[rrd-developers] Import a RRD XML file

[Thodie]

Hi experts!

I'm an ABAP developer and my job is to import (parse) a XML file which is
generated by the RRDTool (and Nagios). See parts of the XML-file below. 
In my mind the XML-file looks a little bit strange. Especially that the date
and time are added as comment and not as tag. Also the values are displayed
exponential ("1.7500000000e+02 ") without any reason. I don't know the
RRDTool and Nagios. What is here the problem? The RRDTool or Nagios? Is
there an option to optimize the XML?

Kind regards 
Thodie 



<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE rrd SYSTEM "http://oss.oetiker.ch/rrdtool/rrdtool.dtd">
<!-- Round Robin Database Dump --><rrd>	<version> 0003 </version>
	<step> 60 </step> <!-- Seconds -->
	<lastupdate> 1279184004 </lastupdate> <!-- 2010-07-15 10:53:24 CEST -->

	<ds>
		<name> 1 </name>
		<type> GAUGE </type>
		<minimal_heartbeat> 8640 </minimal_heartbeat>
		<min> NaN </min>
		<max> NaN </max>

		<!-- PDP Status -->
		<last_ds> 175 </last_ds>
		<value> 4.2000000000e+03 </value>
		<unknown_sec> 0 </unknown_sec>
	</ds>

<!-- Round Robin Archives -->	<rra>
		<cf> AVERAGE </cf>
		<pdp_per_row> 1 </pdp_per_row> <!-- 60 seconds -->

		<params>
		<xff> 5.0000000000e-01 </xff>
		</params>
		<cdp_prep>
			<ds>
			<primary_value> 1.7500000000e+02 </primary_value>
			<secondary_value> 1.7500000000e+02 </secondary_value>
			<value> NaN </value>
			<unknown_datapoints> 0 </unknown_datapoints>
			</ds>
		</cdp_prep>
		<database>
			<!-- 2010-07-13 10:54:00 CEST / 1279011240 --> <row><v> 1.6196000000e+02
</v></row>
			<!-- 2010-07-13 10:55:00 CEST / 1279011300 --> <row><v> 1.6196000000e+02
</v></row>
			<!-- 2010-07-13 10:56:00 CEST / 1279011360 --> <row><v> 1.6196000000e+02
</v></row>
			<!-- 2010-07-13 10:57:00 CEST / 1279011420 --> <row><v> 1.6196000000e+02
</v></row>
			<!-- 2010-07-13 10:58:00 CEST / 1279011480 --> <row><v> 1.6196000000e+02
</v></row>
			<!-- 2010-07-13 10:59:00 CEST / 1279011540 --> <row><v> 1.6196000000e+02
</v></row>
			<!-- 2010-07-13 11:00:00 CEST / 1279011600 --> <row><v> 1.6196000000e+02
</v></row>
			<!-- 2010-07-13 11:01:00 CEST / 1279011660 --> <row><v> 1.6196000000e+02
</v></row>
			<!-- 2010-07-13 11:02:00 CEST / 1279011720 --> <row><v> 1.6196000000e+02
</v></row>
			<!-- 2010-07-13 11:03:00 CEST / 1279011780 --> <row><v> 1.6196000000e+02
</v></row>
			<!-- 2010-07-13 11:04:00 CEST / 1279011840 --> <row><v> 1.6597333333e+02
</v></row>
			<!-- 2010-07-13 11:05:00 CEST / 1279011900 --> <row><v> 1.6597333333e+02
</v></row>
			<!-- 2010-07-13 11:06:00 CEST / 1279011960 --> <row><v> 1.6597333333e+02
</v></row>
			<!-- 2010-07-13 11:07:00 CEST / 1279012020 --> <row><v> 1.6597333333e+02
</v></row>
			<!-- 2010-07-13 11:08:00 CEST / 1279012080 --> <row><v> 1.6597333333e+02
</v></row>
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