Well, i still have an issue, so i'll continue on this thread. While handling my AsyncResponse I have the following issue :
As soon as I call setTimeout(...) the AsyncResponse is "resumed" and the completionCallback is called. Looks like that in CXF's AsyncResponseImpl (I look at the code to understand) : - setTimeout sets 'newTimeoutRequest' to true - setTimeout callses resume() * EXPECTED : the code expects 'handleTimeout' to be called (to then suspend again the asyncResponse with the new timeout value) * GUESSED : the "Continuation" impl assumes that everything is done concerning the request (resume() was called) and calls the onComplete callback (and sends an empty body in the answer). That being said, I can handle the timeouts on my own; but doesn't this look like a bug ? -----Message d'origine----- De : [email protected] [mailto:[email protected]] Envoyé : jeudi 8 novembre 2012 15:05 À : [email protected] Objet : RE: CXFServlet, Asynchronous JAX-RS server, Tomcat 7 Just after sending this mail I made the correct google-search and noticed I forgot to put the setting : <async-supported>true</async-supported> In the <servlet> definition in web.xml. ... *hides in a corner* So, now web.xml is : <web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"; xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd";> <servlet> <servlet-name>CXFServlet</servlet-name> <servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class> <load-on-startup>1</load-on-startup> <async-supported>true</async-supported> </servlet> <servlet-mapping> <servlet-name>CXFServlet</servlet-name> <url-pattern>/cxf/*</url-pattern> </servlet-mapping> </web-app> The error disappeared, I have some issues sending the answer, but I guess it's totally related to my code ! Hope it will save time to others. -----Message d'origine----- De : [email protected] [mailto:[email protected]] Envoyé : jeudi 8 novembre 2012 14:48 À : [email protected] Objet : CXFServlet, Asynchronous JAX-RS server, Tomcat 7 Hi I'm currently trying to implement an asynchronous jax-rs server (the client will be doing some long-polling, waiting for events, so I don't want to lock threads on the server). My target environment is JOnAS 5.2.1 (using Tomcat7 container), but I'm first trying to make it work on a vanilla Tomcat7 (for now I have the same issue on both). The error I have is a NPE : Caused by: java.lang.NullPointerException at org.apache.cxf.jaxrs.impl.AsyncResponseImpl.<init>(AsyncResponseImpl.java:58) at org.apache.cxf.jaxrs.utils.JAXRSUtils.processParameter(JAXRSUtils.java:650) at org.apache.cxf.jaxrs.utils.JAXRSUtils.processParameters(JAXRSUtils.java:624) at org.apache.cxf.jaxrs.interceptor.JAXRSInInterceptor.processRequest(JAXRSInInterceptor.java:224) at org.apache.cxf.jaxrs.interceptor.JAXRSInInterceptor.handleMessage(JAXRSInInterceptor.java:94) at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:271) ... 26 more I'm trying to use CXF the (I think) simplest way with simple examples (see end of mail). I've been looking around in the code, from what I've understood, AsyncResponse is supposed to work with either : * jetty (provides a ContinuationProviderFactory on the bus) * servlets 3.0 (checks existence of method "isAsyncSupported" on class ServletRequest) If neither of those conditions is met, then the NullPointerException should happen. However I'm using tomcat 7 and it's supposed to work via the servlets 3.0 support. So I'm guessing that maybe the servlet is still running on servlet 2.x despites being on tomcat 7, maybe that it's because I'm using org.apache.cxf.transport.servlet.CXFServlet ? Or I missed a switch somewhere ? I'm quite stuck, but I'd really like to use this feature (asynchronous server-side) for JAX-RS (and then to see if there is something similar for JAX-WS). Thanks in advance!!! web.xml (to start cxf-servlet) <web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"; xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd";> <servlet> <servlet-name>CXFServlet</servlet-name> <servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>CXFServlet</servlet-name> <url-pattern>/cxf/*</url-pattern> </servlet-mapping> </web-app> cxf-servlet.xml (default spring definition) <beans xmlns="http://www.springframework.org/schema/beans"; xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xmlns:jaxws="http://cxf.apache.org/jaxws"; xmlns:jaxrs="http://cxf.apache.org/jaxrs"; xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd http://cxf.apache.org/jaxws http://cxf.apache.org/schemas/jaxws.xsd http://cxf.apache.org/jaxrs http://cxf.apache.org/schemas/jaxrs.xsd";> <import resource="classpath:META-INF/cxf/cxf.xml"/> <import resource="classpath:META-INF/cxf/cxf-servlet.xml"/> <jaxws:endpoint id="greeter" implementor="com.mycompany.demo.StockQuoteReporter" address="/StockQuoteReporter"/> <jaxrs:server id="helloworlder" serviceClass="demo.rs.server.HelloWorldResource" address="/helloworld"/> </beans> HelloWorldResource.java // some imports... @Path("/say") public class HelloWorldResource { @GET @Produces("text/plain") public void helloWorld(AsyncResponse asyncResponse) { asyncResponse.setTimeout(1000, TimeUnit.MILLISECONDS); asyncResponse.setTimeoutHandler(new TimeoutHandler() { public void handleTimeout(AsyncResponse ar) { ar.resume("timeout"); } }); } } _________________________________________________________________________________________________________________________ Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc pas etre diffuses, exploites ou copies sans autorisation. 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Thank you. _________________________________________________________________________________________________________________________ Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration, France Telecom - Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci. This message and its attachments may contain confidential or privileged information that may be protected by law; they should not be distributed, used or copied without authorisation. If you have received this email in error, please notify the sender and delete this message and its attachments. As emails may be altered, France Telecom - Orange is not liable for messages that have been modified, changed or falsified. Thank you. _________________________________________________________________________________________________________________________ Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration, France Telecom - Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci. This message and its attachments may contain confidential or privileged information that may be protected by law; they should not be distributed, used or copied without authorisation. If you have received this email in error, please notify the sender and delete this message and its attachments. As emails may be altered, France Telecom - Orange is not liable for messages that have been modified, changed or falsified. Thank you.
