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Integrating CLIPS with External Systems: A Comprehensive Guide

This project overview details the integration of CLIPS (C Language Integrated Production System) with various external systems using VB and C++. It discusses two primary sources for integration: a free C++ source code from Source A and commercial options from Source B, which include ActiveX controls and DLLs. The guide covers how to utilize the CLIPS engine, execute commands, and define custom functions in C++. It emphasizes the ease of integrating CLIPS with ODBC for database interactions, and provides useful links for accessing these resources.

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Integrating CLIPS with External Systems: A Comprehensive Guide

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  1. CLIPS Integration with other Systems • My CSc 214 project (VB/CLIPS integration overview) • Two web sources • Available from source A (free): • C++ source code for CLIPS and MFC example • Available from source B: • ActiveX Control (not free) • OLE InProcess Server DLL (not free) • CLIPS DLL (free) • VB/High Level Lang. Interface DLL (free) • Works with ODBC Interface for CLIPS (free)

  2. Source A #include "ClipsEng.h" void main() { try { CLIPSEngine eng; eng.load("test.clp"); eng.reset(); eng.run(); } catch(CLIPSException *ex) { printf("CLIPS error: %s\n", ex->why()); delete ex; } } Also, can execute specific CLIPS commands: eng.execCommand(“(defrule rule1 (break-time 100) => (assert (breaker failure) ))”); Also, offers kind of custom callback mechanism (e.g., do something special when a particular rule fires): Define MyFunc1 in your C++ code eng.defineFunc("myfunc1",'i', MyFunc1, "MyFunc1");   (defrule r1 () … => (myfunc1) …)

  3. Source B • Prices range from free to $495 • ActiveX Control and OLE InProcess Server can be used through COM • CLIPS DLL provides methods that can be called • VB interface is file with declares (works with CLIPS DLL) • ODBC interface allows developer to issue SQL query against ODBC data source and have resulting rows asserted as facts into CLIPS program

  4. Conclusion • Easy to integrate CLIPS with other systems by taking advantage of CLIPS file I/O features • Viable products and source code that help you integrate CLIPS with other systems • Alternatives to JESS are available to offer non-Java OO development

  5. Resources • Source A: http://ee.tamu.edu/~xuxj/prog/download/dll/clipsdll.htm • Source B: http://ourworld.compuserve.com/homepages/marktoml/clipstuf.htm • ODBC Interface: http://www.monmouth.com/~km2580/CLIPODBC.htm

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