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Splitting huge XML Files into fixsized wellformed parts

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Old 03-17-2008
Splitting huge XML Files into fixsized wellformed parts
Hi,

I need to split xml-files with sizes greater than 2 gb into smaler chunks. As I dont want to end up with billions of files, I want those splitted files to have configurable sizes like 250 MB. Each file should be well formed having an exact copy of the header (and footer as the closing of the header) from the original file. Forthermore, a table should be generated were I can see, that the File X is seperated into Part N with timestamp:

The Original XML-Files look like this:

<?xml ...>
<Headerelement with some infos to be copied 1to1>
<OfferInfo>
<OfferID></OfferID>
...
</OfferInfo>
<OfferInfo>
<OfferID></OfferID>
...
</OfferInfo>
<OfferInfo>
<OfferID></OfferID>
...
</OfferInfo>
</Headerelement>

-------------------------
Protocol Table:

Orginalfilename|Name of PartN|Size of PartN|Timestamp

-------------------------

All in all I ended up with reading the XML processing docus of gawk,
but as it seems I am lacking some deeper programming skills.. Could
someone please help?

Thx
Malapha
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LEARN ABOUT DEBIAN

tv_split

TV_SPLIT(1p)						User Contributed Perl Documentation					      TV_SPLIT(1p)

NAME

       tv_split - Split XMLTV listings into separate files by date and channel.

SYNOPSIS

       tv_split --output TEMPLATE [FILE...]

DESCRIPTION

       Read XMLTV listings and split them into some number of output files.  The output file chosen for each programme is given by substitutions
       on the filename template supplied.  You can split listings by time and by channel.

       The TEMPLATE is a filename but substitutions are applied: first %channel is replaced with the id of a programme's channel, and then
       Date::Manip substitutions (which broadly follow date(1)) are applied based on the start time of each programme.	In this way each programme
       is written to a particular output file.	When an output file is created it will also contain all the channel elements from the input.

       One or more input files can be given; if more than one then they are concatenated in the same way as tv_cat.  If no input files are given
       then standard input is read.

EXAMPLE

       Use "tv_split --output %channel-%Y%m%d.xml" to separate standard input into separate files for each day and channel.  The files will be
       created with names like bbc1.bbc.co.uk-20020330.xml.

SEE ALSO

       Date::Manip(3).

AUTHOR

       Ed Avis, ed@membled.com.

perl v5.14.2							    2004-01-20							      TV_SPLIT(1p)