nes-proj/tools/rimecollect-rrd/collect2rrd.pl

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#!/usr/bin/perl -w
use strict;
my $verbose = 1;
####
# Feed data on stdin from a RIME collect sink
#
# Enters data into rimeaddr.rrd
#
# Creates rimeaddr.rrd from a template if data shows up from a source and
# rimeaddr.rrd doesn't exist
#
# default template is read from default.rrdtmpl
#
# if rimeaddr.rrdtmpl exisits, that is used instead.
####
#
# Templates are shell scripts that create the desired rrd
#
####
# Data messages are in the form of:
#
# Sink got message from 1.0, seqno 109, hops 0: len 12 'GPIO29-High'
#
#
my $datapattern = 'Sink got message from ([\d\.]+), seqno \d+, hops \d+: len \d+ \'([\w\d]+-[\w\d]+)\'';
sub rrdcreate {
my ($newrrd_filename, $tmpl_filename) = @_;
open FILE, "$tmpl_filename" or die $!;
my $tmpl = <FILE>;
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chomp $tmpl;
print "using template $tmpl found in $tmpl_filename\n" if $verbose;
`rrdtool create $newrrd_filename $tmpl`;
}
while(<>) {
next if($_ !~ /$datapattern/);
print("rimeaddr $1 data $2\n") if $verbose;
my ($ds,$data) = split(/-/,$2);
print("ds: $ds, data: $data\n") if $verbose;
if(-e "$1.rrd") {
# an rrd already exists for this device
# do an update
`rrdtool update $1.rrd -t $ds N:$data`
} else {
# an rrd for this device doesn't exist yet
# find a template and make it
my $tmpl = "DS:speed:COUNTER:600:U:U RRA:AVERAGE:0.5:6:10";
print "creating new rrd $1.rrd... " if $verbose;
if(-e "$1.rrdtmpl") {
rrdcreate("$1.rrd","$1.rrdtmpl");
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`rrdtool update $1.rrd -t $ds N:$data`
} elsif(-e "default.rrdtmpl") {
rrdcreate("$1.rrd","default.rrdtmpl");
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`rrdtool update $1.rrd -t $ds N:$data`
} else {
print "can't create rrd for $1: no template found\n";
}
}
}