Freelancer has released version 1.64 of xmlBlaster, an open source message-oriented middleware server written in Java for exchanging messages between publishers and subscribers.
XmlBlaster is a publish/subscribe and point to point 100% Java based MOM server (message-oriented middleware) which exchanges messages between publishers and subscribers. The message is described with XML-encoded meta information. Messages may contain everything, GIF images, Java objects, Python scripts, XML data, a word document, plain text - just anything.
Communication with the server is based on socket, CORBA (using JacORB), RMI, XmlRpc, HTTP or email, clients are free to choose their preferred protocol. Other protocols like SOAP may be plugged in.
Subscribers can use XPath expressions to filter the messages they wish to receive.
This is the publish/subscribe middleware server you have needed many times before, now available for free to glue together your distributed client/server application.
The xmlBlaster server is pure Java and under LGPL. PHP, Perl, Python, C, C++, C#, Visual Basic.net, Flash, J2ME, Java (applications, servlets, applets) client samples are delivered in the xmlBlaster distribution.