Telefónica I+D has added GIOP compression support into TIDorbJ product, a CORBA 2.6 compliance ORB developed in Java by Telefónica I+D and released in Morfeo Open Source community.

Basically ZIOP protocol defines through policies (in a similar way to CORBA QoS messaging) the compressor kind, the threshold to apply compression and the minimum ratios to be obtained to perform the communication with compressed messages. If there is matching between policies at client and server sides, compression could be applied over each GIOP message.

TIDorbJ ZIOP implementation, available at Morfeo Forge, covers all issues defined in the latest GIOP Compression proposal and provides a default compressor based on Zlib library implemented by java.util.zip package, which is available in all commons JVMs. Some useful examples about how use compression and how works with ZIOP policies are also available at Morfeo TIDorbJ SVN respitory.

The last year Telefónica I+D, Remedy IT, and IONA have started to work together on adding compression to the CORBA specification. This effort is known as ZIOP.

TID has implemented a first prototype based on the proposal from http://www.omg.org/cgi-bin/apps/doc?mars/08-08-03.pdf in TIDorbC++ product. In the future we are planning to implement it also in TIDorbJava product when ZIOP will be adopted as standard by the OMG.

We want to ask you as user if you have any comment or experience that could be useful to improve the current proposal. If you have something, please send your comments directly to Juan A. Cáceres <caceres at tid dot es> or to Alvaro Vega Garcia < avega at tid dot es>.

With your collaboration we can elaborate a better proposal which could be finallyadded to the CORBA specification.