Camel routes not getting resolved in xml file

Question

I am upgrading from Java 8 to Java 11. Even Spring version used earlier was 4.x now I have upgraded to Spring 5.x

I am using camel for routes

My camel context file is as follows

 <bean id="samplePriceBean"
    class="com.abc.SamplePriceBean">
    <constructor-arg index="0"
        ref="route1" />
        <constructor-arg index="1"
        ref="route2" />
    <constructor-arg index="2"
        ref="myCamelContext" />
    <constructor-arg index="3" value="route1" />
    <constructor-arg index="4" value="route1" />
</bean>
<camelContext id="myCamelContext" xmlns="http://camel.apache.org/schema/spring">
    <route id="listRoute" autoStartup="false">
        <from
            uri="file:{{abc.list}}?noop=true&amp;" />
        <to uri="direct:route1"
            id="route1" />
    </route>
    <route id="readRoute" autoStartup="false">
        <from
            uri="file:{{abc.read}}?noop=true&amp;" />
        <to uri="direct:route2"
            id="route2" />
    </route>
</camelContext>

Now when I run the application error in console as follows

Error creating bean with name 'samplePriceBean' defined in class path resource [app-camel.xml]: Cannot resolve reference to bean 'route1' while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'route1' available
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:787)
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:226)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1358)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1204)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)

The application is unable to resolve the routes defined in camel context

I am using JDk 11 , SPring 5.x, Apache camel 3.0.0

Was this example workable before upgrading ? Where u define spring beans with id "route1" or "route2" ? — c0ld, Dec 13 '19 at 11:40

score 1 · Answer 1 · answered Dec 16 '19 at 16:30

Okay so this is really wrong from the beginning too

The <route> is for defining routes, and routes are not exposed as spring bean which spring dependency injection can use/lookup. Only <camelContext> is intended for that, as its CamelContext.

In your SamplePriceBean you can change its constructor to not take in route1 and route2 as refs, but you can just use the API from CamelContext to lookup these routes via CamelContext API (not spring bean ids).

score 0 · Answer 2 · answered Dec 16 '19 at 07:48

0

Camel 2.x does NOT support Java 11. You should use Camel 3 for Java 11 support.

answered Dec 16 '19 at 07:48

Claus Ibsen

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I have even tried with version3.0.0 , but same issue – Sam Dec 16 '19 at 11:41

Camel routes not getting resolved in xml file

2 Answers2