OQLFilterBuilder.java 文件源码

private static ParseContext parse(String expression) {
    OQLLexer lexer = new OQLLexer(new ANTLRInputStream(expression));
    OQLParser parser = new OQLParser(new CommonTokenStream(lexer));
    parser.addErrorListener(new BaseErrorListener() {
        @Override
        public void syntaxError(Recognizer<?, ?> recognizer, Object offendingSymbol, int line, int charPositionInLine, String msg, RecognitionException e) {
            throw new IllegalStateException("failed to parse at line " + line + " due to " + msg, e);
        }
    });
    return parser.parse();

}