[Search for users] [Overall Top Noters] [List of all Conferences] [Download this site]

Conference pamsrc::objectbroker

Title:ObjectBroker - BEA Systems' CORBA
Notice:See note 3 for kits; note 5 for training; note 1134 for releases
Moderator:TLE::PARODId
Created:Tue Jul 11 1989
Last Modified:Thu Jun 05 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1413
Total number of notes:6391

1394.0. "Legacy Wrapping Example Code?" by TLE::PARODI () Wed Apr 16 1997 12:36

    
    We have a potential customer requesting example code of a wrapped
    legacy application. I'm checking our official reference sites and
    of course we have white papers to send.
    
    But if anyone can point me toward some actual code, that would be very
    helpful.
    
    Thanks,
    
    JP
T.RTitleUserPersonal
Name
DateLines
1394.1VAXCPU::michaudJeff Michaud - ObjectBrokerWed Apr 16 1997 14:5020
> We have a potential customer requesting example code of a wrapped
> legacy application.

	Well there are some factors that can influence your design
	choices.  Obviously the customer has a specific (or set of
	specific) legacy application(s) in mind, as well as OS
	platform(s).  If you could get some more details from the
	customer regarding their situation it would be useful.

	For example, if the legacy application only has a command
	line interface, and no programming interface (API), and
	the platform is VMS, then the ObjectBroker script server
	functionality could be used to wrap the application.  Or
	on a UNIX server you could also use the script server, but
	you may also be able to write a real OBB server and interface
	to the legacy application using something as simple as popen(3).

	Also search this and the other ObjectBroker notesfiles for
	"script server", there are lots of topics relating to the
	script server that can give you a feel for it.
1394.2it's always a different storyEMNTAL::STADELMANNSepp @ZUO 760-2609Thu Apr 17 1997 10:0013
    Did this custumor consider FBE and buying a workshop.
    
    Legacy Integration is almost a different issue. AS .-1 points out.
    API, direct DB access out of Method, CMD Line issued from a Method,
    Script Server for simple things, Screen Srapping if nothing else helps.
    
    Also if the Legacy to wrap is on a IBM MVS IMS DB2 system, maybe one
    has to deliver this using the the APPC Protocol API in order to setup a
    trabsaction for the DB2 system, i.e. calling APPC in the method and
    code something in RPG on the other side. -> Paolo Catholico migth help 
    you on such legacy integration @VBO .
    
    Sepp,
1394.3IRNBRU::JWESTERMANJeremy Westerman, MSG+ Middleware, Ayr.Thu Apr 17 1997 17:075
> Did this custumor consider FBE and buying a workshop.

Except that FBE has been sold off.

Jeremy.
1394.4thanksTLE::PARODIFri Apr 18 1997 12:5011
    
    Thanks for the replies, folks. We are aware that every such integration
    project is likely to have a lot of custom code. I suspect the customer
    just wants an existence proof. I'm hoping the bale of white papers
    I sent will satisfy his curiosity for awhile.
    
    Re: .3. Yes, FBE has gone to Linkvest, but Linkvest is still a valued
    partner. It may be that the right approach is to connect the customer
    to a Cushing or Linkvest...
    
    JP