Source Code for Module Products.ZenRelations.checkrel

 1  ############################################################################## 
 2  #  
 3  # Copyright (C) Zenoss, Inc. 2007, all rights reserved. 
 4  #  
 5  # This content is made available according to terms specified in 
 6  # License.zenoss under the directory where your Zenoss product is installed. 
 7  #  
 8  ############################################################################## 
 9   
10   
11  import sys 
12  import logging 
13  logging.basicConfig() 
14  root = logging.getLogger() 
15  root.setLevel(logging.CRITICAL) 
16   
17  import Globals 
18   
19  from utils import importClass, importClasses 
20  from Products.ZenRelations.Exceptions import ZenSchemaError 
21   
22 -def lookupSchema(cls, relname): 
23      """ 
24      Lookup the schema definition for a relationship.  
25      All base classes are checked until RelationshipManager is found. 
26      """ 
27      for name, schema in cls._relations: 
28          if name == relname: return schema 
29      raise ZenSchemaError("Schema for relation %s not found on %s" % 
30                              (relname, cls.__name__)) 
31   
32   
33 -def checkRelationshipSchema(cls, baseModule): 
34      """ 
35      Walk all relationship schema definitions and confirm that they 
36      have reciprical peers on the remote class. 
37      """ 
38      for relname, rel in cls._relations: 
39          try: 
40              remoteClass = importClass(rel.remoteClass, None)     
41          except AttributeError, e: 
42              logging.critical("RemoteClass '%s' from '%s.%s' not found", 
43                          rel.remoteClass, cls.__name__, relname) 
44              continue                         
45          try: 
46              rschema = lookupSchema(remoteClass, rel.remoteName) 
47          except ZenSchemaError, e: 
48              logging.critical("Inverse def '%s' for '%s.%s' not found on '%s'", 
49                  rel.remoteName, cls.__name__, relname,rel.remoteClass) 
50              continue 
51          except Exception, e: 
52              logging.critical("RemoteClass '%s' for '%s.%s' problem.", 
53                  rel.remoteName, cls.__name__, relname) 
54              logging.critical(e) 
55              continue 
56          try: 
57              localClass = importClass(rschema.remoteClass, None) 
58          except AttributeError, e: 
59              logging.critical(e) 
60          if not issubclass(cls, localClass): 
61              logging.critical("Inverse def '%s' from '%s.%s' wrong " 
62              "remoteClass: '%s'", rel.remoteName, cls.__name__, 
63                                   relname,rschema.remoteClass) 
64          if rschema.remoteName != relname: 
65              logging.critical("Inverse def '%s' from '%s.%s' wrong " 
66                  "remoteName: '%s'", rel.remoteName, cls.__name__, relname, 
67                                      rschema.remoteName) 
68          if rel.remoteType != rschema.__class__: 
69              logging.critical("'%s.%s' inverse '%s' type %s != %s", 
70                              cls.__name__, relname, rel.remoteName,  
71                              rschema.__class__.__name__, rel.remoteType.__name__) 
72   
73           
74  baseModule = None 
75  if len(sys.argv) > 1: 
76      baseModule = sys.argv[1] 
77       
78  classList = importClasses(basemodule=baseModule,  
79              skipnames=("ZentinelPortal", "ZDeviceLoader")) 
80   
81  for classdef in classList: 
82      if hasattr(classdef, '_relations'): 
83          logging.info("checking class %s...", classdef.__name__) 
84          checkRelationshipSchema(classdef, baseModule) 
85