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spring kafka

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Green Team answered on September 8, 2024 Popularity 3/10 Helpfulness 1/10

answer spring kafka

related windows c# find com port of usb serial device

spring kafka

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-1

public class Sender {

    public static void main(String[] args) {
        AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(Config.class);
        context.getBean(Sender.class).send("test", 42);
    }

    private final KafkaTemplate<Integer, String> template;

    public Sender(KafkaTemplate<Integer, String> template) {
        this.template = template;
    }

    public void send(String toSend, int key) {
        this.template.send("topic1", key, toSend);
    }

}

public class Listener {

    @KafkaListener(id = "listen1", topics = "topic1")
    public void listen1(String in) {
        System.out.println(in);
    }

}

@Configuration
@EnableKafka
public class Config {

    @Bean
    ConcurrentKafkaListenerContainerFactory<Integer, String>
                        kafkaListenerContainerFactory(ConsumerFactory<Integer, String> consumerFactory) {
        ConcurrentKafkaListenerContainerFactory<Integer, String> factory =
                                new ConcurrentKafkaListenerContainerFactory<>();
        factory.setConsumerFactory(consumerFactory);
        return factory;
    }

    @Bean
    public ConsumerFactory<Integer, String> consumerFactory() {
        return new DefaultKafkaConsumerFactory<>(consumerProps());
    }

    private Map<String, Object> consumerProps() {
        Map<String, Object> props = new HashMap<>();
        props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, "localhost:9092");
        props.put(ConsumerConfig.GROUP_ID_CONFIG, "group");
        props.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, IntegerDeserializer.class);
        props.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
        props.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest");
        // ...
        return props;
    }

    @Bean
    public Sender sender(KafkaTemplate<Integer, String> template) {
        return new Sender(template);
    }

    @Bean
    public Listener listener() {
        return new Listener();
    }

    @Bean
    public ProducerFactory<Integer, String> producerFactory() {
        return new DefaultKafkaProducerFactory<>(senderProps());
    }

    private Map<String, Object> senderProps() {
        Map<String, Object> props = new HashMap<>();
        props.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, "localhost:9092");
        props.put(ProducerConfig.LINGER_MS_CONFIG, 10);
        props.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, IntegerSerializer.class);
        props.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
        //...
        return props;
    }

    @Bean
    public KafkaTemplate<Integer, String> kafkaTemplate(ProducerFactory<Integer, String> producerFactory) {
        return new KafkaTemplate<>(producerFactory);
    }

}

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Popularity 3/10 Helpfulness 1/10 Language java

Source: docs.spring.io

Tags: java spring-kafka

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Contributed on Sep 08 2024

Green Team

0 Answers Avg Quality 2/10

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windows c# find com port of usb serial device

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using System.Management;
using Microsoft.Win32;

using (ManagementClass i_Entity = new ManagementClass("Win32_PnPEntity"))
{
    const String CUR_CTRL = "HKEY_LOCAL_MACHINE\\System\\CurrentControlSet\\";

    foreach (ManagementObject i_Inst in i_Entity.GetInstances())
    {
        Object o_Guid = i_Inst.GetPropertyValue("ClassGuid");
        if (o_Guid == null || o_Guid.ToString().ToUpper() != "{4D36E978-E325-11CE-BFC1-08002BE10318}")
            continue; // Skip all devices except device class "PORTS"

        String s_Caption  = i_Inst.GetPropertyValue("Caption")     .ToString();
        String s_Manufact = i_Inst.GetPropertyValue("Manufacturer").ToString();
        String s_DeviceID = i_Inst.GetPropertyValue("PnpDeviceID") .ToString();
        String s_RegEnum  = CUR_CTRL + "Enum\\" + s_DeviceID + "\\Device Parameters";
        String s_RegServ  = CUR_CTRL + "Services\\BTHPORT\\Parameters\\Devices\\";
        String s_PortName = Registry.GetValue(s_RegEnum, "PortName", "").ToString();
        String s_BT_Dir   = null; // Bluetooth port direction
        String s_BT_Dev   = "";   // Bluetooth paired device name
        String s_BT_MAC   = "";   // Bluetooth paired device MAC address

        int s32_Pos = s_Caption.IndexOf(" (COM");
        if (s32_Pos > 0) // remove COM port from description
            s_Caption = s_Caption.Substring(0, s32_Pos);

        Console.WriteLine("Port Name:      " + s_PortName);
        Console.WriteLine("Description:    " + s_Caption);
        Console.WriteLine("Manufacturer:   " + s_Manufact);
        Console.WriteLine("Device ID:      " + s_DeviceID);

        if (s_DeviceID.StartsWith("BTHENUM\\")) // Bluetooth
        {
            s_BT_Dir = "Incoming";

            // "{00001101-0000-1000-8000-00805f9b34fb}#7445CEA614BC_C00000000"
            String s_UniqueID = Registry.GetValue(s_RegEnum, "Bluetooth_UniqueID", "").ToString();

            String[] s_Split = s_UniqueID.Split('#');
            if (s_Split.Length == 2)
            {
                s_Split = s_Split[1].Split('_');

                // Ignore MAC = "000000000000"
                if (s_Split.Length == 2 && s_Split[0].Trim('0').Length > 0) 
                {
                    s_BT_MAC = s_Split[0]; // 12 digits: "7445CEA614BC"
                    s_BT_Dir = "Outgoing";

                    // Read the Bluetooth device that is paired with the COM port.
                    Object o_BtDevice = Registry.GetValue(s_RegServ + s_BT_MAC, "Name", null);
                    if (o_BtDevice is Byte[])
                        s_BT_Dev = Encoding.UTF8.GetString((Byte[])o_BtDevice);
                }
            }

            Console.WriteLine("Port Direction: " + s_BT_Dir);
            Console.WriteLine("Paired Device:  " + s_BT_Dev);
            Console.WriteLine("Device MAC Adr: " + s_BT_MAC);
        }

        Console.WriteLine("-----------------------------------");
    }
}

Popularity 6/10 Helpfulness 1/10 Language csharp

Source: stackoverflow.com

Tags: c# com-port device find usb windows com-po

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Contributed on Sep 08 2024

Blue Baboon

0 Answers Avg Quality 2/10

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