private static TwoTuple buildClientAddresses()

in src/main/java/org/apache/rocketmq/exporter/task/MetricsCollectTask.java [695:709]

• 14 lines of code
• 4 McCabe index (conditional complexity)

    private static TwoTuple<String, String> buildClientAddresses(HashSet<Connection> connectionSet) {
        if (connectionSet == null || connectionSet.isEmpty()) {
            return new TwoTuple<>("", "");
        }
        List<String> clientAddresses = new ArrayList<>();
        List<String> clientIdAddresses = new ArrayList<>();

        for (Connection connection : connectionSet) {
            clientAddresses.add(connection.getClientAddr());//tcp connect address
            clientIdAddresses.add(connection.getClientId());//local ip
        }
        String str1 = String.join(",", clientAddresses);
        String str2 = String.join(",", clientIdAddresses);
        return new TwoTuple<>(str1, str2);
    }