绑定aws sqs区域骆驼

Question

所以我尝试使用ApacheCamel访问简单队列服务。

JavaDSL方法很好，但我尝试使用xml配置。

private AmazonSQS sqs;
sqs = new AmazonSQSClient(credentials);
Region sqsRegion = Region.getRegion(Regions.US_WEST_2);
sqs.setRegion(sqsRegion);

上面的代码工作正常，但我决定构建bean。

<context:property-placeholder  location="classpath:/default.properties" />
    <bean name="sqsClient" class="com.amazonaws.services.sqs.AmazonSQSClient">
        <constructor-arg>
            <bean class="com.amazonaws.auth.BasicAWSCredentials">
                <constructor-arg value="${access.key}"/>
                <constructor-arg value="${secret.key}"/>
            </bean>
        </constructor-arg>
        <property name="region" value="com.amazonaws.regions.Region"/>
    </bean>

我犯了个错误

无法将[java.lang.String]类型的属性值转换为属性“Region”所需的[com.amazonaws.regions.Region]类型；嵌套的例外是java。lang.IllegalStateException:无法将[java.lang.String]类型的值转换为属性“Region”所需的[com.amazonaws.regions.Region]类型：找不到匹配的编辑器或转换策略

我没有找到任何关于通过Spring xml配置sqs的信息。有时我认为apache camel已经过时，或者没有人将其与sqs一起使用。此外，下一步是连接在JavaDSL实现中运行良好的扩展SQS库，但我不知道如何通过xml配置队列。

UPD：

感谢@jbird，我用这种方式解决了这个问题：

<context:property-placeholder  location="classpath:/default.properties" />
    <bean id="awsRegion" class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
        <property name="targetClass" value="com.amazonaws.regions.RegionUtils"/>
        <property name="targetMethod" value="getRegion"/>
        <property name="arguments">
            <list>
                <value>${aws.region}</value>
            </list>
        </property>
    </bean>

    <bean name="sqsClient" class="com.amazonaws.services.sqs.AmazonSQSClient">
        <constructor-arg>
            <bean class="com.amazonaws.auth.BasicAWSCredentials">
                <constructor-arg value="${access.key}"/>
                <constructor-arg value="${secret.key}"/>
            </bean>
        </constructor-arg>
        <property name="region" ref="awsRegion"/>
    </bean>

所以，我刚刚解析了我的default.properties文件，其中包含aws.key、aws.secret和区域设置。

我还有一个问题。Apache camel在加载路由器等之后停止运行。

[                          main] SpringCamelContext             INFO  Route: route1 started and consuming from: Endpoint[aws-sqs://queue?amazonSQSClient=%23sqsClient]
[                          main] SpringCamelContext             INFO  Total 1 routes, of which 1 are started.
[                          main] SpringCamelContext             INFO  Apache Camel 2.17.2 (CamelContext: camel-1) started in 6.105 seconds

Process finished with exit code 0

路由器：

import org.apache.camel.builder.RouteBuilder;
import org.springframework.stereotype.Component;

@Component
public class MyRouteBuilder extends RouteBuilder {

    public void configure() {
        from("aws-sqs://queue?amazonSQSClient=#sqsClient")
                .log("We have a message! ${body}")
                .to("file:target/output?fileName=login-message-${date:now:MMDDyy-HHmmss}.json");
    }
}

还有骆驼的背景。xml

    <?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       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
           http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd
       ">

    <context:property-placeholder  location="classpath:/default.properties" />

    <bean id="awsRegion" class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
        <property name="targetClass" value="com.amazonaws.regions.RegionUtils"/>
        <property name="targetMethod" value="getRegion"/>
        <property name="arguments">
            <list>
                <value>${aws.region}</value>
            </list>
        </property>
    </bean>

    <bean name="sqsClient" class="com.amazonaws.services.sqs.AmazonSQSClient">
        <constructor-arg>
            <bean class="com.amazonaws.auth.BasicAWSCredentials">
                <constructor-arg value="${access.key}"/>
                <constructor-arg value="${secret.key}"/>
            </bean>
        </constructor-arg>
        <property name="region" ref="awsRegion"/>
    </bean>

    <!-- enable Spring @Component scan -->
    <context:component-scan base-package="com.test.router"/>

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

        <contextScan/>
    </camelContext>

</beans>

Answer 1

假设这个问题。

第一：

要将属性添加到您的对象，我只需创建新bean

 <bean id="awsRegion" class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
        <property name="targetClass" value="com.amazonaws.regions.RegionUtils"/>
        <property name="targetMethod" value="getRegion"/>
        <property name="arguments">
            <list>
                <value>${aws.region}</value>
            </list>
        </property>
    </bean>

并创建引用

<property name="region" ref="awsRegion"/>

第二：

运行Apache Camel

Main main = new Main();
        main.setApplicationContextUri("/META-INF/spring/camel-contex.xml");
        main.run(args);

就这些！

Answer 2

您的区域属性的值是String值"com.amazonaws.regions.区域"。它期望的是类型com.amazonaws.regions.区域的对象。因此，您需要引用区域类型的对象，而不是提供String值。