System with user specified pattern definitions for matching input messages and associated decisions for conditionally responding to the input messages

• US 5,764,974 A
• Filed: 08/30/1995
• Issued: 06/09/1998
• Est. Priority Date: 08/30/1995
• Status: Expired due to Term

• Current Assignee: Unisys Corporation
• Original Assignee: Unisys Corporation
• Inventors: Walster, James Earl, Wiggins, Mark Anthony
• Primary Examiner(s): Black, Thomas G.
• Assistant Examiner(s): HOMERE, JEAN RAYMOND
• Application Number:
  US08/521,003
• Time in Patent Office: 1,014 Days
• Field of Search: 395/603, 395/604, 395/606, 395/21, 395/54
• US Class Current: 706/18
• CPC Class Codes: G06F 11/327 Alarm or error message display
• CPC Class Codes: G06F 3/04895 Guidance during keyboard input operation, e.g. prompting

Abstract

A system for automatically and variably responding to character-based messages is disclosed. With user specified input, a software tool creates a pattern database. The pattern database consists of pattern definitions for matching input messages and response definitions for automatically responding to matching input messages. Pattern definitions define criteria for matching an input message. The response definitions include function definitions and optional function decisions. Functions to be performed in response to a matching message are specified in the function definitions, wherein performance of the specified functions is dependent upon evaluation of the function decisions.

Claims

1. In a data processing system having a message processor for receiving message character strings and automatically performing predetermined functions according to the message character strings received, a method for creating a pattern database on a computer readable medium from a user specified data input stream that includes pattern definitions and response definitions, the pattern database for matching ones of the pattern definitions to ones of the response definitions, comprising the steps of:

reading the pattern definitions from the data input stream, wherein each of the pattern definitions is specified to match an associated one of the message character strings;

reading the response definitions from the data input stream, wherein each of the response definitions comprises one or more function definitions, wherein each of the response definitions further comprises one or more function decisions associated with specified ones of the function definitions, and wherein each of the response definitions further comprises one or more data structure definitions associated with specified ones of the function definitions and function decisions;

storing in the computer readable medium the pattern definitions and the response definitions, wherein said storing step comprises the steps (a) through (d);

(a) associating each of the pattern definitions with an associated one of the response definitions, the associated one of the response definitions defining the response to the associated message character string;

(b) recording in the computer readable medium that each of the pattern definitions are associated with one of the response definitions;

(c) recording in the computer readable medium that each of the function decisions are associated with specified ones of the finction definitions; and

(d) recording in the computer readable medium that each of the data structure definitions are associated with specified ones of the function decisions and function definitions.

2. The method of claim 1, wherein predetermined ones of the data structure definitions include time-out values and default values, and said storing step further comprises the step of associating the time-out values and default values with specified ones of the data structure definitions.

3. The method of claim 1, wherein

said storing step further comprises the steps of

storing each of the pattern definitions in an associated pattern record in a pattern database;

and

storing each of the response definitions in an associated action record in said pattern database; and

said associating step (a) further comprises the step of establishing references in each of said pattern records to an associated one of said action records.

4. The method of claim 3,

wherein said recording step (c further comprises the step of storing the function decisions and associated ones of the function definitions in associated ones of said action records.

5. In a data processing system having a message processor for receiving messages and automatically performing predetermined functions according to the message received, an article of manufacture for instructing a computer to create a pattern database on a computer-readable storage medium from a user specified data input stream the pattern database for matching messages, and in response thereto, executing predetermined response definitions, the article of manufacture comprising:

read means for instructing a computer to read pattern definitions from the data input stream and to read the response definitions from the data input stream, wherein each of said pattern definitions is specified to match a received message, and each of the response definitions comprises one or more function definitions, one or more function decisions associated with specified ones of said function definitions, and one or more data structure definitions associated with specified ones of said function definitions and said function decisions;

store means coupled to said read means for instructing the computer to store in the computer-readable storage medium said pattern definitions and the response definitions, wherein said store means comprises

association means for instructing the computer to associate each of said pattern definitions with a specified one of the response definitions, to associate said function decisions with specified ones of said function definitions, and to associate said data structure definitions with specified ones of said function decisions and said function definitions.

6. In a data processing system having a message processor for receiving message character strings and automatically performing predetermined function definitions according to the message character strings received, wherein a predefined pattern database contains pattern definitions specified to identify one or more of the received message character strings and response definitions associated with the pattern definitions, wherein each of the response definitions is associated with at least one of the pattern definitions and includes one or more function definitions and further includes function decisions and data structure definitions associated with specified ones of the function definitions, a method for processing a received message character strings comprising the steps of:

searching the pattern database for a pattern definition that matches the received message character string;

if the received message character string matches a matching pattern definition in said searching step, performing steps (a) through (c);

(a) obtaining a predetermined set of the function decisions, data structure definitions, and function definitions associated with the matching pattern definition;

(b) interpreting the function decisions to determine which of the predetermined set of function definitions to initiate; and

(c) conditioning initiation of the predetermined set of function definitions upon interpretation of the function decisions.

7. The method of claim 6, wherein one or more of the data structure definitions include time-out values and default values, and the method further comprises the step of automatically setting the value of a data structure to an associated one of said default values after expiration of a period of time specified by an associated one of said time-out values.

8. The method of claim 7, wherein said setting step is performed only if the value of a data structure having a time-out value has not been updated within a period of time that exceeds the time-out value.

9. The method of claim 6, wherein selected ones of the function definitions include a wait value, and said performing step comprises the step of waiting for a period of time specified by a wait value associated with one of said selected ones of the function definitions before initiating performance of said one of said selected ones of the function definitions.

10. The method of claim 6, further comprising the step of saving the value of a data structure, whereby said value is available after a pattern database is closed and subsequently re-opened.

11. The method of claim 6, wherein said function decisions include if-statements and each of the if-statements includes a function decision, wherein said interpreting step comprises the step of evaluating said function decision;

and

initiation of the function definitions in said conditioning step being dependent upon a result of said evaluating step.

12. The method of claim 11, wherein said function decisions include elseifstatements and each of the elseif-statements includes a function decision, and further comprising the step of evaluating a function decision of an elseif-statement that corresponds to said if-statement if evaluating a function decision of said corresponding if-statement is false.

13. The method of claim 12, wherein said function decisions include else-statements, and further comprising the step of executing a function definition associated with said else-statement if a result of evaluating a function decision of an elseif-statement that corresponds to said else-statement is false.

14. In a data processing system having a message processor for receiving and processing message character strings, wherein a predefined pattern database contains pattern definitions which identifyr one or more of the received message character strings and response definitions associated with the pattern definitions, wherein each of the response definitions is associated with at least one of the pattern definitions and includes one or more function definitions, the predefined pattern database further containing function decisions associated with predetermined ones of the function definitions, and one or more data structure definitions associated with the function decisions, an article of manufacture for instructing the data processing system to process a received message character string, comprising:

search means for instructing the data processing system to search the pattern database for a matching pattern definition that matches the received message character strng;

read means coupled to said search means for instructing the data processing system to read a predetermined one of the response definitions associated with said matching pattern definition, said predetermined one of the response definitions specifying a predetermined set of function decisions, data structure definitions, and function definitions associated with said matching pattern definition;

interpretation means coupled to said read means for instructing the data processing system to interpret said predetermined set of function decisions to determine which of said predetermined set of functions definitions are selected functions definitions; and

initiation means coupled to said interpretation means for instructing the data processing system to initiate execution of said selected function definitions as dictated by interpretation of said predetermined set of function decisions.

15. In a data processing system having computer readable storage and a message processor for receiving and processing input messages, an apparatus for automatically responding to the messages, comprising:

establishment means for establishing in the computer readable storage a plurality of pattern definitions to match one or more of the messages and for establishing in the computer readable storage a plurality of responses to the messages;

association means coupled to said establishment means for associating in the computer readable storage a predetermined one of said responses with each of said pattern definitions;

detection means for detecting a sequence of messages that matches a matching one of said pattern definitions;

response means coupled to said detection means for automatically and variably responding to said sequence of messages by executing a predetermined one of said responses associated with said matching one of said pattern definitions.

16. The apparatus of claim 15, wherein messages that comprise said sequence of messages contain the same data.

17. The apparatus of claim 15, wherein messages that comprise said sequence of messages contain varying data.

18. The apparatus of claim 15, further comprising wait means coupled to said response means for waiting for a predetermined period of time before responding.

19. The apparatus of claim 15, further comprising:

save means for saving in the computer readable storage a portion of an input message that matches a pattern definition; and

wherein said response means further comprises means for variably responding according to a saved portion of an input message.

20. The apparatus of claim 15, further comprising:

save means for saving in the computer readable storage a portion of a first input message; and

wherein said response means further comprises means for variably responding to a second input message based on a saved portion of said first input message.

21. In a data processing system having computer readable storage and a message processor for receiving and processing input message character strings, a computer implemented method for automatically responding to the input message character strings, comprising:

establishing in the computer readable storage a plurality of pattern definitions to match one or more of the input message character strings;

establishing in the computer readable storage a plurality of responses;

associating each of said pattern definitions in the computer readable storage with a predetermined one of said responses;

establishing function decisions that condition predetermined ones of said responses;

receiving one of the input message character strings;

identifying a matching pattern definition that matches said one of the input message character strings from said receiving step; and

conditionally responding to said one of the input message character strings from said identifying step according to evaluation of a function decision that conditions a response associated with said matching pattern definition.

22. In a data processing system having a message processor for receiving messages and automatically performing predetermined functions according to the message received and a database creation processor for creating a pattern database from a user specified data input stream that includes one or more pattern definitions and one or more response definitions, wherein each of the response definitions is associated with at least one of the pattern definitions and includes one or more definitions of ones of the predetermined functions, predetermined ones of the response definitions further including function decisions associated with predetermined ones of the functions, and other predetermined ones of the response definitions further including one or more data structure definitions associated with the function decisions, a method of operating the message processing system, comprising the steps of:

reading the pattern definitions from the data input stream;

reading the response definitions from the data input stream;

storing in a computer readable medium said pattern definitions and the response definitions, wherein said storing step comprises the steps (a) through (c);

(a) associating each of the pattern definitions with a predetermined one of the response definitions;

(b) associating the function decisions with specified ones of the functions;

(c) associating the data structure definitions with specified ones of the function decisions and functions;

opening the pattern database for pattern matching;

receiving a message;

searching the pattern database for a pattern definition that matches the message;

if the message matches a pattern definition, performing steps (d) through (f);

(d) obtaining the function decisions, data structure definitions, and functions associated with a matching pattern definition;

(e) interpreting the function decisions to determine which functions to initiate; and

(f) performing the functions as dictated by interpretation of the function decisions.