Revision 41ddb860 pithos/lib/hashfiler/blocker.py

b/pithos/lib/hashfiler/blocker.py
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#!/usr/bin/env python
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# Copyright 2011 GRNET S.A. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or
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# without modification, are permitted provided that the following
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# conditions are met:
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#
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#   1. Redistributions of source code must retain the above
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#      copyright notice, this list of conditions and the following
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#      disclaimer.
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#
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#   2. Redistributions in binary form must reproduce the above
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#      copyright notice, this list of conditions and the following
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#      disclaimer in the documentation and/or other materials
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#      provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# The views and conclusions contained in the software and
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# documentation are those of the authors and should not be
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# interpreted as representing official policies, either expressed
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# or implied, of GRNET S.A.
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from os import makedirs


  		





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from os.path import isdir, realpath, exists, join


  		





  ......




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            if not exists(blockpath):


  		





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                makedirs(blockpath)


  		





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            else:


  		





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                raise ValueError("blockpath '%s' is not a directory" % (blockpath,))


  		





  
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                raise ValueError("Variable blockpath '%s' is not a directory" % (blockpath,))


  		





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        hashtype = params['hashtype']


  		





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        try:


  		





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            hasher = newhasher(hashtype)


  		





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        except ValueError:


  		





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            msg = "hashtype '%s' is not available from hashlib"


  		





  
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            msg = "Variable hashtype '%s' is not available from hashlib"


  		





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            raise ValueError(msg % (hashtype,))


  		





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        hasher.update("")


  		












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