DART2 is a ground up re-write of the DART server. Some very different design critera are being used for DART2, some of which are described in this document. DART2 is currently being designed and implemented as part of NAMIC's Core 2 Engineering activities. A progress report was given at the 2006 NAMIC All Hands Meeting in Salt Lake City.
Documentation, Resources & Plans
Currently, Dart is being used for the Slicer3 dashboard. Over the upcoming months, Dart will be adapted and "hardened" for the enterprise environment. This mainly consists of using MySQL rather than Derby. MySQL is highly scalable with mature management tools, mitigating a point of failure for Dart (though Derby performs wonderfully for most applications).
Release 1.0.7 (June 20, 2006)
For JDK 1.4
This release fixes several resource exhaustion bugs, and includes an (untested) HTTP PUT method for submission. Please download and update any existing Dart servers.
svn co http://svn.na-mic.org/svn/Dart/trunk Dart
The current plan is that DART2 will be written in the single language Java. Besides its simplicity and portability, Java provides many different packages dedicated to particular programming tasks. Some of the packages used in DART2 are described here including accompaning descriptions and licenses.
|Enterprise scheduler, has features similar to cron||BSD-like|
|XMLRPC implementation, integrates with servlet engines||Apache|
|Part of the Apache Jakarta Commons project. Converts XML to Java objects||Apache|
|Command line processing||Apache|
|Template engine, provides HTML generation from Java objects||BSD-like|
|Object-Relational bridge. Generates objects that are dynamically mapped to RDBMS||BSD|
|Very flexible logging system||Apache|
|Embedded RDBMS donated to Apache by IBM. Formely known as Cloudscape||Apache|
|Excellent unit testing framework. All Dart2 Server tests use JUnit||Common Public License|
|DB Connection pooling library, helps manage server resources.||Apache|
|Manipulate files in the file system, JAR files, FTP, etc... uniformly and transparently.||Apache|
|An embeddable servlet and web server engine||Apache|
|Where would we be without Ant? Ant is a Java version of Make.||Apache|
|Charting tools accessible via a servlet||GNU Lesser General Public License|