Jetty JMX Webservice is a webapp providing a RESTful API to query JMX mbeans and invoke mbean operations without the hassle that comes with RMI. No more arguments with your firewall admin, just a single http port. That alone might not be a killer feature, but Jetty JMX Webservice also Read more…
The Jetty Overlay Deployer allows multiple WAR files to be overlayed so that a web application can be customised, configured and deployed without the need to unpack, modify and repack the WAR file. This has the benefits of: The WAR file may be kept immutable, even signed, so that it Read more…
In the last blog entry I talked about message flow control using CometD‘s lazy channels. Now I want to show how it is possible to achieve a similar flow control using specialized listeners that allow to manipulate the ServerSession message queue. The ServerSession message queue is a data structure that Read more…
Since the very beginning, Jetty has been IOC friendly and thus has been able to be configured with spring. But the injecting and assembling the jetty container is not the only need that Jetty has for configuration and there are several other configuration files (eg contexts/yourapp.xml, jetty-web.xml, jetty-env.xml) that have Read more…
The WebSockets protocol and API is an emerging standard to provide better bidirectional communication between a browser (or other web client) and a server. It is intended to eventually replace the comet techniques like long polling. Jetty has supported the various websocket drafts in the 7.x and 8.x releases and Read more…
The Codemotion conference slides of my talk on Comet and WebSocket web applications are available here: slideshare, download.
In the CometD introduction post, I explained how the CometD project provides a solution for writing low-latency server-side event-driven web applications. Examples of this kind of applications are financial applications that provide stock quote price updates, or online games, or position tracking systems for fast moving objects (think a motorbike Read more…
A release candidate of Jetty 7.4 is now available as both Jetty@eclipse and Jetty-Hightide@codehaus distributions. This release contains a number of new features which I will briefly introduce now, and make the target of more detailed blogs, webinars and wiki pages over the next few weeks: Jetty Overlay Deployer Jetty Read more…
The CometD project provides tools to write server-side event-driven web applications. This kind of web application is becoming more popular, thanks to the fact that browsers have become truly powerful (JavaScript performance problems are now a relic of the past) and are widely deployed, so they are a very good Read more…
CometD 2.1.1 has been released. This is a minor bug fix release that updates the JavaScript toolkits to Dojo 1.6.0 and jQuery 1.5.1, and Jetty to 7.3.1 and 6.1.26. Enjoy !