unwound = FilterSpecCompilerIndexPlannerUnwindAndOr.UnwindAndOr(validatedNodes);
var args = new FilterSpecCompilerArgs(
taggedEventTypes,
arrayEventTypes,
allTagNamesOrdered,
streamTypeService,
null,
statementRawInfo,
compileTimeServices);
var plan = FilterSpecCompilerIndexPlanner.PlanFilterParameters(unwound, args);
var hook = (FilterSpecCompileHook) ImportUtil.GetAnnotationHook(
statementRawInfo.Annotations,
HookType.INTERNAL_FILTERSPEC,
typeof(FilterSpecCompileHook),
compileTimeServices.ImportServiceCompileTime);
hook?.FilterIndexPlan(eventType, unwound, plan);
if (compileTimeServices.Configuration.Compiler.Logging.IsEnableFilterPlan) {
LogFilterPlans(unwound, plan, eventType, optionalStreamName, statementRawInfo);
}
if (Log.IsDebugEnabled) {
Log.Debug(".makeFilterSpec spec=" + plan);
}
return new FilterSpecCompiled(eventType, eventTypeName, plan, optionalPropertyEvaluator);
}
private static ContextSpec WalkNested(
IList<EsperEPL2GrammarParser.ContextContextNestedContext> nestedContexts,
IDictionary<ITree, ExprNode> astExprNodeMap,
IDictionary<ITree, EvalForgeNode> astPatternNodeMap,
PropertyEvalSpec propertyEvalSpec,
FilterSpecRaw filterSpec)
{
IList<CreateContextDesc> contexts = new List<CreateContextDesc>(nestedContexts.Count);
foreach (var nestedctx in nestedContexts)
{
var contextDetail = WalkChoice(nestedctx.createContextChoice(), astExprNodeMap, astPatternNodeMap, propertyEvalSpec);
var desc = new CreateContextDesc(nestedctx.name.Text, contextDetail);
contexts.Add(desc);
}
return new ContextNested(contexts);
}
public static FilterSpecCompiled BuildNoStmtCtx(
IList<ExprNode> validatedNodes,
EventType eventType,
string eventTypeName,
string optionalStreamName,
PropertyEvalSpec optionalPropertyEvalSpec,
IDictionary<string, Pair<EventType, string>> taggedEventTypes,
IDictionary<string, Pair<EventType, string>> arrayEventTypes,
StreamTypeService streamTypeService,
StatementRawInfo statementRawInfo,
StatementCompileTimeServices compileTimeServices
)
{
PropertyEvaluatorForge optionalPropertyEvaluator = null;
if (optionalPropertyEvalSpec != null) {
optionalPropertyEvaluator = PropertyEvaluatorForgeFactory.MakeEvaluator(
optionalPropertyEvalSpec,
eventType,
optionalStreamName,
statementRawInfo,
compileTimeServices);
}
var args = new FilterSpecCompilerArgs(
taggedEventTypes,
arrayEventTypes,
streamTypeService,
null,
statementRawInfo,
compileTimeServices);
IList<FilterSpecParamForge>[] spec = FilterSpecCompilerPlanner.PlanFilterParameters(validatedNodes, args);
if (Log.IsDebugEnabled) {
Log.Debug(".makeFilterSpec spec=" + spec);
}
return new FilterSpecCompiled(eventType, eventTypeName, spec, optionalPropertyEvaluator);
}
public static CreateContextDesc WalkCreateContext(
EsperEPL2GrammarParser.CreateContextExprContext ctx,
IDictionary<ITree, ExprNode> astExprNodeMap,
IDictionary<ITree, EvalForgeNode> astPatternNodeMap,
PropertyEvalSpec propertyEvalSpec,
FilterSpecRaw filterSpec)
{
var contextName = ctx.name.Text;
ContextSpec contextDetail;
var choice = ctx.createContextDetail().createContextChoice();
if (choice != null)
{
contextDetail = WalkChoice(choice, astExprNodeMap, astPatternNodeMap, propertyEvalSpec);
}
else
{
contextDetail = WalkNested(
ctx.createContextDetail().contextContextNested(), astExprNodeMap, astPatternNodeMap, propertyEvalSpec, filterSpec);
}
return new CreateContextDesc(contextName, contextDetail);
}
public static FilterSpecCompiled Build(
IList<ExprNode> validatedNodes,
EventType eventType,
string eventTypeName,
PropertyEvalSpec optionalPropertyEvalSpec,
IDictionary<string, Pair<EventType, string>> taggedEventTypes,
IDictionary<string, Pair<EventType, string>> arrayEventTypes,
StreamTypeService streamTypeService,
string optionalStreamName,
StatementRawInfo statementRawInfo,
StatementCompileTimeServices compileTimeServices)
{
return BuildNoStmtCtx(
validatedNodes,
eventType,
eventTypeName,
optionalStreamName,
optionalPropertyEvalSpec,
taggedEventTypes,
arrayEventTypes,
streamTypeService,
statementRawInfo,
compileTimeServices);
}
public static FilterSpecCompiled BuildNoStmtCtx(
IList <ExprNode> validatedFilterNodes,
EventType eventType,
string eventTypeName,
PropertyEvalSpec optionalPropertyEvalSpec,
IDictionary <string, Pair <EventType, string> > taggedEventTypes,
IDictionary <string, Pair <EventType, string> > arrayEventTypes,
StreamTypeService streamTypeService,
string optionalStreamName,
ICollection <int> assignedTypeNumberStack,
ExprEvaluatorContext exprEvaluatorContext,
string statementId,
string statementName,
Attribute[] annotations,
ContextDescriptor contextDescriptor,
MethodResolutionService methodResolutionService,
EventAdapterService eventAdapterService,
TimeProvider timeProvider,
VariableService variableService,
ScriptingService scriptingService,
TableService tableService,
ConfigurationInformation configurationInformation,
NamedWindowService namedWindowService)
{
var args = new FilterSpecCompilerArgs(
taggedEventTypes,
arrayEventTypes,
exprEvaluatorContext,
statementName,
statementId,
streamTypeService,
methodResolutionService,
timeProvider,
variableService,
tableService,
eventAdapterService,
scriptingService,
annotations,
contextDescriptor,
configurationInformation);
var parameters = FilterSpecCompilerPlanner.PlanFilterParameters(validatedFilterNodes, args);
PropertyEvaluator optionalPropertyEvaluator = null;
if (optionalPropertyEvalSpec != null)
{
optionalPropertyEvaluator = PropertyEvaluatorFactory.MakeEvaluator(
optionalPropertyEvalSpec,
eventType,
optionalStreamName,
eventAdapterService,
methodResolutionService,
timeProvider,
variableService,
scriptingService,
tableService,
streamTypeService.EngineURIQualifier,
statementId,
statementName,
annotations,
assignedTypeNumberStack,
configurationInformation,
namedWindowService);
}
var spec = new FilterSpecCompiled(eventType, eventTypeName, parameters, optionalPropertyEvaluator);
if (Log.IsDebugEnabled)
{
Log.Debug(".makeFilterSpec spec=" + spec);
}
return(spec);
}
private static ContextSpec WalkChoice(
EsperEPL2GrammarParser.CreateContextChoiceContext ctx,
IDictionary<ITree, ExprNode> astExprNodeMap,
IDictionary<ITree, EvalForgeNode> astPatternNodeMap,
PropertyEvalSpec propertyEvalSpec)
{
// temporal fixed (start+end) and overlapping (initiated/terminated)
if (ctx.START() != null || ctx.INITIATED() != null)
{
ExprNode[] distinctExpressions = null;
if (ctx.createContextDistinct() != null)
{
if (ctx.createContextDistinct().expressionList() == null)
{
distinctExpressions = ExprNodeUtilityQuery.EMPTY_EXPR_ARRAY;
}
else
{
distinctExpressions = ASTExprHelper.ExprCollectSubNodesPerNode(
ctx.createContextDistinct().expressionList().expression(), astExprNodeMap);
}
}
ContextSpecCondition startEndpoint;
if (ctx.START() != null)
{
var immediate = CheckNow(ctx.i);
if (immediate)
{
startEndpoint = ContextSpecConditionImmediate.INSTANCE;
}
else
{
startEndpoint = GetContextCondition(ctx.r1, astExprNodeMap, astPatternNodeMap, propertyEvalSpec, false);
}
}
else
{
var immediate = CheckNow(ctx.i);
startEndpoint = GetContextCondition(ctx.r1, astExprNodeMap, astPatternNodeMap, propertyEvalSpec, immediate);
}
var overlapping = ctx.INITIATED() != null;
var endEndpoint = GetContextCondition(ctx.r2, astExprNodeMap, astPatternNodeMap, propertyEvalSpec, false);
return new ContextSpecInitiatedTerminated(startEndpoint, endEndpoint, overlapping, distinctExpressions);
}
// partitioned
if (ctx.PARTITION() != null)
{
IList<EsperEPL2GrammarParser.CreateContextPartitionItemContext> partitions = ctx.createContextPartitionItem();
IList<ContextSpecKeyedItem> rawSpecs = new List<ContextSpecKeyedItem>();
foreach (var partition in partitions)
{
var filterSpec = ASTFilterSpecHelper.WalkFilterSpec(partition.eventFilterExpression(), propertyEvalSpec, astExprNodeMap);
propertyEvalSpec = null;
IList<string> propertyNames = new List<string>();
IList<EsperEPL2GrammarParser.ChainableContext> properties = partition.chainable();
foreach (var property in properties)
{
var propertyName = ASTUtil.GetPropertyName(property, 0);
propertyNames.Add(propertyName);
}
ASTExprHelper.ExprCollectSubNodes(partition, 0, astExprNodeMap); // remove expressions
rawSpecs.Add(
new ContextSpecKeyedItem(
filterSpec, propertyNames, partition.keywordAllowedIdent() == null ? null : partition.keywordAllowedIdent().GetText()));
}
IList<ContextSpecConditionFilter> optionalInit = null;
if (ctx.createContextPartitionInit() != null)
{
optionalInit = GetContextPartitionInit(ctx.createContextPartitionInit().createContextFilter(), astExprNodeMap);
}
ContextSpecCondition optionalTermination = null;
if (ctx.createContextPartitionTerm() != null)
{
optionalTermination = GetContextCondition(
ctx.createContextPartitionTerm().createContextRangePoint(), astExprNodeMap, astPatternNodeMap, propertyEvalSpec, false);
}
return new ContextSpecKeyed(rawSpecs, optionalInit, optionalTermination);
}
if (ctx.COALESCE() != null)
{
// hash
IList<EsperEPL2GrammarParser.CreateContextCoalesceItemContext> coalesces = ctx.createContextCoalesceItem();
IList<ContextSpecHashItem> rawSpecs = new List<ContextSpecHashItem>(coalesces.Count);
foreach (var coalesce in coalesces)
{
var chain = ASTChainSpecHelper.GetChainables(coalesce.chainable(), astExprNodeMap);
var func = chain[0];
var filterSpec = ASTFilterSpecHelper.WalkFilterSpec(coalesce.eventFilterExpression(), propertyEvalSpec, astExprNodeMap);
propertyEvalSpec = null;
rawSpecs.Add(new ContextSpecHashItem(func, filterSpec));
}
var granularity = ctx.g.Text;
if (!granularity.ToLowerInvariant().Equals("granularity"))
{
throw ASTWalkException.From("Expected 'granularity' keyword after list of coalesce items, found '" + granularity + "' instead");
}
var num = ASTConstantHelper.Parse(ctx.number());
var preallocateStr = ctx.p?.Text;
if (preallocateStr != null && !preallocateStr.ToLowerInvariant().Equals("preallocate"))
{
throw ASTWalkException.From(
"Expected 'preallocate' keyword after list of coalesce items, found '" + preallocateStr + "' instead");
}
if (!num.GetType().IsNumericNonFP() || num.GetType().GetBoxedType() == typeof(long?))
{
throw ASTWalkException.From("Granularity provided must be an int-type number, received " + num.GetType() + " instead");
}
return new ContextSpecHash(rawSpecs, num.AsInt32(), preallocateStr != null);
}
// categorized
if (ctx.createContextGroupItem() != null)
{
IList<EsperEPL2GrammarParser.CreateContextGroupItemContext> grps = ctx.createContextGroupItem();
IList<ContextSpecCategoryItem> items = new List<ContextSpecCategoryItem>();
foreach (var grp in grps)
{
var exprNode = ASTExprHelper.ExprCollectSubNodes(grp, 0, astExprNodeMap)[0];
var name = grp.i.Text;
items.Add(new ContextSpecCategoryItem(exprNode, name));
}
var filterSpec = ASTFilterSpecHelper.WalkFilterSpec(ctx.eventFilterExpression(), propertyEvalSpec, astExprNodeMap);
return new ContextSpecCategory(items, filterSpec);
}
throw new IllegalStateException("Unrecognized context detail type");
}
/// <summary>
/// Makes the property evaluator.
/// </summary>
/// <param name="spec">is the property specification</param>
/// <param name="sourceEventType">the event type</param>
/// <param name="optionalSourceStreamName">the source stream name</param>
/// <param name="eventAdapterService">for event instances</param>
/// <param name="engineImportService">The engine import service.</param>
/// <param name="timeProvider">provides time</param>
/// <param name="variableService">for resolving variables</param>
/// <param name="scriptingService">The scripting service.</param>
/// <param name="tableService">The table service.</param>
/// <param name="engineURI">engine URI</param>
/// <param name="statementId">The statement identifier.</param>
/// <param name="statementName">Name of the statement.</param>
/// <param name="annotations">The annotations.</param>
/// <param name="assignedTypeNumberStack">The assigned type number stack.</param>
/// <param name="configuration">The configuration.</param>
/// <param name="namedWindowMgmtService">The named window service.</param>
/// <param name="statementExtensionSvcContext">The statement extension SVC context.</param>
/// <returns>
/// propert evaluator
/// </returns>
/// <exception cref="ExprValidationException">Missing @type(name) declaration providing the event type name of the return type for expression ' +
/// ExprNodeUtility.ToExpressionStringMinPrecedenceSafe(atom.SplitterExpression) + '
/// or
/// Event type by name ' + atom.OptionalResultEventType + ' could not be found
/// or
/// Event type ' + streamEventType.Name + ' underlying type + streamEventType.UnderlyingType.Name +
/// cannot be assigned a value of type + returnType.GetTypeNameFullyQualPretty()
/// or
/// Return type of expression ' + ExprNodeUtility.ToExpressionStringMinPrecedenceSafe(atom.SplitterExpression) + ' is ' + returnType.Name + ', expected an Iterable or array result
/// or
/// Property rename ' + rawStreamSpec.MaskTypeName + ' not found in path
/// or
/// Expression in a property-selection may not utilize + isMinimal</exception>
/// <exception cref="IllegalStateException">Unknown select clause item: + raw</exception>
/// <throws>ExprValidationException if any expressions could not be verified</throws>
public static PropertyEvaluator MakeEvaluator(
PropertyEvalSpec spec,
EventType sourceEventType,
string optionalSourceStreamName,
EventAdapterService eventAdapterService,
EngineImportService engineImportService,
TimeProvider timeProvider,
VariableService variableService,
ScriptingService scriptingService,
TableService tableService,
string engineURI,
int statementId,
string statementName,
Attribute[] annotations,
ICollection <int> assignedTypeNumberStack,
ConfigurationInformation configuration,
NamedWindowMgmtService namedWindowMgmtService,
StatementExtensionSvcContext statementExtensionSvcContext)
{
var length = spec.Atoms.Count;
var containedEventEvals = new ContainedEventEval[length];
var fragmentEventTypes = new FragmentEventType[length];
var currentEventType = sourceEventType;
var whereClauses = new ExprEvaluator[length];
var streamEventTypes = new List <EventType>();
var streamNames = new List <string>();
var streamNameAndNumber = new Dictionary <string, int>().WithNullSupport();
var expressionTexts = new List <string>();
var validateContext = new ExprEvaluatorContextTimeOnly(timeProvider);
streamEventTypes.Add(sourceEventType);
streamNames.Add(optionalSourceStreamName);
streamNameAndNumber.Put(optionalSourceStreamName, 0);
expressionTexts.Add(sourceEventType.Name);
IList <SelectClauseElementCompiled> cumulativeSelectClause = new List <SelectClauseElementCompiled>();
for (var i = 0; i < length; i++)
{
var atom = spec.Atoms[i];
ContainedEventEval containedEventEval = null;
string expressionText = null;
EventType streamEventType = null;
FragmentEventType fragmentEventType = null;
// Resolve directly as fragment event type if possible
if (atom.SplitterExpression is ExprIdentNode)
{
var propertyName = ((ExprIdentNode)atom.SplitterExpression).FullUnresolvedName;
fragmentEventType = currentEventType.GetFragmentType(propertyName);
if (fragmentEventType != null)
{
var getter = currentEventType.GetGetter(propertyName);
if (getter != null)
{
containedEventEval = new ContainedEventEvalGetter(getter);
expressionText = propertyName;
streamEventType = fragmentEventType.FragmentType;
}
}
}
// evaluate splitter expression
if (containedEventEval == null)
{
ExprNodeUtility.ValidatePlainExpression(
ExprNodeOrigin.CONTAINEDEVENT,
ExprNodeUtility.ToExpressionStringMinPrecedenceSafe(atom.SplitterExpression),
atom.SplitterExpression);
var availableTypes = streamEventTypes.ToArray();
var availableStreamNames = streamNames.ToArray();
var isIStreamOnly = new bool[streamNames.Count];
isIStreamOnly.Fill(true);
StreamTypeService streamTypeService = new StreamTypeServiceImpl(
availableTypes, availableStreamNames, isIStreamOnly, engineURI, false);
var validationContext = new ExprValidationContext(
streamTypeService, engineImportService, statementExtensionSvcContext, null, timeProvider, variableService, tableService,
validateContext, eventAdapterService, statementName, statementId, annotations, null, scriptingService,
false, false, true, false, null, false);
var validatedExprNode = ExprNodeUtility.GetValidatedSubtree(
ExprNodeOrigin.CONTAINEDEVENT, atom.SplitterExpression, validationContext);
var evaluator = validatedExprNode.ExprEvaluator;
// determine result type
if (atom.OptionalResultEventType == null)
{
throw new ExprValidationException(
"Missing @type(name) declaration providing the event type name of the return type for expression '" +
ExprNodeUtility.ToExpressionStringMinPrecedenceSafe(atom.SplitterExpression) + "'");
}
streamEventType = eventAdapterService.GetEventTypeByName(atom.OptionalResultEventType);
if (streamEventType == null)
{
throw new ExprValidationException(
"Event type by name '" + atom.OptionalResultEventType + "' could not be found");
}
var returnType = evaluator.ReturnType;
// when the expression returns an array, allow array values to become the column of the single-column event type
if (returnType.IsArray &&
streamEventType.PropertyNames.Length == 1 &&
TypeHelper.IsSubclassOrImplementsInterface(
TypeHelper.GetBoxedType(returnType.GetElementType()),
TypeHelper.GetBoxedType(streamEventType.GetPropertyType(streamEventType.PropertyNames[0]))))
{
var writables = eventAdapterService.GetWriteableProperties(streamEventType, false);
if (!writables.IsEmpty())
{
try
{
EventBeanManufacturer manufacturer = EventAdapterServiceHelper.GetManufacturer(
eventAdapterService, streamEventType,
new WriteablePropertyDescriptor[] { writables.First() },
engineImportService, false,
eventAdapterService.EventAdapterAvroHandler);
containedEventEval = new ContainedEventEvalArrayToEvent(evaluator, manufacturer);
}
catch (EventBeanManufactureException e)
{
throw new ExprValidationException(
"Event type '" + streamEventType.Name + "' cannot be populated: " + e.Message, e);
}
}
else
{
throw new ExprValidationException("Event type '" + streamEventType.Name + "' cannot be written to");
}
}
else if (returnType.IsArray() && returnType.GetElementType() == typeof(EventBean))
{
containedEventEval = new ContainedEventEvalEventBeanArray(evaluator);
}
else
{
EventBeanFactory eventBeanFactory = EventAdapterServiceHelper.GetFactoryForType(
streamEventType, eventAdapterService);
// check expression result type against eventtype expected underlying type
if (returnType.IsArray())
{
if (!TypeHelper.IsSubclassOrImplementsInterface(returnType.GetElementType(), streamEventType.UnderlyingType))
{
throw new ExprValidationException(
"Event type '" + streamEventType.Name + "' underlying type " +
streamEventType.UnderlyingType.FullName +
" cannot be assigned a value of type " + TypeHelper.GetTypeNameFullyQualPretty(returnType));
}
}
else if (GenericExtensions.IsGenericEnumerable(returnType) || returnType.IsImplementsInterface <IEnumerable>())
{
// fine, assumed to return the right type
}
else
{
throw new ExprValidationException(
"Return type of expression '" +
ExprNodeUtility.ToExpressionStringMinPrecedenceSafe(atom.SplitterExpression) + "' is '" +
returnType.FullName + "', expected an Iterable or array result");
}
containedEventEval = new ContainedEventEvalExprNode(evaluator, eventBeanFactory);
}
expressionText = ExprNodeUtility.ToExpressionStringMinPrecedenceSafe(validatedExprNode);
fragmentEventType = new FragmentEventType(streamEventType, true, false);
}
// validate where clause, if any
streamEventTypes.Add(streamEventType);
streamNames.Add(atom.OptionalAsName);
streamNameAndNumber.Put(atom.OptionalAsName, i + 1);
expressionTexts.Add(expressionText);
if (atom.OptionalWhereClause != null)
{
var whereTypes = streamEventTypes.ToArray();
var whereStreamNames = streamNames.ToArray();
var isIStreamOnly = new bool[streamNames.Count];
isIStreamOnly.Fill(true);
StreamTypeService streamTypeService = new StreamTypeServiceImpl(
whereTypes, whereStreamNames, isIStreamOnly, engineURI, false);
var validationContext = new ExprValidationContext(
streamTypeService, engineImportService, statementExtensionSvcContext, null, timeProvider, variableService, tableService,
validateContext, eventAdapterService, statementName, statementId, annotations, null, scriptingService,
false, false, true, false, null, false);
whereClauses[i] =
ExprNodeUtility.GetValidatedSubtree(
ExprNodeOrigin.CONTAINEDEVENT, atom.OptionalWhereClause, validationContext).ExprEvaluator;
}
// validate select clause
if (atom.OptionalSelectClause != null)
{
var whereTypes = streamEventTypes.ToArray();
var whereStreamNames = streamNames.ToArray();
var isIStreamOnly = new bool[streamNames.Count];
isIStreamOnly.Fill(true);
StreamTypeService streamTypeService = new StreamTypeServiceImpl(
whereTypes, whereStreamNames, isIStreamOnly, engineURI, false);
var validationContext = new ExprValidationContext(
streamTypeService, engineImportService, statementExtensionSvcContext, null, timeProvider, variableService, tableService,
validateContext, eventAdapterService, statementName, statementId, annotations, null, scriptingService,
false, false, true, false, null, false);
foreach (var raw in atom.OptionalSelectClause.SelectExprList)
{
if (raw is SelectClauseStreamRawSpec)
{
var rawStreamSpec = (SelectClauseStreamRawSpec)raw;
if (!streamNames.Contains(rawStreamSpec.StreamName))
{
throw new ExprValidationException(
"Property rename '" + rawStreamSpec.StreamName + "' not found in path");
}
var streamSpec = new SelectClauseStreamCompiledSpec(
rawStreamSpec.StreamName, rawStreamSpec.OptionalAsName);
int streamNumber = streamNameAndNumber.Get(rawStreamSpec.StreamName);
streamSpec.StreamNumber = streamNumber;
cumulativeSelectClause.Add(streamSpec);
}
else if (raw is SelectClauseExprRawSpec)
{
var exprSpec = (SelectClauseExprRawSpec)raw;
var exprCompiled = ExprNodeUtility.GetValidatedSubtree(
ExprNodeOrigin.CONTAINEDEVENT, exprSpec.SelectExpression, validationContext);
var resultName = exprSpec.OptionalAsName;
if (resultName == null)
{
resultName = ExprNodeUtility.ToExpressionStringMinPrecedenceSafe(exprCompiled);
}
cumulativeSelectClause.Add(
new SelectClauseExprCompiledSpec(
exprCompiled, resultName, exprSpec.OptionalAsName, exprSpec.IsEvents));
var isMinimal = ExprNodeUtility.IsMinimalExpression(exprCompiled);
if (isMinimal != null)
{
throw new ExprValidationException(
"Expression in a property-selection may not utilize " + isMinimal);
}
}
else if (raw is SelectClauseElementWildcard)
{
// wildcards are stream selects: we assign a stream name (any) and add a stream wildcard select
var streamNameAtom = atom.OptionalAsName;
if (streamNameAtom == null)
{
streamNameAtom = UuidGenerator.Generate();
}
var streamSpec = new SelectClauseStreamCompiledSpec(streamNameAtom, atom.OptionalAsName);
var streamNumber = i + 1;
streamSpec.StreamNumber = streamNumber;
cumulativeSelectClause.Add(streamSpec);
}
else
{
throw new IllegalStateException("Unknown select clause item:" + raw);
}
}
}
currentEventType = fragmentEventType.FragmentType;
fragmentEventTypes[i] = fragmentEventType;
containedEventEvals[i] = containedEventEval;
}
if (cumulativeSelectClause.IsEmpty())
{
if (length == 1)
{
return(new PropertyEvaluatorSimple(
containedEventEvals[0], fragmentEventTypes[0], whereClauses[0], expressionTexts[0]));
}
else
{
return(new PropertyEvaluatorNested(containedEventEvals, fragmentEventTypes, whereClauses, expressionTexts));
}
}
else
{
var accumulative = new PropertyEvaluatorAccumulative(
containedEventEvals, fragmentEventTypes, whereClauses, expressionTexts);
var whereTypes = streamEventTypes.ToArray();
var whereStreamNames = streamNames.ToArray();
var isIStreamOnly = new bool[streamNames.Count];
isIStreamOnly.Fill(true);
StreamTypeService streamTypeService = new StreamTypeServiceImpl(
whereTypes, whereStreamNames, isIStreamOnly, engineURI, false);
var cumulativeSelectArr = cumulativeSelectClause.ToArray();
var selectExpr = SelectExprProcessorFactory.GetProcessor(
assignedTypeNumberStack, cumulativeSelectArr, false, null, null, null, streamTypeService,
eventAdapterService, null, null, null, engineImportService, validateContext, variableService,
scriptingService,
tableService, timeProvider, engineURI, statementId, statementName, annotations, null, configuration, null,
namedWindowMgmtService, null, null, statementExtensionSvcContext);
return(new PropertyEvaluatorSelect(selectExpr, accumulative));
}
}
public static PropertyEvaluatorForge MakeEvaluator(
PropertyEvalSpec spec,
EventType sourceEventType,
string optionalSourceStreamName,
StatementRawInfo rawInfo,
StatementCompileTimeServices services)
{
var length = spec.Atoms.Count;
var containedEventForges = new ContainedEventEvalForge[length];
var fragmentEventTypes = new FragmentEventType[length];
var currentEventType = sourceEventType;
var whereClauses = new ExprForge[length];
IList<EventType> streamEventTypes = new List<EventType>();
IList<string> streamNames = new List<string>();
IDictionary<string, int> streamNameAndNumber = new Dictionary<string, int>().WithNullKeySupport();
IList<string> expressionTexts = new List<string>();
streamEventTypes.Add(sourceEventType);
streamNames.Add(optionalSourceStreamName);
streamNameAndNumber.Put(optionalSourceStreamName, 0);
expressionTexts.Add(sourceEventType.Name);
IList<SelectClauseElementCompiled> cumulativeSelectClause = new List<SelectClauseElementCompiled>();
for (var i = 0; i < length; i++) {
var atom = spec.Atoms[i];
ContainedEventEvalForge containedEventEval = null;
string expressionText = null;
EventType streamEventType = null;
FragmentEventType fragmentEventType = null;
// Resolve directly as fragment event type if possible
if (atom.SplitterExpression is ExprIdentNode) {
var propertyName = ((ExprIdentNode) atom.SplitterExpression).FullUnresolvedName;
fragmentEventType = currentEventType.GetFragmentType(propertyName);
if (fragmentEventType != null) {
var getter = ((EventTypeSPI) currentEventType).GetGetterSPI(propertyName);
if (getter != null) {
containedEventEval = new ContainedEventEvalGetterForge(getter);
expressionText = propertyName;
streamEventType = fragmentEventType.FragmentType;
}
}
}
// evaluate splitter expression
if (containedEventEval == null) {
ExprNodeUtilityValidate.ValidatePlainExpression(
ExprNodeOrigin.CONTAINEDEVENT,
atom.SplitterExpression);
var availableTypes = streamEventTypes.ToArray();
var availableStreamNames = streamNames.ToArray();
var isIStreamOnly = new bool[streamNames.Count];
isIStreamOnly.Fill(true);
StreamTypeService streamTypeService = new StreamTypeServiceImpl(
availableTypes,
availableStreamNames,
isIStreamOnly,
false,
false);
var validationContext = new ExprValidationContextBuilder(streamTypeService, rawInfo, services)
.WithAllowBindingConsumption(true)
.Build();
var validatedExprNode = ExprNodeUtilityValidate.GetValidatedSubtree(
ExprNodeOrigin.CONTAINEDEVENT,
atom.SplitterExpression,
validationContext);
// determine result type
if (atom.OptionalResultEventType == null) {
throw new ExprValidationException(
"Missing @type(name) declaration providing the event type name of the return type for expression '" +
ExprNodeUtilityPrint.ToExpressionStringMinPrecedenceSafe(atom.SplitterExpression) +
"'");
}
streamEventType = services.EventTypeCompileTimeResolver.GetTypeByName(atom.OptionalResultEventType);
if (streamEventType == null) {
throw new ExprValidationException(
"Event type by name '" + atom.OptionalResultEventType + "' could not be found");
}
var returnType = validatedExprNode.Forge.EvaluationType;
// when the expression returns an array, allow array values to become the column of the single-column event type
if (returnType.IsArray &&
streamEventType.PropertyNames.Length == 1 &&
!(streamEventType is JsonEventType) && // since json string-array should not become itself the property
TypeHelper.IsSubclassOrImplementsInterface(
returnType.GetElementType().GetBoxedType(),
streamEventType.GetPropertyType(streamEventType.PropertyNames[0]).GetBoxedType())) {
var writables = EventTypeUtility.GetWriteableProperties(streamEventType, false, false);
if (writables != null && !writables.IsEmpty()) {
try {
var manufacturer = EventTypeUtility.GetManufacturer(
streamEventType,
new[] {writables.First()},
services.ImportServiceCompileTime,
false,
services.EventTypeAvroHandler);
containedEventEval = new ContainedEventEvalArrayToEventForge(
validatedExprNode.Forge,
manufacturer);
}
catch (EventBeanManufactureException e) {
throw new ExprValidationException(
"Event type '" + streamEventType.Name + "' cannot be populated: " + e.Message,
e);
}
}
else {
throw new ExprValidationException(
"Event type '" + streamEventType.Name + "' cannot be written to");
}
}
else if (returnType.IsArray &&
returnType.GetElementType() == typeof(EventBean)) {
containedEventEval = new ContainedEventEvalEventBeanArrayForge(validatedExprNode.Forge);
}
else {
// check expression result type against eventtype expected underlying type
if (returnType.IsArray) {
if (!(streamEventType is JsonEventType)) {
if (!TypeHelper.IsSubclassOrImplementsInterface(
returnType.GetElementType(),
streamEventType.UnderlyingType)) {
throw new ExprValidationException(
"Event type '" +
streamEventType.Name +
"' underlying type " +
streamEventType.UnderlyingType.CleanName() +
" cannot be assigned a value of type " +
returnType.CleanName());
}
}
else {
if (returnType.GetElementType() != typeof(string)) {
throw new ExprValidationException(
"Event type '" +
streamEventType.Name +
"' requires string-type array and cannot be assigned from value of type " +
returnType.CleanName());
}
}
}
else if (GenericExtensions.IsGenericEnumerable(returnType) ||
TypeHelper.IsImplementsInterface<System.Collections.IEnumerable>(returnType)) {
// fine, assumed to return the right type
}
else {
throw new ExprValidationException(
"Return type of expression '" +
ExprNodeUtilityPrint.ToExpressionStringMinPrecedenceSafe(atom.SplitterExpression) +
"' is '" +
returnType.Name +
"', expected an Iterable or array result");
}
containedEventEval = new ContainedEventEvalExprNodeForge(
validatedExprNode.Forge,
streamEventType);
}
expressionText = ExprNodeUtilityPrint.ToExpressionStringMinPrecedenceSafe(validatedExprNode);
fragmentEventType = new FragmentEventType(streamEventType, true, false);
}
// validate where clause, if any
streamEventTypes.Add(streamEventType);
streamNames.Add(atom.OptionalAsName);
streamNameAndNumber.Put(atom.OptionalAsName, i + 1);
expressionTexts.Add(expressionText);
if (atom.OptionalWhereClause != null) {
var whereTypes = streamEventTypes.ToArray();
var whereStreamNames = streamNames.ToArray();
var isIStreamOnly = new bool[streamNames.Count];
isIStreamOnly.Fill(true);
StreamTypeService streamTypeService = new StreamTypeServiceImpl(
whereTypes,
whereStreamNames,
isIStreamOnly,
false,
false);
var validationContext = new ExprValidationContextBuilder(streamTypeService, rawInfo, services)
.WithAllowBindingConsumption(true)
.Build();
var whereClause = ExprNodeUtilityValidate.GetValidatedSubtree(
ExprNodeOrigin.CONTAINEDEVENT,
atom.OptionalWhereClause,
validationContext);
whereClauses[i] = whereClause.Forge;
}
// validate select clause
if (atom.OptionalSelectClause != null && !atom.OptionalSelectClause.SelectExprList.IsEmpty()) {
var whereTypes = streamEventTypes.ToArray();
var whereStreamNames = streamNames.ToArray();
var isIStreamOnly = new bool[streamNames.Count];
isIStreamOnly.Fill(true);
StreamTypeService streamTypeService = new StreamTypeServiceImpl(
whereTypes,
whereStreamNames,
isIStreamOnly,
false,
false);
var validationContext = new ExprValidationContextBuilder(streamTypeService, rawInfo, services)
.WithAllowBindingConsumption(true)
.Build();
foreach (var raw in atom.OptionalSelectClause.SelectExprList) {
if (raw is SelectClauseStreamRawSpec) {
var rawStreamSpec = (SelectClauseStreamRawSpec) raw;
if (!streamNames.Contains(rawStreamSpec.StreamName)) {
throw new ExprValidationException(
"Property rename '" + rawStreamSpec.StreamName + "' not found in path");
}
var streamSpec = new SelectClauseStreamCompiledSpec(
rawStreamSpec.StreamName,
rawStreamSpec.OptionalAsName);
var streamNumber = streamNameAndNumber.Get(rawStreamSpec.StreamName);
streamSpec.StreamNumber = streamNumber;
cumulativeSelectClause.Add(streamSpec);
}
else if (raw is SelectClauseExprRawSpec) {
var exprSpec = (SelectClauseExprRawSpec) raw;
var exprCompiled = ExprNodeUtilityValidate.GetValidatedSubtree(
ExprNodeOrigin.CONTAINEDEVENT,
exprSpec.SelectExpression,
validationContext);
var resultName = exprSpec.OptionalAsName;
if (resultName == null) {
resultName = ExprNodeUtilityPrint.ToExpressionStringMinPrecedenceSafe(exprCompiled);
}
cumulativeSelectClause.Add(
new SelectClauseExprCompiledSpec(
exprCompiled,
resultName,
exprSpec.OptionalAsName,
exprSpec.IsEvents));
var isMinimal = ExprNodeUtilityValidate.IsMinimalExpression(exprCompiled);
if (isMinimal != null) {
throw new ExprValidationException(
"Expression in a property-selection may not utilize " + isMinimal);
}
}
else if (raw is SelectClauseElementWildcard) {
// wildcards are stream selects: we assign a stream name (any) and add a stream wildcard select
var streamNameAtom = atom.OptionalAsName;
if (streamNameAtom == null) {
streamNameAtom = UuidGenerator.Generate();
}
var streamSpec = new SelectClauseStreamCompiledSpec(streamNameAtom, atom.OptionalAsName);
var streamNumber = i + 1;
streamSpec.StreamNumber = streamNumber;
cumulativeSelectClause.Add(streamSpec);
}
else {
throw new IllegalStateException("Unknown select clause item:" + raw);
}
}
}
currentEventType = fragmentEventType.FragmentType;
fragmentEventTypes[i] = fragmentEventType;
containedEventForges[i] = containedEventEval;
}
if (cumulativeSelectClause.IsEmpty()) {
if (length == 1) {
return new PropertyEvaluatorSimpleForge(
containedEventForges[0],
fragmentEventTypes[0],
whereClauses[0],
expressionTexts[0]);
}
return new PropertyEvaluatorNestedForge(
containedEventForges,
fragmentEventTypes,
whereClauses,
expressionTexts.ToArray());
}
{
var fragmentEventTypeIsIndexed = new bool[fragmentEventTypes.Length];
for (var i = 0; i < fragmentEventTypes.Length; i++) {
fragmentEventTypeIsIndexed[i] = fragmentEventTypes[i].IsIndexed;
}
var accumulative = new PropertyEvaluatorAccumulativeForge(
containedEventForges,
fragmentEventTypeIsIndexed,
whereClauses,
expressionTexts);
var whereTypes = streamEventTypes.ToArray();
var whereStreamNames = streamNames.ToArray();
var isIStreamOnly = new bool[streamNames.Count];
isIStreamOnly.Fill(true);
StreamTypeService streamTypeService = new StreamTypeServiceImpl(
whereTypes,
whereStreamNames,
isIStreamOnly,
false,
false);
var cumulativeSelectArr = cumulativeSelectClause.ToArray();
var args = new SelectProcessorArgs(
cumulativeSelectArr,
null,
false,
null,
null,
streamTypeService,
null,
false,
rawInfo.Annotations,
rawInfo,
services);
var selectExprDesc = SelectExprProcessorFactory.GetProcessor(args, null, false);
return new PropertyEvaluatorSelectForge(selectExprDesc, accumulative);
}
}
private static ContextDetail WalkChoice(EsperEPL2GrammarParser.CreateContextChoiceContext ctx, IDictionary <ITree, ExprNode> astExprNodeMap, IDictionary <ITree, EvalFactoryNode> astPatternNodeMap, PropertyEvalSpec propertyEvalSpec, FilterSpecRaw filterSpec)
{
// temporal fixed (start+end) and overlapping (initiated/terminated)
if (ctx.START() != null || ctx.INITIATED() != null)
{
ExprNode[] distinctExpressions = null;
if (ctx.createContextDistinct() != null)
{
if (ctx.createContextDistinct().expressionList() == null)
{
distinctExpressions = new ExprNode[0];
}
else
{
distinctExpressions = ASTExprHelper.ExprCollectSubNodesPerNode(ctx.createContextDistinct().expressionList().expression(), astExprNodeMap);
}
}
ContextDetailCondition startEndpoint;
if (ctx.START() != null)
{
bool immediate = CheckNow(ctx.i);
if (immediate)
{
startEndpoint = new ContextDetailConditionImmediate();
}
else
{
startEndpoint = GetContextCondition(ctx.r1, astExprNodeMap, astPatternNodeMap, propertyEvalSpec, false);
}
}
else
{
bool immediate = CheckNow(ctx.i);
startEndpoint = GetContextCondition(ctx.r1, astExprNodeMap, astPatternNodeMap, propertyEvalSpec, immediate);
}
bool overlapping = ctx.INITIATED() != null;
ContextDetailCondition endEndpoint = GetContextCondition(ctx.r2, astExprNodeMap, astPatternNodeMap, propertyEvalSpec, false);
return(new ContextDetailInitiatedTerminated(startEndpoint, endEndpoint, overlapping, distinctExpressions));
}
// partitioned
if (ctx.PARTITION() != null)
{
IList <EsperEPL2GrammarParser.CreateContextPartitionItemContext> partitions = ctx.createContextPartitionItem();
IList <ContextDetailPartitionItem> rawSpecs = new List <ContextDetailPartitionItem>();
foreach (EsperEPL2GrammarParser.CreateContextPartitionItemContext partition in partitions)
{
filterSpec = ASTFilterSpecHelper.WalkFilterSpec(partition.eventFilterExpression(), propertyEvalSpec, astExprNodeMap);
propertyEvalSpec = null;
IList <String> propertyNames = new List <String>();
IList <EsperEPL2GrammarParser.EventPropertyContext> properties = partition.eventProperty();
foreach (EsperEPL2GrammarParser.EventPropertyContext property in properties)
{
String propertyName = ASTUtil.GetPropertyName(property, 0);
propertyNames.Add(propertyName);
}
ASTExprHelper.ExprCollectSubNodes(partition, 0, astExprNodeMap); // remove expressions
rawSpecs.Add(new ContextDetailPartitionItem(filterSpec, propertyNames));
}
return(new ContextDetailPartitioned(rawSpecs));
}
// hash
else if (ctx.COALESCE() != null)
{
IList <EsperEPL2GrammarParser.CreateContextCoalesceItemContext> coalesces = ctx.createContextCoalesceItem();
IList <ContextDetailHashItem> rawSpecs = new List <ContextDetailHashItem>(coalesces.Count);
foreach (EsperEPL2GrammarParser.CreateContextCoalesceItemContext coalesce in coalesces)
{
ExprChainedSpec func = ASTLibFunctionHelper.GetLibFunctionChainSpec(coalesce.libFunctionNoClass(), astExprNodeMap);
filterSpec = ASTFilterSpecHelper.WalkFilterSpec(coalesce.eventFilterExpression(), propertyEvalSpec, astExprNodeMap);
propertyEvalSpec = null;
rawSpecs.Add(new ContextDetailHashItem(func, filterSpec));
}
String granularity = ctx.g.Text;
if (!granularity.ToLower().Equals("granularity"))
{
throw ASTWalkException.From("Expected 'granularity' keyword after list of coalesce items, found '" + granularity + "' instead");
}
var num = ASTConstantHelper.Parse(ctx.number());
String preallocateStr = ctx.p != null ? ctx.p.Text : null;
if (preallocateStr != null && !preallocateStr.ToLower().Equals("preallocate"))
{
throw ASTWalkException.From("Expected 'preallocate' keyword after list of coalesce items, found '" + preallocateStr + "' instead");
}
if (!num.GetType().IsNumericNonFP() || num.GetType().GetBoxedType() == typeof(long?))
{
throw ASTWalkException.From("Granularity provided must be an int-type number, received " + num.GetType() + " instead");
}
return(new ContextDetailHash(rawSpecs, num.AsInt(), preallocateStr != null));
}
// categorized
if (ctx.createContextGroupItem() != null)
{
IList <EsperEPL2GrammarParser.CreateContextGroupItemContext> grps = ctx.createContextGroupItem();
IList <ContextDetailCategoryItem> items = new List <ContextDetailCategoryItem>();
foreach (EsperEPL2GrammarParser.CreateContextGroupItemContext grp in grps)
{
ExprNode exprNode = ASTExprHelper.ExprCollectSubNodes(grp, 0, astExprNodeMap)[0];
String name = grp.i.Text;
items.Add(new ContextDetailCategoryItem(exprNode, name));
}
filterSpec = ASTFilterSpecHelper.WalkFilterSpec(ctx.eventFilterExpression(), propertyEvalSpec, astExprNodeMap);
return(new ContextDetailCategory(items, filterSpec));
}
throw new IllegalStateException("Unrecognized context detail type");
}
