Method of executing on a station of a communication network a computer program represented in a markup language

• US 7,594,235 B2
• Filed: 07/02/2003
• Issued: 09/22/2009
• Est. Priority Date: 07/04/2002
• Status: Expired due to Fees

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Moreau, Jean-Jacques
• Primary Examiner(s): Truong; Lechi
• Application Number:
  US10/610,523
• Publication Number:
  US 20040040028A1
• Time in Patent Office: 2,274 Days
• Field of Search: 719/330, 719/328, 719/310, 709/203, 709/217, 715/324, 715/234
• US Class Current: 719/310
• CPC Class Codes: G06F 8/31 Programming languages or programming paradigms
• CPC Class Codes: G06F 9/547 Remote procedure calls [RPC]; Web services

Abstract

A method of execution on a station of a communication network of a computer program represented in a markup language comprises a step of reading a tag comprising the identification of an instruction; a step (S40) of identifying an electronic address associated with the tag comprising the identification of an instruction; a step (S41) of comparing the electronic address with the local address of the station; and, if the electronic address is different from the local address, a step (S43, S45) of sending a request to a server station of the network corresponding to the electronic address for obtaining the execution of the instruction, if the electronic address refers to the local address, executing the instruction at the local. Use in particular for executing a computer program distributed over different servers of a communication network.

Claims

1. A method of executing on a station of a communication network a computer program represented in a markup language using markup language tags, comprising steps of:

reading from said computer program a markup language tag in said markup language comprising identification of an instruction represented in said markup language, wherein said computer program comprising at least two instructions to be executed represented in said markup language and connected through a main function written in said markup language and having a corresponding main tag;

identifying an electronic address associated with said markup language tag comprising the identification of the instruction represented in said markup language;

comparing said electronic address with a local address of said station;

if said electronic address is different from said local address, sending a request to a server station of the communication network corresponding to said electronic address for obtaining an execution of said instruction represented in said markup language and executing said instruction at said server station after the requesting step;

if the electronic address refers to said local address of said station,

executing said instruction by said station based on obtained code received from said server station;

at the sending step, sending a request for obtaining a variable value for the markup language tag to said server station of the communication network, or sending a request for updating a variable to said server station of the communication network;

storing in a memory said variable value;

remote updating of a variable of said server station of the communication network based on said variable value stored in the memory in accordance with the request for updating.

2. The method of execution according to claim 1, wherein the electronic address is recorded as an attribute of said markup language tag comprising the identification of the instruction represented in said markup language.

3. The method according to claim 1, wherein at the sending step, a request for remote execution of a function is further sent to said server station of the communication network.

4. The method according to claim 3, further comprising a step of receiving an execution result of said function from the server station.

5. The method according to claim 1, wherein at the sending step, a request for obtaining a code of a function to be executed is further sent to said server station of the communication network.

6. The method according to claim 5, further comprising a step of receiving said code of the function to be executed and a step of executing the function by said station.

7. The method according to claim 6, further comprising a step of storing in memory said received code of the function.

8. The method according to claim 1, further comprising a step of receiving a response to the request from the server station and extracting said variable value.

9. The method according to claim 1, wherein at the sending step, a request for updating a variable is further sent to said server station of the communication network.

10. The method according to claim 1, wherein said computer program is represented in a markup language using a syntax of a markup language XML.

11. The method according to claim 1, wherein the communication network implements a method of communication of HTTP type between server stations of said network.

12. A system for executing on a station of a communication network a computer program represented in a markup language using markup language tags, comprising:

a processor; and

a memory for storing instructions which, when executed by the processor, perform steps of;

reading from said computer program a markup language tag in said markup language comprising identification of an instruction represented in said markup language, wherein said computer program comprising at least two instructions to be executed represented in said markup language and connected through a main function written in said markup language and having a corresponding main function tag;

identifying an electronic address associated with said markup language tag comprising the identification of the instruction represented in said markup language;

comparing said electronic address with a local address of the station; and

sending a request to a server station of the communication network corresponding to said electronic address for obtaining an execution of said instruction represented in said markup language when said electronic address is different from said local address and executing said instruction at the server station after the requesting step;

if the electronic address refers to said local address of said station, executing said instruction by said station based on obtained code received from said server station;

at the sending step, sending a request for obtaining a variable value for the markup language tag to said server station of the communication network, or sending a request for updating a variable to said server station of the communication network;

storing in a memory said variable value; and

remote updating of a variable of said server station of the communication network based on said variable value stored in the memory in accordance with the request for updating.

13. The system according to claim 12, further comprising receiving, from the server station, an execution result of a function or receiving code of a function to be executed.

14. The system according to claim 13, further comprising storing in memory the code of the functions to be executed.

15. The system according to claim 12, further comprising storing in memory of an extracted or updated variable value.

16. A computer-readable memory storing a computer-executable program that, when executed by a computer, performs a method for executing on a station of a communication network a computer program represented in a markup language using markup language tags, the method comprising:

reading from said computer program a markup language tag in said markup language comprising identification of an instruction represented in said markup language, wherein said computer program comprising at least two instructions to be executed represented in said markup language and connected through a main function written in said markup language and having a corresponding main tag;

identifying an electronic address associated with said markup language tag comprising the identification of the instruction represented in said markup language;

comparing said electronic address with a local address of said station;

if said electronic address is different from said local address, sending a request to a server station of the communication network corresponding to said electronic address for obtaining an execution of said instruction represented in said markup language and executing said instruction at said server station after the requesting step;

if the electronic address refers to said local address of said station,

executing said instruction by said station based on obtained code received from said server station;

at the sending step, sending a request for obtaining a variable value for the markup language tag to said server station of the communication network, or sending a request for updating a variable to said server station of the communication network;

storing in a memory said variable value;

remote updating of a variable of said server station of the communication network based on said variable value stored in the memory in accordance with the request for updating.

17. A method for executing on a station of a communication network a computer program represented in a markup language using markup language tags, said computer program comprising a main function written in said markup language and having a main function tag to be executed comprising at least one instruction represented in said markup language, said method comprising the following steps:

executing said main function of the computer program associated with the main function tag;

reading from said main function a markup language tag in said markup language comprising identification of an instruction represented in said markup language and connected to said main function written in said markup language;

identifying an electronic address associated with said markup language tag comprising the identification of an instruction represented in said markup language;

comparing said electronic address with the local address of said station;

if said electronic address is different from said local address, sending a request to a server station of the communication network corresponding to said electronic address for obtaining an execution of said instruction represented in said markup language and executing said instruction at said server station after the requesting step;

if the electronic address refers to said local address of said station,

executing said instruction by said station based on obtained code received from said server station;

at the sending step, sending a request for obtaining a variable value for the markup language tag to said server station of the communication network, and sending a request for updating a variable to said server station of the communication network;

storing in a memory said variable value; and

remote updating of a variable of said server station of the communication network based on said variable value stored in the memory in accordance with the request for updating.