Restlet 1.1m1 + Spring = circular dependency ?

Mon, 24 Dec 2007 09:39:23 -0800 

        Hello !

I'm developing test applicaiton with latest 1.1 snapshot and Spring 2.5.
My objective is to make restlet application be started by spring container.
So everythig is started when spring container starts by using init-method.
After reading some docs about new spring extension i've created following config. 

<?xml version="1.0" encoding="UTF-8"?>
<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-2.0.xsd";>


        <bean id="myRestlet" class="MyRestlet"/>
        <bean id="server" class="org.restlet.ext.spring.SpringServer">
                <constructor-arg value="http"/>
                <constructor-arg value="8182"/>
        </bean>
        <bean class="org.restlet.ext.spring.SpringRouter">
                <constructor-arg ref="application"/>
                <property name="attachments">
                        <map>
                                <entry key="/user/{userId}" 
value-ref="myRestlet"/>
                        </map>
                </property>
        </bean>
        <bean id="application" class="org.restlet.ext.spring.SpringApplication">
                <constructor-arg ref="component"/>
        </bean>

	<bean id="component" class="org.restlet.ext.spring.SpringComponent"  
init-method="start">

                <property name="server" ref="server"/>
                <property name="defaultTarget" ref="application"/>
        </bean>
</beans>


Code for creating/running  Spring container.

public static void main(String[] args) throws Exception {

	ClassPathXmlApplicationContext ctx = new  
ClassPathXmlApplicationContext("META-INF/spring.xml");

        ctx.registerShutdownHook();
        ctx.refresh();
}

And after runnig this i got Spring error. Sorry for long stacktrace :))))))
And yes im realizing that there's circular dependency.

Am i wrong with my config. Could anyone help me ro reslove this issues.  
Thnx in advance.



2007-12-24 19:33:55.808::INFO:  Logging to STDERR via  
org.mortbay.log.StdErrLog
Exception in thread "main"  
org.springframework.beans.factory.BeanCreationException: Error creating  
bean with name 'org.restlet.ext.spring.SpringRouter#0' defined in class  
path resource [META-INF/spring.xml]: Cannot resolve reference to bean  
'application' while setting constructor argument; nested exception is  
org.springframework.beans.factory.BeanCreationException: Error creating  
bean with name 'application' defined in class path resource  
[META-INF/spring.xml]: Cannot resolve reference to bean 'component' while  
setting constructor argument; nested exception is  
org.springframework.beans.factory.BeanCreationException: Error creating  
bean with name 'component' defined in class path resource  
[META-INF/spring.xml]: Cannot resolve reference to bean 'application'  
while setting bean property 'defaultTarget'; nested exception is  
org.springframework.beans.factory.BeanCurrentlyInCreationException: Error  
creating bean with name 'application': Requested bean is currently in  
creation: Is there an unresolvable circular reference?
	at  
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:274)
	at  
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:104)
	at  
org.springframework.beans.factory.support.ConstructorResolver.resolveConstructorArguments(ConstructorResolver.java:447)
	at  
org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:148)
	at  
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:957)
	at  
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:869)
	at  
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:514)
	at  
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:485)

        at java.security.AccessController.doPrivileged(Native Method)

	at  
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:455)
	at  
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:251)
	at  
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:169)
	at  
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:248)
	at  
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:170)
	at  
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:413)
	at  
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:735)
	at  
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:369)
	at  
org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:122)
	at  
org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:66)

        at test.main(test.java:22)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

	at  
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at  
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

        at java.lang.reflect.Method.invoke(Method.java:585)
        at com.intellij.rt.execution.application.AppMain.main(AppMain.java:90)

Caused by: org.springframework.beans.factory.BeanCreationException: Error  
creating bean with name 'application' defined in class path resource  
[META-INF/spring.xml]: Cannot resolve reference to bean 'component' while  
setting constructor argument; nested exception is  
org.springframework.beans.factory.BeanCreationException: Error creating  
bean with name 'component' defined in class path resource  
[META-INF/spring.xml]: Cannot resolve reference to bean 'application'  
while setting bean property 'defaultTarget'; nested exception is  
org.springframework.beans.factory.BeanCurrentlyInCreationException: Error  
creating bean with name 'application': Requested bean is currently in  
creation: Is there an unresolvable circular reference?
	at  
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:274)
	at  
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:104)
	at  
org.springframework.beans.factory.support.ConstructorResolver.resolveConstructorArguments(ConstructorResolver.java:447)
	at  
org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:148)
	at  
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:957)
	at  
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:869)
	at  
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:514)
	at  
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:485)

        at java.security.AccessController.doPrivileged(Native Method)

	at  
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:455)
	at  
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:251)
	at  
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:169)
	at  
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:248)
	at  
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:170)
	at  
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:268)

        ... 24 more

Caused by: org.springframework.beans.factory.BeanCreationException: Error  
creating bean with name 'component' defined in class path resource  
[META-INF/spring.xml]: Cannot resolve reference to bean 'application'  
while setting bean property 'defaultTarget'; nested exception is  
org.springframework.beans.factory.BeanCurrentlyInCreationException: Error  
creating bean with name 'application': Requested bean is currently in  
creation: Is there an unresolvable circular reference?
	at  
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:274)
	at  
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:104)
	at  
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1274)
	at  
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1042)
	at  
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
	at  
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:485)

        at java.security.AccessController.doPrivileged(Native Method)

	at  
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:455)
	at  
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:251)
	at  
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:169)
	at  
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:248)
	at  
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:170)
	at  
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:268)

        ... 38 more

Caused by:  
org.springframework.beans.factory.BeanCurrentlyInCreationException: Error  
creating bean with name 'application': Requested bean is currently in  
creation: Is there an unresolvable circular reference?
	at  
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.beforeSingletonCreation(DefaultSingletonBeanRegistry.java:237)
	at  
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:163)
	at  
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:248)
	at  
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:170)
	at  
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:268)

        ... 50 more


--
Best Regards
Evgeny K. Shepelyuk






















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