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comparison roundup/hyperdb.py @ 844:982a5abb01ea maint-0.4

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[SF#571170] gdbm deadlock
author Richard Jones <richard@users.sourceforge.net>
date Wed, 10 Jul 2002 06:30:47 +0000
parents 4409798dfa15
children b3db3c26d7ad
comparison
equal deleted inserted replaced
816:f75aa15caa7d 844:982a5abb01ea
13 # BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 13 # BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
14 # FOR A PARTICULAR PURPOSE. THE CODE PROVIDED HEREUNDER IS ON AN "AS IS" 14 # FOR A PARTICULAR PURPOSE. THE CODE PROVIDED HEREUNDER IS ON AN "AS IS"
15 # BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE, 15 # BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
16 # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. 16 # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
17 # 17 #
18 # $Id: hyperdb.py,v 1.69 2002-06-17 23:15:29 richard Exp $ 18 # $Id: hyperdb.py,v 1.69.2.1 2002-07-10 06:30:47 richard Exp $
19 19
20 __doc__ = """ 20 __doc__ = """
21 Hyperdatabase implementation, especially field types. 21 Hyperdatabase implementation, especially field types.
22 """ 22 """
23 23
767 'keyvalue' matches one of the values for the key property among 767 'keyvalue' matches one of the values for the key property among
768 the nodes in this class, the matching node's id is returned; 768 the nodes in this class, the matching node's id is returned;
769 otherwise a KeyError is raised. 769 otherwise a KeyError is raised.
770 """ 770 """
771 cldb = self.db.getclassdb(self.classname) 771 cldb = self.db.getclassdb(self.classname)
772 for nodeid in self.db.getnodeids(self.classname, cldb): 772 try:
773 node = self.db.getnode(self.classname, nodeid, cldb) 773 for nodeid in self.db.getnodeids(self.classname, cldb):
774 if node.has_key(self.db.RETIRED_FLAG): 774 node = self.db.getnode(self.classname, nodeid, cldb)
775 continue 775 if node.has_key(self.db.RETIRED_FLAG):
776 if node[self.key] == keyvalue: 776 continue
777 return nodeid 777 if node[self.key] == keyvalue:
778 return nodeid
779 finally:
780 cldb.close()
778 raise KeyError, keyvalue 781 raise KeyError, keyvalue
779 782
780 # XXX: change from spec - allows multiple props to match 783 # XXX: change from spec - allows multiple props to match
781 def find(self, **propspec): 784 def find(self, **propspec):
782 """Get the ids of nodes in this class which link to a given node. 785 """Get the ids of nodes in this class which link to a given node.
799 raise ValueError, '%s has no node %s'%(prop.classname, nodeid) 802 raise ValueError, '%s has no node %s'%(prop.classname, nodeid)
800 803
801 # ok, now do the find 804 # ok, now do the find
802 cldb = self.db.getclassdb(self.classname) 805 cldb = self.db.getclassdb(self.classname)
803 l = [] 806 l = []
804 for id in self.db.getnodeids(self.classname, db=cldb): 807 try:
805 node = self.db.getnode(self.classname, id, db=cldb) 808 for id in self.db.getnodeids(self.classname, db=cldb):
806 if node.has_key(self.db.RETIRED_FLAG): 809 node = self.db.getnode(self.classname, id, db=cldb)
807 continue 810 if node.has_key(self.db.RETIRED_FLAG):
808 for propname, nodeid in propspec:
809 # can't test if the node doesn't have this property
810 if not node.has_key(propname):
811 continue 811 continue
812 prop = self.properties[propname] 812 for propname, nodeid in propspec:
813 property = node[propname] 813 # can't test if the node doesn't have this property
814 if isinstance(prop, Link) and nodeid == property: 814 if not node.has_key(propname):
815 l.append(id) 815 continue
816 elif isinstance(prop, Multilink) and nodeid in property: 816 prop = self.properties[propname]
817 l.append(id) 817 property = node[propname]
818 if isinstance(prop, Link) and nodeid == property:
819 l.append(id)
820 elif isinstance(prop, Multilink) and nodeid in property:
821 l.append(id)
822 finally:
823 cldb.close()
818 return l 824 return l
819 825
820 def stringFind(self, **requirements): 826 def stringFind(self, **requirements):
821 """Locate a particular node by matching a set of its String 827 """Locate a particular node by matching a set of its String
822 properties in a caseless search. 828 properties in a caseless search.
830 if isinstance(not prop, String): 836 if isinstance(not prop, String):
831 raise TypeError, "'%s' not a String property"%propname 837 raise TypeError, "'%s' not a String property"%propname
832 requirements[propname] = requirements[propname].lower() 838 requirements[propname] = requirements[propname].lower()
833 l = [] 839 l = []
834 cldb = self.db.getclassdb(self.classname) 840 cldb = self.db.getclassdb(self.classname)
835 for nodeid in self.db.getnodeids(self.classname, cldb): 841 try:
836 node = self.db.getnode(self.classname, nodeid, cldb) 842 for nodeid in self.db.getnodeids(self.classname, cldb):
837 if node.has_key(self.db.RETIRED_FLAG): 843 node = self.db.getnode(self.classname, nodeid, cldb)
838 continue 844 if node.has_key(self.db.RETIRED_FLAG):
839 for key, value in requirements.items(): 845 continue
840 if node[key] and node[key].lower() != value: 846 for key, value in requirements.items():
841 break 847 if node[key] and node[key].lower() != value:
842 else: 848 break
843 l.append(nodeid) 849 else:
850 l.append(nodeid)
851 finally:
852 cldb.close()
844 return l 853 return l
845 854
846 def list(self): 855 def list(self):
847 """Return a list of the ids of the active nodes in this class.""" 856 """Return a list of the ids of the active nodes in this class."""
848 l = [] 857 l = []
849 cn = self.classname 858 cn = self.classname
850 cldb = self.db.getclassdb(cn) 859 cldb = self.db.getclassdb(cn)
851 for nodeid in self.db.getnodeids(cn, cldb): 860 try:
852 node = self.db.getnode(cn, nodeid, cldb) 861 for nodeid in self.db.getnodeids(cn, cldb):
853 if node.has_key(self.db.RETIRED_FLAG): 862 node = self.db.getnode(cn, nodeid, cldb)
854 continue 863 if node.has_key(self.db.RETIRED_FLAG):
855 l.append(nodeid) 864 continue
865 l.append(nodeid)
866 finally:
867 cldb.close()
856 l.sort() 868 l.sort()
857 return l 869 return l
858 870
859 # XXX not in spec 871 # XXX not in spec
860 def filter(self, search_matches, filterspec, sort, group, 872 def filter(self, search_matches, filterspec, sort, group,
913 filterspec = l 925 filterspec = l
914 926
915 # now, find all the nodes that are active and pass filtering 927 # now, find all the nodes that are active and pass filtering
916 l = [] 928 l = []
917 cldb = self.db.getclassdb(cn) 929 cldb = self.db.getclassdb(cn)
918 for nodeid in self.db.getnodeids(cn, cldb): 930 try:
919 node = self.db.getnode(cn, nodeid, cldb) 931 for nodeid in self.db.getnodeids(cn, cldb):
920 if node.has_key(self.db.RETIRED_FLAG): 932 node = self.db.getnode(cn, nodeid, cldb)
921 continue 933 if node.has_key(self.db.RETIRED_FLAG):
922 # apply filter 934 continue
923 for t, k, v in filterspec: 935 # apply filter
924 # this node doesn't have this property, so reject it 936 for t, k, v in filterspec:
925 if not node.has_key(k): break 937 # this node doesn't have this property, so reject it
926 938 if not node.has_key(k): break
927 if t == 0 and node[k] not in v: 939
928 # link - if this node'd property doesn't appear in the 940 if t == 0 and node[k] not in v:
929 # filterspec's nodeid list, skip it 941 # link - if this node'd property doesn't appear in the
930 break 942 # filterspec's nodeid list, skip it
931 elif t == 1: 943 break
932 # multilink - if any of the nodeids required by the 944 elif t == 1:
933 # filterspec aren't in this node's property, then skip 945 # multilink - if any of the nodeids required by the
934 # it 946 # filterspec aren't in this node's property, then skip
935 for value in v: 947 # it
936 if value not in node[k]: 948 for value in v:
937 break 949 if value not in node[k]:
938 else: 950 break
939 continue 951 else:
940 break 952 continue
941 elif t == 2 and (node[k] is None or not v.search(node[k])): 953 break
942 # RE search 954 elif t == 2 and (node[k] is None or not v.search(node[k])):
943 break 955 # RE search
944 elif t == 6 and node[k] != v: 956 break
945 # straight value comparison for the other types 957 elif t == 6 and node[k] != v:
946 break 958 # straight value comparison for the other types
947 else: 959 break
948 l.append((nodeid, node)) 960 else:
961 l.append((nodeid, node))
962 finally:
963 cldb.close()
949 l.sort() 964 l.sort()
950 965
951 # filter based on full text search 966 # filter based on full text search
952 if search_matches is not None: 967 if search_matches is not None:
953 k = [] 968 k = []
1167 cl.create(name=options[i], order=i) 1182 cl.create(name=options[i], order=i)
1168 return hyperdb.Link(name) 1183 return hyperdb.Link(name)
1169 1184
1170 # 1185 #
1171 # $Log: not supported by cvs2svn $ 1186 # $Log: not supported by cvs2svn $
1187 # Revision 1.69 2002/06/17 23:15:29 richard
1188 # Can debug to stdout now
1189 #
1172 # Revision 1.68 2002/06/11 06:52:03 richard 1190 # Revision 1.68 2002/06/11 06:52:03 richard
1173 # . #564271 ] find() and new properties 1191 # . #564271 ] find() and new properties
1174 # 1192 #
1175 # Revision 1.67 2002/06/11 05:02:37 richard 1193 # Revision 1.67 2002/06/11 05:02:37 richard
1176 # . #565979 ] code error in hyperdb.Class.find 1194 # . #565979 ] code error in hyperdb.Class.find
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