I have a spring beans configuration file where I define the following jackson classes as spring beans.
For some reason on run-time the filterProvider bean is instantiated without the map argument.
You can see from the docs that the SimpleFilterProvider does have such a constructor and that SimpleBeanPropertyFilter implements BeanPropertyFilter .
<bean id="productAttributesAndAdvertiserNameFilter" class="org.codehaus.jackson.map.ser.impl.SimpleBeanPropertyFilter" factory-method="filterOutAllExcept">
<constructor-arg value="name"/>
</bean>
<bean id="offerIdFilter" class="org.codehaus.jackson.map.ser.impl.SimpleBeanPropertyFilter" factory-method="filterOutAllExcept">
<constructor-arg value="id"/>
</bean>
<bean id="filterProvider" class="org.codehaus.jackson.map.ser.impl.SimpleFilterProvider">
<constructor-arg>
<util:map value-type="org.codehaus.jackson.map.ser.BeanPropertyFilter">
<entry key="onlyNameFilter" value-ref="productAttributesAndAdvertiserNameFilter" />
<entry key="onlyIdFilter" value-ref="offerIdFilter" />
</util:map>
</constructor-arg>
</bean>
Any help would be appreciated.
Looks like you've found a bug in SimpleFilterProvider.
ReplyDeleteI just downloaded the latest sources (1.9.4) and the constructors are defined as such:
public SimpleFilterProvider() {
_filtersById = new HashMap<String,BeanPropertyFilter>();
}
/**
* @param mapping Mapping from id to filter; used as is, no copy is made.
*/
public SimpleFilterProvider(Map<String,BeanPropertyFilter> mapping) {
_filtersById = new HashMap<String,BeanPropertyFilter>();
}
The constructor which takes the mapping ignores it... (i.e. javadoc is incorrect)
I think <util:map> is misplaced here. I'd make it a separate bean, outside of the filter provider declaration, and refer to it. OR I'd change that to a <map> without the util namespace.
ReplyDeleteI don't see why it is not working.
ReplyDeleteAt worst, you can create your own class by extending the SimpleFilterProvider and declare this bean in your Spring context...