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author | richard <richard@57a73879-2fb5-44c3-a270-3262357dd7e2> | |
Mon, 23 Jul 2001 06:23:41 +0000 (06:23 +0000) | ||
committer | richard <richard@57a73879-2fb5-44c3-a270-3262357dd7e2> | |
Mon, 23 Jul 2001 06:23:41 +0000 (06:23 +0000) |
git-svn-id: http://svn.roundup-tracker.org/svnroot/roundup/trunk@45 57a73879-2fb5-44c3-a270-3262357dd7e2
roundup/backends/bsddb.py | [new file with mode: 0644] | patch | blob |
roundup/hyper_bsddb.py | [deleted file] | patch | blob | history |
diff --git a/roundup/backends/bsddb.py b/roundup/backends/bsddb.py
--- /dev/null
@@ -0,0 +1,170 @@
+#$Id: bsddb.py,v 1.1 2001-07-23 06:23:41 richard Exp $
+
+import bsddb, os, cPickle
+import hyperdb, date
+
+#
+# Now the database
+#
+class Database(hyperdb.Database):
+ """A database for storing records containing flexible data types."""
+
+ def __init__(self, storagelocator, journaltag=None):
+ """Open a hyperdatabase given a specifier to some storage.
+
+ The meaning of 'storagelocator' depends on the particular
+ implementation of the hyperdatabase. It could be a file name,
+ a directory path, a socket descriptor for a connection to a
+ database over the network, etc.
+
+ The 'journaltag' is a token that will be attached to the journal
+ entries for any edits done on the database. If 'journaltag' is
+ None, the database is opened in read-only mode: the Class.create(),
+ Class.set(), and Class.retire() methods are disabled.
+ """
+ self.dir, self.journaltag = storagelocator, journaltag
+ self.classes = {}
+
+ #
+ # Classes
+ #
+ def __getattr__(self, classname):
+ """A convenient way of calling self.getclass(classname)."""
+ return self.classes[classname]
+
+ def addclass(self, cl):
+ cn = cl.classname
+ if self.classes.has_key(cn):
+ raise ValueError, cn
+ self.classes[cn] = cl
+
+ def getclasses(self):
+ """Return a list of the names of all existing classes."""
+ l = self.classes.keys()
+ l.sort()
+ return l
+
+ def getclass(self, classname):
+ """Get the Class object representing a particular class.
+
+ If 'classname' is not a valid class name, a KeyError is raised.
+ """
+ return self.classes[classname]
+
+ #
+ # Class DBs
+ #
+ def clear(self):
+ for cn in self.classes.keys():
+ db = os.path.join(self.dir, 'nodes.%s'%cn)
+ bsddb.btopen(db, 'n')
+ db = os.path.join(self.dir, 'journals.%s'%cn)
+ bsddb.btopen(db, 'n')
+
+ def getclassdb(self, classname, mode='r'):
+ ''' grab a connection to the class db that will be used for
+ multiple actions
+ '''
+ path = os.path.join(os.getcwd(), self.dir, 'nodes.%s'%classname)
+ return bsddb.btopen(path, mode)
+
+ def addnode(self, classname, nodeid, node):
+ ''' add the specified node to its class's db
+ '''
+ db = self.getclassdb(classname, 'c')
+ db[nodeid] = cPickle.dumps(node, 1)
+ db.close()
+ setnode = addnode
+
+ def getnode(self, classname, nodeid, cldb=None):
+ ''' add the specified node to its class's db
+ '''
+ db = cldb or self.getclassdb(classname)
+ if not db.has_key(nodeid):
+ raise IndexError, nodeid
+ res = cPickle.loads(db[nodeid])
+ if not cldb: db.close()
+ return res
+
+ def hasnode(self, classname, nodeid, cldb=None):
+ ''' add the specified node to its class's db
+ '''
+ db = cldb or self.getclassdb(classname)
+ res = db.has_key(nodeid)
+ if not cldb: db.close()
+ return res
+
+ def countnodes(self, classname, cldb=None):
+ db = cldb or self.getclassdb(classname)
+ return len(db.keys())
+ if not cldb: db.close()
+ return res
+
+ def getnodeids(self, classname, cldb=None):
+ db = cldb or self.getclassdb(classname)
+ res = db.keys()
+ if not cldb: db.close()
+ return res
+
+ #
+ # Journal
+ #
+ def addjournal(self, classname, nodeid, action, params):
+ ''' Journal the Action
+ 'action' may be:
+
+ 'create' or 'set' -- 'params' is a dictionary of property values
+ 'link' or 'unlink' -- 'params' is (classname, nodeid, propname)
+ 'retire' -- 'params' is None
+ '''
+ entry = (nodeid, date.Date(), self.journaltag, action, params)
+ db = bsddb.btopen(os.path.join(self.dir, 'journals.%s'%classname), 'c')
+ if db.has_key(nodeid):
+ s = db[nodeid]
+ l = cPickle.loads(db[nodeid])
+ l.append(entry)
+ else:
+ l = [entry]
+ db[nodeid] = cPickle.dumps(l)
+ db.close()
+
+ def getjournal(self, classname, nodeid):
+ ''' get the journal for id
+ '''
+ db = bsddb.btopen(os.path.join(self.dir, 'journals.%s'%classname), 'r')
+ res = cPickle.loads(db[nodeid])
+ db.close()
+ return res
+
+ def close(self):
+ ''' Close the Database - we must release the circular refs so that
+ we can be del'ed and the underlying bsddb connections closed
+ cleanly.
+ '''
+ self.classes = None
+
+
+ #
+ # Basic transaction support
+ #
+ # TODO: well, write these methods (and then use them in other code)
+ def register_action(self):
+ ''' Register an action to the transaction undo log
+ '''
+
+ def commit(self):
+ ''' Commit the current transaction, start a new one
+ '''
+
+ def rollback(self):
+ ''' Reverse all actions from the current transaction
+ '''
+
+#
+#$Log: not supported by cvs2svn $
+#Revision 1.2 2001/07/22 12:09:32 richard
+#Final commit of Grande Splite
+#
+#Revision 1.1 2001/07/22 11:58:35 richard
+#More Grande Splite
+#
diff --git a/roundup/hyper_bsddb.py b/roundup/hyper_bsddb.py
--- a/roundup/hyper_bsddb.py
+++ /dev/null
@@ -1,167 +0,0 @@
-#$Id: hyper_bsddb.py,v 1.2 2001-07-22 12:09:32 richard Exp $
-
-import bsddb, os, cPickle
-import hyperdb, date
-
-#
-# Now the database
-#
-class Database(hyperdb.Database):
- """A database for storing records containing flexible data types."""
-
- def __init__(self, storagelocator, journaltag=None):
- """Open a hyperdatabase given a specifier to some storage.
-
- The meaning of 'storagelocator' depends on the particular
- implementation of the hyperdatabase. It could be a file name,
- a directory path, a socket descriptor for a connection to a
- database over the network, etc.
-
- The 'journaltag' is a token that will be attached to the journal
- entries for any edits done on the database. If 'journaltag' is
- None, the database is opened in read-only mode: the Class.create(),
- Class.set(), and Class.retire() methods are disabled.
- """
- self.dir, self.journaltag = storagelocator, journaltag
- self.classes = {}
-
- #
- # Classes
- #
- def __getattr__(self, classname):
- """A convenient way of calling self.getclass(classname)."""
- return self.classes[classname]
-
- def addclass(self, cl):
- cn = cl.classname
- if self.classes.has_key(cn):
- raise ValueError, cn
- self.classes[cn] = cl
-
- def getclasses(self):
- """Return a list of the names of all existing classes."""
- l = self.classes.keys()
- l.sort()
- return l
-
- def getclass(self, classname):
- """Get the Class object representing a particular class.
-
- If 'classname' is not a valid class name, a KeyError is raised.
- """
- return self.classes[classname]
-
- #
- # Class DBs
- #
- def clear(self):
- for cn in self.classes.keys():
- db = os.path.join(self.dir, 'nodes.%s'%cn)
- bsddb.btopen(db, 'n')
- db = os.path.join(self.dir, 'journals.%s'%cn)
- bsddb.btopen(db, 'n')
-
- def getclassdb(self, classname, mode='r'):
- ''' grab a connection to the class db that will be used for
- multiple actions
- '''
- path = os.path.join(os.getcwd(), self.dir, 'nodes.%s'%classname)
- return bsddb.btopen(path, mode)
-
- def addnode(self, classname, nodeid, node):
- ''' add the specified node to its class's db
- '''
- db = self.getclassdb(classname, 'c')
- db[nodeid] = cPickle.dumps(node, 1)
- db.close()
- setnode = addnode
-
- def getnode(self, classname, nodeid, cldb=None):
- ''' add the specified node to its class's db
- '''
- db = cldb or self.getclassdb(classname)
- if not db.has_key(nodeid):
- raise IndexError, nodeid
- res = cPickle.loads(db[nodeid])
- if not cldb: db.close()
- return res
-
- def hasnode(self, classname, nodeid, cldb=None):
- ''' add the specified node to its class's db
- '''
- db = cldb or self.getclassdb(classname)
- res = db.has_key(nodeid)
- if not cldb: db.close()
- return res
-
- def countnodes(self, classname, cldb=None):
- db = cldb or self.getclassdb(classname)
- return len(db.keys())
- if not cldb: db.close()
- return res
-
- def getnodeids(self, classname, cldb=None):
- db = cldb or self.getclassdb(classname)
- res = db.keys()
- if not cldb: db.close()
- return res
-
- #
- # Journal
- #
- def addjournal(self, classname, nodeid, action, params):
- ''' Journal the Action
- 'action' may be:
-
- 'create' or 'set' -- 'params' is a dictionary of property values
- 'link' or 'unlink' -- 'params' is (classname, nodeid, propname)
- 'retire' -- 'params' is None
- '''
- entry = (nodeid, date.Date(), self.journaltag, action, params)
- db = bsddb.btopen(os.path.join(self.dir, 'journals.%s'%classname), 'c')
- if db.has_key(nodeid):
- s = db[nodeid]
- l = cPickle.loads(db[nodeid])
- l.append(entry)
- else:
- l = [entry]
- db[nodeid] = cPickle.dumps(l)
- db.close()
-
- def getjournal(self, classname, nodeid):
- ''' get the journal for id
- '''
- db = bsddb.btopen(os.path.join(self.dir, 'journals.%s'%classname), 'r')
- res = cPickle.loads(db[nodeid])
- db.close()
- return res
-
- def close(self):
- ''' Close the Database - we must release the circular refs so that
- we can be del'ed and the underlying bsddb connections closed
- cleanly.
- '''
- self.classes = None
-
-
- #
- # Basic transaction support
- #
- # TODO: well, write these methods (and then use them in other code)
- def register_action(self):
- ''' Register an action to the transaction undo log
- '''
-
- def commit(self):
- ''' Commit the current transaction, start a new one
- '''
-
- def rollback(self):
- ''' Reverse all actions from the current transaction
- '''
-
-#
-#$Log: not supported by cvs2svn $
-#Revision 1.1 2001/07/22 11:58:35 richard
-#More Grande Splite
-#