Re: Help with dashboard widget

At last I have found the answer to my question - for anyone wanting to write
a widget, you need to deploy it below the dashboard web apps WEB-INF folder
structure. I was thinking I could simply put it within CC's main lib folder,
but no such luck!

/usr
    /share
        /cruisecontrol
            /lib        <- dont put the jar here, dashboard wont find it :(
            /webapps
                /dashboard
                    /WEB-INF
                       /lib    <- put the jar here, or in the correct folder
structure under classes

Doh! :)
Never mind, hopefully this will help someone else someday


Nathan Russell wrote:
> 
> Hi,
> 
> Wonder if anyone can help with something. I am trying to write a new
> dashboard widget. I've found a couple of pages on the web
> (http://cruisecontrol.sourceforge.net/widgets.html and
> http://www.nabble.com/Dashboard-PMD-widget...-td11127239.html), and
> looked up the source of the dashboard widgets as shipped with CC. Using
> these resources, I've written the following:
> 
>  
> 
> import
> net.sourceforge.cruisecontrol.dashboard.widgets.AbstractXslOutputWidget;
> 
> import net.sourceforge.cruisecontrol.dashboard.widgets.Widget;
> 
>  
> 
> public class VerifyIFPDashboardWidget extends AbstractXslOutputWidget
> implements Widget { 
> 
>  
> 
>       public String getDisplayName() { 
> 
>             return "Verify IFP Results"; 
> 
>       } 
> 
>  
> 
>       public String getXslPath() { 
> 
>             return "/webapps/cruisecontrol/xsl/verifyIFP.xsl"; 
> 
>       } 
> 
>  
> 
> } 
> 
>  
> 
> (instead of extending AbstractXslOutputWidget I have also tried writing
> my own 'public Object getOutput(Map parameters)' method. Both give the
> same result)
> 
>  
> 
> I've told CC about my new widget by adding it in dashboard-config.xml:
> 
>         <subtabs>
> 
>             <subtab
> class="net.sourceforge.cruisecontrol.dashboard.widgets.ErrorsAndWarnings
> MessagesWidget" />
> 
>             <subtab class="VerifyIFPDashboardWidget" />
> 
>         </subtabs>
> 
>  
> 
> I then restart CC. If I try to use dashboard with a browser, I see my
> list of projects; but then when I try to click on one (to see the screen
> with the tabs, and hopefully my new one), I get the following stack
> trace:
> 
> 
> HTTP ERROR: 500
> 
> argument type mismatch
> 
> RequestURI=/dashboard/tab/build/detail/projectA
> 
> 
> Caused by:
> 
> java.lang.IllegalArgumentException: argument type mismatch
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
> a:39)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
> Impl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:585)
>         at
> org.springframework.web.servlet.mvc.multiaction.MultiActionController.in
> vokeExceptionHandler(MultiActionController.java:646)
>         at
> org.springframework.web.servlet.mvc.multiaction.MultiActionController.ha
> ndleException(MultiActionController.java:616)
>         at
> org.springframework.web.servlet.mvc.multiaction.MultiActionController.in
> vokeNamedMethod(MultiActionController.java:451)
>         at
> org.springframework.web.servlet.mvc.multiaction.MultiActionController.ha
> ndleRequestInternal(MultiActionController.java:384)
>         at
> org.springframework.web.servlet.mvc.AbstractController.handleRequest(Abs
> tractController.java:153)
>         at
> org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handl
> e(SimpleControllerHandlerAdapter.java:48)
>         at
> org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherS
> ervlet.java:858)
>         at
> org.springframework.web.servlet.DispatcherServlet.doService(DispatcherSe
> rvlet.java:792)
>         at
> org.springframework.web.servlet.FrameworkServlet.processRequest(Framewor
> kServlet.java:476)
>         at
> org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.
> java:431)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
>         at
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
>         at
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362)
>         at
> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:2
> 16)
>         at
> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
>         at
> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729)
>         at
> org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
>         at
> org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandler
> Collection.java:206)
>         at
> org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.jav
> a:114)
>         at
> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
>         at org.mortbay.jetty.Server.handle(Server.java:324)
>         at
> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)
>         at
> org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConne
> ction.java:829)
>         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:513)
>         at
> org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
>         at
> org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
>         at
> org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:
> 395)
>         at
> org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java
> :488)
> 
> Powered by Jetty:// <http://jetty.mortbay.org/> 
> 
> (The same stack trace is in the CC log file)
> 
>  
> 
>  
> 
> What have I done wrong? Any ideas?
> 
> Cheers
> 
>  
> 
> Nathan
> 
>  
> 
> 
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