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);
}
public static IList<ColumnDesc> GetColTypeList(EsperEPL2GrammarParser.CreateColumnListContext ctx)
{
if (ctx == null)
{
return new EmptyList<ColumnDesc>();
}
IList<ColumnDesc> result = new List<ColumnDesc>(ctx.createColumnListElement().Length);
foreach (var colctx in ctx.createColumnListElement())
{
var colname = colctx.classIdentifier();
var name = ASTUtil.UnescapeClassIdent(colname);
var classIdent = ASTClassIdentifierHelper.Walk(colctx.classIdentifierWithDimensions());
result.Add(new ColumnDesc(name, classIdent?.ToEPL()));
}
return result;
}