Mercurial > repos > matt-shirley > sra_fetch
diff sra.py @ 9:cf0980cfd040 draft default tip
Deleted selected files
author | matt-shirley |
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date | Tue, 27 Nov 2012 13:38:35 -0500 |
parents | 61d634d123c0 |
children |
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--- a/sra.py Sun Nov 18 17:12:24 2012 -0500 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,46 +0,0 @@ -""" -Sra class -""" - -import galaxy.datatypes.binary -from galaxy.datatypes.binary import Binary -import data, logging, binascii -from galaxy.datatypes.metadata import MetadataElement -from galaxy.datatypes import metadata -from galaxy.datatypes.sniff import * -from galaxy import eggs -import pkg_resources -pkg_resources.require( "bx-python" ) -import os, subprocess, tempfile -import struct - -class Sra( Binary ): - """ Sequence Read Archive (SRA) """ - file_ext = "sra" - - def __init__( self, **kwd ): - Binary.__init__( self, **kwd ) - def sniff( self, filename ): - # The first 8 bytes of any NCBI sra file is 'NCIB.sra', and the file is binary. EBI and DDBJ files may differ. For details - # about the format, see http://www.ncbi.nlm.nih.gov/books/n/helpsra/SRA_Overview_BK/#SRA_Overview_BK.4_SRA_Data_Structure - try: - header = open( filename ).read(8) - if binascii.b2a_hex( header ) == binascii.hexlify( 'NCBI.sra' ): - return True - return False - except: - return False - def set_peek( self, dataset, is_multi_byte=False ): - if not dataset.dataset.purged: - dataset.peek = "Binary sra file" - dataset.blurb = data.nice_size( dataset.get_size() ) - else: - dataset.peek = 'file does not exist' - dataset.blurb = 'file purged from disk' - def display_peek( self, dataset ): - try: - return dataset.peek - except: - return "Binary sra file (%s)" % ( data.nice_size( dataset.get_size() ) ) - -Binary.register_sniffable_binary_format("sra", "sra", Sra)