RE: Issues with Directory and Custom contexts

2008-05-14 Thread Jerome Louvel 

Hi Alex,

I have fixed this potential NPE in SVN trunk.  

Can't you directly pass your Component's context to the Application
constructor instead of having to recreate it manually via the internal
'createContext()' method?

Best regards,
Jerome


-Message d'origine-
De : [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] De la part de Alex
Milowski
Envoyé : mardi 13 mai 2008 02:52
À : discuss@restlet.tigris.org
Objet : Issues with Directory and Custom contexts

I'm loading applications directly from jar files and constructing
their context.  I ran into a problem where an application that
uses the Directory restlet would generate a null pointer exception.

That is, if I construct the context as:

 Context appContext = new Context(getLogger());

then I get this stack trace:

java.lang.NullPointerException
at
com.noelios.restlet.application.ApplicationClientDispatcher.parentHandle(App
licationClientDispatcher.java:105)
at
com.noelios.restlet.application.ApplicationClientDispatcher.doHandle(Applica
tionClientDispatcher.java:90)
at
com.noelios.restlet.TemplateDispatcher.handle(TemplateDispatcher.java:101)
at org.restlet.Uniform.handle(Uniform.java:95)
at org.restlet.Uniform.get(Uniform.java:83)
at
com.noelios.restlet.local.DirectoryResource.init(DirectoryResource.java:17
0)
at
com.noelios.restlet.Engine.createDirectoryResource(Engine.java:292)
at org.restlet.Directory.findTarget(Directory.java:159)
at org.restlet.Finder.handle(Finder.java:316)
at org.restlet.Filter.doHandle(Filter.java:137)
at org.restlet.Filter.handle(Filter.java:180)
at org.restlet.Filter.doHandle(Filter.java:137)
at com.noelios.restlet.StatusFilter.doHandle(StatusFilter.java:117)
at org.restlet.Filter.handle(Filter.java:180)
at org.restlet.Filter.doHandle(Filter.java:137)
at org.restlet.Filter.handle(Filter.java:180)
at com.noelios.restlet.ChainHelper.handle(ChainHelper.java:140)
at
com.noelios.restlet.application.ApplicationHelper.handle(ApplicationHelper.j
ava:103)
at org.restlet.Application.handle(Application.java:305)


I can solve this by constructing the application context from the component
as:

 Context appContext =
Engine.getInstance().createHelper(MyComponent.this).createContext(getLogger(
).getName());

This seems rather non-obvious :(

--Alex Milowski

Re: Issues with Directory and Custom contexts

2008-05-14 Thread Alex Milowski 
On Wed, May 14, 2008 at 12:27 AM, Jerome Louvel [EMAIL PROTECTED] wrote:

 Hi Alex,

 I have fixed this potential NPE in SVN trunk.

 Can't you directly pass your Component's context to the Application
 constructor instead of having to recreate it manually via the internal
 'createContext()' method?

In this case, no.

I need to have a different set of parameters and attributes.

Maybe my use case is just non-trivial and so the strange constructor for
the context is also non-trivial.

--Alex Milowski

Issues with Directory and Custom contexts

2008-05-12 Thread Alex Milowski 
I'm loading applications directly from jar files and constructing
their context.  I ran into a problem where an application that
uses the Directory restlet would generate a null pointer exception.

That is, if I construct the context as:

 Context appContext = new Context(getLogger());

then I get this stack trace:

java.lang.NullPointerException
at 
com.noelios.restlet.application.ApplicationClientDispatcher.parentHandle(ApplicationClientDispatcher.java:105)
at 
com.noelios.restlet.application.ApplicationClientDispatcher.doHandle(ApplicationClientDispatcher.java:90)
at 
com.noelios.restlet.TemplateDispatcher.handle(TemplateDispatcher.java:101)
at org.restlet.Uniform.handle(Uniform.java:95)
at org.restlet.Uniform.get(Uniform.java:83)
at 
com.noelios.restlet.local.DirectoryResource.init(DirectoryResource.java:170)
at com.noelios.restlet.Engine.createDirectoryResource(Engine.java:292)
at org.restlet.Directory.findTarget(Directory.java:159)
at org.restlet.Finder.handle(Finder.java:316)
at org.restlet.Filter.doHandle(Filter.java:137)
at org.restlet.Filter.handle(Filter.java:180)
at org.restlet.Filter.doHandle(Filter.java:137)
at com.noelios.restlet.StatusFilter.doHandle(StatusFilter.java:117)
at org.restlet.Filter.handle(Filter.java:180)
at org.restlet.Filter.doHandle(Filter.java:137)
at org.restlet.Filter.handle(Filter.java:180)
at com.noelios.restlet.ChainHelper.handle(ChainHelper.java:140)
at 
com.noelios.restlet.application.ApplicationHelper.handle(ApplicationHelper.java:103)
at org.restlet.Application.handle(Application.java:305)


I can solve this by constructing the application context from the component as:

 Context appContext =
Engine.getInstance().createHelper(MyComponent.this).createContext(getLogger().getName());

This seems rather non-obvious :(

--Alex Milowski