Re: Spring and IoFilterMapping

Fri, 04 Aug 2006 06:07:02 -0700 

Here is the exception:
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'filterChainBuilder' defined in file [/opt/tracker2/./etc/jmxServerContext.xml]: Error setting property values; nested exception is PropertyAccessExceptionsException (1 errors) 
Caused by: PropertyAccessExceptionsException (1 errors)
org.springframework.beans.TypeMismatchException: Failed to convert property value of type [java.util.ArrayList] to required type [org.apache.mina.common.IoFilter[]] for property 'filters'; nested exception is java.lang.IllegalArgumentException: No matching editors or conversion strategy found Caused by: java.lang.IllegalArgumentException: No matching editors or conversion strategy found at org.springframework.beans.PropertyTypeConverter.convertIfNecessary(PropertyTypeConverter.java:209) at org.springframework.beans.PropertyTypeConverter.convertIfNecessary(PropertyTypeConverter.java:93) at org.springframework.beans.PropertyTypeConverter.convertToTypedArray(PropertyTypeConverter.java:264) at org.springframework.beans.PropertyTypeConverter.convertIfNecessary(PropertyTypeConverter.java:182) at org.springframework.beans.PropertyTypeConverter.convertIfNecessary(PropertyTypeConverter.java:108) at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:723) at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:575) at org.springframework.beans.AbstractPropertyAccessor.setPropertyValue(AbstractPropertyAccessor.java:49) at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:68) at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:57) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:809) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:589) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:389) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:256) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:167) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:253) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:332) at org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:89) at org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:74) 


And here is the complete filterchain:


<bean id="filterChainBuilder" 
class="org.apache.mina.integration.spring.DefaultIoFilterChainBuilderFactoryBean">

  <property name="filters">
    <list>
      <bean class="org.apache.mina.filter.thread.ThreadPoolFilter">
        <constructor-arg>

          <bean 
class="org.apache.mina.filter.thread.LeaderFollowersThreadPool">

            <property name="threadNamePrefix" value="IoWorker"/>
            <property name="maximumPoolSize" value="16"/>
            <property name="keepAliveTime" value="60000"/>
          </bean>
        </constructor-arg>
      </bean>
                        
      <bean class="org.apache.mina.integration.spring.IoFilterMapping">
        <property name="name" value="LOGGING_FILTER" />
        <property name="filter">
          <bean class="org.apache.mina.filter.LoggingFilter"/>
        </property>
      </bean>

    </list>
  </property>
</bean>

The same happens also, when I use only the part:


<bean id="filterChainBuilder" 
class="org.apache.mina.integration.spring.DefaultIoFilterChainBuilderFactoryBean">

  <property name="filters">
    <list>
                        
      <bean class="org.apache.mina.integration.spring.IoFilterMapping">
        <property name="name" value="LOGGING_FILTER" />
        <property name="filter">
          <bean class="org.apache.mina.filter.LoggingFilter"/>
        </property>
      </bean>

    </list>
  </property>
</bean>


If you need more of the config file, I can attach the whole one in the 
next mail.


Regards
Michael


Niklas Therning wrote:

Michael Bauroth wrote:


Hi,

can you tell me, what's wrong with this code?

<bean class="org.apache.mina.integration.spring.IoFilterMapping">
 <constructor-arg value="abc" />
 <constructor-arg>
   <bean class="org.apache.mina.filter.LoggingFilter"/>
 </constructor-arg>
</bean>

When I use instead:

<bean class="org.apache.mina.filter.LoggingFilter" />

all works fine. When I check the code of class IoFilterMapping, the
first approach should work?



What happens with the first? Do you get an exception? If that's the case
please post it here. I think the first should work as long as you don't
mix the two approaches. You must either use explicit IoFilterMappings
for all your filters set on a DefaultIoFilterChainBuilderFactoryBean or
use the simpler for all. You can't mix them.

You could try to use:

<bean class="org.apache.mina.integration.spring.IoFilterMapping">
  <property name="name" value="abc" />
  <property name="filter">
    <bean class="org.apache.mina.filter.LoggingFilter"/>
  </property>
</bean>

instead. I've had some problems with Spring and constructor-arg before
where Spring couldn't find a matching constructor or picked the wrong
one. Though I don't think that's the case here.

It might help if I get to see more of your Spring file.























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