private static GraphOperatorSpec ParseOp(EsperEPL2GrammarParser.GopContext ctx, IDictionary <ITree, Object> astGraphNodeMap, EngineImportService engineImportService)
{
var operatorName = ctx.opName != null ? ctx.opName.Text : ctx.s.Text;
var input = new GraphOperatorInput();
if (ctx.gopParams() != null)
{
ParseParams(ctx.gopParams(), input);
}
var output = new GraphOperatorOutput();
if (ctx.gopOut() != null)
{
ParseOutput(ctx.gopOut(), output);
}
GraphOperatorDetail detail = null;
if (ctx.gopDetail() != null)
{
var configs = new LinkedHashMap <String, Object>();
var cfgctxs = ctx.gopDetail().gopConfig();
foreach (var cfgctx in cfgctxs)
{
String name;
Object value = astGraphNodeMap.Delete(cfgctx);
if (cfgctx.n != null)
{
name = cfgctx.n.Text;
}
else
{
name = "select";
}
configs.Put(name, value);
}
detail = new GraphOperatorDetail(configs);
}
IList <AnnotationDesc> annotations;
if (ctx.annotationEnum() != null)
{
var annoctxs = ctx.annotationEnum();
annotations = annoctxs
.Select(annoctx => ASTAnnotationHelper.Walk(annoctx, engineImportService))
.ToList();
}
else
{
annotations = Collections.GetEmptyList <AnnotationDesc>();
}
return(new GraphOperatorSpec(operatorName, input, output, detail, annotations));
}
private static CreateTableColumn GetColumn(EsperEPL2GrammarParser.CreateTableColumnContext ctx, IDictionary <ITree, ExprNode> astExprNodeMap, EngineImportService engineImportService)
{
string columnName = ctx.n.Text;
ExprNode optExpression = null;
if (ctx.builtinFunc() != null || ctx.libFunction() != null)
{
optExpression = ASTExprHelper.ExprCollectSubNodes(ctx, 0, astExprNodeMap)[0];
}
string optTypeName = null;
bool? optTypeIsArray = null;
bool? optTypeIsPrimitiveArray = null;
if (ctx.createTableColumnPlain() != null)
{
EsperEPL2GrammarParser.CreateTableColumnPlainContext sub = ctx.createTableColumnPlain();
optTypeName = ASTUtil.UnescapeClassIdent(sub.classIdentifier());
optTypeIsArray = sub.b != null;
optTypeIsPrimitiveArray = ASTCreateSchemaHelper.ValidateIsPrimitiveArray(sub.p);
}
bool primaryKey = false;
if (ctx.p != null)
{
if (ctx.p.Text.ToLower() != "primary")
{
throw ASTWalkException.From("Invalid keyword '" + ctx.p.Text + "' encountered, expected 'primary key'");
}
if (ctx.k.Text.ToLower() != "key")
{
throw ASTWalkException.From("Invalid keyword '" + ctx.k.Text + "' encountered, expected 'primary key'");
}
primaryKey = true;
}
IList <AnnotationDesc> annots = Collections.GetEmptyList <AnnotationDesc>();
if (ctx.annotationEnum() != null)
{
annots = new List <AnnotationDesc>(ctx.annotationEnum().Length);
foreach (EsperEPL2GrammarParser.AnnotationEnumContext anctx in ctx.annotationEnum())
{
annots.Add(ASTAnnotationHelper.Walk(anctx, engineImportService));
}
}
if (ctx.propertyExpressionAnnotation() != null)
{
if (annots.IsEmpty())
{
annots = new List <AnnotationDesc>();
}
foreach (EsperEPL2GrammarParser.PropertyExpressionAnnotationContext anno in ctx.propertyExpressionAnnotation())
{
annots.Add(new AnnotationDesc(anno.n.Text, anno.v.Text));
}
}
return(new CreateTableColumn(columnName, optExpression, optTypeName, optTypeIsArray, optTypeIsPrimitiveArray, annots, primaryKey));
}