System and method for communications in a distributed computing environment

• US RE43,375 E1
• Filed: 09/20/2007
• Issued: 05/08/2012
• Est. Priority Date: 11/30/1999
• Status: Expired due to Term

• Current Assignee: DataCloud Technologies, LLC (IP Investments Group LLC)
• Original Assignee: Reware Asset Group LLC (Intellectual Ventures LLC)
• Inventors: Glass, Graham W.
• Primary Examiner(s): BOUTAH, ALINA A
• Application Number:
  US11/858,878
• Time in Patent Office: 1,692 Days
• Field of Search: 709201-203, 719315-317
• US Class Current: 709/203
• CPC Class Codes: G06F 9/465 Distributed object oriented systems remote method invocation [RMI] G06F9/548
• CPC Class Codes: G06F 9/548 Object oriented; Remote method invocation [RMI] non-remote method invocation G06F9/449
• CPC Class Codes: H04L 12/00 Data switching networks interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units G06F13/00
• CPC Class Codes: H04L 67/28 for the provision of proxy services, e.g. intermediate processing or storage in the network network management provisions H04L41/00; network monitoring provisions H04L43/00; proxies for network security H04L63/0281; media manipulation, adaptation or conversion in real-time communications H04L65/601; protocol conversion H04L69/08
• CPC Class Codes: H04L 67/2809 for brokering negotiation of communication capabilities H04L69/24; e-commerce G06Q30/00
• CPC Class Codes: H04L 67/2895 Intermediate processing functionally located close to the data provider application, e.g. reverse proxies
• CPC Class Codes: H04L 67/40 Protocols for remote procedure calls [RPC] remote procedure calls G06F9/547
• CPC Class Codes: H04L 67/42 Protocols for client-server architectures access to replicated servers H04L67/1002

Abstract

A system for communications in a distributed computing environment is provided that includes an application layer (132), a proxy layer (134), a reference layer (136), and an object layer (138). The application layer (132) provides communications between an application (108) and an operating entity. The proxy layer (134) provides communications between the application (108) and a remote proxy (154). The remote proxy (154) is a local representative for a requested object (110) residing in an address space different from an address space in which the application (108) resides. The reference layer (136) provides communications between the remote proxy (154) and the requested object (110). The reference layer (136) includes communication protocol details to support transmission of messages across a network (106) linking the remote proxy (154) and the requested object (110). The object layer (138) includes the requested object (110). The object layer (138) maintains the separation of communication protocol details within the reference layer (136).

Claims

1. A system for communication in a distributed computing environment, comprising:

a client system having a client application;

a server system having a server object;

a network connecting the client system to the server system;

a client-side object request broker, embodied on a computer memory, executing on the client system and operable to provide client-side communication support for communications between the client application and the server object, the client-side object request broker divided into a plurality of communication layers including an application layer, a proxy layer, a reference layer, and an object layer, the reference layer operable to remove communication protocol details for accessing the server object from the proxy layer and place into the proxy layer a link to a reference object configured to manage the communication protocol details, the reference layer shielding the other layers from communication messaging protocol details used to communicate with the server object;

a server-side object request broker, embodied on the computer memory, executing on the server system and operable to provide server-side communication support for communications between the client application and the server object, the server-side object request broker having a different communication messaging protocol than the client-side object request broker.

6. The system of claim 1, wherein the application resides in the application layer.

7. The system of claim 1, wherein the operating entity interacts with the application in the application layer.

8. The system of claim 1, wherein the proxy layer shields the application layer from a location of the requested object and a communication messaging protocol used to communicate with the requested object.

9. The system of claim 1, wherein the reference layer shields the application layer, the proxy layer, and the object layer from communication messaging protocol details used to send messages between the application and the requested object.

10. The system of claim 1, wherein the requested object resides in the object layer.

11. The system of claim 1, further comprising a reference object residing in the reference layer, the reference object operable to provide the communication messaging protocol details used for communications with the requested object.

12. The system of claim 1, wherein

the application layer exists on a client system;

the proxy layer exists on the client system;

the reference layer exists on the client system and a server system; and

the object layer exists on the server system.

13. The system of claim 1, wherein the reference layer uses the communications messaging protocol of the server-side object request broker.

2. A distributed communications system, comprising:

an application layer, embodied on a computer memory, on a client system for executing applications and applets and for interacting with one or more users or operating entities, the application layer providing communications between applications or applets and users or other operating entities;

a proxy layer, embodied on the computer memory, on the client system for providing communications between the application or applet and a remote proxy, the remote proxy residing in the client system and representing a server object in a server system;

a reference layer, embodied on the computer memory, for providing communication messaging protocol specific links with server objects existing on other computers, the reference layer providing communications between the proxy layer and an object layer, the reference layer operable to remove communication protocol details for accessing server objects from the proxy layer, wherein the application layer and the proxy layer are not aware of communication details in the reference layer, the reference layer including a client-side object request broker executing on the client system and a server-side object request broker executing on the server system, the client-side object request broker having a different communication messaging protocol than the server-side object request broker; and

anthe object layer, embodied on the computer memory, for providing communications between the server object and the reference layer.

3. A method for communications in a distributed computing environment, comprising;

requesting a method invocation on a server object residing on a second computer from an application in an application layer residing on a first computer, the first computer and the second computer each including an object request broker having different communication messaging protocols;

generating a remote proxy on the first computer;

removing communication messaging protocol details for accessing the server object from the remote proxy;

placing the communication messaging protocol details into the a reference object;

forwarding the method invocation to the remote proxy in a proxy layer, the remote proxy locally representing the server object;

forwarding the method invocation to a reference layer where a the reference object encodes the method invocation into a communication messaging protocol used for communications with the server object, wherein the application and the remote proxy are not aware of the communication messaging protocol the reference layer;

transmitting the encoded method invocation through the reference layer where a second reference object residing on the server object'"'"'s computer decodes the method invocation into a format recognizable by the server object;

forwarding the decoded method invocation to the server object in an object layer; and

invoking an associated method on the server object.

4. The method of claim 3, further comprising:

forwarding a result of the method invocation on the server object to the application.

5. A system for communications in a distributed computing environment, comprising:

an application layer, embodied on a computer memory, for providing communications between an application and an operating entity;

a proxy layer for providing communications between the application in the application layer and a remote proxy in the proxy layer, the remote proxy being generated for locally representing a requested object for interactions with the application, the requested object residing in an address space different from an address space of the application;

a reference layer, embodied on the computer memory, for providing communications between the remote proxy and the requested object, the reference layer including a reference object having communication protocol details to support transmission of messages across a network linking the remote proxy and the requested object, the reference layer operable to remove the communication protocol details placed into the remote proxy for accessing the requested object and insert into the remote proxy a link to the reference object, wherein the application layer and the proxy layer are not aware of the communication protocol details in the reference layer, wherein the reference layer includes a client-side object request broker executing on a client system and a server-side object request broker executing on a server system and a network connecting the client system to the server system, the client-side object request broker and the server-side object request broker having non-compatible communication messaging protocols;

an object layer, embodied on the computer memory, including the requested object, the object layer providing a separation of communication messaging protocol details in the reference layer.

14. A computer-implemented method for communications in a distributed computing environment, comprising:

requesting a method invocation for a method of a server object on a server computer at a server system by an application on a client computer at a client system, the server system including a server-side object request broker having a different communication messaging protocol than a client-side object request broker on the client system;

generating a remote proxy on the client system to locally represent the server object;

forwarding the method invocation to the remote proxy on the client system;

forwarding the method invocation to a first reference object from the remote proxy, the first reference object residing on the client system;

removing communication messaging protocol details for accessing the server object from the remote proxy;

placing the communication messaging protocol details into the first reference object;

encoding the method invocation into a communication messaging protocol used for communications with the server object, the communication messaging protocol being identified by the first reference object, wherein the application and the remote proxy are not aware of the communication messaging protocol in the first reference object;

transmitting the encoded method invocation across a network;

receiving the encoded method invocation in a second reference object on the server system;

decoding the encoded method invocation into a format recognizable by the server system;

forwarding the decoded method invocation to the server object;

invoking the method on the server object.

15. The method of claim 14, further comprising forwarding a result on the method invocation on the server object to the application.

16. The method of claim 14, further comprising generating a remote proxy for the server object and placing the remote proxy on the client system.

17. The method of claim 14, wherein transmitting the encoded method invocation includes serially sending each byte of the encoded method invocation from the client system to the server system.

18. The method of claim 17, wherein receiving the encoded method invocation includes reconstituting the encoded method invocation from the serially received bytes.

19. A client system comprising:

a client application, embodied on a computer memory, that is executable by the client system in an application layer; and

a client-side object request broker, embodied on the computer memory, that is operable to support communications between the client application and a server object via a network, the client-side object request broker having a plurality of communication layers including a proxy layer and a reference layer, the reference layer operable to remove communication protocol details for accessing the server object from the proxy layer and insert into the proxy layer a link to a reference object configured to manage the communication protocol details such that the application layer and the proxy layer are not aware of the communication protocol details used to communicate with the server object, wherein the client-side object request broker uses a different communication protocol than a server-side object request broker that supports the server object.

20. The client system of claim 19 wherein the client-side object request broker resides in an address space that is different than an address space of the server-side object request broker.

21. The client system of claim 19 wherein the reference layer is operable to provide a link to the server object.

22. The client system of claim 19 wherein a location of the server object is hidden from one or more of the other layers using a remote proxy.

23. The client system of claim 19 wherein the proxy layer includes a remote proxy that is dynamically generated during run time.

24. A server comprising a server-side object request broker that:

is embodied on a computer memory;

resides in a different address space from a client system having client-side object request broker; and

is operable to provide access to a server object requested by the client-side object request broker to the client-side object request broker, the client-side object request broker configured to remove communication protocol details for accessing the server object from a proxy layer at the client system and replace the communication protocol details with a link to a reference layer at the client system to cause a client application and a remote proxy at the client system to be unaware that the server object was obtained from the different address space.

25. The server of claim 24 wherein the server-side object request broker is configured to communicate with the client-side object request broker via a network.

26. The server of claim 24 wherein the server-side object request broker uses a messaging protocol that is different than a messaging protocol used by the client-side object request broker.