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Posted to issues@struts.apache.org by "Raigedas (JIRA)" <ji...@apache.org> on 2011/03/14 09:15:29 UTC

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

REST service actions and "normal" actions in the same web application (patch)
-----------------------------------------------------------------------------

                 Key: WW-3590
                 URL: https://issues.apache.org/jira/browse/WW-3590
             Project: Struts 2
          Issue Type: Improvement
          Components: Plugin - REST
    Affects Versions: 2.2.1.1
         Environment: N/A
            Reporter: Raigedas
            Priority: Minor
             Fix For: 2.2.2
         Attachments: rest namespace patch.txt

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 proble. "normal" actions throw "Cannot handle CGLIB enhanced proxies with multiple callbacks".. 

Solution.

i suggest to implement conditional enabling 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" />

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

Posted by "Lukasz Lenart (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/WW-3590?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lukasz Lenart resolved WW-3590.
-------------------------------

    Resolution: Fixed

> REST service actions and "normal" actions in the same web application (patch)
> -----------------------------------------------------------------------------
>
>                 Key: WW-3590
>                 URL: https://issues.apache.org/jira/browse/WW-3590
>             Project: Struts 2
>          Issue Type: Improvement
>          Components: Plugin - REST
>    Affects Versions: 2.2.1.1
>         Environment: N/A
>            Reporter: Raigedas
>            Assignee: Lukasz Lenart
>            Priority: Minor
>              Labels: namespaces, patch, rest
>             Fix For: 2.2.2
>
>         Attachments: rest namespace patch.txt
>
>   Original Estimate: 10m
>  Remaining Estimate: 10m
>
> 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" />

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

Posted by "Raigedas (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/WW-3590?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Raigedas updated WW-3590:
-------------------------

    Attachment: rest namespace patch.txt

> REST service actions and "normal" actions in the same web application (patch)
> -----------------------------------------------------------------------------
>
>                 Key: WW-3590
>                 URL: https://issues.apache.org/jira/browse/WW-3590
>             Project: Struts 2
>          Issue Type: Improvement
>          Components: Plugin - REST
>    Affects Versions: 2.2.1.1
>         Environment: N/A
>            Reporter: Raigedas
>            Priority: Minor
>             Fix For: 2.2.2
>
>         Attachments: rest namespace patch.txt
>
>   Original Estimate: 10m
>  Remaining Estimate: 10m
>
> 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 proble. "normal" actions throw "Cannot handle CGLIB enhanced proxies with multiple callbacks".. 
> Solution.
> i suggest to implement conditional enabling 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" />

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

Posted by "Lukasz Lenart (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/WW-3590?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13006360#comment-13006360 ] 

Lukasz Lenart commented on WW-3590:
-----------------------------------

What was wrong with PrefixBasedActionMapper ?

> REST service actions and "normal" actions in the same web application (patch)
> -----------------------------------------------------------------------------
>
>                 Key: WW-3590
>                 URL: https://issues.apache.org/jira/browse/WW-3590
>             Project: Struts 2
>          Issue Type: Improvement
>          Components: Plugin - REST
>    Affects Versions: 2.2.1.1
>         Environment: N/A
>            Reporter: Raigedas
>            Priority: Minor
>              Labels: namespaces, patch, rest
>             Fix For: 2.2.2
>
>         Attachments: rest namespace patch.txt
>
>   Original Estimate: 10m
>  Remaining Estimate: 10m
>
> 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" />

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

Posted by "Lukasz Lenart (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/WW-3590?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lukasz Lenart reassigned WW-3590:
---------------------------------

    Assignee: Lukasz Lenart

> REST service actions and "normal" actions in the same web application (patch)
> -----------------------------------------------------------------------------
>
>                 Key: WW-3590
>                 URL: https://issues.apache.org/jira/browse/WW-3590
>             Project: Struts 2
>          Issue Type: Improvement
>          Components: Plugin - REST
>    Affects Versions: 2.2.1.1
>         Environment: N/A
>            Reporter: Raigedas
>            Assignee: Lukasz Lenart
>            Priority: Minor
>              Labels: namespaces, patch, rest
>             Fix For: 2.2.2
>
>         Attachments: rest namespace patch.txt
>
>   Original Estimate: 10m
>  Remaining Estimate: 10m
>
> 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" />

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

Posted by "Raigedas (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/WW-3590?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13006389#comment-13006389 ] 

Raigedas commented on WW-3590:
------------------------------

hello,

it is not anything wrong with PrefixBasedActionMapper. but it is not enought. ActionMapper only determines mapping between request and action (that is - creates a ActionMapping object). but  regardless of what action has been found, rest plugin still provides the same execution mechanism. the configuration found in rest plugin (struts-plugn.xml file) confirms this:

<bean type="com.opensymphony.xwork2.ActionProxyFactory" name="rest" class="org.apache.struts2.rest.RestActionProxyFactory"/>
<constant name="struts.actionProxyFactory" value="rest"/>

my solution checks the namespace first, then:
* either allows execution in the rest-plugin-way
* or provides default execution mechanism by calling super method.

> REST service actions and "normal" actions in the same web application (patch)
> -----------------------------------------------------------------------------
>
>                 Key: WW-3590
>                 URL: https://issues.apache.org/jira/browse/WW-3590
>             Project: Struts 2
>          Issue Type: Improvement
>          Components: Plugin - REST
>    Affects Versions: 2.2.1.1
>         Environment: N/A
>            Reporter: Raigedas
>            Priority: Minor
>              Labels: namespaces, patch, rest
>             Fix For: 2.2.2
>
>         Attachments: rest namespace patch.txt
>
>   Original Estimate: 10m
>  Remaining Estimate: 10m
>
> 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" />

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

Posted by "Raigedas (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/WW-3590?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Raigedas updated WW-3590:
-------------------------

         Labels: namespaces patch rest  (was: )
    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" />

  was:
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 proble. "normal" actions throw "Cannot handle CGLIB enhanced proxies with multiple callbacks".. 

Solution.

i suggest to implement conditional enabling 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" />


> REST service actions and "normal" actions in the same web application (patch)
> -----------------------------------------------------------------------------
>
>                 Key: WW-3590
>                 URL: https://issues.apache.org/jira/browse/WW-3590
>             Project: Struts 2
>          Issue Type: Improvement
>          Components: Plugin - REST
>    Affects Versions: 2.2.1.1
>         Environment: N/A
>            Reporter: Raigedas
>            Priority: Minor
>              Labels: namespaces, patch, rest
>             Fix For: 2.2.2
>
>         Attachments: rest namespace patch.txt
>
>   Original Estimate: 10m
>  Remaining Estimate: 10m
>
> 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" />

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