Hi Anthony
That is a separate WebSocket standard - which was unfortunately not
synced at all with the JAX-RS work - so you either go that way or JAX-RS
way with a CXF WebSocket transport as far as supporting web sockets is
concerned.
Perhaps you can indeed have your service combining both JAX-RS and
WebSockets API but the JAX-RS methods will def not be called.
If you do decide to continue with the CXF WebSocket transport then
please do check what Atmosphere logs when it can not handle an Upgrade
request and let me know
Thanks, Sergey
On 29/09/16 20:40, MULLER, Anthony wrote:
Hi Sergey, Aki,
My application seems to work under Tomcat 8 with the following modifications:
1) Add @ServerEndpoint(value = "/services") on my service class (named
UserService.java)
2) Add a method into this class with the annotation @OnMessage like:
@OnMessage
public String hello(String message) {
return "Hello!";
}
3) Add the following dependency in my pom.xml
<dependency>
<groupId>javax.websocket</groupId>
<artifactId>javax.websocket-api</artifactId>
<version>1.0</version>
<scope>provided</scope>
</dependency>
With these changes, the sample almost works in both Tomcat version (7 and 8),
except that all websocket requests are routed to the method having @OnMessage
annotation :)
It seems it needs some configurations again :)
Hope this will help.
Best regards,
Anthony
-----Original Message-----
From: MULLER, Anthony [mailto:[email protected]]
Sent: jeudi 29 septembre 2016 15:18
To: [email protected]
Subject: RE: CXF 3.1 + Tomcat 8 + JAR-RS + Atmosphere + WebSocket
Hi Sergey,
Thanks very much, I deployed on Tomcat 7 and it works fine.
I will investigate deeper to try to understand what's going on with Tomcat 8...
Regards,
Anthony
-----Original Message-----
From: Sergey Beryozkin [mailto:[email protected]]
Sent: jeudi 29 septembre 2016 12:17
To: [email protected]
Subject: Re: CXF 3.1 + Tomcat 8 + JAR-RS + Atmosphere + WebSocket
Hi Anthony
Sorry it is my fault, I looked at the master source, not realizing 3.1.7
uses a different Atmosphere version (2.3.7).
I've run a websocket_web demo with a Tomcat 7 plugin and it works fine
for me. Can you confirm please this demo also works for you ?
Thanks, Sergey
On 29/09/16 08:47, MULLER, Anthony wrote:
Hi Sergey,
I made the recommended changes (upgrade Atmosphere and disable the async
feature of CXFServlet), I got this error when trying to connect.
Seems there is a mismatch between the used CXF version (3.1.7) and Atmosphere
(2.4.3).
Best regards,
Anthony
SEVERE: Servlet.service() for servlet [CXF Bootstrap] in context with path
[/cxf31_websocket] threw exception [Servlet execution threw an exception] with
root cause
java.lang.NoSuchMethodError:
org.atmosphere.cpr.AtmosphereRequest.wrap(Ljavax/servlet/http/HttpServletRequest;)Lorg/atmosphere/cpr/AtmosphereRequest;
at
org.apache.cxf.transport.websocket.atmosphere.AtmosphereWebSocketServletDestination.invoke(AtmosphereWebSocketServletDestination.java:73)
at
org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:234)
at
org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:208)
at
org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:160)
at
org.apache.cxf.transport.servlet.CXFNonSpringServlet.invoke(CXFNonSpringServlet.java:180)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:299)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.doGet(AbstractHTTPServlet.java:223)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.service(AbstractHTTPServlet.java:274)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:528)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1099)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:670)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1520)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1476)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
-----Original Message-----
From: Sergey Beryozkin [mailto:[email protected]]
Sent: mercredi 28 septembre 2016 17:54
To: [email protected]
Subject: Re: CXF 3.1 + Tomcat 8 + JAR-RS + Atmosphere + WebSocket
Hi Anthony
It all looks OK, except that you select the older Atmosphere version, it
has to be 2.4.3 - so start from removing that pom section where you get
an older version from the non-Central maven location.
The other thing - enabling async (suspended) continuations is not needed
for WebSocket (AFAIK), I'm not sure if it interferes, try disabling this
CXFServlet setting if using the latest Atmosphere does not help (it
would an issue of its own - but for now lets try to isolate where the
problem is)
Sergey
On 28/09/16 16:26, MULLER, Anthony wrote:
Hello CXF Experts, Sergey, Aki,
I have some issues to implement a simple test using WebSocket with CXF 3.1.7,
in a Tomcat 8 Servlet container.
To make troubleshooting easier, I shared my demo project (based on the official
CXF samples written by Aki):
https://github.com/AnthonyMullerPlayground/cxf31_websocket
The webapp context is "cxf31_websocket" and it contains a simple RESTful service running
under "/services/users" path.
The project also contains a basic index.html webpage to test the websocket.
CXF is bootstrapped using: org.apache.cxf.transport.servlet.CXFServlet
Spring is used to and configured this way with a "beans.xml" file:
<jaxrs:server id="websocketService" address="/"
transportId="http://cxf.apache.org/transports/websocket"; />
<context:component-scan base-package="com.sap.businessobjects.amuller"/>
When I check the websocket using Chrome, the following error is displayed in
the Network panel of the developer tools:
Request headers:
GET ws://localhost:8080/cxf31_websocket/services HTTP/1.1
Host: localhost:8080
Connection: Upgrade
Pragma: no-cache
Cache-Control: no-cache
Upgrade: websocket
Origin: http://localhost:8080
Sec-WebSocket-Version: 13
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36
(KHTML, like Gecko) Chrome/53.0.2785.116 Safari/537.36
Accept-Encoding: gzip, deflate, sdch
Accept-Language: en-US,en;q=0.8,fr;q=0.6
Sec-WebSocket-Key: Uc/E4OEE/BnKx/EvHUgLtQ==
Sec-WebSocket-Extensions: permessage-deflate; client_max_window_bits
Response headers:
HTTP/1.1 501 Not Implemented
Server: Apache-Coyote/1.1
X-Atmosphere-first-request: true
X-Atmosphere-tracking-id: aeeb9f45-62e8-45b4-9d37-4657988e20ec
X-Atmosphere-error: Websocket protocol not supported
Transfer-Encoding: chunked
Date: Wed, 28 Sep 2016 15:21:58 GMT
Connection: close
No error is displayed in the Eclipse console... I'm stuck because I didn't really get the
magic behind the scene. It seems that the transportId attribute is enabling the full
WebSocket logic? (transportId="http://cxf.apache.org/transports/websocket";)
Thanks for your help and explanations.
Best regards,
Anthony MÜLLER
--
Sergey Beryozkin
Talend Community Coders
http://coders.talend.com/
