[DAIS-WG] OGSA-DAI 4.1 released
Mike Jackson
michaelj at epcc.ed.ac.uk
Tue Mar 1 08:07:07 CST 2011
Hi there,
The OGSA-DAI project have released version 4.1 of their database
access, integration and processing software.
OGSA-DAI is a customisable framework for the management of distributed
data resources - whether these be databases, files or other types of
data - via web services. OGSA-DAI provides a workflow engine for the
execution of data access, update, transformation, federation,
processing and delivery scenarios. It also provides a powerful
distributed query processor allowing SQL queries to be targeted across
distributed databases.
The main features of OGSA-DAI 4.1 are:
-Ability to convert and transfer relational data in a binary format
from an OGSA-DAI server to a client via a TupleToByteArrays
activity. This is a more efficient format than WebRowSet yet avoids
the information loss issues of comma-separated values. DQP now uses
this by default.
-The TupleToByteArrays activity allows relational data to be extracted
as a JDBC ResultSet client-side.
-Support for RDF resources which allows querying of Jena SDB databases
and SPARQL endpoints using SPARQL.
-Inclusion of a generic SQLStatement activity from OGSA-DAI WS-DAIR
which allows the running of SQL queries, updates, stored procedures
and functions.
-Support for modulo function in DQP.
-For OGSA-DAI Axis, use of HTTP Keep Alive by default in the client
toolkit providing improved efficiency of client-server interactions.
-Numerous bug fixes.
OGSA-DAI is a free, open source, 100% Java product and is released
under the Apache 2.0 licence. Releases can be downloaded from:
http://sourceforge.net/projects/ogsa-dai/files/
The user doc is at
http://sourceforge.net/apps/trac/ogsa-dai/wiki/UserDocumentation
and release notes at
http://ogsa-dai.sourceforge.net/documentation/ogsadai4.1/ogsadai4.1-axis/Release.html
http://ogsa-dai.sourceforge.net/documentation/ogsadai4.1/ogsadai4.1-gt42/Release.html
To find out more about OGSA-DAI visit our open source project site at
http://sourceforge.net/projects/ogsa-dai
Cheers,
mike
On behalf of the OGSA-DAI open source development team.
-------------------------------------------------------------------
Dr. Michael (Mike) Jackson E-mail: m.jackson at epcc.ed.ac.uk
EPCC http://www.epcc.ed.ac.uk
Software Sustainability Institute http://www.software.ac.uk
OGSA-DAI Open Source Project http://tinyurl.com/ogsa-dai
OGSA-DAI http://www.ogsadai.org.uk
The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.
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