how is SAP JCO written and registered

I am new to SAP

I have SAP suite (no IBM or other proprietary tools) and I need to get some data from a FTP file server and pass to SAP ABAP system.

How would my SAP ABAP system connect to java program in real time? I am looking for easy and straight forward path?
jgdvishnuSoftware ArchitectAsked:
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Mahesh BhutkarConnect With a Mentor Commented:
Not having much idea on this but I come across good article,
http://scn.sap.com/people/thorstenster/blog/2008/11/21/abap-calls-java-via-rfc-1-introduction
This may be helpful..
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jgdvishnuSoftware ArchitectAuthor Commented:
This makes use of SAP NetWeaver Composition Environment which I do not have. I assume this should work.
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BuckaConnect With a Mentor Commented:
You can SFTP to a SAP Application Server and create a Program to upload the data using 'OPEN_DATA_SET' Function Module.

FTP is for us an interface of last resort.

Perhaps your Java app can use  http requests.
You can create an SICF Node in SAP that has a handler using interface IF_HTTP_EXTENSION~HANDLE_REQUEST
It has worked fantastically for us.
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jgdvishnuConnect With a Mentor Software ArchitectAuthor Commented:
Given the requirement, I had to give up SAP JCO option as it was getting more complex.

I had to write native method to access the files and wrote through web service to SAP ABAP.
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jgdvishnuSoftware ArchitectAuthor Commented:
the solution is alternative to SAP JCO which was much simpler to me.
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