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package Zaptel::Config::Gen;
#
# Written by Oron Peled <oron@actcom.co.il>
# Copyright (C) 2009, Xorcom
# This program is free software; you can redistribute and/or
# modify it under the same terms as Perl itself.
#
# $Id$
#
=head1 NAME
Zaptel::Config::Gen -- Wrapper class for configuration generators.
=head1 SYNOPSIS
use Zaptel::Config::Gen qw(is_true);
my $params = Zaptel::Config::Params->new('the-config-file');
my $gconfig = Zaptel::Config::Gen->new($params);
my $num = $gconfig->{'base_exten'};
my $overlap = is_true($gconfig->{'brint_overlap'});
$gconfig->dump; # For debugging
$gconfig->run_generator('system', {}, @spans);
=head1 DESCRIPTION
The constructor must be given an C<Zaptel::Config::Params> object.
The returned object contains all data required for generation in the
form of a hash.
The constructor maps the C<item()>s from the parameter object into semantic
configuration keys. E.g: the C<lc_country> item is mapped to C<loadzone> and
C<defaultzone> keys.
The actual generation is done by delegation to one of the generators.
This is done via the C<run_generator()> method which receive the
generator name, a generator specific options hash and a list of
span objects (from C<Zaptel::Span>) for which to generate configuration.
This module contains few helper functions. E.g: C<is_true()>, C<bchan_range()>.
=cut
require Exporter;
@ISA = qw(Exporter);
@EXPORT_OK = qw(is_true);
use strict;
# Parse values as true/false
sub is_true($) {
my $val = shift;
return undef unless defined $val;
return $val =~ /^(1|y|yes)$/i;
}
# Generate channel range strings from span objects
# E.g: "63-77,79-93"
sub bchan_range($) {
my $span = shift || die;
my $first_chan = ($span->chans())[0];
my $first_num = $first_chan->num();
my $range_start = $first_num;
my @range;
my $prev = undef;
die unless $span->is_digital();
foreach my $c (@{$span->bchan_list()}) {
my $curr = $c + $first_num;
if(!defined($prev)) {
$prev = $curr;
} elsif($curr != $prev + 1) {
push(@range, sprintf("%d-%d", $range_start, $prev));
$range_start = $curr;
}
$prev = $curr;
}
if($prev >= $first_num) {
push(@range, sprintf("%d-%d", $range_start, $prev));
}
return join(',', @range);
}
sub new($) {
my $pack = shift || die "$0: Missing package argument";
my $p = shift || die "$0: Missing parameters argument";
# Set defaults
my $fxs_default_start = $p->item('fxs_default_start');
my $fxo_default_start = $p->item('fxo_default_start');
my %default_context = (
FXO => $p->item('context_lines'),
FXS => $p->item('context_phones'),
IN => $p->item('context_input'),
OUT => $p->item('context_output'),
BRI_TE => $p->item('context_lines'),
BRI_NT => $p->item('context_phones'),
E1_TE => $p->item('context_lines'),
T1_TE => $p->item('context_lines'),
J1_TE => $p->item('context_lines'),
E1_NT => $p->item('context_phones'),
T1_NT => $p->item('context_phones'),
J1_NT => $p->item('context_phones'),
);
my %default_group = (
FXO => $p->item('group_lines'),
FXS => $p->item('group_phones'),
IN => '',
OUT => '',
BRI_TE => $p->item('group_lines'),
BRI_NT => $p->item('group_lines'),
E1_TE => $p->item('group_lines'),
T1_TE => $p->item('group_lines'),
J1_TE => $p->item('group_lines'),
E1_NT => $p->item('group_lines'),
T1_NT => $p->item('group_lines'),
J1_NT => $p->item('group_lines'),
);
my %default_zaptel_signalling = (
FXO => "fxs$fxo_default_start",
FXS => "fxo$fxs_default_start",
IN => "fxo$fxs_default_start",
OUT => "fxo$fxs_default_start",
);
my %default_zapata_signalling = (
FXO => "fxs_$fxo_default_start",
FXS => "fxo_$fxs_default_start",
IN => "fxo_$fxs_default_start",
OUT => "fxo_$fxs_default_start",
);
# First complex mapping
my $gconfig = {
PARAMETERS => $p,
'loadzone' => $p->item('lc_country'),
'defaultzone' => $p->item('lc_country'),
'context' => \%default_context,
'group' => \%default_group,
'zaptel_signalling' => \%default_zaptel_signalling,
'zapata_signalling' => \%default_zapata_signalling,
};
# Now add trivial mappings
my @trivial = qw(
base_exten
freepbx
fxs_immediate
bri_hardhdlc
bri_sig_style
r2_idle_bits
brint_overlap
pri_termtype
pri_connection_type
);
foreach my $k (@trivial) {
$gconfig->{$k} = $p->item($k);
}
bless $gconfig,$pack;
return $gconfig;
}
sub run_generator($$@) {
my $gconfig = shift || die;
my $name = shift || die "$0: Missing generator name argument";
my $genopts = shift || die "$0: Missing genopts argument";
ref($genopts) eq 'HASH' or die "$0: Bad genopts argument";
my @spans = @_;
my $module = "Zaptel::Config::Gen::$name";
#print STDERR "DEBUG: $module\n";
eval "use $module";
if($@) {
die "Failed to load configuration generator for '$name'\n";
}
my $cfg = $module->new($gconfig, $genopts);
$cfg->generate(@spans);
}
sub dump($) {
my $self = shift || die;
printf STDERR "%s dump:\n", ref $self;
my $width = 30;
foreach my $k (sort keys %$self) {
my $val = $self->{$k};
my $ref = ref $val;
#print STDERR "DEBUG: '$k', '$ref', '$val'\n";
if($ref eq '') {
printf STDERR "%-${width}s %s\n", $k, $val;
} elsif($ref eq 'SCALAR') {
printf STDERR "%-${width}s %s\n", $k, ${$val};
} elsif($ref eq 'ARRAY') {
#printf STDERR "%s:\n", $k;
my $i = 0;
foreach my $v (@{$val}) {
printf STDERR "%-${width}s %s\n", "$k\->[$i]", $v;
$i++;
}
} elsif($ref eq 'HASH') {
#printf STDERR "%s:\n", $k;
foreach my $k1 (keys %{$val}) {
printf STDERR "%-${width}s %s\n", "$k\->\{$k1\}", ${$val}{$k1};
}
} else {
printf STDERR "%-${width}s (-> %s)\n", $k, $ref;
}
}
}
1;
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