annotate service/reasoning/inference.py @ 281:9728288c7f2f

refactor Ignore-this: 61a7c93a71fba5feea956ef99c84a30e
author drewp@bigasterisk.com
date Fri, 06 May 2016 17:34:26 -0700
parents 5ad229334a88
children 95f72a22965d
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1 """
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2 see ./reasoning for usage
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3 """
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4
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5 import sys
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6 try:
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7 from rdflib.Graph import Graph
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8 except ImportError:
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9 from rdflib import Graph
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11 sys.path.append("/my/proj/room/fuxi/build/lib.linux-x86_64-2.6")
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12 from FuXi.Rete.Util import generateTokenSet
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13 from FuXi.Rete import ReteNetwork
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14 from rdflib import plugin
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15 from rdflib.store import Store
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17 def infer(graph, rules):
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18 """
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19 returns new graph of inferred statements
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20 """
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21 # based on fuxi/tools/rdfpipe.py
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22 store = plugin.get('IOMemory',Store)()
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23 store.open('')
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25 target = Graph()
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26 tokenSet = generateTokenSet(graph)
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27 network = ReteNetwork(rules, inferredTarget=target)
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28 network.feedFactsToAdd(tokenSet)
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30 store.rollback()
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31 return target
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33 import time, logging
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34 log = logging.getLogger()
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35 def logTime(func):
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36 def inner(*args, **kw):
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37 t1 = time.time()
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38 try:
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39 ret = func(*args, **kw)
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40 finally:
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41 log.info("Call to %s took %.1f ms" % (
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42 func.__name__, 1000 * (time.time() - t1)))
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43 return ret
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44 return inner