Data transfer in a multi-environment document management system access

• US 7,657,609 B2
• Filed: 07/05/2005
• Issued: 02/02/2010
• Est. Priority Date: 07/05/2005
• Status: Active Grant

• Current Assignee: SAP SE
• Original Assignee: SAP AG (SAP SE)
• Inventors: Hermes, Martin, Jordt, Nicolai, Klevenz, Stephan, Lerenc, Vedran
• Primary Examiner(s): Vaughn, Jr.; William C
• Assistant Examiner(s): Hussain; Farrukh
• Application Number:
  US11/175,557
• Publication Number:
  US 20070011274A1
• Time in Patent Office: 1,673 Days
• Field of Search: 709/217, 709/218, 709/219, 719/328, 719/315
• US Class Current: 709/218
• CPC Class Codes: G06F 9/547 Remote procedure calls [RPC]; Web services

Abstract

A system and method for accessing a document management system in a multi-environment processing system includes receiving a client call command from a web service proxy. The web service proxy, disposed on a client and running in conjunction with a client application. A web service end point, disposed in a web service framework receives the client call command. Through the web service end point and a class module, the client call command is converted for accessing the document management system. Retrieved data is temporarily stored in a memory location. The amount of data transfer allowed in a single data transfer is determined. Then, based on this information, multiple web services call are executed to incrementally transfer the data for the client application.

Claims

1. A system for transferring data objects across multi-environments, comprising:

a first device in a first processing environment including;

a document system, the document system having a memory device to store a plurality of data objects stored therein; and

a web service framework including a web service end point disposed in the first processing environment;

a second device in a second processing environment, wherein the second device is coupled to the first device via a communication network, the second processing environment including;

a client application;

a client convenience API coupled to the client application; and

a client proxy coupled to the client convenience API,

wherein the web service end point of the first device is adapted to;

responsive to receiving a call command generated from the client application for retrieving data from the document system, the client call including which elements of the data to be retrieved,

store the data in the memory device, wherein the memory device allows the web service framework to transfer the data in defined chunks;

determine a data transfer size; and

generate a token, the token including parameter data of a time at which the data transfer between the web service end point and the client proxy will occur, the data transfer size, and a lifetime of the token;

at the time of data transfer, execute multiple web service calls to incrementally transfer the elements of the data directly between the web service framework and the client proxy, each web service call transferring an incremental amount of data of the data transfer size,

wherein the web service calls are transparent to the client application, and

wherein the client proxy controls data chunking through the client convenience API.

2. The system of claim 1, wherein the lifetime of the token is determined based on at least one of the user'"'"'s command, a data object size, and the transfer data size between the web service end point and the client proxy.

3. The system of claim 1, wherein the client command includes information relating to which parts of the documents are to be transferred from the web service framework to the client proxy.

11. The system of claim 1, wherein the web service end point is adapted to include a plurality of classes for translating commands from a plurality of clients to the document system.

12. The system of claim 11, wherein each of the plurality of clients is in one of a plurality of environments and includes:

a web proxy communicatively connected to the web service end point; and

a client API coupled to a client application from which a user issues a command for at least one data object.

13. The system of claim 12, wherein the client API in one of the plurality of environments and the plurality of classes in the web service end point in the first environment are both capable of being configured by a generator framework at runtime, the generator framework being in an environment independent of the first environment or any one of the plurality of environments.

4. A method for transferring data objects among multi-environments, comprising:

responsive to a client call command from a client application in a second environment, the second environment including the client application, a client convenience API coupled to the client application, and a client proxy coupled to the client convenience API, the client call including which elements of the data to be retrieved, accessing a document management system through a web services end point disposed in a web service framework of a first environment;

retrieving data from the document management system;

storing the data in a memory device, wherein the memory device allows the web service framework to transfer the data in defined chunks;

determining a data transfer size;

generating a token including parameter data of a time at which the data transfer between the web service end point and the client proxy will occur, the data transfer size, and a lifetime of the token; and

at the time of data transfer, executing multiple web service calls to incrementally transfer the elements of the data directly between the web service framework and the one of the plurality of clients, each web service call transferring an incremental amount of data of the data transfer size,

wherein the web service calls are transparent to the client application, and

wherein the client proxy controls data chunking through the client convenience API.

5. The method of claim 4, wherein the data are incrementally transferred across a network.

6. The method of claim 4, wherein the document management system has a plurality of data objects stored therein.

7. The method of claim 6, further comprising:

receiving the client call command from a web proxy disposed in one of the plurality of clients.

8. The method of claim 7, further comprising:

determining which parts of the data are to be received by the client proxy; and

indicating in the client call command which parts of the documents are to be transferred from the web service framework to the client proxy.

9. The method of claim 4, wherein a lifetime of the token is determined based on at least one of the user'"'"'s command, a data object size, and the transfer data size between the web service end point and the one of the plurality of clients.

10. The method of claim 4 wherein the data transfer is responsive to a plurality of client call commands.

14. The method of claim 4, wherein the web service end point is adapted to include a plurality of classes for translating commands from a plurality of clients to the document system.

15. The method of claim 14, wherein each of the plurality of clients is in one of a plurality of environments and includes:

a web proxy communicatively connected to the web service end point; and

a client API coupled to a client application from which a user issues a command for at least one data object.

16. The method of claim 15, wherein the client API in one of the plurality of environments and the plurality of classes in the web service end point in the first environment are both capable of being configured by a generator framework at runtime, the generator framework being in an environment independent of the first environment or any one of the plurality of environments.