[jira] [Created] (OODT-651) Improve parameter initialization, validation and logging for the CAS-Product JAXRS service

["Ross Laidlaw (JIRA)" <ji...@apache.org>]

Ross Laidlaw created OODT-651:
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             Summary: Improve parameter initialization, validation and logging for the CAS-Product JAXRS service
                 Key: OODT-651
                 URL: https://issues.apache.org/jira/browse/OODT-651
             Project: OODT
          Issue Type: Improvement
          Components: product server
    Affects Versions: 0.7
            Reporter: Ross Laidlaw
            Assignee: Ross Laidlaw
            Priority: Minor
             Fix For: 0.7


My mentor Rishi Verma noted on OODT-649 that several components used by the new CAS-Product JAX-RS service, such as the file manager client and working directory, are being initialized in the resource classes for every HTTP request.  This is inefficient and causes unnecessary overheads, since these parameters (e.g. file manager URL and working directory location) are assumed to be constant while the web application is running (i.e. if they do change, the web application can be restarted to pick up the changes) and separate file manager client instances aren't required for each request.

Instead it would be better to initialize certain parameters only once when the web application is started up and share them between the resource classes.

Rishi also suggested that additional validation and logging would make the application more robust and would help developers and users when configuring the web application.

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