Source Code for Module ZenUtils.ZenZopeThread

 1  ########################################################################### 
 2  # 
 3  # This program is part of Zenoss Core, an open source monitoring platform. 
 4  # Copyright (C) 2007, Zenoss Inc. 
 5  # 
 6  # This program is free software; you can redistribute it and/or modify it 
 7  # under the terms of the GNU General Public License version 2 as published by 
 8  # the Free Software Foundation. 
 9  # 
10  # For complete information please visit: http://www.zenoss.com/oss/ 
11  # 
12  ########################################################################### 
13  import logging 
14  from threading import Thread 
15   
16 -class ZenZopeThread(Thread): 
17      """  
18      Thread running inside zope that has its own read-only connection to the db. 
19      """ 
20   
21 -    def __init__(self): 
22          Thread.__init__(self) 
23          self.setDaemon(1) 
24   
25   
26 -    def opendb(self): 
27          """Open a connection to the zope database. 
28          """ 
29          from Zope2 import DB 
30          self.conn = DB.open() 
31          root = self.conn.root() 
32          self.app  = root['Application'] 
33   
34   
35 -    def syncdb(self): 
36          """Sync the connection to the zope database. 
37          """ 
38          self.conn.sync() 
39   
40   
41 -    def closedb(self): 
42          """Abort our transaction (we are read-only) and close connection. 
43          """ 
44          try: 
45              import transaction 
46              transaction.abort() 
47              self.conn.close()  
48          except: 
49              pass 
50