Jetty-6 Continuations
introduced the concept of asynchronous servlets to provide scalability
and quality of service to web 2.0 applications such as chat,
collaborative editing, price publishing, as well as powering HTTP based
frameworks like cometd, apache camel, openfire XMPP and flex BlazeDS.
With the introduction of similar asynchronous features in Servlet-3.0, some have suggested that the Continuation API would be deprecated. Instead, the Continuation API has been updated to provide a simplified portability run asynchronously on any servlet 3.0 container as well as on Jetty (6,7 & 8). Continuations will work synchronously (blocking) on any 2.5 servlet container. Thus programming to the Continuations API allows your application to achieve asynchronicity today without waiting for the release of stable 3.0 containers (and needing to upgrade all your associated infrastructure).
[Read More]Posted at 09:11PM Jul 02, 2009 by gregw in General | Comments[1]
The announcement of Google Wave is a bold declaration of where google sees the future of the web. Google, unsurprisingly enough, sees the future of the web as a server side paradigm, with dynamic updates being used to drive the thin client model to capture even more of tasks that where once done client side. Google are extending the server side model of webmail to apply to applications that have been fundamentally client side, such as document authoring, IM and chat.[Read More]
Posted at 12:32PM Jun 13, 2009 by gregw in General | Comments[0]
Bidirectional Web Transfer Protocol - BWTP
I really like the idea behind the HTML5 Websocket API - namely that a datagram model should be used for web application communication rather than a request/response paradigm (this is also the idea behind cometd). But unfortunately, the proposed protocol to carry websocket traffic is neither a good protocol nor is it well specified.[Read More]
Posted at 03:38PM Jun 12, 2009 by gregw in General | Comments[1]
Webtide/Jetty gathering at JavaOne
For SnoracleZero (aka Java One) this year, we are planning a social get together of Jetty users and Webtide clients 8pm Tuesday (June 2).[Read More]
Posted at 10:49AM May 27, 2009 by gregw in General | Comments[1]
Roadmap for Jetty-6, Jetty-7 and Jetty-8
This blog updates the roadmap for jetty-6, jetty-7 and jetty-8 with the latest plans resulting from the move to the Eclipse Foundation and the delay in the servlet-3.0 specification.[Read More]
Posted at 02:47PM May 26, 2009 by gregw in General | Comments[7]
Servlet 3.0 Proposed "Final" Draft
I previously strongly criticised the Servlet 3.0 JSR-315 process and the resulting Public Review Draft, describing it as a: "poor document and the product of a discordant expert group (EG) working within a flawed process" and of producing a "Frankenstein monster, cobbled together from eviscerated good ideas and misguided best intentions".
... I'd like to focus on the improved spirit of the group and highlight some of the technical achievements that have resulted.
[Read More]Posted at 10:55PM May 21, 2009 by gregw in General | Comments[4]
Greg Wilkins will be presenting a webinar on Jetty @ http://live.eclipse.org April 27 - 1:00 pm PDT / 4:00 pm EDT / 8:00 pm GMT[Read More]
Posted at 08:54AM Apr 27, 2009 by gregw in General | Comments[0]
Hot on the heels of Google Widget Toolkit(GWT) switching to Jetty, the little server that can has received some more Google luv'n! Googles new App Engine Java service is powered by Jetty! With App Engine, you can build web applications using standard Java technologies and run them on Google's scalable infrastructure.[Read More]
Posted at 12:08PM Apr 10, 2009 by gregw in General | Comments[5]
Maven, m2e and the Nexus Repository manager
Jetty-7 is moving to eclipse, cometd-java is moving from jetty to cometd.org and the maven build system for dojo has been moved out of the main dojo tree. So I'm involved in some major refactoring of three interdependent projects at the same time. This refactoring would be impossible to contemplate without the tools support for these projects. Maven, m2e and nexus are making my life a lot easier![Read More]
Posted at 06:50PM Apr 01, 2009 by gregw in General | Comments[0]
The jetty @ eclipse project is now in incubation at the eclipse foundation as part of the EclipseRT runtime project. On Tuesday 24th March, the Jetty-7 code base was converted to org.eclipse.jetty package space and checked into the eclipse jetty svn repository!!![Read More]
Posted at 04:04AM Mar 26, 2009 by gregw in General | Comments[0]
Cometd Acknowledged Message Extension
With the release of the latest cometd-jetty in Jetty 6.1.15, the oft requested feature of reliable message delivery is now supported by the Acknowledged Message Extension in the jetty server and in the dojo and jquery clients... ... provide an acknowledged message mechanism for reliable message delivery.[Read More]
Posted at 01:54AM Mar 11, 2009 by gregw in General | Comments[1]
Mingfai Ma has created a grails cometd plugin that combines grails 1.1,
jetty-6.1 and cometd 6.1.12 to provide spring based grails application
environment.
[Read More]
Posted at 09:44AM Jan 30, 2009 by gregw in General | Comments[4]
Servlet 3.0 Public Review : Update
I have been working on an implementation of the Servlet-3.0 asynchronous servlets with some the fixes/extensions I suggested in my previous blog and from some continuing discussion within the EG. This implementation demonstrates that significant asynchronous behaviour can be implemented without the complexities of redispatching wrapped requests or the forward(path) methods.[Read More]
Posted at 09:33PM Dec 20, 2008 by gregw in General | Comments[3]
JSR-315 has produced a Public Review (PR) of the servlet 3.0 specification, which unfortunately is a poor document and the product of a discordant expert group (EG) working within a flawed process.[...] Significant effort has been put into the PR proposal [...] but unfortunately it has become a Frankenstein monster, cobbled together from eviscerated good ideas and misguided best intentions. The 8 methods of the ED proposal that were rejected as being too complex and confusing have been replaced by 20 methods and 3 new interfaces! [...] The EG is desperately in need of community feedback and probably another round of Public Review after a beta RI is made available.
Posted at 06:04AM Dec 16, 2008 by gregw in General | Comments[23]
Scalable BlazeDS with async Jetty
Valery Silaev has pointed me to an article on flex.sys-con.com that demonstrates how the asynchronous features of Jetty have been used by Farata Systems to achieve some excellent scalability results with BlazeDS.
BlazeDS is an open source server side that provides comet style streaming events to a flex/flash client side (not strictly comet as it is not strictly ajax).
Posted at 11:09PM Oct 29, 2008 by gregw in General | Comments[0]
