private static GraphOperatorSpec ParseOp(
EsperEPL2GrammarParser.GopContext ctx,
IDictionary<ITree, object> astGraphNodeMap,
ImportServiceCompileTime importService)
{
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)
{
IDictionary<string, object> configs = new LinkedHashMap<string, object>();
IList<EsperEPL2GrammarParser.GopConfigContext> 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)
{
IList<EsperEPL2GrammarParser.AnnotationEnumContext> annoctxs = ctx.annotationEnum();
annotations = new List<AnnotationDesc>();
foreach (EsperEPL2GrammarParser.AnnotationEnumContext annoctx in annoctxs)
{
annotations.Add(ASTAnnotationHelper.Walk(annoctx, importService));
}
}
else
{
annotations = new EmptyList<AnnotationDesc>();
}
return new GraphOperatorSpec(operatorName, input, output, detail, annotations);
}
private static CreateTableColumn GetColumn(
EsperEPL2GrammarParser.CreateTableColumnContext ctx,
IDictionary<ITree, ExprNode> astExprNodeMap,
StatementSpecMapEnv mapEnv)
{
var columnName = ctx.n.Text;
ExprNode optExpression = null;
if (ctx.builtinFunc() != null || ctx.chainable() != null)
{
optExpression = ASTExprHelper.ExprCollectSubNodes(ctx, 0, astExprNodeMap)[0];
}
var optType = ASTClassIdentifierHelper.Walk(ctx.classIdentifierWithDimensions());
var primaryKey = false;
if (ctx.p != null)
{
if (!string.Equals(ctx.p.Text, "primary", StringComparison.InvariantCultureIgnoreCase))
{
throw ASTWalkException.From("Invalid keyword '" + ctx.p.Text + "' encountered, expected 'primary key'");
}
if (!string.Equals(ctx.k.Text, "key", StringComparison.InvariantCultureIgnoreCase))
{
throw ASTWalkException.From("Invalid keyword '" + ctx.k.Text + "' encountered, expected 'primary key'");
}
primaryKey = true;
}
IList<AnnotationDesc> annots = new EmptyList<AnnotationDesc>();
if (ctx.annotationEnum() != null)
{
annots = new List<AnnotationDesc>(ctx.annotationEnum().Length);
foreach (EsperEPL2GrammarParser.AnnotationEnumContext anctx in ctx.annotationEnum())
{
annots.Add(ASTAnnotationHelper.Walk(anctx, mapEnv.ImportService));
}
}
if (ctx.typeExpressionAnnotation() != null)
{
if (annots.IsEmpty())
{
annots = new List<AnnotationDesc>();
}
foreach (EsperEPL2GrammarParser.TypeExpressionAnnotationContext anno in ctx.typeExpressionAnnotation())
{
annots.Add(new AnnotationDesc(anno.n.Text, anno.v.Text));
}
}
return new CreateTableColumn(columnName, optExpression, optType, annots, primaryKey);
}
