public static EPLTreeWalkerListener ParseAndWalkPattern(String expression)
{
Log.Debug(".parseAndWalk Trying text=" + expression);
Pair <ITree, CommonTokenStream> ast = SupportParserHelper.ParsePattern(expression);
Log.Debug(".parseAndWalk success, tree walking...");
SupportParserHelper.DisplayAST(ast.First);
EPLTreeWalkerListener listener = SupportEPLTreeWalkerFactory.MakeWalker(ast.Second);
ParseTreeWalker walker = new ParseTreeWalker();
walker.Walk(listener, (IParseTree)ast.First);
return(listener);
}
public static EPLTreeWalkerListener ParseAndWalkEPL(String expression, EngineImportService engineImportService, VariableService variableService)
{
Log.Debug(".parseAndWalk Trying text=" + expression);
Pair <ITree, CommonTokenStream> ast = SupportParserHelper.ParseEPL(expression);
Log.Debug(".parseAndWalk success, tree walking...");
SupportParserHelper.DisplayAST(ast.First);
EventAdapterService eventAdapterService = SupportEventAdapterService.Service;
eventAdapterService.AddBeanType("SupportBean_N", typeof(SupportBean_N), true, true, true);
EPLTreeWalkerListener listener = SupportEPLTreeWalkerFactory.MakeWalker(ast.Second, engineImportService, variableService);
ParseTreeWalker walker = new ParseTreeWalker(); // create standard walker
walker.Walk(listener, (IParseTree)ast.First); // initiate walk of tree with listener
return(listener);
}