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From "Rishi Verma (JIRA)" <j...@apache.org>
Subject [jira] [Created] (OODT-456) New OFSN product handler to support generation of list of download URLs associated with an OFSN
Date Sat, 12 May 2012 00:29:47 GMT
Rishi Verma created OODT-456:

             Summary: New OFSN product handler to support generation of list of download URLs
associated with an OFSN
                 Key: OODT-456
                 URL: https://issues.apache.org/jira/browse/OODT-456
             Project: OODT
          Issue Type: New Feature
          Components: grid, product server
    Affects Versions: 0.3
            Reporter: Rishi Verma
            Priority: Minor
             Fix For: 0.4

OODT Grid, through the help of various OFSN product-handlers like StdOFSNGetHandler [1], enables
the download of products located on a particular host. Recursive product listing handlers
[2] furthermore, support the discovery of products located within a particular OFSN on the
product server. 

Users within the climate change community have described a need to quickly download (n) number
of products located under a particular OFSN without having to individually download each product.
To address this need, I propose developing a new OFSN product handler combining features of
[1] and [2] to specifically generate a list of URLs that can be used to download products
easily. Tools, like wget, can easily use a file containing a list of URLa to actually download
the products automatically.

To make this idea more generic, I will suggest that the return-type for URLs generated by
this handler, be configurable. Thus, it may be possible, for example, to get the MD5 checksum
for (n) number of products as easily as it would be to actually download the products themselves
using this new product-handler.

[1] http://svn.apache.org/repos/asf/oodt/trunk/product/src/main/java/org/apache/oodt/product/handlers/ofsn/StdOFSNGetHandler.java
[2] http://svn.apache.org/repos/asf/oodt/trunk/product/src/main/java/org/apache/oodt/product/handlers/ofsn/FileListRecursiveHandler.java

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