These may be worth peaking at:
http://jakarta.apache.org/commons/vfs/
http://jakarta.apache.org/commons/transaction/ (transaction access to
data in files)
In particularly... this may pique your interest. Problem is, it's still
in the sandbox, so they haven't had an official release or anything like
that. That being said, it looks like it's not brand new code, but
something donated by some outfit called Netcetera, so it ought to be
more mature than its sandbox status would indicate. That being said,
that link lists three other possibilities. Maybe one of these can be of
help to you.
http://jakarta.apache.org/commons/sandbox/csv/
Sanjiv Jivan wrote:
Seems fairly simple to read from this file format. Just open an
InputStream, read line by line looking for the header, trailer and
other details records. You could potentially also use regular
expressions to read entire records in one go but that would need you
to read the stream contents in memory and might not be efficient so
the line by line approach seems simple and efficient.
Basically just write a Java program to fit your needs. 30-40 lines of
code would probably get the job done in reading the sample format you
provided.
Sanjiv
On 12/20/06, *Josh* <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>
wrote:
The file itself consists of a header record, several different
detail records and a trailer record. The record type is driven by
the first two characters on each line. Each different record type
has a fixed length format.
Here is an very over simplified example:
810HDR Invoice 1972-05-12John Doe
810DTL 01-2304040200 $2.34
810DTL 02-4030400400 $1.34
810TOT 600 $1004
810END Steven
In this example, you can see that characters 4-6 (HDR, DTL, TOT,
END) drive the record type and each record type has a very
specific record layout.
------------------------------------------------------------------------
*From:* Sanjiv Jivan [mailto:[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>]
*Sent:* Wednesday, December 20, 2006 6:02 PM
*To:* users@appfuse.dev.java.net <mailto:users@appfuse.dev.java.net>
*Subject:* Re: [appfuse-user] OT: Suggestions for flat file library?
What's the data format of the file? CSV or something custom?
On 12/20/06, *Josh* <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:
Sorry guys,
I know this is old school, but I need to have the ability to parse
flat files. Any suggestions?
These flat files have a header, trailer and several types of
detail records. I would appreciate any comments/advice.
Best regards,
Joshua
