FileDataSource throws a FileNotFoundException when reading from named pipes
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                 Key: SOLR-3147
                 URL: https://issues.apache.org/jira/browse/SOLR-3147
             Project: Solr
          Issue Type: Bug
          Components: contrib - DataImportHandler
    Affects Versions: 3.5
         Environment: Unix
            Reporter: Paddy Mullen
            Priority: Minor


DataImportHandler fails on a FileNotFoundException when FileDataSource tries to 
read from a named pipe.  This is because FileDataSource:105 in getFile calls 
isFile().  Since named pipes aren't true files this fails.  When this check is 
removed, the import is able to proceed normally.  

I want to use a named pipe so I can keep the file compressed on disk and use 
gunzip -c to uncompress the file to the named pipe.  Another way of fixing this 
would be to natively decompress inside of FileDataSource, it's not clear if 
this bug https://issues.apache.org/jira/browse/SOLR-1406 fixes the issue.  

What would the preferred patch do?  Should it read a forceFile attribute from 
initProps?

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