Adding 'for' loop with delay in kafka stre

Below is the code written to get the output as follows.

my input will be in the form of JSON arrays, to seperate JSON arrays into Json objects i wrote the following code

KStreamBuilder builder = new KStreamBuilder();
KStream<String, String> textlines = builder.stream("INTOPIC");
KStream<String, String> mstream = textlines
                .mapValues(value -> value.replace("[","" ) )
                .mapValues(value -> value.replace("]","" ) )
                .mapValues(value -> value.replaceAll("\\},\\{" ,"\\}\\},\\{\\{"))
                .flatMapValues(value -> Arrays.asList(value.split("\\},\\{")));
mstream.to("OUTTOPIC");
KafkaStreams streams = new KafkaStreams(builder, config);
streams.start();

The output of all JSON Objects in the input array are coming at once , but i want these JSON Objects to come one by one. Should i need to add delay if so how should i do it? Can you please help me in editing this code.

null    {"timestamp":"2017-12-05T13:52:43.560588466+05:30","namespace":"/intel/procfs/meminfo/active_anon","data":4183900160,"unit":"","tags":{"plugin_running_on":"AELAB110"},"version":4,"last_advertised_time":"2017-12-05T13:52:43.560658038+05:30"}
null    {"timestamp":"2017-12-05T13:52:43.560618652+05:30","namespace":"/intel/procfs/meminfo/mem_free","data":49385746432,"unit":"","tags":{"plugin_running_on":"AELAB110"},"version":4,"last_advertised_time":"2017-12-05T13:52:43.560660098+05:30"}
null    {"timestamp":"2017-12-05T13:52:43.560588466+05:30","namespace":"/intel/procfs/meminfo/active_anon","data":4183900160,"unit":"","tags":{"plugin_running_on":"AELAB110"},"version":4,"last_advertised_time":"2017-12-05T13:52:43.560658038+05:30"}
null    {"timestamp":"2017-12-05T13:52:43.560618652+05:30","namespace":"/intel/procfs/meminfo/mem_free","data":49385746432,"unit":"","tags":{"plugin_running_on":"AELAB110"},"version":4,"last_advertised_time":"2017-12-05T13:52:43.560660098+05:30"}

These json objects should come one after other so what should be there in my code

Thanks in advance.