Method and apparatus for processing service requests in a service-oriented architecture

• US 20050080930A1
• Filed: 10/14/2003
• Published: 04/14/2005
• Est. Priority Date: 10/14/2003
• Status: Abandoned Application

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Joseph, Joshy
• Application Number:
  US10/685,205
• Publication Number:
  US 20050080930A1
• Time in Patent Office: Days
• US Class Current: 709/248
• CPC Class Codes: G06F 2209/506 Constraint
• CPC Class Codes: G06F 9/5038 considering the execution order of a plurality of tasks, e.g. taking priority or time dependency constraints into consideration scheduling strategies G06F9/4881 and subgroups
• CPC Class Codes: G06F 9/547 Remote procedure calls [RPC]; Web services
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/56 Provisioning of proxy services store-and-forward switching systems in data switching networks H04L12/54
• CPC Class Codes: H04L 67/566 Grouping or aggregating service requests, e.g. for unified processing

Abstract

In a service-oriented architecture, service requests and responses are processed in such a manner as to minimize the latency problems of existing protocols. Accumulated client service requests are packaged together with workflow information specifying the order of execution of the requests into a single message which is transmitted to the server side of the network connection. On the server side of the network connection, the individual requests are extracted from the message together with the workflow information and routed to the intended service providers, where they are executed in the order specified by the workflow information. Responses to the service requests are similarly packaged into a return message which is transmitted back to the client side, where the responses are extracted from the message and routed to the originating clients. In a preferred embodiment, individual requests and responses are conveyed as attachments to a Simple Object Access Protocol (SOAP) message.

Claims

1. In a service-oriented architecture in which a client issues a service request to a service provider and receives a response to said service request from said service provider, said client and said service provider constituting entities at first and second ends of a communication path, a method of processing said requests and responses comprising the steps of:

accumulating a plurality of such requests or responses at one end of said communication path for transmission to the entity at the other end of said communication path;

generating a single message containing the accumulated plurality of requests or responses; and

transmitting the generated message containing the accumulated plurality of requests or responses to the entity at the other end of said communication path.

2. The method of claim 1 in which the generated message is a SOAP message containing the accumulated plurality of requests or responses as SOAP attachments.

3. The method of claim 1 in which said message is transmitted from said first end of said communication path and contains requests, said method further comprising the steps of:

receiving a message from said second end of said communication path containing a plurality of responses to service requests generated by said service provider; and

extracting individual responses from the received message for processing at said first end of said communication path.

4. The method of claim 1 in which said message is transmitted from said first end of said communication path and contains requests, said method further comprising the steps of:

receiving said message at said second end of said communication path; and

extracting individual requests from the received message for processing at said second end of said communication path.

5. The method of claim 4 in which said message contains workflow information specifying an order of execution of the requests, said method further comprising the step of:

executing the requests in the order specified by said workflow information.

6. The method of claim 5 in which said workflow information specifies whether requests in said message are executed sequentially or in parallel, said requests being executed sequentially or in parallel as specified by said workflow information.

7. In a service-oriented architecture in which a client issues a service request to a service provider and receives a response to said service request from said service provider, said client and said service provider constituting entities at first and second ends of a communication path, a method of processing said requests and responses comprising the steps of:

receiving at one end of said communication path a message from the other end of said communication path containing a plurality of such requests or responses; and

extracting individual requests or responses from the received message for processing at said one end of said communication path.

8. The method of claim 7 in which said message is received at said second end of said communication path and contains requests together with workflow information specifying an order of execution of the requests, said method further comprising the step of:

executing the requests in the order specified by said workflow information.

9. In a service-oriented architecture in which a client issues a service request to a service provider and receives a response to said service request from said service provider, said client and said service provider constituting entities at first and second ends of a communication path, apparatus for processing said requests and responses comprising:

means for accumulating a plurality of such requests or responses at one end of said communication path for transmission to the entity at the other end of said communication path;

means for generating a single message containing the accumulated plurality of requests or responses; and

means for transmitting the generated message containing the accumulated plurality of requests or responses to the entity at the other end of said communication path.

10. The apparatus of claim 9 in which said message is transmitted from said first end of said communication path and contains requests, said apparatus further comprising:

means for receiving a message from said second end of said communication path containing a plurality of responses to service requests generated by said service provider; and

means for extracting individual responses from the received message for processing at said first end of said communication path.

11. The apparatus of claim 9 in which said message is transmitted from said first end of said communication path and contains requests, said apparatus further comprising:

means for receiving said message at said second end of said communication path; and

means for extracting individual requests from the received message for processing at said second end of said communication path.

12. The apparatus of claim 11 in which said message contains workflow information specifying an order of execution of the requests, said apparatus further comprising:

means for executing the requests in the order specified by said workflow information.

13. In a service-oriented architecture in which a client issues a service request to a service provider and receives a response to said service request from said service provider, said client and said service provider constituting entities at first and second ends of a communication path, apparatus for processing said requests and responses comprising:

means for receiving at one end of said communication path a message from the other end of said communication path containing a plurality of such requests or responses; and

means for extracting individual requests or responses from the received message for processing at said one end of said communication path.

14. The apparatus of claim 13 in which said message is received at said second end of said communication path and contains requests together with workflow information specifying an order of execution of the requests, said method further comprising the step of:

executing the requests in the order specified by said workflow information.

15. A program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine to perform method steps for processing requests and responses in a service-oriented architecture in which a client issues a service request to a service provider and receives a response to said service request from said service provider, said client and said service provider constituting entities at first and second ends of a communication path, said method steps comprising:

accumulating a plurality of such requests or responses at one end of said communication path for transmission to the entity at the other end of said communication path;

generating a single message containing the accumulated plurality of requests or responses; and

transmitting the generated message containing the accumulated plurality of requests or responses to the entity at the other end of said communication path.

16. The program storage device of claim 15 in which said message is transmitted from said first end of said communication path and contains requests, said method steps further comprising:

receiving a message from said second end of said communication path containing a plurality of responses to service requests generated by said service provider; and

extracting individual responses from the received message for processing at said first end of said communication path.

17. The program storage device of claim 16 in which said message is transmitted from said first end of said communication path and contains requests, said method further comprising the steps of:

receiving said message at said second end of said communication path; and

extracting individual requests from the received message for processing at said second end of said communication path.

18. The program storage device of claim 17 in which said message contains workflow information specifying an order of execution of the requests, said method further comprising the step of:

executing the requests in the order specified by said workflow information.

19. A program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine to perform method steps for processing requests and responses in a service-oriented architecture in which a client issues a service request to a service provider and receives a response to said service request from said service provider, said client and said service provider constituting entities at first and second ends of a communication path, said method steps comprising:

receiving at one end of said communication path a message from the other end of said communication path containing a plurality of such requests or responses; and

extracting individual requests or responses from the received message for processing at said one end of said communication path.

20. The method of claim 19 in which said message is received at said second end of said communication path and contains requests together with workflow information specifying an order of execution of the requests, said method further comprising the step of:

executing the requests in the order specified by said workflow information.