Details
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Type:
Improvement
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Status: Closed
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: 2.0-Alpha1
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Fix Version/s: 2.0-Alpha2, 2.0.0
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Component/s: Framework
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Labels:None
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Environment:ICEfaces
Description
ICEfaces should take advantage of Servlet 3.0 asynchronous features.
Activity
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Please propagate AsyncAdaptingServlet.java to snowplow.
To enable async support in Servlet 3.0, use the following web.xml modifications:
-<web-app version="2.5"
+<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_2_5.xsd">
+ xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
<display-name>Auction</display-name>
<description>
@@ -45,6 +45,7 @@
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
+ <async-supported>true</async-supported>
</servlet>
Introduced Servlet 3.0 adapting servlet. Simplified EnvironmentAdaptingServlet by removing Glassfish specific detection and the use of factories for creating the matching adapting servlet.
Need to remove the Jetty Continuations specific code.
Removed Jetty specific code. Only thread blocking and Servlet 3.0 ARP adaptations are used now.
Would be useful if we could add the following annotation to FacesServlet:
@WebServlet(asyncSupported=true)
It's important to test the Servlet 3.0 push features of ICEfaces 2.0 even though the ultimate approach will be to have a standalone notification service: the usage pattern will be similar and it is important that shipping Servlet 3.0 containers are stable under ICEfaces.
GlassFish and Jetty provide Servlet 3.0 implementations, and a Tomcat branch does contain the Servlet 3.0 APIs.
(Initial testing will require building and troubleshooting of application servers from source code or nightly binaries, so this is not likely effective as a QA task.)