Rishi Verma created OODT-456:
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             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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