private QueryFilterParser.QueryContext GetContext(string text)
{
var inputStream = new AntlrInputStream(text);
var lexer = new QueryFilterLexer(inputStream);
var commonTokenStream = new CommonTokenStream(lexer);
var parser = new QueryFilterParser(commonTokenStream);
return(parser.query());
}
/// <summary>
/// In memory implementation of <see cref="ExecuteQuerySegmentedAsync{T}(TableQuery{T}, TableContinuationToken)"/>
/// </summary>
public override Task <TableQuerySegment <T> > ExecuteQuerySegmentedAsync <T>(TableQuery <T> query, TableContinuationToken token)
{
var inputStream = new AntlrInputStream(query.FilterString);
var lexer = new QueryFilterLexer(inputStream);
var commonTokenStream = new CommonTokenStream(lexer);
var parser = new QueryFilterParser(commonTokenStream);
var queryContext = parser.query();
var resultNode = new QueryFilterVisitor().Visit(queryContext) as InfixExpressionNode;
var astVisitor = new AstVisitor <T>();
var result = astVisitor.VisitInfix(resultNode, _table);
var resultList = new List <T>();
foreach (var key in result.Keys)
{
resultList.AddRange(result[key].Select(kvp => kvp.Value).Cast <T>().ToList());
}
var resultSegment = TableQueryFactory.Construct(resultList);
return(Task.FromResult(TableQueryFactory.Construct(resultSegment)));
}
