This article will describe our experiences with developing a Java-based
instant messenger application using Jabber/XMPP (Extensible Messaging and
Presence Protocol) - a free, open and public protocol and technology for
instant messaging. According to the Jabber Software Foundation, "Under the
hood, Jabber is a set of streaming XML protocols and technologies that enable
any two entities on the Internet to exchange messages, presence, and other
structured information in close to real-time."
Google Talk uses the standard Jabber/XMPP protocol for authenticating,
presence, and messaging. But using Jabber goes beyond instant messaging to
almost real-time server-to-server communication.
This article will describe the Jabber/XMPP protocol for messaging, the
Jabber/XMPP client p... (more)
This article describes our experiences with developing a browser-based Web
conferencing application with the following constraints: HTTP protocol (port
80) to broadcast and receive video/audio Broadcasters and receivers are not
required to have public IP addresses Multiple users, each capable of
broadcasting to and receiving feeds from many users Low-cost solution for
continuous video/au... (more)
A Web portal is an application that aggregates multiple Web applications on a
single Web page. Popular examples of portals are My Yahoo (my.yahoo.com) and
My MSN (my.msn.com). These portals allow users to aggregate multiple Web
applications (like Stock Quote, News, and Weather). In addition these portals
allow users to personalize and customize the presentation and content of the
individ... (more)
In this article we'll discuss the conversion of image formats using Sun's
Java Image I/O (ImageIO) and the NIH ImageJ APIs. The image formats of
interest are DICOM, JPEG 2000, PNG, and TIFF. These formats are widely used
in medical applications; however, most of the disciplines in medicine are
standardizing on DICOM. A single API, ImageIO or ImageJ, supports the reading
and writing of li... (more)
A Model-View-Controller based Plug-able Declarative Framework (MVC-PDF) will
be described, in which developers use the full power of ColdFusion MX (CFMX)
components to create MVC applications. The declarative nature of the
framework will allow the controller and the model to be specified
declaratively in configuration files, versus custom coded in ColdFusion.
A MVC-PDF will allow develope... (more)