public static string GetPropertyName(
EsperEPL2GrammarParser.ChainableContext ctx,
int startNode)
{
var buf = new StringBuilder();
for (var i = startNode; i < ctx.ChildCount; i++)
{
var tree = ctx.GetChild(i);
buf.Append(tree.GetText());
}
return buf.ToString();
}
public static IList <Chainable> GetChainables(
EsperEPL2GrammarParser.ChainableContext ctx,
IDictionary <ITree, ExprNode> astExprNodeMap)
{
var chain = new List <Chainable>();
// handle root
var root = ctx.chainableRootWithOpt();
var optionalRoot = root.q != null;
var prop = root.chainableWithArgs();
chain.Add(GetChainable(prop, optionalRoot, astExprNodeMap));
AddChainablesInternal(ctx.chainableElements(), astExprNodeMap, chain);
if (chain.IsEmpty())
{
throw new ArgumentException("Empty chain");
}
return(chain);
}
public static void ProcessChainable(
EsperEPL2GrammarParser.ChainableContext ctx,
IDictionary <ITree, ExprNode> astExprNodeMap,
ContextCompileTimeDescriptor contextCompileTimeDescriptor,
StatementSpecMapEnv mapEnv,
StatementSpecRaw statementSpec,
ExpressionDeclDesc expressionDeclarations,
LazyAllocatedMap <HashableMultiKey, AggregationMultiFunctionForge> plugInAggregations,
IList <ExpressionScriptProvided> scriptExpressions)
{
// we first convert the event property into chain spec
IList <Chainable> chain = ASTChainSpecHelper.GetChainables(ctx, astExprNodeMap);
// process chain
StatementSpecMapContext mapContext = new StatementSpecMapContext(contextCompileTimeDescriptor, mapEnv, plugInAggregations, scriptExpressions);
mapContext.AddExpressionDeclarations(expressionDeclarations);
ExprNode node = ChainableWalkHelper.ProcessDot(false, true, chain, mapContext);
astExprNodeMap.Put(ctx, node);
mapContext.AddTo(statementSpec);
}
