public static List<RpcTypeEnum> acquireSupportMetadatas() {
        return Arrays.asList(RpcTypeEnum.HTTP, RpcTypeEnum.DUBBO, RpcTypeEnum.GRPC, RpcTypeEnum.SPRING_CLOUD, RpcTypeEnum.SOFA, RpcTypeEnum.TARS, RpcTypeEnum.MOTAN);
    }
acquire operator support Metadata RPC type.

@return operator support.
shenyu-common/src/main/java/org/apache/shenyu/common/enums/RpcTypeEnum.java