Method and system for concurrently executing multiple spooling systems in a networked computer system

• US 6,043,898 A
• Filed: 05/31/1996
• Issued: 03/28/2000
• Est. Priority Date: 05/31/1996
• Status: Expired due to Term

• Current Assignee: Oracle America, Inc. (Oracle Corporation)
• Original Assignee: Sun Microsystems Incorporated (Oracle Corporation)
• Inventors: Jacobs, Norman A.
• Primary Examiner(s): Popovici, Dov
• Application Number:
  US08/658,890
• Time in Patent Office: 1,397 Days
• Field of Search: 395/114, 395/112, 395/113, 395/101, 395/115, 395/116, 395/110, 395/500.44, 395/500.45, 358/407, 358/468, 358/1.15, 358/1.13, 358/1.14, 358/1.1, 358/1.16, 358/1.17, 358/1.11, 709/203, 709/213, 709/214, 709/215, 709/223, 710/8, 710/15, 710/52, 710/62, 710/64
• US Class Current: 358/1.15
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 67/565 Conversion or adaptation of application format or content adding application control or application functional data H04L67/561

Abstract

A system for concurrently executing multiple spooling systems having access to the same endpoint for communications in a networked computer system. The computer system includes a client and a server connected to one another via a network. The server includes a print protocol adaptor and a plurality of spooling systems. The print protocol adaptor includes a front-end and a plurality of translators. Each type of spooling system requires a corresponding translator. A plurality of printers is connected to the plurality of spooling systems. Each printer requires a corresponding spooling system. In order to request a print action, the client sends a print request to the server over the network. The print request is in a format specified by the print protocol the client is using. The front-end, based on the destination printer of the print request, determines to which translator the print request should be sent and then sends the print request to the appropriate translator. The translator translates the print request into a format specified by the print protocol the spooling system that handles print requests for the destination printer was designed using and understands, if necessary, and then sends the print request to the appropriate spooling system.

Claims

1. A method executed in a networked computer system for concurrently executing multiple spooling systems having access to the same endpoint for communications, the computer system including a client and a server connected to one another via a network, the server being connected to at least one printer, the method comprising the steps of:

receiving a print request from the client to complete an action in connection with a print job on a destination printer, the print request being in a format specified by a print protocol that the client understands;

determining a translator that corresponds to the destination printer

sending the print request to the translator corresponding to the destination printer,

translating the print request into a format specified by a print protocol that a spooling system corresponding to the destination printer understands; and

sending the translated print request to the spooling system corresponding to the destination printer.

2. The method of claim 1, wherein the step of receiving a print request from the client to complete an action in connection with a print job on a destination printer includes the step of receiving a print request in a format specified by an RFC 1179 LPD Protocol.

3. The method of claim 2, wherein the step of translating the print request into a format specified by a print protocol that the spooling system corresponding to the destination printer understands includes the step of translating the print request into a format specified by a print protocol other than the RFC 1179 LPD Protocol.

4. The method of claim 1, wherein the step of determining a translator that corresponds to the destination printer includes the step of determining the translator from a database that includes all of the possible destination printers and the corresponding translators.

5. The method of claim 1, further including the steps of:

processing the translated print request;

sending a return message to the translator;

translating the return message into the format specified by the print protocol that the client understands;

sending the translated return message to a front-end; and

sending the translated return message to the client.

6. A computer program product for concurrently executing multiple spooling systems having access to the same endpoint for communications in a networked computer system, the computer system including a client and a server connected to one another via a network, the server being connected to at least one printer, the computer product comprising:

computer readable program code configured to receive a print request from the client to complete an action in connection with a print job on a destination printer, the print request being in a format specified by a print protocol that the client understands;

computer readable program code configured to determine a translator that corresponds to the destination printer;

computer readable program code configured to send the print request to the translator corresponding to the destination printer;

computer readable program code configured to translate the print request into a format specified by a print protocol that a spooling system corresponding to the destination printer understands; and

computer readable program code configured to send the translated print request to the spooling system corresponding to the destination printer.

7. The computer program product of claim 6, wherein the computer readable program code configured to receive a print request from the client to complete an action in connection with a print job on a destination printer includes computer readable program code configured to receive a print request in a format specified by an RFC 1179 LPD Protocol.

8. The computer program product of claim 7, wherein the computer readable program code configured to translate the print request into a format specified by a print protocol that the spooling system corresponding to the destination printer understands includes computer readable program code configured to translate the print request into a format specified by a print protocol other than the RFC 1179 LPD Protocol.

9. The computer program product of claim 6, wherein the computer readable program code configured to determine a translator that corresponds to the destination printer includes computer readable program code configured to determine the translator from a database that includes all of the possible destination printers and the corresponding translators.

10. The computer program product of claim 6, further including:

computer readable program code configured to process the translated print request;

computer readable program code configured to send a return message to the translator;

computer readable program code configured to translate the return message into the format specified by the print protocol that the client understands;

computer readable program code configured to send the translated return message to a front-end; and

computer readable program code configured to send the translated return message to the client.

11. A system for concurrently executing multiple spooling systems having access to the same endpoint for communications in a networked computer, the system comprising:

a client connected to a network; and

a server connected to said network and connected to at least one printer, said server including;

at least one spooling system, each said spooling system corresponding to a printer; and

a print protocol adaptor, said print protocol adaptor including

a front-end configured to receive a print request from said client to complete an action in connection with a print job on a destination printer, the print request being in a format specified by a print protocol that said client understands,

at least one translator, each said translator corresponding to a type of said spooling system;

wherein said front-end is further configured to determine said translator that corresponds to said destination printer and send the print request to said translator corresponding to said destination printer; and

wherein said translator corresponding to said destination printer is configured to translate the print request into a format specified by a print protocol that said spooling system corresponding to said destination printer understands and send the translated print request to said spooling system corresponding to said destination printer.

12. The system of claim 11,

further including a database that includes all possible destination printers and corresponding translators;

and

wherein said front-end is further configured to determine said translator that corresponds to said destination printer from said database.

13. The system of claim 11,

wherein said spooling system corresponding to said destination printer is configured to process the translated print request and send a return message to said translator corresponding to said destination printer;

wherein said translator corresponding to said destination printer is further configured to translate the return message into the format specified by the print protocol that said client understands and send the translated return message to said front-end; and

wherein said front-end is further configured to send the translated return message to said client.