reta commented on a change in pull request #398: [Draft] SSE implementation
using AsyncContext
URL: https://github.com/apache/cxf/pull/398#discussion_r183244517
##########
File path:
rt/rs/sse/src/main/java/org/apache/cxf/jaxrs/sse/SseEventSinkContextProvider.java
##########
@@ -16,46 +16,85 @@
* specific language governing permissions and limitations
* under the License.
*/
-package org.apache.cxf.jaxrs.sse.atmosphere;
+
+package org.apache.cxf.jaxrs.sse;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Set;
+
+import javax.servlet.AsyncContext;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.ext.MessageBodyWriter;
import javax.ws.rs.sse.OutboundSseEvent;
import javax.ws.rs.sse.SseEventSink;
+import org.apache.cxf.interceptor.Fault;
import org.apache.cxf.jaxrs.ext.ContextProvider;
import org.apache.cxf.jaxrs.provider.ServerProviderFactory;
-import org.apache.cxf.jaxrs.sse.OutboundSseEventBodyWriter;
import org.apache.cxf.message.Message;
+import org.apache.cxf.phase.Phase;
+import org.apache.cxf.phase.PhaseInterceptor;
import org.apache.cxf.transport.http.AbstractHTTPDestination;
-import org.atmosphere.cpr.AtmosphereResource;
-import org.atmosphere.cpr.Broadcaster;
-public class SseAtmosphereEventSinkContextProvider implements
ContextProvider<SseEventSink> {
+public class SseEventSinkContextProvider implements
ContextProvider<SseEventSink> {
+
@Override
public SseEventSink createContext(Message message) {
final HttpServletRequest request =
(HttpServletRequest)message.get(AbstractHTTPDestination.HTTP_REQUEST);
if (request == null) {
throw new IllegalStateException("Unable to retrieve HTTP request
from the context");
}
- final AtmosphereResource resource = (AtmosphereResource)request
- .getAttribute(AtmosphereResource.class.getName());
- if (resource == null) {
- throw new IllegalStateException("AtmosphereResource is not
present, "
- + "is AtmosphereServlet configured properly?");
+ final MessageBodyWriter<OutboundSseEvent> writer = new
OutboundSseEventBodyWriter(
+ ServerProviderFactory.getInstance(message), message.getExchange());
+
+ AsyncContext ctx = request.startAsync();
Review comment:
I think I found the alternative solution to the custom interceptor, which
plays a bit more nicely with CXF / JAX-RS invocation lifecycle. Not sure if you
tried it as well, but here is the idea:
```
final AsyncResponse async = new AsyncResponseImpl(message);
return new SseEventSinkImpl(writer, async, request.getAsyncContext());
```
The JAXRSInvoker will properly suspend the invocation (through the
continuation provider) and as such, the interceptor chain as well. @csierra
what do you think?
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
With regards,
Apache Git Services
