Hi Kevin and Eric, I've added a check in Finder to make it work even if targetClass is null. This is a temporary workaround that will need to be improved in order to make SpringFinder support the new resource API. BTW, this support will be cleaner that with the Resource class because ServerResource has only one default constructor. Best regards, Jerome Louvel -- Restlet ~ Founder and Lead developer ~ <http://www.restlet.org/> http://www.restlet.org Noelios Technologies ~ Co-founder ~ <http://www.noelios.com/> http://www.noelios.com
_____ De : Kevin Conaway [mailto:kevin.cona...@gmail.com] Envoyé : mercredi 8 avril 2009 14:20 À : discuss@restlet.tigris.org Objet : Re: Spring + Restlet 1.2-SNAPSHOT, NullPointerException Hi Jerome, There is a bug specifically with the SpringFinder class.� The parent Finder was refactored such that it now checks to see that the "targetClass" property is an instance of Handler.� Previous versions of the class did not depend on targetClass to be non-null. Since the SpringFinder only deals with the createResource() method, the targetClass property is always null. Eric, as a temporary workaround, you can create your own SpringFinder class that overrides getTargetClass() to always return Resource.class.� Or you can set the targetClass property on all your SpringFinder instances. Kevin On Tue, Apr 7, 2009 at 1:35 PM, Jerome Louvel <jerome.lou...@noelios.com> wrote: Hi Eric, � Here is a sample configuration attached. You can check the source code here: http://restlet.tigris.org/source/browse/restlet/trunk/modules/org.restlet.test/src/org/restlet/test/ext/spring/ � Best regards, Jerome Louvel -- Restlet ~ Founder and Lead developer ~ <http://www.restlet.org/> http://www.restlet.org Noelios Technologies ~ Co-founder�~ <http://www.noelios.com/> http://www.noelios.com � _____ De�: Eric Hough [mailto:k2e...@gmail.com] Envoy��: vendredi 3 avril 2009 21:32 ��: discuss@restlet.tigris.org Objet�: Spring + Restlet 1.2-SNAPSHOT, NullPointerException I've been having trouble getting Spring to play nice with Restlet (I'm experienced with Spring, a newbie with Restlet, so please bear with me!). Using Spring 2.5.6 and Restlet 1.2-SNAPSHOT. I want to define a resource called "uniq" and map /uniq to my UniqResource bean (extends Resource). Simple, yeah? When I browse to http://localhost:8182/uniq, I get the following stack trace: Apr 3, 2009 10:54:19 AM org.restlet.engine.StatusFilter getStatus SEVERE: Unhandled exception or error intercepted java.lang.NullPointerException at java.lang.Class.isAssignableFrom(Native Method) at org.restlet.resource.Finder.handle(Finder.java:391) at org.restlet.routing.Filter.doHandle(Filter.java:156) at org.restlet.routing.Filter.handle(Filter.java:201) at org.restlet.routing.Router.handle(Router.java:520) at org.restlet.routing.Filter.doHandle(Filter.java:156) at org.restlet.routing.Filter.handle(Filter.java:201) at org.restlet.routing.Router.handle(Router.java:520) at org.restlet.routing.Filter.doHandle(Filter.java:156) at org.restlet.routing.Filter.handle(Filter.java:201) at org.restlet.routing.Router.handle(Router.java:520) at org.restlet.routing.Filter.doHandle(Filter.java:156) at org.restlet.engine.StatusFilter.doHandle(StatusFilter.java:153) at org.restlet.routing.Filter.handle(Filter.java:201) at org.restlet.routing.Filter.doHandle(Filter.java:156) at org.restlet.routing.Filter.handle(Filter.java:201) at org.restlet.engine.ChainHelper.handle(ChainHelper.java:126) at org.restlet.Component.handle(Component.java:724) at org.restlet.Server.handle(Server.java:355) at org.restlet.engine.ServerHelper.handle(ServerHelper.java:71) at org.restlet.engine.http.HttpServerHelper.handle(HttpServerHelper.java:149) at org.restlet.engine.http.StreamServerHelper$ConnectionHandler.run(StreamServerHelper.java:89) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:619) Apr 3, 2009 10:54:19 AM org.restlet.engine.LogFilter afterHandle INFO: 2009-04-03 10:54:19 127.0.0.1 - - 8182 GET /uniq - 500 365 - 39 http://localhost:8182 Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.8) Gecko/2009032711 Ubuntu/8.10 (intrepid) Firefox/3.0.8 - Here's my applicationContext.xml: <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans"; xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd";> <bean id="springComponent" class="org.restlet.ext.spring.SpringComponent" init-method="start" destroy-method="stop"> <property name="server"> <bean class="org.restlet.ext.spring.SpringServer"> <constructor-arg value="http" /> <constructor-arg value="8182" /> </bean> </property> <property name="defaultTarget" ref="springRouter" /> </bean> <bean id="springRouter" class="org.restlet.ext.spring.SpringBeanRouter" /> <bean name="/uniq" autowire="byName" id="uniqResource" class="org.example.uniq.rest.UniqResource" scope="prototype"> <property name="nextUniqDao" ref="nextUniqDao" /> </bean> </beans> And UniqResource.java: package org.example.uniq.rest; import java.io.StringReader; import org.example.uniq.dao.NextUniqDao; import org.restlet.data.MediaType; import org.restlet.data.Status; import org.restlet.representation.ReaderRepresentation; import org.restlet.representation.Representation; import org.restlet.representation.Variant; import org.restlet.resource.Resource; import org.restlet.resource.ResourceException; public class UniqResource extends Resource { private NextUniqDao nextUniqDao; public final void setNextUniqDao(NextUniqDao nextUniqDao) { this.nextUniqDao = nextUniqDao; } /** @see org.restlet.resource.Resource#represent(org.restlet.representation.Variant) */ public Representation represent(Variant variant) throws ResourceException { Long next = this.nextUniqDao.pop(); this.getResponse().setStatus(Status.SUCCESS_OK); return new ReaderRepresentation(new StringReader(next.toString()), MediaType.TEXT_PLAIN); } } Clearly I'm missing something basic, but I can't figure it out. Any help would be greatly appreciated! ------------------------------------------------------ http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=1596815
