@Override
    public void execute(final CommandLine commandLine, final Options options,
        RPCHook rpcHook) throws SubCommandException {

        DefaultMQAdminExt defaultMQAdminExt = new DefaultMQAdminExt(rpcHook);
        defaultMQAdminExt.setInstanceName(Long.toString(System.currentTimeMillis()));

        try {
            defaultMQAdminExt.start();

            TopicConfig topicConfig = new TopicConfig();
            String topic;
            if (commandLine.hasOption('t')) {
                topic = commandLine.getOptionValue('t').trim();
            } else {
                System.out.printf("topic parameter value must be need.%n");
                return;
            }
            TopicRouteData topicRouteData = defaultMQAdminExt.examineTopicRouteInfo(topic);
            assert topicRouteData != null;
            List<QueueData> queueDatas = topicRouteData.getQueueDatas();
            assert queueDatas != null && queueDatas.size() > 0;
            QueueData queueData = queueDatas.get(0);
            topicConfig.setTopicName(topic);
            topicConfig.setWriteQueueNums(queueData.getWriteQueueNums());
            topicConfig.setReadQueueNums(queueData.getReadQueueNums());
            topicConfig.setTopicSysFlag(queueData.getTopicSysFlag());
            //new perm
            int perm;
            if (commandLine.hasOption('p')) {
                perm = Integer.parseInt(commandLine.getOptionValue('p').trim());
            } else {
                System.out.printf("perm parameter value must be need.%n");
                return;
            }
            topicConfig.setPerm(perm);
            if (commandLine.hasOption('b')) {
                String brokerAddr = commandLine.getOptionValue('b').trim();
                List<BrokerData> brokerDatas = topicRouteData.getBrokerDatas();
                String brokerName = null;
                for (BrokerData data : brokerDatas) {
                    HashMap<Long, String> brokerAddrs = data.getBrokerAddrs();
                    if (brokerAddrs == null || brokerAddrs.size() == 0) {
                        continue;
                    }
                    for (Map.Entry<Long, String> entry : brokerAddrs.entrySet()) {
                        if (brokerAddr.equals(entry.getValue()) && MixAll.MASTER_ID == entry.getKey()) {
                            brokerName = data.getBrokerName();
                            break;
                        }
                    }
                    if (brokerName != null) {
                        break;
                    }
                }

                if (brokerName != null) {
                    List<QueueData> queueDataList = topicRouteData.getQueueDatas();
                    assert queueDataList != null && queueDataList.size() > 0;
                    int oldPerm = 0;
                    for (QueueData data : queueDataList) {
                        if (brokerName.equals(data.getBrokerName())) {
                            oldPerm = data.getPerm();
                            if (perm == oldPerm) {
                                System.out.printf("new perm equals to the old one!%n");
                                return;
                            }
                            break;
                        }
                    }
                    defaultMQAdminExt.createAndUpdateTopicConfig(brokerAddr, topicConfig);
                    System.out.printf("update topic perm from %s to %s in %s success.%n", oldPerm, perm, brokerAddr);
                    System.out.printf("%s.%n", topicConfig);
                    return;
                } else {
                    System.out.printf("updateTopicPerm error broker not exit or broker is not master!.%n");
                    return;
                }

            } else if (commandLine.hasOption('c')) {
                String clusterName = commandLine.getOptionValue('c').trim();
                Set<String> masterSet =
                    CommandUtil.fetchMasterAddrByClusterName(defaultMQAdminExt, clusterName);
                for (String addr : masterSet) {
                    defaultMQAdminExt.createAndUpdateTopicConfig(addr, topicConfig);
                    System.out.printf("update topic perm from %s to %s in %s success.%n", queueData.getPerm(), perm, addr);
                }
                return;
            }
            ServerUtil.printCommandLineHelp("mqadmin " + this.commandName(), options);
        } catch (Exception e) {
            throw new SubCommandException(this.getClass().getSimpleName() + " command failed", e);
        } finally {
            defaultMQAdminExt.shutdown();
        }
    }
@Test
    public void testExecute() {
        UpdateTopicPermSubCommand cmd = new UpdateTopicPermSubCommand();
        Options options = ServerUtil.buildCommandlineOptions(new Options());
        String[] subargs = new String[] {"-b 127.0.0.1:10911", "-c default-cluster", "-t unit-test", "-p 6"};
        final CommandLine commandLine =
            ServerUtil.parseCmdLine("mqadmin " + cmd.commandName(), subargs,
                cmd.buildCommandlineOptions(options), new DefaultParser());
        assertThat(commandLine.getOptionValue('b').trim()).isEqualTo("127.0.0.1:10911");
        assertThat(commandLine.getOptionValue('c').trim()).isEqualTo("default-cluster");
        assertThat(commandLine.getOptionValue('t').trim()).isEqualTo("unit-test");
        assertThat(commandLine.getOptionValue('p').trim()).isEqualTo("6");

    }