| author | sylvain.thenault@logilab.fr |
| Wed, 29 Apr 2009 10:29:03 +0200 | |
| branch | tls-sprint |
| changeset 1533 | bcd4bfff658b |
| parent 1528 | 864ae7c15ef5 |
| child 1548 | bd225e776739 |
| permissions | -rw-r--r-- |
| 1152 | 1 |
"""relation tags store |
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:organization: Logilab |
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:copyright: 2001-2009 LOGILAB S.A. (Paris, FRANCE), all rights reserved. |
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr |
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""" |
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__docformat__ = "restructuredtext en" |
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1148
55a8238f8f7c
keep notion of relation tags, tough with simplier implementation and usage
sylvain.thenault@logilab.fr
parents:
diff
changeset
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1148
55a8238f8f7c
keep notion of relation tags, tough with simplier implementation and usage
sylvain.thenault@logilab.fr
parents:
diff
changeset
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class RelationTags(object): |
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"""a tag store for full relation definitions : |
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1148
55a8238f8f7c
keep notion of relation tags, tough with simplier implementation and usage
sylvain.thenault@logilab.fr
parents:
diff
changeset
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(subject type, relation type, object type, tagged) |
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allowing to set tags using wildcard (eg '*') as subject type / object type |
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This class associates a single tag to each key. |
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""" |
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def __init__(self): |
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keep notion of relation tags, tough with simplier implementation and usage
sylvain.thenault@logilab.fr
parents:
diff
changeset
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self._tagdefs = {} |
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other fixlets
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
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diff
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def __repr__(self): |
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864ae7c15ef5
other fixlets
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
1451
diff
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return repr(self._tagdefs) |
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864ae7c15ef5
other fixlets
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
1451
diff
changeset
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# dict compat |
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def __getitem__(self, key): |
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return self.get(*key) |
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__contains__ = __getitem__ |
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def _get_keys(self, rtype, tagged, stype, otype): |
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assert tagged in ('subject', 'object'), tagged |
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keys = [(rtype, tagged, '*', '*'), |
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(rtype, tagged, '*', otype), |
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(rtype, tagged, stype, '*'), |
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(rtype, tagged, stype, otype)] |
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if stype == '*' or otype == '*': |
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keys.remove((rtype, tagged, '*', '*')) |
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if stype == '*': |
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keys.remove((rtype, tagged, '*', otype)) |
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if otype == '*': |
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keys.remove((rtype, tagged, stype, '*')) |
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return keys |
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def tag_relation(self, tag, relation, tagged): |
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assert tagged in ('subject', 'object'), tagged |
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stype, rtype, otype = relation |
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self._tagdefs[(str(rtype), tagged, str(stype), str(otype))] = tag |
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def del_rtag(self, relation, tagged): |
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assert tagged in ('subject', 'object'), tagged |
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stype, rtype, otype = relation |
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del self._tagdefs[(str(rtype), tagged, str(stype), str(otype))] |
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def get(self, rtype, tagged, stype='*', otype='*'): |
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for key in reversed(self._get_keys(rtype, tagged, stype, otype)): |
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1148
55a8238f8f7c
keep notion of relation tags, tough with simplier implementation and usage
sylvain.thenault@logilab.fr
parents:
diff
changeset
|
57 |
try: |
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55a8238f8f7c
keep notion of relation tags, tough with simplier implementation and usage
sylvain.thenault@logilab.fr
parents:
diff
changeset
|
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return self._tagdefs[key] |
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55a8238f8f7c
keep notion of relation tags, tough with simplier implementation and usage
sylvain.thenault@logilab.fr
parents:
diff
changeset
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except KeyError: |
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55a8238f8f7c
keep notion of relation tags, tough with simplier implementation and usage
sylvain.thenault@logilab.fr
parents:
diff
changeset
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continue |
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55a8238f8f7c
keep notion of relation tags, tough with simplier implementation and usage
sylvain.thenault@logilab.fr
parents:
diff
changeset
|
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return None |
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def etype_get(self, etype, rtype, tagged, ttype='*'): |
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if tagged == 'subject': |
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return self.get(rtype, tagged, etype, ttype) |
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return self.get(rtype, tagged, ttype, etype) |
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class RelationTagsSet(RelationTags): |
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"""This class associates a set of tags to each key.""" |
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def tag_relation(self, tag, relation, tagged): |
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assert tagged in ('subject', 'object'), tagged |
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stype, rtype, otype = relation |
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rtags = self._tagdefs.setdefault((rtype, tagged, stype, otype), set()) |
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1148
55a8238f8f7c
keep notion of relation tags, tough with simplier implementation and usage
sylvain.thenault@logilab.fr
parents:
diff
changeset
|
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rtags.add(tag) |
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def get(self, rtype, tagged, stype='*', otype='*'): |
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1148
55a8238f8f7c
keep notion of relation tags, tough with simplier implementation and usage
sylvain.thenault@logilab.fr
parents:
diff
changeset
|
80 |
rtags = set() |
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for key in self._get_keys(rtype, tagged, stype, otype): |
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1148
55a8238f8f7c
keep notion of relation tags, tough with simplier implementation and usage
sylvain.thenault@logilab.fr
parents:
diff
changeset
|
82 |
try: |
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55a8238f8f7c
keep notion of relation tags, tough with simplier implementation and usage
sylvain.thenault@logilab.fr
parents:
diff
changeset
|
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rtags.update(self._tagdefs[key]) |
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55a8238f8f7c
keep notion of relation tags, tough with simplier implementation and usage
sylvain.thenault@logilab.fr
parents:
diff
changeset
|
84 |
except KeyError: |
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55a8238f8f7c
keep notion of relation tags, tough with simplier implementation and usage
sylvain.thenault@logilab.fr
parents:
diff
changeset
|
85 |
continue |
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55a8238f8f7c
keep notion of relation tags, tough with simplier implementation and usage
sylvain.thenault@logilab.fr
parents:
diff
changeset
|
86 |
return rtags |