[WW-3590] REST service actions and "normal" actions in the same web application (patch)

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.2.1.1
• Fix Version/s: 2.2.3
• Component/s: Plugin - REST
• Labels: namespaces patch rest

Environment

N/A

• Flags: Patch
• Assignee: Lukasz Lenart
• Reporter: Raigedas
• Created: 14/Mar/11 08:13
• Updated: 28/Oct/12 22:11
• Resolved: 16/Mar/11 20:49

Description

Problem.
i would like to expand my existing webapp by adding RESTful ws. i do not want to create a separate webapp which would serve solely as web service.
but as soon as i add REST plugin to th classpath of my struts2 based webapp, all actions (which worked correctly before) stop working and i get errors:
java.lang.NoSuchMethodException <...> MyActionName.index().

i thought that it could be solved by reconfiguring "ActionMapper"s. i configured that in this way:
<constant name="struts.mapper.class"
value="org.apache.struts2.dispatcher.mapper.PrefixBasedActionMapper"/>
<constant name="struts.mapper.prefixMapping" value="/ws/rest:rest,:struts"/>

but this does not solves the problem. "normal" actions throw "Cannot handle CGLIB enhanced proxies with multiple callbacks"..

Solution.

i suggest to implement conditional enabling (based on the namespace of the request) of the REST plugin. this can be done by changing RestActionProxyFactory class a little bit. my solution (see the patch) adds a "namespace" property (with setter only). that property has default value or can have injected a config value named "struts.rest.namespace". the default value is "/" which means that after update the functionality of the plugin will remain the same unless one adds a config like:
<constant name="struts.rest.namespace" value="/rest" />