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OGSA-DAI Today Release 2.2

OGSA-DAI Today Release 2.2. Principles and Architectures for Structured Data Integration: OGSA-DAI as an example ISSGC06 (Ischia, Italy) 17 July 2006. What’s in a name?. Release 2.2 (April 28 th 2006) OGSA-DAI WSI 2.2 Runs under Apache Axis 1.2.1 on Tomcat

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OGSA-DAI Today Release 2.2

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  1. OGSA-DAI Today Release 2.2 Principles and Architectures for Structured Data Integration: OGSA-DAI as an example ISSGC06 (Ischia, Italy) 17 July 2006

  2. What’s in a name? • Release 2.2 (April 28th 2006) • OGSA-DAI WSI 2.2 • Runs under Apache Axis 1.2.1 on Tomcat • Runs under Axis 1.2RC3 on Tomcat • Runs under OMII 2.3.3 • OGSA-DAI WSRF 2.2 • Runs under Globus Toolkit 4.0.1 and 4.0.2 • Available now at http://www.ogsadai.org.uk http://www.ogsadai.org.uk/

  3. Resource management • Transient data service resources • Exist only in memory • No associated configuration files on the server • Associated activity to create new transient resources • Resource withdrawal • An activity to withdraw a data service resource • Optionally remove its configuration files from the server http://www.ogsadai.org.uk/

  4. Relational multi-resources • A data service resource that aggregates multiple relational data service resources • Aggregated resources can be local or remote • Associated activities • Submit a query to every aggregated resource and return a bag of the results • Submit a query to every aggregated resource and return the results from the first one that completes • Remove duplicate rows from a bag of the results http://www.ogsadai.org.uk/

  5. Activities… • Data conversion activities • ConvertResultSet to WebRowSet • ConvertResultSet to CSV • Convert BLOB from ResultSet column into bytes • Relational meta-data activities • Retrieve logical database schema • Convert logical database schema to XML • Retrieve physical database schema • XMLDB activities • XQuery http://www.ogsadai.org.uk/

  6. …and some more • Projection and transformation activities • Remove duplicate rows from a WebRowSet • Project a ResultSet onto a column name or index • Project a WebRowSet onto a column name or index • Project CSV values onto a column index • Distribute numeric values onto spaces • Generate a random sample of input data • Write a stream of bytes to a temporary file and output a reference to this file • Delivery activities • Throw data away • Write data to a resource property • Deliverdata to a SOAP attachment http://www.ogsadai.org.uk/

  7. Then there’s… • eXist data resources and XQuery • BLOBs • Improved support for BLOBs in SQL query and update activities • Activity to dump BLOBs into temporary files server-side • Security • Authorization • Resource level • Activity level • GSI Secure Conversation message-level security for inter-service communications using data transport • OGSA-DAI WSRF only • Logging and exceptions • Revamped logging, exceptions and internationalization http://www.ogsadai.org.uk/

  8. …and… • JARs • Third party JARs are now bundled with OGSA-DAI • OGSA-DAI WSI • JARs required to compile OGSA-DAI source distribution • JARs required to run OGSA-DAI clients • OGSA-DAI WSRF • Non-Globus Toolkit JARs required to compile OGSA-DAI source distribution • JARs required to run OGSA-DAI clients • Usage • Publication of an initial set of usage scenarios and best practice • Benchmarking and performance: • Numerous performance enhancements • Publication of summary of work http://www.ogsadai.org.uk/

  9. Future Features • Multi-Resource Perform Documents • New Activity Framework • New interfaces • Simplify activity development • Add hooks for monitoring, authorisation, … • More out-of-the-box activities • New Pipe Model • Improved concurrent processing • New streaming model • Extended support for BLOB and binary data extraction • Persistency support through a configuration database • Dynamic Service Configuration and Management http://www.ogsadai.org.uk/

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