Event notification

• US 9,990,238 B2
• Filed: 11/05/2012
• Issued: 06/05/2018
• Est. Priority Date: 11/05/2012
• Status: Active Grant

• Current Assignee: Red Hat, Inc. (International Business Machines Corporation)
• Original Assignee: Red Hat, Inc. (International Business Machines Corporation)
• Inventors: Seago, Scott Wayne, Guiditta, Jason
• Primary Examiner(s): KATSIKIS, KOSTAS J
• Application Number:
  US13/669,276
• Publication Number:
  US 20140129698A1
• Time in Patent Office: 2,038 Days
• Field of Search: 709224
• CPC Class Codes: G06F 2209/544 Remote
• CPC Class Codes: G06F 9/5077 Logical partitioning of resources; Management or configuration of virtualized resources specific details on emulation or internal functioning of virtual machines G06F9/455
• CPC Class Codes: G06F 9/542 Event management; Broadcasting; Multicasting; Notifications

Abstract

A server computer detects an event relating to a plurality of objects in a cloud. The server computer logs event data based on the event in a data store. The server computer examines subscription data to identify applications subscribing to the detected event, wherein the applications are executing in the cloud, and provides event data to the identified applications in the cloud.

Claims

1. A method comprising:

receiving, by a processing device executing an event server, event data from an agent associated with an object deployed in a cloud, wherein the event data comprises an identifier associated with the object, wherein the event server maintains a list of events associated with a plurality of applications;

detecting an event related to the object in view of the event data;

adding the event to the list of events maintained by the event server;

logging the event data comprising the identifier associated with the object in a data store;

determining, in view of a subscription data, that an application of the plurality of applications subscribes to the event with respect to a plurality of attributes of the event data, wherein the subscription data is generated in accordance with an analysis of an application workflow;

responsive to determining that at least one of the plurality of attributes has changed;

executing the application workflow;

updating the event data associated with the event in the data store in view of the changed at least one attribute value; and

providing the updated event data to the application.

2. The method of claim 1, wherein the object in the cloud comprises a virtual machine associated with the identifier in the cloud, wherein the agent is associated with the virtual machine, and wherein logging the event data comprises:

identifying the virtual machine related to the event;

identifying new values of attributes of the virtual machine that changed as part of the event; and

updating the event data for the virtual machine in the data store in view of the new values.

3. The method of claim 1, wherein the application is distinct from the object, and wherein the event data comprises values of attributes of the object.

4. The method of claim 1, further comprising providing an application programming interface to allow the applications to subscribe to the event.

5. The method of claim 1, further comprising providing user access to the event data in the data store.

6. The method of claim 1, wherein the application workflow comprises a required user action.

7. A system comprising:

a memory; and

a processing device, communicatively coupled to the memory, to;

receive, by an event server, event data from an agent associated with an object deployed in a cloud, wherein the event data comprises an identifier associated with the object, wherein the event server maintains a list of events associated with a plurality of applications;

detect an event related to the object in view of the event data;

add the event to the list of events maintained by the event server;

log the event data comprising the identifier associated with the object in a data store;

determine, in view of a subscription data, that an application of the plurality of applications subscribes to the event with respect to a plurality of attributes of the event data, wherein the subscription data is generated in accordance with an analysis of an application workflow;

responsive to determining that at least one of the plurality of attributes has changed;

execute the application workflow;

update the event data associated with the event in the data store in view of the changed at least one attribute value; and

provide the updated event data to the application.

8. The system of claim 7, wherein the processing device is further to provide user access to the event data in the data store.

9. The system of claim 7, wherein the object in the cloud comprises a virtual machine associated with the identifier in the cloud, wherein the agent is associated with the virtual machine, and wherein, to log the event data, the processing device is further to:

identify the virtual machine related to the event;

identify new values of attributes of the virtual machine that changed as part of the event; and

update the event data for the virtual machine in the data store in view of the new values.

10. The system of claim 7, wherein the application is distinct from the object, and wherein the event data comprises values of attributes of the object.

11. The system of claim 7, wherein the processing device is further to provide an application programming interface to allow the applications to subscribe to the event.

12. The system of claim 7, wherein the application workflow comprises a required user action.

13. A non-transitory computer-readable storage medium including instructions that, when executed by a processing device, cause the processing device to:

receive, by the processing device executing an event server, event data from an agent associated with an object deployed in a cloud, wherein the event data comprises an identifier associated with the object, wherein the event server maintains a list of events associated with a plurality of applications;

detect an event related to the object in view of the event data;

add the event to the list of events maintained by the event server;

log the event data comprising the identifier associated with the object in a data store;

determine, in view of a subscription data, that an application of the plurality of applications subscribes to the event with respect to a plurality of attributes of the event data, wherein the subscription data is generated in accordance with an analysis of an application workflow;

responsive to determining that at least one of the plurality of attributes has changed;

execute the application workflow;

update the event data associated with the event in the data store in view of the changed at least one attribute value; and

provide the updated event data to the application.

14. The non-transitory computer-readable storage medium of claim 13, wherein the application workflow comprises a required user action.

15. The non-transitory computer-readable storage medium of claim 13, wherein the processing device is further to provide user access to the event data in the data store.

16. The non-transitory computer-readable storage medium of claim 13, wherein the object in the cloud comprises a virtual machine associated with the identifier in the cloud, wherein the agent is associated with the virtual machine, and wherein, to log the event data, the processing device is further to:

identify the virtual machine related to the event;

identify new values of attributes of the virtual machine that changed as part of the event; and

update the event data for the virtual machine in the data store in view of the new values.

17. The non-transitory computer-readable storage medium of claim 13, wherein the application is distinct from the object, and wherein the processing device is further to provide an application programming interface to allow the applications to subscribe to the event.