Manager level device/service arbitrator and methods

• US 7,313,547 B2
• Filed: 03/22/2002
• Issued: 12/25/2007
• Est. Priority Date: 03/22/2002
• Status: Expired due to Fees

• Current Assignee: Oracle America, Inc. (Oracle Corporation)
• Original Assignee: Sun Microsystems Incorporated (Oracle Corporation)
• Inventors: Decristo, Dianna L., Barr, Terrence, Razavi, Behfar, McWalter, William F., Mocek, Darryl J., Kelly, Lisa M.
• Primary Examiner(s): Fischer; Andrew J.
• Assistant Examiner(s): WINTER, JOHN M
• Application Number:
  US10/104,295
• Publication Number:
  US 20030182233A1
• Time in Patent Office: 2,104 Days
• Field of Search: 455/428, 455/12.1, 705/56, 705/51, 705/50, 505/1
• US Class Current: 705/51
• CPC Class Codes: B60R 2325/101 Bluetooth
• CPC Class Codes: B60W 2050/0005 Processor details or data handling, e.g. memory registers or chip architecture
• CPC Class Codes: B60W 2050/0045 using databus protocols
• CPC Class Codes: B60W 50/0098 Details of control systems ensuring comfort, safety or stability not otherwise provided for
• CPC Class Codes: B60W 50/06 Improving the dynamic response of the control system, e.g. improving the speed of regulation or avoiding hunting or overshoot
• CPC Class Codes: H04L 41/0893 Assignment of logical groups to network elements
• CPC Class Codes: H04L 41/0894 Policy-based network configuration management
• CPC Class Codes: H04L 41/5022 by giving priorities, e.g. assigning classes of service
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: H04L 67/564 Enhancement of application control based on intercepted application data
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 74/004 in the uplink, i.e. towards network

Abstract

A method for managing access to service entities (e.g., such as a devices, resources, and services, which are limited resources) is provided. The method includes requesting a priority level. In response, a priority object with an assigned priority level is returned. A service is then requested from a service manager, and the request includes data for carrying out the requested service and the priority object. The service manager is configured to identify at least one service entity that is required to carry out the requested service. Access is then requested to at least one service entity. A determination is made as to whether the at least one service entity is in-use. If at least one service entity is in-use, a further determination is made as to whether at least one service entity that is in-use has an assigned priority level that is higher than the assigned priority level, which is associated with a current request. The requester, such as a carlet, which has the higher assigned priority will gain control of the requested entity.

Claims

1. A method for managing access to service entities to enable use of the service entities under control of a plurality of computer applications to render a plurality of services that require the same first one of the service entities, a first of the computer applications consisting of a vehicle application to perform a non-emergency-warning service as the first service, the first service entity consisting of a vehicle component for performing the non-emergency-warning service for a driver of the vehicle, a second of the computer applications consisting of a vehicle-emergency-warning application to perform a vehicle-emergency-warning service as the second service, the vehicle component to be used by the vehicle-emergency-warning application to perform the vehicle-emergency-warning service to warn the vehicle driver of an urgent vehicle problem with respect to the vehicle;

the method comprising the operations of;

a first requesting of a first priority level, the first requesting being by the first application for rendering the first service, the first requesting being made to a first service manager that is specific to managing only the first service;

a second requesting of a second priority level, the second requesting being by the second application for rendering the second service, the second requesting being made to a second service manager that is specific to managing only the second service;

a first returning, the first returning being of a first priority object with a first assigned priority level, the first returning of the first priority level being by a first priority factory, the first priority factory being specific to the first service manager, the first returning being in response to the requesting of the first priority level, the first assigned priority level having a first value according to the importance of the first service relative to the importance of the second service;

a second returning, the second returning being of a second priority object with a second assigned priority level, the second returning being by a second priority factory, the second priority factory being specific to the second service manager, the second returning being in response to the second requesting, the second assigned priority level having a second value according to the importance of the second service relative to the importance of the first service;

a first making of a request, the first making requesting the first requested service from the first service manager, the first making being by the first application, the first making including data for carrying out the first service, the first making including the first priority object;

first identifying the first service entity as being required to carry out the first service, the first identifying being by the first service manager that is specific to managing only the first service;

a third requesting of access to the first service entity, the third requesting being by the first service manager, the third requesting including the returned first priority object, the returned first priority object including the first assigned priority level representing the priority of the first application for rendering the first service using the first service entity;

first determining that the first service entity is not in-use;

first granting access to the first service entity for the first application to control rendering the first service using the first service entity;

a second making of a request, the second making requesting the second service from the second service manager, the second making being by the second application, the second making including data for carrying out the second service, the second making including the second priority object;

second identifying the first service entity as being required to carry out the second service, the second identifying being by the second service manager that is specific to managing only the second service;

a fourth requesting of access to the first service entity, the fourth requesting being by the second service manager, the fourth requesting end including the returned second priority object, the fourth requesting including the second assigned priority level representing the priority of the second application for rendering the second service using the first service entity;

comparing the first value to the second value, the first value being of the first priority level that is in-use and under control of the first application with respect to the first service entity, the second value being of the second priority level requested to be in-use by the second application with respect to the first service entity for the second service;

a second determining that the first value exceeds the second value;

second granting of the request of the first making of a request, the second granting commanding the first application to continue rendering the first service using the first service entity and commanding the second application to not render the second service using the first service entity during the continued use;

a third determining that the first value is less than the second value;

discontinuing the rendering of the first service using the first service entity; and

third granting of the request of the second making of a request, the granting commanding the second application to render the second service using the first service entity.

2. A method as recited in claim 1, wherein each service manager is taken from the group consisting of a communications manager, a speech manager, a media manager, a user interface manager, and a telephony manager.

3. A method as recited in claim 1, wherein:

the first of the computer applications is a vehicle entertainment application to perform an entertainment service in the vehicle as the non-emergency-warning service that is the first service;

the first service entity consisting of the vehicle component is an audio speaker for playing audio entertainment for the driver of the vehicle;

the second of the computer applications is a vehicle diagnostics application to perform the vehicle-emergency-warning service as the second service;

the first service entity consisting of the vehicle component is the audio speaker also to be used by the vehicle diagnostics application to perform the vehicle-emergency-warning service to warn the vehicle driver of an urgent vehicle diagnostic problem with respect to the vehicle;

the importance of the first entertainment service relative to the importance of the second vehicle-emergency-warning service is such that the first priority factory that is specific to the first service manager returns the first priority level having the first value that is less than the second value of the second priority level returned by the second priority factory that is specific to the second service manager;

the discontinuing operation discontinues the rendering of the first entertainment service using the audio speaker; and

the third granting operation commands the vehicle diagnostics application to render the vehicle-emergency-warning service using the audio speaker as the first service entity.

4. A method as recited in claim 3, wherein:

each priority factory operates according to a first policy based on the importance of the respective service relative to the other services; and

the second and third determining operations operate according to a second policy based on the relative importance of the first and second values of the respective first and second priority levels of the requested respective specific first and second services.

5. A method as recited in claim 3, wherein the operation of second granting commands the vehicle entertainment application to render the first entertainment service using the audio speaker upon the discontinuing of the rendering of the second vehicle-emergency-warning service using the audio speaker.

6. A method as recited in claim 1, wherein:

the operations of first and second requesting of a priority level may request one value of the respective priority level; and

the operations of first and second returning of a priority object with an assigned priority level may each return the assigned priority level having a value different from the requested one value so that the respective assigned priority level embodied in the respective priority object is according to the importance of the respective requested service relative to the importance of all of the other ones of the services.

7. A method as recited in claim 1, wherein:

in the first identifying operation the first service manager identifies a plurality of service entities as being required to perform the first service; and

the operation of first determining that the first service entity is not in-use makes the first determining with respect to all of the plurality of service entities and determines that none of the plurality of service entities is in use; and

the first granting operation grants access to all of the plurality of service entities for performing the first service upon a determination that each of the plurality of service entities is not in use.

8. A method as recited in claim 7, wherein:

the first making of a request operation requesting the first service from the first service manager includes the first priority level of the first value, and the first value is applicable to all of the plurality of service entities required to carry out the first service;

the second making of a request operation identifies use of all of the plurality of service entities as being required to perform the second service;

the second making of a request operation includes the second assigned priority level of the second value, and the second value is applicable to all of the plurality of service entities required to carry out the second service;

the operation of third determining that the first value is less than the second value makes the determination with respect to the second value applicable to each of the plurality of service entities identified by the second service manager;

the operation of discontinuing discontinues the use of the first service entity to render the first service; and

the third granting operation commands the second application to render the second service using all of the plurality of service entities.

9. A method for managing access to service entities to enable use of the service entities under control of a plurality of computer applications to render a plurality of services that require the same first one of the service entities, a first of the computer applications consisting of a vehicle application to perform the first service, the first service entity consisting of a vehicle component for performing the first service for a driver of the vehicle, a second of the computer applications consisting of a vehicle-emergency-warning application to perform a vehicle-emergency-warning service as the second service, the vehicle component to be used also by the vehicle-emergency-warning application to perform the vehicle-emergency-warning service to warn the vehicle driver of an urgent vehicle problem with respect to the vehicle;

the method comprising the operations of;

a first requesting of a first priority level, the first requesting being by the first application for rendering the first service, the first requesting being made to a first service manager that is specific to managing only the first service for the driver of the vehicle;

a first returning, the first returning being of a first priority object with a first assigned priority level, the first returning of the first priority level being by a first priority factory, the first priority factory being specific to the first service manager, the first returning being in response to the requesting of the first priority level, the first assigned priority level having a first value according to the importance of the first service relative to the importance of the second vehicle-emergency-warning service;

a first making of a request, the first making requesting the first requested service from the first service manager, the first making being by the vehicle application, the first making including data for carrying out the first service, the first making including the first priority object;

first identifying the first service entity as being required to carry out the first service, the first identifying being by the first service manager that is specific to managing only the first service;

a second requesting of access to the first service entity, the third requesting being by the first service manager, the third requesting including the returned first priority object, the returned first priority object including the first assigned priority level representing the priority of the first application for rendering the first service using the first service entity;

performing the first service using the first service entity, the performing being in response to the second requesting, the performing being by the vehicle application;

a third requesting of a second priority level, the third requesting being by the second application for rendering the second vehicle-emergency-warning service, the third requesting being made to a second service manager that is specific to managing only the second vehicle-emergency-warning service to warn the driver;

a second returning, the second returning being of a second priority object with a second assigned priority level, the second returning being by a second priority factory, the second priority factory being specific to the second service manager, the second returning being in response to the third requesting, the second assigned priority level having a second value according to the importance of the second vehicle-emergency-warning service relative to the importance of the first service;

a second making of a request, the second making requesting the second vehicle-emergency-warning service from the second service manager, the second making being by the second application, the second making including data for carrying out the second vehicle-emergency-warning service, the second making including the second priority object;

second identifying the first service entity as being required to carry out the second vehicle-emergency-warning service, the second identifying being by the second service manager that is specific to managing only the second vehicle-emergency-warning service to warn the driver;

a fourth requesting of access to the first service entity, the fourth requesting being by the second service manager, the fourth requesting including the returned second priority object, the fourth requesting including the second assigned priority level representing the priority of the second application for rendering the second vehicle-emergency-warning service using the first service entity;

comparing the first value to the second value, the first value and the second value being as returned in the respective first and second returning operations;

determining that the first value is less than the second value;

commanding the vehicle application to discontinue using the first service entity to render the first service; and

granting of the request of the fourth requesting of access to the first service entity, the granting commanding the vehicle-emergency-warning application to render the second vehicle-emergency-warning service using the first service entity.

10. A method as recited in claim 9, further comprising the operation of:

registering the first service to be notified when the first service entity is available after the vehicle-emergency-warning application renders the second vehicle-emergency-warning service.

11. A method as recited in claim 9, wherein:

in the first identifying operation the first service manager identifies a plurality of service entities as being required to perform the first service;

the first making of a request operation includes the first priority level of the first value applicable to all of the plurality of service entities required to carry out the first service;

the performing operation performs the first service using the plurality of service entities, the performing being in response to the second requesting and being by the vehicle application;

the second identifying operation identifies use of at least one of the plurality of service entities as being required to perform the second vehicle-emergency-warning service;

the commanding operation commands the vehicle application to discontinue using all of the plurality of service entities to render the first service; and

the granting operation commands the vehicle-emergency-warning application to render the second vehicle-emergency-warning service using the at least one of the plurality of service entities.