Source Code for Module gofer.agent.whiteboard

 1  # 
 2  # Copyright (c) 2011 Red Hat, Inc. 
 3  # 
 4  # This software is licensed to you under the GNU Lesser General Public 
 5  # License as published by the Free Software Foundation; either version 
 6  # 2 of the License (LGPLv2) or (at your option) any later version. 
 7  # There is NO WARRANTY for this software, express or implied, 
 8  # including the implied warranties of MERCHANTABILITY, 
 9  # NON-INFRINGEMENT, or FITNESS FOR A PARTICULAR PURPOSE. You should 
10  # have received a copy of LGPLv2 along with this software; if not, see 
11  # http://www.gnu.org/licenses/old-licenses/lgpl-2.0.txt. 
12  # 
13  # Jeff Ortel <jortel@redhat.com> 
14  # 
15   
16  from threading import RLock 
17  from gofer import Singleton, synchronized 
18   
19   
20 -class Whiteboard: 
21      """ 
22      Provides a dict-like object used to publish 
23      information to other plugins. 
24      """ 
25       
26      __metaclass__ = Singleton 
27       
28 -    def __init__(self): 
29          self.__dict = {} 
30          self.__mutex = RLock() 
31           
32      @synchronized 
33 -    def get(self, name, default=None): 
34          return self.__dict.get(name, default) 
35       
36      @synchronized 
37 -    def update(self, d): 
38          self.__dict.update(d) 
39       
40      @synchronized 
41 -    def __getitem__(self, name): 
42          return self.__dict[name] 
43       
44      @synchronized 
45 -    def __setitem__(self, name, value): 
46          self.__dict[name] = value 
47   
48      @synchronized 
49 -    def __repr__(self): 
50          return repr(self.__dict) 
51       
52      @synchronized 
53 -    def __str__(self): 
54          return str(self.__dict) 
55