How to support batch mode?

I use spring-cloud-starter-stream-jms with ActiveMQ in Sprig Cloud Stream batch mode, but it doesn't work fine.

Here is pom.xml:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <!--spring-boot必须是2.x-->
        <version>2.7.8</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.waylau.spring.cloud.stream.binder.jms</groupId>
    <artifactId>spring-cloud-stream-batch-demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>spring-cloud-stream-batch-demo</name>
    <description>Batch demo for Spring Cloud Stream</description>
    <properties>
        <java.version>11</java.version>
        <!--spring-cloud必须是2021.x-->
        <spring-cloud.version>2021.0.5</spring-cloud.version>
        <spring-cloud-stream-binder-jms.version>1.0.0.RELEASE</spring-cloud-stream-binder-jms.version>
        <spring-cloud-starter-stream-rocketmq.version>2022.0.0.0-RC1</spring-cloud-starter-stream-rocketmq.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-activemq</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-stream</artifactId>
        </dependency>

        <!--start: 添加binder-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-stream-binder-kafka</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-stream-binder-rabbit</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-stream-rocketmq</artifactId>
            <version>${spring-cloud-starter-stream-rocketmq.version}</version>
            <exclusions>
                <exclusion>
                    <artifactId>fastjson</artifactId>
                    <groupId>com.alibaba</groupId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>com.boutouil</groupId>
            <artifactId>spring-cloud-stream-binder-jms</artifactId>
            <version>${spring-cloud-stream-binder-jms.version}</version>
        </dependency>
        <!--end: 添加binder-->

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-stream</artifactId>
            <scope>test</scope>
            <classifier>test-binder</classifier>
            <type>test-jar</type>
        </dependency>
    </dependencies>
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

Here is application.properties:

# 默认binder，可选kafka、rabbit、rocketmq、jms。如果是ActiveMQ则配置jms
# rocketmq、jms暂不支持批量消费
spring.cloud.stream.defaultBinder=jms

# 存在多个Supplier/Function/Consumer Bean时，配置
spring.cloud.function.definition=log;logBatch

spring.cloud.stream.bindings.log-in-0.destination=queue://logSingleDestination
spring.cloud.stream.bindings.logBatch-in-0.destination=queue://logBatchDestination
spring.cloud.stream.bindings.logBatch-in-0.consumer.batch-mode=true

Here is DemoApplication.java:

package com.waylau.spring.cloud.stream.batch.demo;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.ApplicationRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.stream.function.StreamBridge;
import org.springframework.context.annotation.Bean;

import java.util.List;
import java.util.function.Consumer;

/**
 * 批量消费与生产
 *
 * @author <a href="https://waylau.com">Way Lau</a>
 * @since 2023-02-22
 */
@SpringBootApplication
public class DemoApplication {
    private final static List<Person> PERSON_LIST = List.of(
            new Person("Sam Spade"),
            new Person("Sam Po"),
            new Person("Sam Li"),
            new Person("Sam Bo"),
            new Person("Way Lau"),
            new Person("Fei Po"),
            new Person("Gu Li")
    );

    @Autowired
    private StreamBridge bridge;

    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }

    @Bean
    public ApplicationRunner runner() {
        return arg -> {
            // 将消息批量转发到其他destination
            bridge.send("logBatchTransmitDestination", PERSON_LIST);

            // 将消息逐个转发到其他destination
            PERSON_LIST.stream().forEach(person -> {
                bridge.send("logBatchDestination", person);
            });
        };

    }

    /**
     * 单条消息处理器
     *
     * @return
     */
    @Bean
    public Consumer<Person> log() {
        return person -> {
            // 打印出接收到的消息
            System.out.println("Received: " + person);
        };
    }

    /**
     * 批量消息处理器
     *
     * @return
     */
    @Bean
    public Consumer<List<Person>> logBatch() {
        return personList -> {
            // 打印出接收到的消息
            System.out.println("Received personList: " + personList);

            // 将消息逐个转发到其他destination
            personList.stream().forEach(person -> {
                bridge.send("logSingleDestination", person);
            });

        };
    }

    public static class Person {
        private String name;

        public Person() {

        }

        public Person(String name) {
            this.name = name;
        }

        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }

        public String toString() {
            return this.name;
        }
    }
}

Complete Application code can found here: https://github.com/waylau/spring-cloud-stream-tutorial/tree/main/samples/spring-cloud-stream-batch-demo

It seems logBatch() dosen't work fine. Message data doesn't convert to Person class:

Received personList: [123, 34, 110, 97, 109, 101, 34, 58, 34, 83, 97, 109, 32, 83, 112, 97, 100, 101, 34, 125]
Received personList: [123, 34, 110, 97, 109, 101, 34, 58, 34, 83, 97, 109, 32, 83, 112, 97, 100, 101, 34, 125]
Received personList: [123, 34, 110, 97, 109, 101, 34, 58, 34, 83, 97, 109, 32, 83, 112, 97, 100, 101, 34, 125]

I have read the reference doc of spring-cloud-stream-binder-jms, and there is nothing about batch-mode.

Any idea?

realboutouil / spring-cloud-stream-binder-jms

How to support batch mode? #3