GRIA Workflow Plugins

Welcome to GRIA Workflow Plugins, version 2.1.0. Included in this release are plugins for the Taverna & Freefluo workflow tools. These enable composition and execution of workflows containing GRIA 5.2 job and data transfer operations.

The plugins are made available according to the terms and conditions of the accompanying license agreement. Please refer to the IPR Registry for licences and information relating to other libraries bundled in the distribution.

Please refer to the main documentation for installation instructions, tutorials, reference information and support details.

Please also refer to the list of known issues for information on common problems.

Change log

Version 2.1.0

Updated to support GRIA 5.2 Job and Data Services. This release has been tested against FREE GRIA 5.2 and 5.1 services, but has not yet been fully tested using SLAs.

Version 2.0.1

Documentation fixes only.

Version 2.0.0

This is a major rewrite to support GRIA 5 business processes and application services. The plugins have also been upgraded to work with the latest Taverna 1.4 release.

Support has been added for using the Service Level Agreement (SLA) functionality of GRIA 5. Before composing workflows that use GRIA 5 services, flexible and long-lived SLAs can be established using the GRIA client. SLAs can be selected easily when composing a GRIA 5 workflow in Taverna. This means that GRIA 5 workflows are easier to author and more robust at runtime than GRIA 4 workflows (that required more rigid resource allocations to be created).

Use of the client management infrastructure of GRIA 5 is also supported. GRIA 5 workflows can refer to project accounts instead of explicitly referencing SLAs. Project account administration allows project managers in your organisation fine-grained control over the services and resources that users can access. Further details of these advanced GRIA 5 features are available in the GRIA 5 user guide.

A summary of the major changes since the previous release is provided below.

• Support for GRIA 5, including using free services, service level agreements, and integration with client management infrastructure.
• Upgraded to Taverna 1.4

Version 1.1.0

Details of new features and bug fixes.

• Upgraded to GRIA 4.3.0.
• UploadFromString and DownloadToString processors added for more convenient file transfer of small amounts of data.
• WKF-29. Resource allocations obtained by GRIA Upload processors now can be reused by GRIA Job processors.
• WKF-31. Freefluo processor polling is configurable. job-polling.properties is used to configure polling for GRIA job and Freefluo processors.
• WKF-33. Local nested workflows fixed.
• WKF-34. Non-zero application wrapper exit code indicates application failure and now correctly causes the processor to fail.
• WKF-37. Settings for polling GRIA Jobs improved. A maximum polling interval can be specified.

Version 1.0.0

Maintenance release with bug fixes and support for Taverna version 1.2. Also, upgraded to latest GRIA client v4.3.0 RC1 libraries so that data storage/query using the GRIA OGSA-DAI service is possible from custom Taverna plugins.

Version 0.2

Released to support (1) recursively composing workflows from other (remotely hosted) workflows; and (2) composing workflows that may be deployed and hosted at Freefluo services.

• Freefluo processor added for running remote workflows.
• Authorisation checks added for input data stagers when a workfow is running in a Freefluo service. This to support additional security constraints that are required when running a workflow in a Freefluo service.
• Authorisation options added to GRIA Upload and GRIA Job processors. When composing a workflow that will be deployed to a Freefluo service, the author can select which data stagers a workflow client is permitted to read.

Version 0.1

Initial release.

• Plugins for composing and executing workflows that contain GRIA jobs and upload and download data operations