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https://issues.apache.org/struts/browse/WW-2016?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ted Husted updated WW-2016:
---------------------------
Fix Version/s: Future
Setting Fix Version to "future" for issues without a set fix version.
> Zero-configuration ignores interceptor configuration
> ----------------------------------------------------
>
> Key: WW-2016
> URL: https://issues.apache.org/struts/browse/WW-2016
> Project: Struts 2
> Issue Type: Bug
> Components: Configuration
> Affects Versions: 2.0.8
> Environment: Windows XP, Tomcat 5.5.23
> Reporter: Sean McRae
> Fix For: Future
>
>
> So I am using the GWT plug-in (http://code.google.com/p/struts2gwtplugin/) to
> integrate some new GWT work into our existing Struts app. In switching to
> Struts 2 we now would like to use the zero-config option and call all of our
> actions using this plug-in - basically an interceptor. Unfortunately we
> cannot call our actions, all named *Action, using this method as the
> zero-config method and Struts' discovery of actions and the assignment of
> interceptors seems to ignore the default interceptor setup (I tried
> redefining this in struts-default.xml - see below) or by specifying a default
> interceptor.
> It seems to me that Struts should do one of the following:
> 1) Use the defaultStack as defined (or overridden) in struts.properties and
> struts-default.xml
> 2) Define a stack that could be overridden in struts.xml
> 3) Provide some other mechanism to allow the developer to override the
> default zero-config interceptor stack
> Issue WW-1796 addresses this in some respect, but what I would like is to
> define the default interceptor stack and then used the WW-1796 feature to
> override that if I need to.
> Below are thing I tried to work around this issue.
> 1. Not deriving my package from gwt-default and struts-default so as not to
> get the defaultStack interceptor stack defined in struts-default.xml. I
> didn't really think this would work since the action classes aren't part of
> the any defined package but I thought I would try. So my package definition
> looked like this:
> <package name="myPackage">
> <interceptors>
> <interceptor name="gwt"
> class="com.pharmanet.server.struts2.GWTInterceptor" />
>
> <interceptor-stack name="gwtStack">
> <interceptor-ref name="gwt"/>
> </interceptor-stack>
> </interceptors>
> <default-interceptor-ref name="gwtStack"/>
>
> </package>
> 2. Added a struts.properties file to /WEB-INF/classes that sets the struts
> configuration files property:
> struts.configuration.files=pnet-struts-default.xml,struts-plugin.xml,struts.xml
> and then in pnet-struts-default.xml
> I defined defaultStack to only have the GWT interceptor in it. This does
> not seem to help either.
> Using the configuration browser plug-in (that is a nice plug-in for this
> work), the interceptor stack that gets generated by Struts is this:
> Name Type
> ExceptionMappingInterceptor
> com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor
> AliasInterceptor
> com.opensymphony.xwork2.interceptor.AliasInterceptor
> ServletConfigInterceptor
> org.apache.struts2.interceptor.ServletConfigInterceptor
> PrepareInterceptor
> com.opensymphony.xwork2.interceptor.PrepareInterceptor
> I18nInterceptor
> com.opensymphony.xwork2.interceptor.I18nInterceptor
> ChainingInterceptor
> com.opensymphony.xwork2.interceptor.ChainingInterceptor
> DebuggingInterceptor
> org.apache.struts2.interceptor.debugging.DebuggingInterceptor
> ProfilingActivationInterceptor
> org.apache.struts2.interceptor.ProfilingActivationInterceptor
> ScopedModelDrivenInterceptor
> com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor
> ModelDrivenInterceptor
> com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor
> FileUploadInterceptor
> org.apache.struts2.interceptor.FileUploadInterceptor
> CheckboxInterceptor
> org.apache.struts2.interceptor.CheckboxInterceptor
> StaticParametersInterceptor
> com.opensymphony.xwork2.interceptor.StaticParametersInterceptor
> ParametersInterceptor
> com.opensymphony.xwork2.interceptor.ParametersInterceptor
> StrutsConversionErrorInterceptor
> org.apache.struts2.interceptor.StrutsConversionErrorInterceptor
> AnnotationValidationInterceptor
> org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor
> DefaultWorkflowInterceptor
> com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor
> My theory is that the zero-config code is either ignoring defaultStack
> settings and making its own stack up, or Struts is not picking up on my
> override of struts-default.xml (maybe I need to remove it from the JAR?). I
> end up getting a ClassCastException at line 150 of
> com.opensymphony.xwork2.validator.ValidationInterceptor, I am assuming this
> is the point at which Struts is trying to cast my object to a Struts result
> (String).
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