Method and apparatus for no-demand composition and teardown of service infrastructure

• US 20070294668A1
• Filed: 06/15/2006
• Published: 12/20/2007
• Est. Priority Date: 06/15/2006
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Mohindra, Ajay, Naik, Vijay K.
• Granted Patent: US 7,496,893 B2
• Time in Patent Office: Days
• US Class Current: 717/120
• CPC Class Codes: G06F 8/36 Software reuse
• CPC Class Codes: G06F 8/61 Installation
• CPC Class Codes: G06F 9/44505 Configuring for program initiating, e.g. using registry, configuration files
• CPC Class Codes: G06F 9/5038 considering the execution order of a plurality of tasks, e.g. taking priority or time dependency constraints into consideration scheduling strategies G06F9/4881 and subgroups

Abstract

A computer implemented method, apparatus, and computer usable program code for creating a composite service. Dependencies are identified utilizing a set of active objects used to manage services to form identified dependencies in response to receiving a request for the composite service. The identified dependencies specify requirements of the composite service. The composite service has multiple components. Components are identified for the composite service using the identified dependencies to form identified components. The composite service is created using the identified components.

Claims

1. A computer implemented method for creating a composite service, the computer implemented method comprising:

responsive to receiving a request for the composite service, identifying dependencies utilizing a set of active objects used to manage services to form identified dependencies, wherein the identified dependencies specify requirements of the composite service, and wherein the composite service has a plurality of components;

identifying components for the composite service using the identified dependencies to form identified components; and

creating the composite service using the identified components.

2. The computer implemented method of claim 1, wherein the identified dependencies indicate supporting services and supporting resources associated with the composite service, wherein the dependencies are identified using a dependency graph.

3. The computer implemented method of claim 1, further comprising:

detecting unfulfilled dependencies of the composite service.

4. The computer implemented method of claim 3, further comprising:

analyzing the unfulfilled dependencies of the composite service; and

matching available supporting services and available supporting resources with the composite service to satisfy the unfulfilled dependencies.

5. The computer implemented method of claim 4, wherein the matching step further comprises:

matching the available supporting services and the available supporting resources with the composite service completely or partially.

6. The computer implemented method of claim 2, further comprising:

planning use of the supporting services and the supporting resources to meet business goals; and

performing global optimization based on constraints.

7. The computer implemented method of claim 6, further comprising:

formulating the constraints based on the dependencies, requirements, available supporting services, available supporting resources, policies, component preferences, and business goals.

8. The computer implemented method of claim 1, further comprising:

responsive to the composite service being created, instantiating a new active object from an active template that represents a type of service represented by the composite service.

9. The computer implemented method of claim 1, further comprising:

composing a dependency graph identifying the dependencies.

10. The computer implemented method of claim 2, further comprising:

responding to changes of the supporting services and the supporting resources in a resource pool to continuously support the composite service.

11. The computer implemented method of claim 2, wherein the composite service, the supporting services, and the supporting resources are part of a distributed network, wherein active objects are stored in an active repository.

12. The computer implemented method of claim 1, further comprising steps for tearing down the composite service including:

responsive to receiving an event, utilizing a set of active objects used to manage the identified services to identify the identified components and identified dependencies, wherein the event is triggered by any of a policy, administrator command to tear down the composite service, or a component failure; and

tearing down the composite service systematically using the set of active objects so as to not affect other composite services provided by a system.

13. The computer implemented method of claim 2, further comprising:

deploying the composite service of the supporting services and the supporting resources by introducing a change in a state of the composite service; and

tearing down the composite service by introducing the change in the state of the composite service.

14. A data processing system comprising:

a bus system;

a communications system connected to the bus system;

a memory connected to the bus system, wherein the memory includes a set of instructions and a composite service; and

a processing unit connected to the bus system, wherein the processing unit executes the set of instructions to identify dependencies utilizing a set of active objects used to manage services to form identified dependencies in response to receiving a request for the composite service, wherein the identified dependencies specify requirements of the composite service, and wherein the composite service has a plurality of components;

identifies components for the composite service using the identified dependencies to form identified components; and

creates the composite service using the identified components.

15. A computer program product comprising a computer usable medium including computer usable program code for creating a composite service, the computer program product comprising:

computer usable program code responsive to receiving a request for the composite service, for identifying dependencies utilizing a set of active objects used to manage services to form identified dependencies, wherein the identified dependencies specify requirements of the composite service, and wherein the composite service has a plurality of components;

computer usable program code for identifying components for the composite service using the identified dependencies to form identified components; and

computer usable program code for creating the composite service using the identified components.

16. The computer program product of claim 15, further comprising:

computer usable program code for determining if the request can be handled by existing active objects;

computer usable program code responsive to a determination that the request cannot be handled by the existing active objects, for instantiating a new active object.

17. The computer program product of claim 15, further comprising:

computer usable program code for changing the composite service from a current state to a desired state by configuring the identified components.

18. The computer program product of claim 15, further comprising:

computer usable program code for forming the composite service from a dependency tree, wherein the identified components of the composite service are active objects and active templates within an active repository.

19. The computer program product of claim 18, wherein the active repository actively manages a set of composite services, wherein the set of composite services are managed by creating the set of composite services, updating the set of composite services, and decomposing the set of composite services based on demand.

20. A method for providing a composite service, the method comprising:

receiving a request from a client for the composite service;

responsive to receiving the request, identifying requirements of the composite service in a form of dependencies utilizing a set of active objects, wherein the dependencies specify requirements of the composite service;

identifying components for the composite service using the dependencies to form identified components;

creating the computer usable program code on computer usable medium for the composite service using the identified components; and

sending the computer usable medium to the client.