Source Code for Module flumotion.project.project

 1  # -*- Mode: Python -*- 
 2  # vi:si:et:sw=4:sts=4:ts=4 
 3  # 
 4  # Flumotion - a streaming media server 
 5  # Copyright (C) 2004,2005,2006,2007 Fluendo, S.L. (www.fluendo.com). 
 6  # All rights reserved. 
 7   
 8  # This file may be distributed and/or modified under the terms of 
 9  # the GNU General Public License version 2 as published by 
10  # the Free Software Foundation. 
11  # This file is distributed without any warranty; without even the implied 
12  # warranty of merchantability or fitness for a particular purpose. 
13  # See "LICENSE.GPL" in the source distribution for more information. 
14   
15  # Licensees having purchased or holding a valid Flumotion Advanced 
16  # Streaming Server license may use this file in accordance with the 
17  # Flumotion Advanced Streaming Server Commercial License Agreement. 
18  # See "LICENSE.Flumotion" in the source distribution for more information. 
19   
20  # Headers in this file shall remain intact. 
21   
22  import os 
23  import sys 
24   
25  from flumotion.common import package, errors, log 
26   
27  import flumotion.project 
28   
29  __version__ = "$Rev: 6633 $" 
30   
31   
32 -def list(): 
33      """ 
34      Returns a list of all add-on projects seen by Flumotion. 
35      """ 
36      projects = [n for n in sys.modules.keys() if n.startswith('flumotion.project')] 
37      paths = flumotion.project.__path__ 
38      modules = [] 
39      for path in paths: 
40          modules.extend(package.findEndModuleCandidates( 
41              os.path.abspath(os.path.join(path, '..', '..')), 
42              prefix='flumotion.project')) 
43   
44      modules.remove('flumotion.project.project') 
45   
46      return [n[len('flumotion.project.'):] for n in modules] 
47   
48 -def get(project, attribute, default=None): 
49      """ 
50      Get an attribute from a project's module. 
51      """ 
52      log.debug('project', 'Getting attribute %s from project %s', 
53          attribute, project) 
54   
55      moduleName = "flumotion.project.%s" % project 
56      try: 
57          exec("import %s" % moduleName) 
58      except ImportError, e: 
59          log.warning('project', 'Could not load project %s: %s', 
60              project, log.getExceptionMessage(e)) 
61          raise errors.NoProjectError(moduleName) 
62      except SyntaxError: 
63          raise errors.NoProjectError(moduleName) 
64      m = sys.modules[moduleName] 
65      return getattr(m, attribute, default) 
66