public static PredicateJudge newInstance(final String operator) {
        return ExtensionLoader.getExtensionLoader(PredicateJudge.class).getJoin(processSpecialOperator(operator));
    }
New instance predicate judge.

@param operator the operator
@return the predicate judge
shenyu-plugin/shenyu-plugin-base/src/main/java/org/apache/shenyu/plugin/base/condition/judge/PredicateJudgeFactory.java