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1 # -*- coding: utf-8 -*-
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2
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3 from galaxy.datatypes.data import Text
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4 from galaxy.datatypes.data import get_file_peek
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5 import json
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6 import os
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7
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8 class Json( Text ):
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9 file_ext = "json"
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10
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11 def set_peek( self, dataset, is_multi_byte=False ):
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12 if not dataset.dataset.purged:
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13 dataset.peek = get_file_peek( dataset.file_name, is_multi_byte=is_multi_byte )
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14 dataset.blurb = "JavaScript Object Notation (JSON)"
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15 else:
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16 dataset.peek = 'file does not exist'
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17 dataset.blurb = 'file purged from disc'
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18
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19 def sniff( self, filename ):
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20 """
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21 Try to load the string with the json module. If successful it's a json file.
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22 """
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23 try:
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24 json.load( open(filename) )
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25 return True
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26 except:
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27 return True
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28
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29 def set_meta( self, dataset, **kwd ):
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30 """
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31
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32 Set the number of models in dataset.
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33 """
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34 pass
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35
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36
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