NAME
xDash - Framework for publish/subscribe integration of applications
DESCRIPTION
xDash is a framework for publish/subscribe integration of applications (EAI). xDash is using Jabber as communication protocol and implementing the concept of convergence between backend asynchronous messaging and instant messaging.
Survival strategy of the xDash integration architecture:
- The show must go on!
-
The foremost aim of the integration project is to provide reliable communication between applications, close to the real time from the integrated applications point of view. The data, which should be published to other applications, has to be processed as soon as possible, even at the cost of processing the same data again. This means, that the working strategy of xDash must be fault tolerant, also to the internal problems.
- Lazy evaluation
-
xDash assumes that in 99% cases everything goes well and does things only when really needed. Processing information like data extraction and transformation is done where the information is used.
- Storing only as much information as needed
-
Only as much information should be kept persistent as it is needed to reconstruct and relaunch an action in case something went wrong.
xDash frameworks consists of three main modules: xDash::Sender, xDash::Receiver, xDash::Archivist and some other supporting modules. Modules are developed in the object orientated way. If you need to customize/extend functionality of the tree main modules, you have to provide your own base classes/modules for some tasks, which have to implement a fixed set of methods (driver pattern). If you think, they can be reused, make them public over CPAN in the xDash namespace!
For detailed conceptual description, how xDash framework works, please refer to http://xdash.jabberstudio.org.
For hints, how to implement integration scripts based on xDash framework, please refer to xDash::Sender, xDash::Receiver and xDash::Archivist.
For xDash deployment use tools from the directory deployment. Read the deployment/README.txt or usage information embedded into scripts! You can find an introduction to the deployment: Planning and deploying xDash in a sandbox at http://xdash.jabberstudio.org/deployment/perl
For xDash administration use tools from the directory admin. Read the admin/README.txt or usage information embedded into scripts!
BUGS
Any suggestions for improvement are welcomed!
If a bug is detected or nonconforming behavior, please send an error report to <jwach@cpan.org>. Please attache log entries, if possible.
COPYRIGHT
Copyright 2005 Jerzy Wachowiak <jwach@cpan.org>
This library is free software; you can redistribute it and/or modify it under the terms of the Apache 2.0 license attached to the module.