Object oriented framework mechanism for discovery of computer systems in a network

• US 6,865,728 B1
• Filed: 05/13/1999
• Issued: 03/08/2005
• Est. Priority Date: 05/13/1999
• Status: Active Grant

• Current Assignee: ServiceNow Incorporated
• Original Assignee: International Business Machines Corporation
• Inventors: Tedor, Jason E., Branson, Michael J.
• Primary Examiner(s): Lim, Krisna
• Application Number:
  US09/311,025
• Time in Patent Office: 2,126 Days
• Field of Search: 717/1, 717/2, 717/11, 717/100, 717/108, 707/101, 707/103
• US Class Current: 717/108
• CPC Class Codes: H04L 41/0233 Object-oriented techniques, for representation of network management data, e.g. common object request broker architecture [CORBA]
• CPC Class Codes: H04L 41/046 comprising network management agents or mobile agents therefor
• CPC Class Codes: H04L 41/12 Discovery or management of network topologies
• CPC Class Codes: Y10S 707/99942 Manipulating data structure, e.g. compression, compaction, compilation

Abstract

An extensible Object-Oriented (OO) framework mechanism in an object-oriented programming system defines objects and classes used to discover and, if desired, validate computer systems in a network. The OO framework mechanism defines a discover configuration object and one or more discovery agent objects that cooperate to discover computer systems in the network. If desired, the OO framework mechanism may also define one or more candidate validator objects that validate the discovered computer systems for use with a particular application or program.

Claims

1. An apparatus coupled to a network for discovery of computer systems in the network, the apparatus comprising:

at least one processor;

a memory coupled to the at least one processor; and

an object-oriented framework mechanism residing in the memory, the framework mechanism comprising a discovery configuration object and at least one discovery agent object, the discovery configuration object directing the at least one discovery agent object to discover computer systems in the network, and the discovery agent object discovers computer systems in the network.

2. The apparatus of claim 1 wherein the framework mechanism comprises a discovery configuration class, the discovery configuration class defining:

at least a portion of the discovery configuration object; and

a discover systems method, defined in the portion of the discovery configuration object, that directs the discovery agent object to discover computer systems in the network.

3. The apparatus of claim 2 wherein the discovery configuration class is a core class of the framework mechanism, the implementation of which cannot be modified by a user.

4. The apparatus of claim 2 wherein the at least one discovery agent is a plurality of discovery agents, and wherein the discovery configuration class further defines an add discovery agent object method, defined in the portion of the discovery configuration object, that adds each discovery agent to a discovery agent list, the discover systems method iterating through the discovery agent list and directing each discovery agent in the discovery agent list to discover computer systems in the network.

5. The apparatus of claim 1, wherein:

the framework mechanism comprises an extensible discovery agent class, the discovery agent class defining;

at least a portion of the at least one discovery agent object; and

an extensible discover object method whose existence is defined in the portion of the at least one discovery agent object, the discover object method extended by a consumer to discover computer systems in the network; and

the discovery configuration object directs the at least one discovery agent to discover computer systems in the network by calling the discover object method on the at least one discovery agent.

6. The apparatus of claim 2 wherein the framework mechanism further comprises at least one candidate validator object that validates computer systems in the network for use with an application, the discovery configuration object directing the at least one validator object to validate computer systems in the network.

7. The apparatus of claim 6, wherein:

the framework mechanism comprises an extensible candidate validator class, the candidate validator class defining;

at least a portion of the at least one candidate validator object; and

an extensible isValid object method whose existence is defined in the portion of the at least one candidate validator object, the isValid object method extended by a consumer to validate computers systems in the network for use with an application; and

the discovery configuration object directs the at least one candidate validator to validate computer systems in the network by calling the isValid object method on the at least one candidate validator.

8. The apparatus of claim 6 wherein the at least one candidate validator is a plurality of candidate validators, and wherein the discovery configuration class further defines an add candidate validator object method, defined in the portion of the discovery configuration object, that adds each candidate validator to a candidate validator list, the discover systems method iterating through the candidate validator list and directing each candidate validator in the candidate validator list to validate computer systems in the network.

9. The apparatus of claim 1, wherein:

the framework mechanism comprises a candidate systems list object instantiated from a system list class having an add systems object method that adds candidate system objects to the candidate systems list object; and

candidate system objects corresponding to candidate computer systems discovered by the at least one discovery agent are added to the candidate system list object.

10. The apparatus of claim 1, wherein:

the framework mechanism comprises a valid systems list object instantiated from a system list class having an add systems object method that adds valid system objects to the valid systems list object; and

valid system objects corresponding to valid computer systems discovered by the at least one candidate validator are added to the valid system list object.

11. A method for discovery of computer systems in a network that is performed on an apparatus coupled to the network and comprising at least one processor coupled to a memory, the method comprising the steps of:

providing an object-oriented framework mechanism residing in the memory, the framework mechanism comprising a discovery configuration object and at least one discovery agent object;

the discovery configuration object directing the at least one discovery agent object to discover computer systems in the network; and

the discovery agent object discovering computer systems in the network.

12. The method of claim 11, wherein:

the framework mechanism comprises a discovery configuration class, the discovery configuration class defining;

at least a portion of the discovery configuration object; and

a discover systems method, defined in the portion of the discovery configuration object; and

the step of the discovery configuration object directing the at least one discovery agent object to discover computer systems in the network comprises the discover systems method directing the discovery agent object to discover computer systems in the network.

13. The method of claim 12 wherein the discovery configuration class is a core class of the framework mechanism, the implementation of which cannot be modified by a user.

14. The method of claim 12 wherein the at least one discovery agent is a plurality of discovery agents, and wherein the discovery configuration class further defines an add discovery agent object method, defined in the portion of the discovery configuration object, and wherein the method further comprises the steps of:

the discovery configuration calling the add discovery agent object method that adds each discovery agent to a discovery agent list; and

the discovery configuration calling the discover systems method, which iterates through the discovery agent list and directs each discovery agent in the discovery agent list to discover computer systems in the network.

15. The method of claim 11, wherein:

the framework mechanism comprises an extensible discovery agent class, the discovery agent class defining;

at least a portion of the at least one discovery agent object; and

an extensible discover object method whose existence is defined in the portion of the at least one discovery agent object, the discover object method extended by a consumer to discover computer systems in the network; and

the method further comprises the step of the discovery configuration object directing the at least one discovery agent to discover computer systems in the network by calling the discover object method on the at least one discovery agent.

16. The method of claim 11 wherein the framework mechanism further comprises at least one candidate validator object, and wherein the method further comprises the steps of:

the discovery configuration object directing the at least one validator object to validate computer systems in the network; and

the at least one candidate validator object validating computer systems in the network for use with an application.

17. The method of claim 16, wherein:

the framework mechanism comprises an extensible candidate validator class, the candidate validator class defining;

at least a portion of the at least one candidate validator object; and

an extensible isValid object method whose existence is defined in the portion of the at least one candidate validator object, the isValid object method extended by a consumer to validate computers systems in the network for use with an application; and

the method further comprises the step of the discovery configuration object directing the at least one candidate validator to validate computer systems in the network by calling the isValid object method on the at least one candidate validator.

18. The method of claim 16 wherein the at least one candidate validator is a plurality of candidate validators, and wherein the discovery configuration class further defines an add candidate validator object method, defined in the portion of the discovery configuration object, and wherein the method further comprises the steps of:

the discovery configuration object calling the add candidate validator object method that adds each candidate validator to a candidate validator list;

the validate systems method iterating through the candidate validator list and directing each candidate validator in the candidate validator list to validate computer systems in the network.

19. The method of claim 11, wherein:

the framework mechanism comprises a candidate systems list object instantiated from a system list class having an add systems object method that adds candidate system objects to the candidate systems list object; and

the method further comprises the step of the add systems object method adding candidate system objects, corresponding to candidate computer systems discovered by the at least one discovery agent, to the candidate system list.

20. The method of claim 11, wherein:

the framework mechanism comprises a valid systems list object instantiated from a system list class having an add systems object method that adds valid system objects to the valid systems list object; and

the method further comprises the step of the add systems object method adding valid system objects, corresponding to valid computer systems discovered by the at least one candidate validator, to the valid system list object.

21. A program product for discovery of computer systems in a network, the program product comprising:

an object-oriented framework mechanism providing a discovery configuration object and at least one discovery agent object, the discovery configuration object directing the at least one discovery agent object to discover computer systems in the network, and the discovery agent object discovers computer systems in the network; and

signal bearing media bearing the framework mechanism.

22. The program product of claim 21 wherein the signal bearing media comprises recordable media.

23. The program product of claim 21 wherein the signal bearing media comprises transmission media.

24. The program product of claim 21 wherein the framework mechanism comprises a discovery configuration class, the discovery configuration class defining:

at least a portion of the discovery configuration object; and

a discover systems method, defined in the portion of the discovery configuration object, that directs the discovery agent object to discover computer systems in the network.

25. The program product of claim 24 wherein the discovery configuration class is a core class of the framework mechanism, the implementation of which cannot be modified by a user.

26. The program product of claim 24 wherein the at least one discovery agent is a plurality of discovery agents, and wherein the discovery configuration class further defines an add discovery agent object method, defined in the portion of the discovery configuration object, that adds each discovery agent to a discovery agent list, the discover systems method iterating through the discovery agent list and directing each discovery agent in the discovery agent list to discover computer systems in the network.

27. The program product of claim 21, wherein:

the framework mechanism comprises an extensible discovery agent class, the discovery agent class defining;

at least a portion of the at least one discovery agent object; and

an extensible discover object method whose existence is defined in the portion of the at least one discovery agent object, the discover object method extended by a consumer to discover computer systems in the network; and

the discovery configuration object directs the at least one discovery agent to discover computer systems in the network by calling the discover object method on the at least one discovery agent.

28. The program product of claim 24 wherein the framework mechanism further comprises at least one candidate validator object that validates computer systems in the network for use with an application, the discovery configuration object directing the at least one validator object to validate computer systems in the network.

29. The program product of claim 28, wherein:

the framework mechanism comprises an extensible candidate validator class, the candidate validator class defining;

at least a portion of the at least one candidate validator object; and

an extensible isValid object method whose existence is defined in the portion of the at least one candidate validator object, the isValid object method extended by a consumer to validate computers systems in the network for use with an application; and

the discovery configuration object directs the at least one candidate validator to validate computer systems in the network by calling the isValid object method on the at least one candidate validator.

30. The program product of claim 28 wherein the at least one candidate validator is a plurality of candidate validators, and wherein the discovery configuration class further defines an add candidate validator object method, defined in the portion of the discovery configuration object, that adds each candidate validator to a candidate validator list, the discover systems method iterating through the candidate validator list and directing each candidate validator in the candidate validator list to validate computer systems in the network.

31. The program product of claim 21, wherein:

the framework mechanism comprises a candidate systems list object instantiated from a system list class having an add systems object method that adds candidate system objects to the candidate systems list object; and

candidate system objects corresponding to candidate computer systems discovered by the at least one discovery agent are added to the candidate system list object.

32. The program product of claim 21, wherein:

the framework mechanism comprises a valid systems list object instantiated from a system list class having an add systems object method that adds valid system objects to the valid systems list object; and

valid system objects corresponding to valid computer systems discovered by the at least one candidate validator are added to the valid system list object.

33. An object-oriented framework mechanism for use in an apparatus that supports an object oriented programming environment and for discovering computer systems in a network, the framework mechanism comprising:

a discovery configuration object that directs the at least one discovery agent object to discover computer systems in the network; and

the at least one discovery agent object that discovers computer systems in the network.

34. The object-oriented framework mechanism of claim 33 wherein the framework mechanism comprises a discovery configuration class, the discovery configuration class defining:

at least a portion of the discovery configuration object; and

a discover systems method, defined in the portion of the discovery configuration object, that directs the discovery agent object to discover computer systems in the network.

35. The object-oriented framework mechanism of claim 34 wherein the discovery configuration class is a core class of the framework mechanism, the implementation of which cannot be modified by a user.

36. The object-oriented framework mechanism of claim 34 wherein the at least one discovery agent is a plurality of discovery agents, and wherein the discovery configuration class further defines an add discovery agent object method, defined in the portion of the discovery configuration object, that adds each discovery agent to a discovery agent list, the discover systems method iterating through the discovery agent list and directing each discovery agent in the discovery agent list to discover computer systems in the network.

37. The object-oriented framework mechanism of claim 33, wherein:

the framework mechanism comprises an extensible discovery agent class, the discovery agent class defining;

at least a portion of the at least one discovery agent object; and

an extensible discover object method whose existence is defined in the portion of the at least one discovery agent object, the discover object method extended by a consumer to discover computer systems in the network; and

the discovery configuration object directs the at least one discovery agent to discover computer systems in the network by calling the discover object method on the at least one discovery agent.

38. The object-oriented framework mechanism of claim 34 wherein the framework mechanism further comprises at least one candidate validator object that validates computer systems in the network for use with an application, the discovery configuration object directing the at least one validator object to validate computer systems in the network.

39. The object-oriented framework mechanism of claim 38, wherein:

the framework mechanism comprises an extensible candidate validator class, the candidate validator class defining;

at least a portion of the at least one candidate validator object; and

an extensible isValid object method whose existence is defined in the portion of the at least one candidate validator object, the isValid object method extended by a consumer to validate computers systems in the network for use with an application; and

the discovery configuration object directs the at least one candidate validator to validate computer systems in the network by calling the isValid object method on the at least one candidate validator.

40. The object-oriented framework mechanism of claim 38 wherein the at least one candidate validator is a plurality of candidate validators, and wherein the discovery configuration class further defines an add candidate validator object method, defined in the portion of the discovery configuration object, that adds each candidate validator to a candidate validator list, the discover systems method iterating through the candidate validator list and directing each candidate validator in the candidate validator list to validate computer systems in the network.

41. The object-oriented framework mechanism of claim 33, wherein:

the framework mechanism comprises a candidate systems list object instantiated from a system list class having an add systems object method that adds candidate system objects to the candidate systems list object; and

candidate system objects corresponding to candidate computer systems discovered by the at least one discovery agent are added to the candidate system list object.

42. The object-oriented framework mechanism of claim 33, wherein:

the framework mechanism comprises a valid systems list object instantiated from a system list class having an add systems object method that adds valid system objects to the valid systems list object; and

valid system objects corresponding to valid computer systems discovered by the at least one candidate validator are added to the valid system list object.