Hierarchically disassembling messages

• US 9,015,341 B2
• Filed: 03/28/2012
• Issued: 04/21/2015
• Est. Priority Date: 04/26/2010
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Inventors: Allen, Nicholas A., Taylor, John A., Batres, Stefan R., Li, Bin
• Primary Examiner(s): Maung, Zarni
• Application Number:
  US13/432,341
• Publication Number:
  US 20120246663A1
• Time in Patent Office: 1,119 Days
• Field of Search: 709206-207, 709/231, 709/236, 709/250
• US Class Current: 709/236
• CPC Class Codes: G06F 9/545 where tasks reside in different layers, e.g. user- and kernel-space
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers

Abstract

The present invention extends to methods, systems, and computer program products for hierarchically disassembling messages. The functionality of disassemblers and framers is decoupled such that framers for different types of messages can be utilized at the same level in a hierarchy without having to also change disassemblers. Virtually any level of disassembly is possible to address any corresponding level of message nesting. Disassembly can be performed on a per message or per session basis.

Claims

1. At a computer system, the computer system including one or more processors, system memory, and a messaging stack, the messaging stack having a hierarchical arrangement of components including a lower layer transport component, one or more disassembler components, and an upper layer application component, the computer system also including a framer factory for creating framers that can be contained within the one or more disassembler components to parse messages, a method for disassembling one or more messages, the method comprising:

an act of a disassembler component receiving a message from a component immediately below the disassembler component in the hierarchical arrangement of components, the message containing one or more nested messages within the message;

an act of the disassembler component receiving a framer for parsing the message;

an act of the disassembler component indicating the start of a session to a component above the disassembler component in the hierarchical arrangement of components;

for each of the one or more nested messages in the message;

an act of the parsing the message to identify the next nested message, from among the one or more nested messages, contained within the message; and

an act of the sending the identified next nested message to the session; and

an act of the disassembler indicating the end of the session to the component above the disassembler component subsequent to indicating the start of the session.

2. The method as recited in claim 1, further comprising an act of the disassembler component receiving an indication of a start of a second session from the component immediately below the disassembler component prior to receiving the message from the component immediately below the disassembler component, the second session between the disassembler component and the component immediately below the disassembler component.

3. The method as recited in claim 2, wherein the act of the disassembler component receiving a message comprises an act of the disassembler component receiving the message on the second session.

4. The method as recited in claim 3, further comprising:

an act of a disassembler component receiving a second message on the second session;

an act of the disassembler component sending the second message to the framer factory;

an act of the framer factory providing a second framer to the disassembler, the second framer for parsing the second message; and

for each of the one or more nested messages in the second message, including a last nested message;

an act of the second framer parsing the second message to identify the next nested message, from among the one or more nested messages, contained within the second message; and

an act of the disassembler component sending the identified next nested message to the session.

5. The method as recited in claim 4, further comprising an act of receiving an indication of the end of the second session from the component immediately below the disassembler component prior to the disassembler indicating the end of the session to the component immediately above the disassembler component.

6. The method as recited in claim 4, wherein the act of the disassembler component receiving the message on the second session comprises an act of the disassembler component receiving the message using a transaction;

and

wherein the act of the disassembler component receiving a second message on the second session comprises an act of the disassembler component receiving the second message using the transaction.

7. The method as recited in claim 1, wherein the act of a disassembler component receiving a message from a component immediately below the disassembler component in the hierarchical arrangement of components comprises an act of the disassembler component receiving a message with a transaction;

and

wherein for each of the one or more nested messages in the message the act of the disassembler component sending the identified next nested message to the session comprises an act of the disassembler component sending the identified next nested message to the session using the transaction.

8. The method as recited in claim 1, further comprising prior to the act of the disassembler component indicating the start of a session to the component immediately above the disassembler component in the hierarchical arrangement of components, an act of the component immediately above the disassembler component accepting a new session from the disassembler component.

9. The method as recited in claim 8, wherein the act of the component immediately above the disassembler component accepting a new session from the disassembler component comprises an act of the component immediately above the disassembler component accepting a new session using a transaction;

and

wherein for each of the one or more nested messages in the message the act of the disassembler component sending the identified next nested message to the session comprises an act of the disassembler component sending the identified next nested message to the session using the transaction.

10. A computer program product for use at a computer system, the computer system including one or more processors, system memory, and a messaging stack, the messaging stack having a hierarchical arrangement of components including a lower layer transport component, one or more disassembler components, and an upper layer application component, the computer system also including a framer factory for creating framers that can be contained within the one or more disassembler components to parse messages, the computer program product for implementing a method for disassembling one or more messages, the computer program product comprising one or more computer storage devices having stored thereon computer-executable instructions that, when executed at a processor, cause the computer system to perform the method, including the following:

receive a message from a component immediately below a disassembler component in the hierarchical arrangement of components, the message containing one or more nested messages within the message;

receive a framer for parsing the message;

indicate the start of a session to a component above the disassembler component in the hierarchical arrangement of components;

for each of the one or more nested messages in the message;

parse the message to identify the next nested message, from among the one or more nested messages, contained within the message; and

send the identified next nested message to the session; and

indicate the end of the session to the component above the disassembler component subsequent to indicating the start of the session.

11. The computer program product as recited in claim 10, further comprising computer-executable instructions that, when executed, cause the computer system to receive an indication of a start of a second session prior to receiving the message from the component immediately below the disassembler component, the second session between the disassembler component and the component immediately below the disassembler component.

12. The computer program product as recited in claim 11, wherein computer-executable instructions that, when executed, cause the computer system to receive a message comprise computer-executable instructions that, when executed, cause the computer system to receive the message on the second session.

13. The computer program product as recited in claim 12, the method further comprising computer-executable instructions that, when executed, cause the computer system to:

receive a second message on the second session;

send the second message to the framer factory;

provide a second framer to the disassembler, the second framer for parsing the second message; and

for each of the one or more nested messages in the second message, including a last nested message;

parse the second message to identify the next nested message, from among the one or more nested messages, contained within the second message; and

send the identified next nested message to the session.

14. The computer program product as recited in claim 13, the method further comprising computer-executable instructions that, when executed, cause the computer system to receive an indication of the end of the second session from the component immediately below the disassembler component prior to the disassembler indicating the end of the session to the component immediately above the disassembler component.

15. The computer program product as recited in claim 13, wherein computer-executable instructions that, when executed, cause the computer system to receive the message on the second session comprise computer-executable instructions that, when executed, cause the computer system to receive the message using a transaction;

and

wherein comprising computer-executable instructions that, when executed, cause the computer system to receive a second message on the second session comprise computer-executable instructions that, when executed, cause the computer system to receive the second message using the transaction.

16. The computer program product as recited in claim 10, wherein computer-executable instructions that, when executed, cause the computer system to receive a message from a component immediately below the disassembler component in the hierarchical arrangement of components comprise comprising computer-executable instructions that, when executed, cause the computer system to receive a message with a transaction;

and

wherein for each of the one or more nested messages in the message computer-executable instructions that, when executed, cause the computer system to send the identified next nested message to the session comprise computer-executable instructions that, when executed, cause the computer system to send the identified next nested message to the session using the transaction.

17. The computer program product of claim 10, wherein the computer program product includes the computer system and the one or more processor.

18. A system, the system comprising:

one or more processors;

system memory;

one of the one or more processors configuring a messaging stack, the messaging stack having a hierarchical arrangement of components, including;

a lower layer transport component;

one or more disassembler components in system memory, the one or more disassembler components above the lower layer transport component within the hierarchical arrangement of components; and

an upper layer application component in system memory, upper layer application component above the one or more disassembler components within the hierarchical arrangement of components;

a framer factory for creating framers that can be contained within the one or more disassembler components to parse messages;

each of the one or more disassembler components being configured to;

receive a message from a component immediately below the disassembler component, the message containing one or more nested messages within the message;

receive a framer from the framer factory for parsing the message;

indicate the start of a session to a component above the disassembler component in the hierarchical arrangement of components;

for each of the one or more nested messages in the message;

parse the message to identify the next nested message, from among the one or more nested messages, contained within the message; and

send the identified next nested message to the session; and

indicate the end of the session to the component above the disassembler component subsequent to indicating the start of the session.

19. The system as recited in claim 18, wherein the lower layer transport component is a transmission medium.

20. The system as recited in claim 18, wherein the upper layer application component is a software application.