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Date: Thu, 5 Mar 2009 10:35:24 +0100
Message-ID: <5380c69c0903050135o51ead932ofbec1cf8bc793b07@mail.gmail.com>
Subject: Re: MinaConfiguration codec property
From: Claus Ibsen <claus.ibsen@gmail.com>
To: users@camel.apache.org
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On Thu, Mar 5, 2009 at 10:31 AM, Willem Jiang <willem.jiang@gmail.com> wrot=
e:
> Hi
>
> Since the myMinaEndpoint is created by the myMinaFactory which has not
> the reference from the application context which can be referred by the
> camelContext .
> So the myMinaEndpoint can't get find the instance of "myCodec".
>
> My suggestion is adding a constructor-arg of the camel context under the
> <bean id=3D"myMinaFactory" ...
> to let the myMinaFactory hold the reference of camelContext.
Yes I am adding it right now

    <bean id=3D"myMinaEndpoint"
          factory-bean=3D"myMinaFactory"
          factory-method=3D"createEndpoint">
        <constructor-arg index=3D"0" ref=3D"myCamel"/>
        <constructor-arg index=3D"1" ref=3D"myMinaConfig"/>
    </bean>


>
> Willem
>
>
> Nicolas Bouillon wrote:
>> Hi,
>>
>> i've got an error when trying to create my mina endpoint with spring dsl=
 :
>>
>> =A0 =A0 =A0 <bean id=3D"myCodec" class=3D"com.example.MyProtocolCodecFac=
tory">
>> =A0 =A0 =A0 </bean>
>>
>> =A0 =A0 =A0 <bean id=3D"myMinaFactory"
>> class=3D"org.apache.camel.component.mina.MinaComponent"/>
>>
>> =A0 =A0 =A0 <bean id=3D"myMinaEndpoint"
>> =A0 =A0 =A0 =A0 =A0 =A0 factory-bean=3D"myMinaFactory"
>> =A0 =A0 =A0 =A0 =A0 =A0 factory-method=3D"createEndpoint">
>> =A0 =A0 =A0 =A0 =A0 <constructor-arg index=3D"0" ref=3D"myMinaConfig"/>
>> =A0 =A0 =A0 </bean>
>>
>> =A0 =A0 =A0 <bean id=3D"myMinaConfig"
>> class=3D"org.apache.camel.component.mina.MinaConfiguration">
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 <property name=3D"protocol" value=3D"tcp" />
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 <property name=3D"host" value=3D"localhost" =
/>
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 <property name=3D"port" value=3D"7777" />
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 <property name=3D"sync" value=3D"true" />
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 <property name=3D"codec" value=3D"myCodec" /=
>
>> =A0 =A0 =A0 </bean>
>>
>> I got the following error :
>> org.springframework.beans.factory.BeanCreationException: Error
>> creating bean with name 'myMinaEndpoint' defined in class path
>> resource [spring.xml]: Instantiation of bean failed; nested exception
>> is org.springframework.beans.factory.BeanDefinitionStoreException:
>> Factory method [public org.apache.camel.Endpoint
>> org.apache.camel.component.mina.MinaComponent.createEndpoint(org.apache.=
camel.component.mina.MinaConfiguration)
>> throws java.lang.Exception] threw exception; nested exception is
>> java.lang.NullPointerException
>> =A0 =A0 =A0 at org.springframework.beans.factory.support.ConstructorReso=
lver.instantiateUsingFactoryMethod(ConstructorResolver.java:444)
>> =A0 =A0 =A0 at org.springframework.beans.factory.support.AbstractAutowir=
eCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBe=
anFactory.java:903)
>> =A0 =A0 =A0 at org.springframework.beans.factory.support.AbstractAutowir=
eCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.j=
ava:817)
>> =A0 =A0 =A0 at org.springframework.beans.factory.support.AbstractAutowir=
eCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:44=
0)
>> =A0 =A0 =A0 at org.springframework.beans.factory.support.AbstractAutowir=
eCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
>> =A0 =A0 =A0 at java.security.AccessController.doPrivileged(Native Method=
)
>> =A0 =A0 =A0 at org.springframework.beans.factory.support.AbstractAutowir=
eCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
>> =A0 =A0 =A0 at org.springframework.beans.factory.support.AbstractBeanFac=
tory$1.getObject(AbstractBeanFactory.java:264)
>> =A0 =A0 =A0 at org.springframework.beans.factory.support.DefaultSingleto=
nBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
>> =A0 =A0 =A0 at org.springframework.beans.factory.support.AbstractBeanFac=
tory.doGetBean(AbstractBeanFactory.java:261)
>> =A0 =A0 =A0 at org.springframework.beans.factory.support.AbstractBeanFac=
tory.getBean(AbstractBeanFactory.java:185)
>> =A0 =A0 =A0 at org.springframework.beans.factory.support.AbstractBeanFac=
tory.getBean(AbstractBeanFactory.java:164)
>> =A0 =A0 =A0 at org.springframework.beans.factory.support.DefaultListable=
BeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
>> =A0 =A0 =A0 at org.springframework.context.support.AbstractApplicationCo=
ntext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
>> =A0 =A0 =A0 at org.springframework.context.support.AbstractApplicationCo=
ntext.refresh(AbstractApplicationContext.java:380)
>> =A0 =A0 =A0 at org.springframework.context.support.ClassPathXmlApplicati=
onContext.<init>(ClassPathXmlApplicationContext.java:139)
>> =A0 =A0 =A0 at org.springframework.context.support.ClassPathXmlApplicati=
onContext.<init>(ClassPathXmlApplicationContext.java:83)
>> =A0 =A0 =A0 at com.example.main(App.java:15)
>> Caused by: org.springframework.beans.factory.BeanDefinitionStoreExceptio=
n:
>> Factory method [public org.apache.camel.Endpoint
>> org.apache.camel.component.mina.MinaComponent.createEndpoint(org.apache.=
camel.component.mina.MinaConfiguration)
>> throws java.lang.Exception] threw exception; nested exception is
>> java.lang.NullPointerException
>> =A0 =A0 =A0 at org.springframework.beans.factory.support.SimpleInstantia=
tionStrategy.instantiate(SimpleInstantiationStrategy.java:127)
>> =A0 =A0 =A0 at org.springframework.beans.factory.support.ConstructorReso=
lver.instantiateUsingFactoryMethod(ConstructorResolver.java:435)
>> =A0 =A0 =A0 ... 17 more
>> Caused by: java.lang.NullPointerException
>> =A0 =A0 =A0 at org.apache.camel.util.CamelContextHelper.lookup(CamelCont=
extHelper.java:152)
>> =A0 =A0 =A0 at org.apache.camel.util.CamelContextHelper.mandatoryLookup(=
CamelContextHelper.java:170)
>> =A0 =A0 =A0 at org.apache.camel.impl.DefaultComponent.mandatoryLookup(De=
faultComponent.java:315)
>> =A0 =A0 =A0 at org.apache.camel.component.mina.MinaComponent.getCodecFac=
tory(MinaComponent.java:360)
>> =A0 =A0 =A0 at org.apache.camel.component.mina.MinaComponent.configureCo=
decFactory(MinaComponent.java:213)
>> =A0 =A0 =A0 at org.apache.camel.component.mina.MinaComponent.createSocke=
tEndpoint(MinaComponent.java:175)
>> =A0 =A0 =A0 at org.apache.camel.component.mina.MinaComponent.createEndpo=
int(MinaComponent.java:109)
>> =A0 =A0 =A0 at org.apache.camel.component.mina.MinaComponent.createEndpo=
int(MinaComponent.java:101)
>> =A0 =A0 =A0 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Metho=
d)
>> =A0 =A0 =A0 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodA=
ccessorImpl.java:39)
>> =A0 =A0 =A0 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Delegatin=
gMethodAccessorImpl.java:25)
>> =A0 =A0 =A0 at java.lang.reflect.Method.invoke(Method.java:597)
>> =A0 =A0 =A0 at org.springframework.beans.factory.support.SimpleInstantia=
tionStrategy.instantiate(SimpleInstantiationStrategy.java:115)
>> =A0 =A0 =A0 ... 18 more
>>
>> if i remove the property "codec", it works. I believe it's because the
>> "myCodec" bean is not already created. It is reference as a spring
>> value, not as a bean reference. But i tried to add depends-on but it
>> doesn't work.
>> <bean depends-on=3D"myCodec" id=3D"myMinaConfig" =A0...
>>
>> Regards.
>> NicolaS.
>>
>
>



--=20
Claus Ibsen
Apache Camel Committer

Open Source Integration: http://fusesource.com
Blog: http://davsclaus.blogspot.com/