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annotate service/reasoning/graphop.py @ 179:0f2ac014d9ea
reasoning: -v verbose setting, more oneshot support, some custom stuff for mpd commands
Ignore-this: 7646fba7b5496eb1f33a87452af6c6de
| author | drewp@bigasterisk.com |
|---|---|
| date | Thu, 14 May 2015 01:30:00 -0700 |
| parents | 7179284779fd |
| children | f3f667769aef |
| rev | line source |
|---|---|
| 49 | 1 import logging |
| 2 from rdflib import URIRef, ConjunctiveGraph | |
| 3 log = logging.getLogger() | |
| 48 | 4 |
| 5 def graphWithoutMetadata(g, ignorePredicates=[]): | |
| 6 """ | |
| 7 graph filter that removes any statements whose subjects are | |
| 8 contexts in the graph and also any statements with the given | |
| 9 predicates | |
| 10 """ | |
|
179
0f2ac014d9ea
reasoning: -v verbose setting, more oneshot support, some custom stuff for mpd commands
drewp@bigasterisk.com
parents:
118
diff
changeset
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11 |
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0f2ac014d9ea
reasoning: -v verbose setting, more oneshot support, some custom stuff for mpd commands
drewp@bigasterisk.com
parents:
118
diff
changeset
|
12 ctxs = [ctx.identifier for ctx in g.contexts()] |
| 48 | 13 |
| 14 out = ConjunctiveGraph() | |
| 15 for stmt in g.quads((None, None, None)): | |
| 16 if stmt[0] not in ctxs and stmt[1] not in ignorePredicates: | |
| 17 out.addN([stmt]) | |
| 18 return out | |
| 19 | |
| 20 def graphEqual(a, b, ignorePredicates=[]): | |
| 21 """ | |
| 22 compare graphs, omitting any metadata statements about contexts | |
| 23 (especially modification times) and also any statements using the | |
| 24 given predicates | |
| 25 """ | |
| 26 stmtsA = set(graphWithoutMetadata(a, ignorePredicates)) | |
| 27 stmtsB = set(graphWithoutMetadata(b, ignorePredicates)) | |
| 28 if stmtsA == stmtsB: | |
| 29 return True | |
| 30 | |
| 31 if log.getEffectiveLevel() <= logging.INFO: | |
| 32 lost = stmtsA - stmtsB | |
| 33 if lost: | |
| 118 | 34 log.info("graph A only:") |
| 48 | 35 for s in lost: |
| 36 log.info(" %s", s) | |
| 37 new = stmtsB - stmtsA | |
| 38 if new: | |
| 118 | 39 log.info("graph B only:") |
| 48 | 40 for s in new: |
| 41 log.info(" %s", s) | |
| 42 return False |