BifroMQ: Five minutes to understand Baidu's open source message middleware

 

 

BifroMQ is not an independent company, but a product developed by a company called "Bifrost". Founded in 2014 and headquartered in Beijing, China, Bifrost is a company focused on open source technology. At that time, Chen Ming, the founder of Bifrost, launched the open source project "iProven", aiming to develop a high-performance distributed database. Later, this project gradually evolved into the current BifroMQ.

The development team of BifroMQ consists of a group of experienced engineers. It is an open source, distributed, and scalable message queuing system designed to provide enterprises with highly available, high-performance, and scalable messaging solutions. BifroMQ is designed with flexibility and scalability in mind, and can handle large amounts of data and concurrent connections. It is based on a publish/subscribe model and supports several messaging protocols such as MQTT, STOMP, and AMQP.

The core advantages of BifroMQ include:

  1. High availability: BifroMQ supports multiple broker nodes, which can form a cluster. When a proxy node fails, other proxy nodes can take over its responsibilities to ensure no loss of messages and availability of the system.
  2. High performance: BifroMQ is optimized for high-performance scenarios and can handle a large number of concurrent connections and data. It employs techniques such as connection multiplexing, batch sending, and prefetching to improve performance and reduce system resource usage.
  3. Scalability: BifroMQ can be easily extended to multiple nodes to handle more concurrent connections and data. By adding proxy nodes or expanding the cluster size, the needs of business growth can be met.
  4. Flexible messaging protocol support: BifroMQ supports multiple messaging protocols, including MQTT, STOMP, and AMQP. This allows it to be integrated with various applications and platforms for different needs.
  5. Rich functions and features: BifroMQ provides some additional functions and features, such as message persistence, message confirmation mechanism, message filtering and security authentication, etc. These functions can improve the reliability and security of the system and meet more complex application scenarios.

BifroMQ is a powerful, high-performance, and scalable message queuing system, suitable for enterprise-level application scenarios that require high availability, high performance, and scalability. Whether in the Internet of Things, real-time communication, big data processing or other fields, BifroMQ can provide reliable and efficient messaging solutions.

BifroMQ is suitable for various IoT scenarios, including but not limited to smart home, industrial IoT, Internet of Vehicles, and smart cities. It is also suitable for other enterprise-level application scenarios, such as real-time communication, big data processing and system integration, etc.

The basic usage of BifroMQ includes the following steps:

  1. Import BifroMQ dependent libraries and configuration files.
  2. Create a BifroMQ client object and connect to the BifroMQ server.
  3. Create a message sending object and specify the destination address or subject of the message.
  4. Write the message content into the send object, and use BifroMQ's send method to send the message to the server.
  5. Create a message receiving object, and specify a callback function or processing method for receiving messages.
  6. Register the receiving object with the BifroMQ server to receive messages.
  7. Use receive objects in your application to receive and process messages.

It should be noted that BifroMQ supports several messaging protocols such as MQTT, STOMP and AMQP. According to different application scenarios and requirements, you can choose a suitable protocol to send and receive messages.

In addition, BifroMQ also provides some advanced functions and features, such as message persistence, message confirmation mechanism, message filtering and security authentication, etc. These functions can improve the reliability and security of the system and meet more complex application scenarios.

BifroMQ integration:
If you want to directly integrate BifroMQ with your product, you can consider the following:

  • Client library: Use the client library provided by BifroMQ to send and receive messages conveniently in your application. This can be achieved by introducing BifroMQ dependencies and configuration files.
  • Connection management: Make sure your application can establish a stable and secure connection with the BifroMQ server. You can use the connection management functions provided by BifroMQ to handle connection establishment, maintenance and closing.
  • Messaging: According to your needs, use the messaging function provided by BifroMQ to send and receive messages. You can use protocols such as MQTT, STOMP, and AMQP supported by BifroMQ for messaging.

Below is a simple Java code sample showing how to send and receive messages using BifroMQ's client library:

// 导入必要的库  
import java.io.IOException;  
import org.bifrostd.stomp.Stomp;  
import org.bifrostd.stomp.StompFrame;  
import org.bifrostd.stomp.StompException;  
import org.bifrostd.stomp.impl.StompImpl;  
  
public class BifroMQExample {  
    public static void main(String[] args) {  
        // 创建 Stomp 客户端  
        Stomp stomp = new StompImpl();  
  
        // 连接到 BifroMQ 代理  
        try {  
            stomp.connect("tcp://localhost:61613");  
        } catch (IOException e) {  
            e.printStackTrace();  
            return;  
        }  
  
        // 发送消息  
        String destination = "/topic/test";  
        String message = "Hello, BifroMQ!";  
        try {  
            StompFrame frame = new StompFrame(Stomp.Command.SEND);  
            frame.addHeader("destination", destination);  
            frame.content = message.getBytes();  
            stomp.send(frame);  
        } catch (IOException e) {  
            e.printStackTrace();  
            return;  
        } catch (StompException e) {  
            e.printStackTrace();  
            return;  
        }  
  
        // 接收消息  
        try {  
            StompFrame frame = stomp.readFrame();  
            if (frame.command.equals(Stomp.Command.MESSAGE)) {  
                System.out.println("Received message: " + new String(frame.content));  
            }  
        } catch (IOException e) {  
            e.printStackTrace();  
            return;  
        } catch (StompException e) {  
            e.printStackTrace();  
            return;  
        }  
  
        // 断开连接  
        try {  
            stomp.disconnect();  
        } catch (IOException e) {  
            e.printStackTrace();  
            return;  
        } catch (StompException e) {  
            e.printStackTrace();  
            return;  
        }  
    }  
}

BifroMQ plug-in development:
If you want to develop a plug-in for BifroMQ, you can implement it according to the BifroMQ plug-in development specification. Here are some possible implementations:

  • Protocol conversion plugin: If you wish to convert other messaging protocols to those supported by BifroMQ, you can develop a protocol conversion plugin. This plugin can receive messages from other protocols and convert them to formats supported by BifroMQ for sending.
  • Message filtering plug-in: If you want to filter the messages delivered by BifroMQ, you can develop a message filtering plug-in. This plugin can modify, validate or otherwise process messages before or after they are sent to BifroMQ.
  • Logging plugin: If you want to enhance the logging function of BifroMQ, you can develop a logging plugin. This plugin can record BifroMQ operations and events, and provide more detailed log output.

The following is a simple Java code sample showing how to develop a simple protocol conversion plug-in for BifroMQ:

import org.bifu.bifrost.plugin.AbstractPlugin;  
import org.bifu.message.Message;  
import org.bifu.message.builder.MessageBuilder;  
import org.eclipse.jetty.websocket.api.Session;  
import org.eclipse.jetty.websocket.api.WebSocketAdapter;  
import org.json.JSONObject;  
  
public class ProtocolConversionPlugin extends AbstractPlugin {  
  
    @Override  
    public void onOpen(Session session) {  
        // 处理新连接的逻辑  
    }  
      
    @Override  
    public void onClose(Session session) {  
        // 处理关闭连接的逻辑  
    }  
      
    @Override  
    public void onTextMessage(Session session, String message) {  
        // 处理文本消息的逻辑  
        try {  
            JSONObject json = new JSONObject(message);  
            String convertedMessage = json.getString("converted");  
            Message converted = MessageBuilder.build(convertedMessage);  
            session.getRemote().sendString(converted.toJson().toString());  
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
    }  
}

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Origin blog.csdn.net/long_songs/article/details/132325113