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dpavlin |
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# $Id: rrd-common.pm 692 2006-06-26 19:11:14Z nicolaw $ |
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# rrd-common.pm - Common shared module |
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# |
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# Copyright 2007 Nicola Worthington |
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# |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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# |
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############################################################ |
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# vim:ts=4:sw=4:tw=78 |
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package RRDBrowseCommon; |
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use 5.6.1; |
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use warnings; |
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use strict; |
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use Config::General qw(); |
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use vars qw(@ISA @EXPORT @EXPORT_OK); |
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require Exporter; |
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@ISA = qw(Exporter); |
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@EXPORT_OK = qw(slurp by_domain alpha_period list_dir graph_def read_graph_data); |
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@EXPORT = @EXPORT_OK; |
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# Slurp in a file from disk, yum yum |
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sub slurp { |
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my $rtn = $_[0]; |
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if (open(FH,'<',$_[0])) { |
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local $/ = undef; |
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$rtn = <FH>; |
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close(FH); |
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} |
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return $rtn; |
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} |
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# Sort by domain |
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sub by_domain { |
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sub split_domain { |
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local $_ = shift || ''; |
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if (/(.*)\.(\w\w\w+)$/) { |
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return ($2,$1); |
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} elsif (/(.*)\.(\w+\.\w\w)$/) { |
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return ($2,$1); |
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} |
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return ($_,''); |
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} |
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my @A = split_domain($a); |
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my @B = split_domain($b); |
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($A[0] cmp $B[0]) |
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|| |
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($A[1] cmp $B[1]) |
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} |
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# Sort by time period |
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sub alpha_period { |
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my %order = qw(daily 0 weekly 1 monthly 2 annual 3 3year 4); |
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($a =~ /^(.+)\-/)[0] cmp ($b =~ /^(.+)\-/)[0] |
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|| |
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$order{($a =~ /^.+\-(\w+)\./)[0]} <=> $order{($b =~ /^.+\-(\w+)\./)[0]} |
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} |
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# Return a list of items in a directory |
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sub list_dir { |
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my $dir = shift; |
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opendir(DH,$dir) || die "Unable to open file handle for directory '$dir': $!"; |
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my @items = grep(!/^\./,readdir(DH)); |
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closedir(DH) || die "Unable to close file handle for directory '$dir': $!"; |
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return @items; |
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} |
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# Pull out the most relevent graph definition |
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sub graph_def { |
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my ($gdefs,$graph) = @_; |
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return {} unless defined $graph; |
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my $rtn = {}; |
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for (keys %{$gdefs->{graph}}) { |
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my $graph_key = qr(^$_$); |
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if ($graph =~ /$graph_key/) { |
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$rtn = { %{$gdefs->{graph}->{$_}} }; |
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my ($var) = $graph =~ /_([^_]+)$/; |
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for my $key (keys %{$rtn}) { |
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$rtn->{$key} =~ s/\$1/$var/g; |
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} |
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last; |
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} |
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} |
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return $rtn; |
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} |
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# Read in the graph definition config file |
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sub read_graph_data { |
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my $filename = shift || undef; |
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my %config = (); |
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eval { |
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my $conf = new Config::General( |
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-ConfigFile => $filename, |
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-LowerCaseNames => 1, |
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-UseApacheInclude => 1, |
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-IncludeRelative => 1, |
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-MergeDuplicateBlocks => 1, |
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-AllowMultiOptions => 1, |
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-MergeDuplicateOptions => 1, |
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-AutoTrue => 1, |
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); |
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%config = $conf->getall; |
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}; |
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warn $@ if $@; |
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return \%config; |
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} |
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1; |
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