public override CodegenExpression EvaluateGetBeanCodegen(
CodegenMethodScope parent,
ExprSubselectEvalMatchSymbol symbols,
CodegenClassScope classScope)
{
var method = parent.MakeChild(typeof(EventBean), this.GetType(), classScope);
if (subselect.SelectClause == null) {
if (subselect.FilterExpr == null) {
method
.Block
.IfCondition(
Relational(
ExprDotName(
symbols.GetAddMatchingEvents(method),
"Count"),
CodegenExpressionRelational.CodegenRelational.GT,
Constant(1)))
.BlockReturn(ConstantNull())
.ApplyTri(DECLARE_EVENTS_SHIFTED, method, symbols)
.MethodReturn(StaticMethod(typeof(EventBeanUtility), "GetNonemptyFirstEvent", symbols.GetAddMatchingEvents(method)));
return LocalMethod(method);
}
CodegenExpression filterX = ExprNodeUtilityCodegen.CodegenEvaluator(
subselect.FilterExpr,
method,
GetType(),
classScope);
method
.Block
.ApplyTri(DECLARE_EVENTS_SHIFTED, method, symbols)
.DeclareVar(
typeof(EventBean),
"subSelectResult",
StaticMethod(
typeof(EventBeanUtility),
"EvaluateFilterExpectSingleMatch",
REF_EVENTS_SHIFTED,
symbols.GetAddIsNewData(method),
symbols.GetAddMatchingEvents(method),
symbols.GetAddExprEvalCtx(method),
filterX))
.MethodReturn(Ref("subSelectResult"));
return LocalMethod(method);
}
var eventBeanSvc =
classScope.AddOrGetDefaultFieldSharable(EventBeanTypedEventFactoryCodegenField.INSTANCE);
var typeMember = classScope.AddDefaultFieldUnshared(
true,
typeof(EventType),
EventTypeUtility.ResolveTypeCodegen(
subselect.subselectMultirowType,
EPStatementInitServicesConstants.REF));
if (subselect.FilterExpr == null) {
method.Block
.ApplyTri(DECLARE_EVENTS_SHIFTED, method, symbols)
.AssignArrayElement(
REF_EVENTS_SHIFTED,
Constant(0),
StaticMethod(
typeof(EventBeanUtility),
"GetNonemptyFirstEvent",
symbols.GetAddMatchingEvents(method)))
.DeclareVar<IDictionary<string, object>>(
"row",
LocalMethod(
subselect.EvaluateRowCodegen(method, classScope),
REF_EVENTS_SHIFTED,
ConstantTrue(),
symbols.GetAddExprEvalCtx(method)))
.DeclareVar<EventBean>(
"bean",
ExprDotMethod(eventBeanSvc, "AdapterForTypedMap", Ref("row"), typeMember))
.MethodReturn(Ref("bean"));
return LocalMethod(method);
}
var filter = ExprNodeUtilityCodegen.CodegenEvaluator(
subselect.FilterExpr,
method,
this.GetType(),
classScope);
method.Block
.ApplyTri(DECLARE_EVENTS_SHIFTED, method, symbols)
.DeclareVar<EventBean>(
"subSelectResult",
StaticMethod(
typeof(EventBeanUtility),
"EvaluateFilterExpectSingleMatch",
REF_EVENTS_SHIFTED,
symbols.GetAddIsNewData(method),
symbols.GetAddMatchingEvents(method),
symbols.GetAddExprEvalCtx(method),
filter))
.IfRefNullReturnNull("subselectResult")
.DeclareVar<IDictionary<string, object>>(
"row",
LocalMethod(
subselect.EvaluateRowCodegen(method, classScope),
REF_EVENTS_SHIFTED,
ConstantTrue(),
symbols.GetAddExprEvalCtx(method)))
.DeclareVar<EventBean>(
"bean",
ExprDotMethod(eventBeanSvc, "AdapterForTypedMap", Ref("row"), typeMember))
.MethodReturn(Ref("bean"));
return LocalMethod(method);
}
public override CodegenExpression EvaluateCodegen(
CodegenMethodScope parent,
ExprSubselectEvalMatchSymbol symbols,
CodegenClassScope classScope)
{
var method = parent.MakeChild(subselect.EvaluationType, this.GetType(), classScope);
if (subselect.FilterExpr == null) {
method.Block
.IfCondition(
Relational(
ExprDotName(symbols.GetAddMatchingEvents(method), "Count"),
CodegenExpressionRelational.CodegenRelational.GT,
Constant(1)))
.BlockReturn(ConstantNull());
if (subselect.SelectClause == null) {
method.Block.MethodReturn(
FlexCast(
subselect.EvaluationType,
StaticMethod(
typeof(EventBeanUtility),
"GetNonemptyFirstEventUnderlying",
symbols.GetAddMatchingEvents(method))));
return LocalMethod(method);
}
else {
method.Block.ApplyTri(DECLARE_EVENTS_SHIFTED, method, symbols)
.AssignArrayElement(
REF_EVENTS_SHIFTED,
Constant(0),
StaticMethod(
typeof(EventBeanUtility),
"GetNonemptyFirstEvent",
symbols.GetAddMatchingEvents(method)));
}
}
else {
method.Block.ApplyTri(DECLARE_EVENTS_SHIFTED, method, symbols);
method.Block.DeclareVar<EventBean>("filtered", ConstantNull());
var @foreach = method.Block.ForEach(
typeof(EventBean),
"@event",
symbols.GetAddMatchingEvents(method));
{
@foreach.AssignArrayElement(REF_EVENTS_SHIFTED, Constant(0), Ref("@event"));
var filter = CodegenLegoMethodExpression.CodegenExpression(subselect.FilterExpr, method, classScope, true);
CodegenLegoBooleanExpression.CodegenContinueIfNotNullAndNotPass(
@foreach,
typeof(bool?),
LocalMethod(
filter,
REF_EVENTS_SHIFTED,
symbols.GetAddIsNewData(method),
symbols.GetAddExprEvalCtx(method)));
@foreach
.IfCondition(NotEqualsNull(Ref("filtered")))
.BlockReturn(ConstantNull())
.AssignRef("filtered", Ref("@event"));
}
if (subselect.SelectClause == null) {
method.Block
.IfRefNullReturnNull("filtered")
.MethodReturn(Cast(subselect.EvaluationType, ExprDotUnderlying(Ref("filtered"))));
return LocalMethod(method);
}
method.Block
.IfRefNullReturnNull("filtered")
.AssignArrayElement(REF_EVENTS_SHIFTED, Constant(0), Ref("filtered"));
}
var selectClause = GetSelectClauseExpr(method, symbols, classScope);
method.Block.MethodReturn(selectClause);
return LocalMethod(method);
}
public override CodegenExpression EvaluateGetCollEventsCodegen(
CodegenMethodScope parent,
ExprSubselectEvalMatchSymbol symbols,
CodegenClassScope classScope)
{
if (subselect.FilterExpr == null) {
if (subselect.SelectClause == null) {
return symbols.GetAddMatchingEvents(parent);
}
else {
if (subselect.subselectMultirowType == null) {
var eval = ((ExprIdentNode) subselect.SelectClause[0]).ExprEvaluatorIdent;
var method = parent.MakeChild(
typeof(FlexCollection),
this.GetType(),
classScope);
method.Block.DeclareVar<ICollection<EventBean>>(
"events",
NewInstance<ArrayDeque<EventBean>>(
ExprDotName(symbols.GetAddMatchingEvents(method), "Count")));
var @foreach = method.Block.ForEach(
typeof(EventBean),
"@event",
symbols.GetAddMatchingEvents(method));
{
@foreach.DeclareVar<EventBean>(
"fragment",
CodegenLegoCast.CastSafeFromObjectType(
typeof(EventBean),
eval.Getter.EventBeanFragmentCodegen(Ref("@event"), method, classScope)))
.IfRefNull("fragment")
.BlockContinue()
.ExprDotMethod(Ref("events"), "Add", Ref("fragment"));
}
method.Block.MethodReturn(FlexWrap(Ref("events")));
return LocalMethod(method);
}
// when selecting a combined output row that contains multiple fields
var methodX = parent.MakeChild(typeof(FlexCollection), this.GetType(), classScope);
var fieldEventType = classScope.AddDefaultFieldUnshared(
true,
typeof(EventType),
EventTypeUtility.ResolveTypeCodegen(
subselect.subselectMultirowType,
EPStatementInitServicesConstants.REF));
var eventBeanSvc =
classScope.AddOrGetDefaultFieldSharable(EventBeanTypedEventFactoryCodegenField.INSTANCE);
methodX.Block
.DeclareVar<ICollection<EventBean>>(
"result",
NewInstance<ArrayDeque<EventBean>>(
ExprDotName(symbols.GetAddMatchingEvents(methodX), "Count")))
.ApplyTri(DECLARE_EVENTS_SHIFTED, methodX, symbols);
var foreachX = methodX.Block.ForEach(
typeof(EventBean),
"@event",
symbols.GetAddMatchingEvents(methodX));
{
foreachX.AssignArrayElement(REF_EVENTS_SHIFTED, Constant(0), Ref("@event"))
.DeclareVar<IDictionary<string, object>>(
"row",
LocalMethod(
subselect.EvaluateRowCodegen(methodX, classScope),
REF_EVENTS_SHIFTED,
ConstantTrue(),
symbols.GetAddExprEvalCtx(methodX)))
.DeclareVar<EventBean>(
"rowEvent",
ExprDotMethod(eventBeanSvc, "AdapterForTypedMap", Ref("row"), fieldEventType))
.ExprDotMethod(Ref("result"), "Add", Ref("rowEvent"));
}
methodX.Block.MethodReturn(FlexWrap(Ref("result")));
return LocalMethod(methodX);
}
}
if (subselect.SelectClause != null) {
return ConstantNull();
}
// handle filtered
var methodY = parent.MakeChild(typeof(FlexCollection), this.GetType(), classScope);
methodY.Block.ApplyTri(DECLARE_EVENTS_SHIFTED, methodY, symbols);
methodY.Block.DeclareVar<ArrayDeque<EventBean>>("filtered", ConstantNull());
var foreachY = methodY.Block.ForEach(
typeof(EventBean),
"@event",
symbols.GetAddMatchingEvents(methodY));
{
foreachY.AssignArrayElement(REF_EVENTS_SHIFTED, Constant(0), Ref("@event"));
var filter = CodegenLegoMethodExpression.CodegenExpression(subselect.FilterExpr, methodY, classScope, true);
CodegenLegoBooleanExpression.CodegenContinueIfNullOrNotPass(
foreachY,
typeof(bool?),
LocalMethod(
filter,
REF_EVENTS_SHIFTED,
symbols.GetAddIsNewData(methodY),
symbols.GetAddExprEvalCtx(methodY)));
foreachY.IfCondition(EqualsNull(Ref("filtered")))
.AssignRef("filtered", NewInstance(typeof(ArrayDeque<EventBean>)))
.BlockEnd()
.ExprDotMethod(Ref("filtered"), "Add", Ref("@event"));
}
methodY.Block.MethodReturn(FlexWrap(Ref("filtered")));
return LocalMethod(methodY);
}
public CodegenExpression EvaluateTypableSinglerowCodegen(
CodegenMethodScope parent,
ExprSubselectEvalMatchSymbol symbols,
CodegenClassScope classScope)
{
if (subselect.SelectClause == null) {
return ConstantNull(); // no select-clause
}
var method = parent.MakeChild(typeof(object[]), GetType(), classScope);
if (subselect.FilterExpr == null) {
method.Block
.ApplyTri(SubselectForgeCodegenUtil.DECLARE_EVENTS_SHIFTED, method, symbols)
.AssignArrayElement(
REF_EVENTS_SHIFTED,
Constant(0),
StaticMethod(
typeof(EventBeanUtility),
"GetNonemptyFirstEvent",
symbols.GetAddMatchingEvents(method)));
}
else {
var filter = ExprNodeUtilityCodegen.CodegenEvaluator(
subselect.FilterExpr,
method,
GetType(),
classScope);
method.Block
.ApplyTri(SubselectForgeCodegenUtil.DECLARE_EVENTS_SHIFTED, method, symbols)
.DeclareVar<EventBean>(
"subselectResult",
StaticMethod(
typeof(EventBeanUtility),
"EvaluateFilterExpectSingleMatch",
REF_EVENTS_SHIFTED,
symbols.GetAddIsNewData(method),
symbols.GetAddMatchingEvents(method),
symbols.GetAddExprEvalCtx(method),
filter))
.IfRefNullReturnNull("subselectResult")
.AssignArrayElement(REF_EVENTS_SHIFTED, Constant(0), Ref("subselectResult"));
}
method.Block.DeclareVar<object[]>(
"results",
NewArrayByLength(typeof(object), Constant(subselect.SelectClause.Length)));
for (var i = 0; i < subselect.SelectClause.Length; i++) {
var eval = CodegenLegoMethodExpression.CodegenExpression(subselect.SelectClause[i].Forge, method, classScope, true);
method.Block.AssignArrayElement(
"results",
Constant(i),
LocalMethod(
eval,
REF_EVENTS_SHIFTED,
symbols.GetAddIsNewData(method),
symbols.GetAddExprEvalCtx(method)));
}
method.Block.MethodReturn(Ref("results"));
return LocalMethod(method);
}
public CodegenExpression EvaluateTypableMultirowCodegen(
CodegenMethodScope parent,
ExprSubselectEvalMatchSymbol symbols,
CodegenClassScope classScope)
{
if (subselect.SelectClause == null) {
return ConstantNull();
}
if (subselect.FilterExpr == null) {
var method = parent.MakeChild(typeof(object[][]), GetType(), classScope);
method.Block
.DeclareVar<object[][]>(
"rows",
NewArrayByLength(typeof(object[]), ExprDotName(symbols.GetAddMatchingEvents(method), "Count")))
.DeclareVar<int>("index", Constant(-1))
.ApplyTri(SubselectForgeCodegenUtil.DECLARE_EVENTS_SHIFTED, method, symbols);
var foreachEvent = method.Block.ForEach(
typeof(EventBean),
"@event",
symbols.GetAddMatchingEvents(method));
{
foreachEvent
.Increment("index")
.AssignArrayElement(REF_EVENTS_SHIFTED, Constant(0), Ref("@event"))
.DeclareVar<object[]>(
"results",
NewArrayByLength(typeof(object), Constant(subselect.SelectClause.Length)))
.AssignArrayElement("rows", Ref("index"), Ref("results"));
for (var i = 0; i < subselect.SelectClause.Length; i++) {
var eval = CodegenLegoMethodExpression.CodegenExpression(subselect.SelectClause[i].Forge, method, classScope, true);
foreachEvent.AssignArrayElement(
"results",
Constant(i),
LocalMethod(
eval,
REF_EVENTS_SHIFTED,
symbols.GetAddIsNewData(method),
symbols.GetAddExprEvalCtx(method)));
}
}
method.Block.MethodReturn(Ref("rows"));
return LocalMethod(method);
}
else {
var method = parent.MakeChild(typeof(object[][]), GetType(), classScope);
method.Block
.DeclareVar<ArrayDeque<object[]>>("rows", NewInstance(typeof(ArrayDeque<object[]>)))
.ApplyTri(SubselectForgeCodegenUtil.DECLARE_EVENTS_SHIFTED, method, symbols);
var foreachEvent = method.Block.ForEach(
typeof(EventBean),
"@event",
symbols.GetAddMatchingEvents(method));
{
foreachEvent.AssignArrayElement(REF_EVENTS_SHIFTED, Constant(0), Ref("@event"));
var filter = CodegenLegoMethodExpression.CodegenExpression(subselect.FilterExpr, method, classScope, true);
CodegenLegoBooleanExpression.CodegenContinueIfNullOrNotPass(
foreachEvent,
typeof(bool?),
LocalMethod(
filter,
REF_EVENTS_SHIFTED,
symbols.GetAddIsNewData(method),
symbols.GetAddExprEvalCtx(method)));
foreachEvent
.DeclareVar<object[]>(
"results",
NewArrayByLength(typeof(object), Constant(subselect.SelectClause.Length)))
.ExprDotMethod(Ref("rows"), "Add", Ref("results"));
for (var i = 0; i < subselect.SelectClause.Length; i++) {
var eval = CodegenLegoMethodExpression.CodegenExpression(subselect.SelectClause[i].Forge, method, classScope, true);
foreachEvent.AssignArrayElement(
"results",
Constant(i),
LocalMethod(
eval,
REF_EVENTS_SHIFTED,
symbols.GetAddIsNewData(method),
symbols.GetAddExprEvalCtx(method)));
}
}
method.Block
.IfCondition(ExprDotMethod(Ref("rows"), "IsEmpty"))
.BlockReturn(EnumValue(typeof(CollectionUtil), "OBJECTARRAYARRAY_EMPTY"))
.MethodReturn(ExprDotMethod(Ref("rows"), "ToArray"));
return LocalMethod(method);
}
}
public override CodegenExpression EvaluateCodegen(
CodegenMethodScope parent,
ExprSubselectEvalMatchSymbol symbols,
CodegenClassScope classScope)
{
CodegenExpression aggService = classScope.NamespaceScope.AddOrGetDefaultFieldWellKnown(
new CodegenFieldNameSubqueryAgg(subselect.SubselectNumber),
typeof(AggregationResultFuture));
var method = parent.MakeChild(subselect.EvaluationType, GetType(), classScope);
var evalCtx = symbols.GetAddExprEvalCtx(method);
method.Block
.DeclareVar<int>("cpid", ExprDotName(evalCtx, "AgentInstanceId"))
.DeclareVar<AggregationService>(
"aggregationService",
ExprDotMethod(aggService, "GetContextPartitionAggregationService", Ref("cpid")))
.DeclareVar<ICollection<object>>(
"groupKeys",
ExprDotMethod(Ref("aggregationService"), "GetGroupKeys", evalCtx))
.IfCondition(ExprDotMethod(Ref("groupKeys"), "IsEmpty"))
.BlockReturn(ConstantNull())
.ApplyTri(DECLARE_EVENTS_SHIFTED, method, symbols)
.DeclareVar<bool>("haveResult", ConstantFalse())
.DeclareVar<object>("groupKeyMatch", ConstantNull());
var forEach = method.Block.ForEach(typeof(object), "groupKey", Ref("groupKeys"));
{
var havingExpr = CodegenLegoMethodExpression.CodegenExpression(subselect.HavingExpr, method, classScope, true);
CodegenExpression havingCall = LocalMethod(
havingExpr,
REF_EVENTS_SHIFTED,
symbols.GetAddIsNewData(method),
evalCtx);
forEach.ExprDotMethod(
Ref("aggregationService"),
"SetCurrentAccess",
Ref("groupKey"),
Ref("cpid"),
ConstantNull())
.DeclareVar<bool?>("pass", Cast(typeof(bool?), havingCall))
.IfCondition(And(NotEqualsNull(Ref("pass")), Unbox(Ref("pass"))))
.IfCondition(Ref("haveResult"))
.BlockReturn(ConstantNull())
.AssignRef("groupKeyMatch", Ref("groupKey"))
.AssignRef("haveResult", ConstantTrue());
}
method.Block.IfCondition(EqualsNull(Ref("groupKeyMatch")))
.BlockReturn(ConstantNull())
.ExprDotMethod(
Ref("aggregationService"),
"SetCurrentAccess",
Ref("groupKeyMatch"),
Ref("cpid"),
ConstantNull());
if (subselect.SelectClause.Length == 1) {
var eval = CodegenLegoMethodExpression.CodegenExpression(subselect.SelectClause[0].Forge, method, classScope, true);
method.Block.MethodReturn(
LocalMethod(eval, REF_EVENTS_SHIFTED, ConstantTrue(), symbols.GetAddExprEvalCtx(method)));
}
else {
var methodSelect = ExprNodeUtilityCodegen.CodegenMapSelect(
subselect.SelectClause,
subselect.SelectAsNames,
GetType(),
method,
classScope);
CodegenExpression select = LocalMethod(
methodSelect,
REF_EVENTS_SHIFTED,
ConstantTrue(),
symbols.GetAddExprEvalCtx(method));
method.Block.MethodReturn(select);
}
return LocalMethod(method);
}
public override CodegenExpression EvaluateGetCollEventsCodegen(
CodegenMethodScope parent,
ExprSubselectEvalMatchSymbol symbols,
CodegenClassScope classScope)
{
CodegenExpression aggService = classScope.NamespaceScope.AddOrGetDefaultFieldWellKnown(
new CodegenFieldNameSubqueryAgg(subselect.SubselectNumber),
typeof(AggregationResultFuture));
var factory = classScope.AddOrGetDefaultFieldSharable(EventBeanTypedEventFactoryCodegenField.INSTANCE);
var subselectMultirowType = classScope.AddDefaultFieldUnshared(
false,
typeof(EventType),
EventTypeUtility.ResolveTypeCodegen(
subselect.subselectMultirowType,
EPStatementInitServicesConstants.REF));
var method = parent.MakeChild(typeof(FlexCollection), GetType(), classScope);
var evalCtx = symbols.GetAddExprEvalCtx(method);
method.Block
.DeclareVar<int>("cpid", ExprDotName(evalCtx, "AgentInstanceId"))
.DeclareVar<AggregationService>(
"aggregationService",
ExprDotMethod(aggService, "GetContextPartitionAggregationService", Ref("cpid")))
.DeclareVar<ICollection<object>>(
"groupKeys",
ExprDotMethod(Ref("aggregationService"), "GetGroupKeys", evalCtx))
.IfCondition(ExprDotMethod(Ref("groupKeys"), "IsEmpty"))
.BlockReturn(ConstantNull())
.ApplyTri(DECLARE_EVENTS_SHIFTED, method, symbols)
.DeclareVar<ICollection<EventBean>>(
"result",
NewInstance<ArrayDeque<EventBean>>(ExprDotName(Ref("groupKeys"), "Count")));
var forEach = method.Block.ForEach(typeof(object), "groupKey", Ref("groupKeys"));
{
var havingExpr = CodegenLegoMethodExpression.CodegenExpression(subselect.HavingExpr, method, classScope, true);
CodegenExpression havingCall = LocalMethod(
havingExpr,
REF_EVENTS_SHIFTED,
symbols.GetAddIsNewData(method),
evalCtx);
forEach
.ExprDotMethod(
Ref("aggregationService"),
"SetCurrentAccess",
Ref("groupKey"),
Ref("cpid"),
ConstantNull())
.DeclareVar<bool?>("pass", Cast(typeof(bool?), havingCall))
.IfCondition(And(NotEqualsNull(Ref("pass")), Unbox(Ref("pass"))))
.DeclareVar<IDictionary<string, object>>(
"row",
LocalMethod(
subselect.EvaluateRowCodegen(method, classScope),
REF_EVENTS_SHIFTED,
ConstantTrue(),
symbols.GetAddExprEvalCtx(method)))
.DeclareVar<EventBean>(
"@event",
ExprDotMethod(factory, "AdapterForTypedMap", Ref("row"), subselectMultirowType))
.ExprDotMethod(Ref("result"), "Add", Ref("@event"));
}
method.Block.MethodReturn(FlexWrap(Ref("result")));
return LocalMethod(method);
}