CommonServletHandler.java 文件源码

public void scriptValidation(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    String content=req.getParameter("content");
    if(StringUtils.isNotBlank(content)){
        ScriptType type=ScriptType.valueOf(req.getParameter("type"));
        ANTLRInputStream antlrInputStream=new ANTLRInputStream(content);
        RuleParserLexer lexer=new RuleParserLexer(antlrInputStream);
        CommonTokenStream steam=new CommonTokenStream(lexer);
        RuleParserParser parser=new RuleParserParser(steam);
        parser.removeErrorListeners();
        ScriptErrorListener errorListener=new ScriptErrorListener();
        parser.addErrorListener(errorListener);
        switch(type){
        case Script:
            parser.ruleSet();
            break;
        case DecisionNode:
            parser.condition();
            break;
        case ScriptNode:
            parser.actions();

        }
        List<ErrorInfo> infos=errorListener.getInfos();
        writeObjectToJson(resp, infos);
    }
}