java – 使用ActiveMQ,Camel和Spring实现Request-Reply模式

然后逐行读取CSV文件：

>根据该行包含的值构建请求
>将请求发送到消息队列
>其他组件需要获取消息,处理请求并将响应发送到另一个消息队列(生产者已知,因此生产者可以获取响应).

我相信request-reply pattern符合要求.
我安装了ActiveMQ,下载了camel并尝试使用他们的jms项目.

配置组件,队列和测试连接(工作)后,我试图弄清楚实际上如何实现请求 – 回复？我没找到任何好的examples

我有一个RouteBuilder

RouteBuilder

public class MyRouteBuilder extends RouteBuilder {
    public static void main(String[] args) throws Exception {
        new Main().run(args);
    }

    public void configure() {
        from("file:src/data?noop=true")
        .to("activemq:RequestQ");

        from("activemq:RequestQ?exchangePattern=InOut&timeToLive=5000") 
        .inOut("activemq:RequestQ","bean:myBean?method=someMethod"); 
    }
}

骆驼的context.xml

<beans xmlns="http://www.springframework.org/schema/beans"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="
         http://www.springframework.org/schema/beans 
         http://www.springframework.org/schema/beans/spring-beans.xsd
         http://camel.apache.org/schema/spring
         http://camel.apache.org/schema/spring/camel-spring.xsd">

    <camelContext id="camel" xmlns="http://camel.apache.org/schema/spring">
        <package>org.apache.camel.example.spring</package>
    </camelContext>

    <bean id="jmsConnectionFactory" 
        class="org.apache.activemq.ActiveMQConnectionFactory">
        <property name="brokerURL" value="tcp://localhost:61616" />
    </bean>

    <bean id="pooledConnectionFactory" 
        class="org.apache.activemq.pool.PooledConnectionFactory" 
        init-method="start" destroy-method="stop">
        <property name="maxConnections" value="8" />
        <property name="connectionFactory" ref="jmsConnectionFactory" />
    </bean>

    <bean id="jmsConfig" 
        class="org.apache.camel.component.jms.JmsConfiguration">
        <property name="connectionFactory" ref="pooledConnectionFactory"/>
        <property name="concurrentConsumers" value="10"/>
    </bean>

    <bean id="activemq" 
        class="org.apache.activemq.camel.component.ActiveMQComponent">
        <property name="configuration" ref="jmsConfig"/>
    </bean>

    <bean id="myBean" class="org.apache.camel.example.spring.MyBean"/>
</beans>

问题：

>如何读取文件逐行构造并根据行内容发布消息？
>如何配置路由以及如何配置邮件头以便在获取响应后将被删除的临时队列中获取响应？
>您可以推荐哪些快速入门指南？

编辑

我得到了下面的代码工作.
现在让我们说在处理器中我创建响应.
我该如何寄回？我该如何消费回复？

public class MyRouteBuilder extends RouteBuilder {

    public static void main(String[] args) throws Exception {
        new Main().run(args);
    }

    public void configure() {
        from("file:/Users/aviad/ws/integ/src/data?fileName=lines.txt&noop=true&idempotent=true")
        .split()
        .tokenize("n")
        .inOut("activemq:req");

        from("activemq:req")
        .process(new Processor() {
            public void process(Exchange exchange) throws Exception {
                System.out.println(exchange.getIn().getBody(String.class));
                System.out.println("jmscorrelationid=" + exchange.getIn().getHeader("jmscorrelationid"));
                System.out.println("jmsdestination=" + exchange.getIn().getHeader("jmsdestination"));
            }
        });
    }
}