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Posted to user@tuscany.apache.org by kelvin goodson <kg...@thegoodsons.org.uk> on 2010/02/16 21:39:14 UTC

changed behaviour in store sample

I'm seeing changed behaviour in the sample-store project after
startup. If I fire up the launcher and point Firefox with Firebird at
http://localhost:8080/store/, the first time I run it I see Firebird
"Break on Error"

tuscany is not defined

Line 29

which is ...
 var catalog = new tuscany.sca.Reference("catalog");

and the console contains  ....
store.composite ready for big business !!!
16-Feb-2010 20:17:38 org.apache.tuscany.sca.http.jetty.JettyLogger warn
WARNING: /store/store.js
java.lang.NullPointerException
	at org.apache.tuscany.sca.core.assembly.impl.RuntimeEndpointReferenceImpl.initInvocationChains(RuntimeEndpointReferenceImpl.java:274)
	at org.apache.tuscany.sca.core.assembly.impl.RuntimeEndpointReferenceImpl.getInvocationChains(RuntimeEndpointReferenceImpl.java:186)
	at org.apache.tuscany.sca.implementation.widget.dojo.DojoJavaScriptComponentGeneratorImpl.generateJavaScriptCode(DojoJavaScriptComponentGen
eratorImpl.java:73)
	at org.apache.tuscany.sca.implementation.widget.provider.WidgetComponentScriptServlet.doGet(WidgetComponentScriptServlet.java:60)
	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:502)
	at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:389)
	at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
	at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
	at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
	at org.mortbay.jetty.Server.handle(Server.java:326)
	at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:534)
	at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:864)
	at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:539)
	at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
	at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
	at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
	at org.apache.tuscany.sca.core.work.impl.Work.run(Work.java:63)
	at org.apache.tuscany.sca.core.work.impl.ThreadPoolWorkManager$DecoratingWork.run(ThreadPoolWorkManager.java:214)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)


If I allow the execution to proceed, Firebird tells me catalog is not defined
allowing the execution to proceed further gives a popup "catalog is
not defined"

If I continue refreshing the browser, this behaviour repeats for a
further 2 occasions,  If I then refresh one more time I see the
store's catalog perfectly well and can add items to the cart.


does anyone have any clues as to what's changed or why this is happening?

Re: changed behaviour in store sample

Posted by Luciano Resende <lu...@gmail.com>.
On Tue, Feb 16, 2010 at 1:41 PM, Luciano Resende <lu...@gmail.com> wrote:
> I see the same behavior, and it seems related to recent changes in how
> the runtime is handling EP/EPR. I guess Widget and Implementation Web
> have a slight different behavior and this wasn't taken in
> consideration and we probably need two things here : a) at least
> workaround similar to the one introduced in  revision #887662 and a
> test case that will identify breakage on the store scenario (this is
> available in tutorials in 1.x)
>

I have created TUSCANY-3468 to track this issue

[1] https://issues.apache.org/jira/browse/TUSCANY-3468


-- 
Luciano Resende
http://people.apache.org/~lresende
http://twitter.com/lresende1975
http://lresende.blogspot.com/

Re: changed behaviour in store sample

Posted by Luciano Resende <lu...@gmail.com>.
On Tue, Feb 16, 2010 at 12:39 PM, kelvin goodson <kg...@thegoodsons.org.uk> wrote:
> I'm seeing changed behaviour in the sample-store project after
> startup. If I fire up the launcher and point Firefox with Firebird at
> http://localhost:8080/store/, the first time I run it I see Firebird
> "Break on Error"
>
> tuscany is not defined
>
> Line 29
>
> which is ...
>  var catalog = new tuscany.sca.Reference("catalog");
>
> and the console contains  ....
> store.composite ready for big business !!!
> 16-Feb-2010 20:17:38 org.apache.tuscany.sca.http.jetty.JettyLogger warn
> WARNING: /store/store.js
> java.lang.NullPointerException
>        at org.apache.tuscany.sca.core.assembly.impl.RuntimeEndpointReferenceImpl.initInvocationChains(RuntimeEndpointReferenceImpl.java:274)
>        at org.apache.tuscany.sca.core.assembly.impl.RuntimeEndpointReferenceImpl.getInvocationChains(RuntimeEndpointReferenceImpl.java:186)
>        at org.apache.tuscany.sca.implementation.widget.dojo.DojoJavaScriptComponentGeneratorImpl.generateJavaScriptCode(DojoJavaScriptComponentGen
> eratorImpl.java:73)
>        at org.apache.tuscany.sca.implementation.widget.provider.WidgetComponentScriptServlet.doGet(WidgetComponentScriptServlet.java:60)
>        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:502)
>        at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:389)
>        at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
>        at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
>        at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
>        at org.mortbay.jetty.Server.handle(Server.java:326)
>        at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:534)
>        at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:864)
>        at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:539)
>        at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
>        at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
>        at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
>        at org.apache.tuscany.sca.core.work.impl.Work.run(Work.java:63)
>        at org.apache.tuscany.sca.core.work.impl.ThreadPoolWorkManager$DecoratingWork.run(ThreadPoolWorkManager.java:214)
>        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
>        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
>        at java.lang.Thread.run(Unknown Source)
>
>
> If I allow the execution to proceed, Firebird tells me catalog is not defined
> allowing the execution to proceed further gives a popup "catalog is
> not defined"
>
> If I continue refreshing the browser, this behaviour repeats for a
> further 2 occasions,  If I then refresh one more time I see the
> store's catalog perfectly well and can add items to the cart.
>
>
> does anyone have any clues as to what's changed or why this is happening?
>

I see the same behavior, and it seems related to recent changes in how
the runtime is handling EP/EPR. I guess Widget and Implementation Web
have a slight different behavior and this wasn't taken in
consideration and we probably need two things here : a) at least
workaround similar to the one introduced in  revision #887662 and a
test case that will identify breakage on the store scenario (this is
available in tutorials in 1.x)

-- 
Luciano Resende
http://people.apache.org/~lresende
http://lresende.blogspot.com/