RE: RIAP Client from within my J2EE application (jboss)
Hi Andew, The pseudo RIAP protocol is supported internally by the Restlet engine and doesn't require you to declare any client and server connector. That means that in order to issue a RIAP call, you need to have a hold on your parent Context instance. In your case, it seems that Application.getCurrent() returns null because the calling thread isn't the one that was initially processing the call, but a Quartz worker thread instead. You would be stuck, but in Restlet 2.0 M4, we added RIAP client and server connectors to support riap://component dispatching even when you have no hold on the current context. This works using a RiapServerHelper singleton. I suggest that you try again with Restlet 2.0 M4, looking at the attached test case for guidance. Best regards, Jerome Louvel -- Restlet ~ Founder and Lead developer ~ http://www.restlet.org Noelios Technologies ~ Co-founder ~ http://www.noelios.com -Message d'origine- De : Andrew Moore [mailto:rp.andrew.mo...@gmail.com] Envoyé : jeudi 30 juillet 2009 19:29 À : discuss@restlet.tigris.org Objet : Re: RIAP Client from within my J2EE application (jboss) I'm definitely still having issues... A little more background: we have a quartz job that calls a class which is trying to make these requests. The Job class I created really has no context for the my restlet application. I'm not sure I'm creating my client correctly... when I create it like this (which seems my only option since I don't have access to a Context object): Client riapClient = new Client(Protocol.RIAP); riapClient.start(); I get a warning message: WARNING: No available client connector supports the required protocols: 'RIAP' . Please add the JAR of a matching connector to your classpath. I haven't seen a jar to add (and shouldn't this be part of the basic restlet jar anyway?). When I try and start my client, a NullPointerException gets thrown from somewhere inside the start() method. I'm assuming this is probably due to not having a Context specified. But, I am having a hard time trying to understand how I can get a Context object from my application. I haven't found any example code for instantiating and using an RIAP based Client. I've seen (and used) RIAP requests from within a ServerResource to another ServerResource, but not an RIAP request from a Client to the ServerResource. I'm pretty sure I'm missing some sort of concept or using the Client in a way it wasn't intended perhaps. Any help explaining what I'm missing or pointing me to some example code of an RIAP Client that is sitting on the server-side would be greatly appreciated! Regards, Andrew -- View this message in context: http://n2.nabble.com/RIAP-Client-from-within-my-J2EE-application-%28jboss%29 -tp3353312p3357728.html Sent from the Restlet Discuss mailing list archive at Nabble.com. -- http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447dsMessageId=23770 64 -- http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447dsMessageId=2384073 RiapConnectorsTestCase.java Description: Binary data
Re: RIAP Client from within my J2EE application (jboss)
On Sun, Aug 16, 2009 at 11:32 AM, Jerome Louvel jerome.lou...@noelios.comwrote: In your case, it seems that Application.getCurrent() returns null because the calling thread isn't the one that was initially processing the call, but a Quartz worker thread instead. I don't know enough about Quartz to give details, but after a quick scan at the Quartz javadocs, I bet that a technique similar to that used in Restlet's TaskService class could be used to wrap a Quartz Scheduler to make sure that all Jobs execute with a current Application. --tim -- http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447dsMessageId=2384083
Re: RIAP Client from within my J2EE application (jboss)
Thanks, I'll give that a shot and let you know if it works or what I'm still stuck on. Regards, Andrew -- View this message in context: http://n2.nabble.com/RIAP-Client-from-within-my-J2EE-application-%28jboss%29-tp3353312p3356788.html Sent from the Restlet Discuss mailing list archive at Nabble.com. -- http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447dsMessageId=2376983
Re: RIAP Client from within my J2EE application (jboss)
I'm definitely still having issues... A little more background: we have a quartz job that calls a class which is trying to make these requests. The Job class I created really has no context for the my restlet application. I'm not sure I'm creating my client correctly... when I create it like this (which seems my only option since I don't have access to a Context object): Client riapClient = new Client(Protocol.RIAP); riapClient.start(); I get a warning message: WARNING: No available client connector supports the required protocols: 'RIAP' . Please add the JAR of a matching connector to your classpath. I haven't seen a jar to add (and shouldn't this be part of the basic restlet jar anyway?). When I try and start my client, a NullPointerException gets thrown from somewhere inside the start() method. I'm assuming this is probably due to not having a Context specified. But, I am having a hard time trying to understand how I can get a Context object from my application. I haven't found any example code for instantiating and using an RIAP based Client. I've seen (and used) RIAP requests from within a ServerResource to another ServerResource, but not an RIAP request from a Client to the ServerResource. I'm pretty sure I'm missing some sort of concept or using the Client in a way it wasn't intended perhaps. Any help explaining what I'm missing or pointing me to some example code of an RIAP Client that is sitting on the server-side would be greatly appreciated! Regards, Andrew -- View this message in context: http://n2.nabble.com/RIAP-Client-from-within-my-J2EE-application-%28jboss%29-tp3353312p3357728.html Sent from the Restlet Discuss mailing list archive at Nabble.com. -- http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447dsMessageId=2377064
RIAP Client from within my J2EE application (jboss)
Hi, We're running a J2EE app on JBOSS, but we've started integrating Restlet so that hopefully we can ditch our legacy app and move on with RESTful services. The short story is hopefully some other folks will be able to use our new Restlet service to get the resources they need, but if they can't (due to a deadline crunch) then we need to do the leg work for them: request from our own service and give them the returned resource through a legacy mechanism they know already works. I'm wanting to write a server-side client (oxymoron?) that uses RIAP so I can bypass the HTTP overhead and keep request internal. I'd also like to do it without having to specify any configuration information related to the host we've installed our application on. I figured my best shot was to write a client on the server-side (within our application on the same jvm) using the RIAP protocol. I know I have my restlet application routing internal RIAP requests correctly as I previously dabbled with some server resources that called each other... I feel like I've tried a number of things... but I think my general problem is I don't seem to have access to Context of my restlet Application. I thought at one point I could call the static method getCurrent() on my Application (i.e. MyRestletApplication.getCurrent()) and then make my riap request through there: MyRestletApplication.getCurrent().getContext().getClientDispatcher().get(riap://component/path-to-my-resource) That didn't seem to work... the MyRestletApplication.getCurrent() only returns null. Is that something I need to set in the MyRestletApplication.createRoot() method? I also tried just creating a Client with the RIAP protocol: Client myclient = new Client(Protocol.RIAP); ...but that doesn't seem to work as I don't have a Context for MyRestletApplication. I appreciate any help, direction and insight as to how I can accomplish this. Thanks in advance! Regards, Andrew -- View this message in context: http://n2.nabble.com/RIAP-Client-from-within-my-J2EE-application-%28jboss%29-tp3353312p3353312.html Sent from the Restlet Discuss mailing list archive at Nabble.com. -- http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447dsMessageId=2376769
Re: RIAP Client from within my J2EE application (jboss)
Can you try riap://host instead of riap://component and see if that works for you? This is kind of cargo cult advice but we have mainly changed to that, and it works. Untested hypothesis: component/application context visibility issues (added for security reasons around 1.2M2 IIRC) prevent you from using riap://component from an Application context. On Wed, Jul 29, 2009 at 7:44 PM, Andrew Moore rp.andrew.mo...@gmail.comwrote: I thought at one point I could call the static method getCurrent() on my Application (i.e. MyRestletApplication.getCurrent()) and then make my riap request through there: MyRestletApplication.getCurrent().getContext().getClientDispatcher().get(riap://component/path-to-my-resource) -- http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447dsMessageId=2376774
