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package XXV::MODULES::ROBOT;
use strict;
use Tools;
$SIG{CHLD} = 'IGNORE';
# This module method must exist for XXV
# ------------------
sub module {
# ------------------
my $obj = shift || return error('No object defined!');
my $args = {
Name => 'ROBOT',
Prereq => {
# 'WWW::Mechanize' => 'Handy web browsing in a Perl object ',
},
Description => gettext('This module register and run robots to fetch data from internet.'),
Status => sub{ $obj->status(@_) },
Preferences => {
active => {
description => gettext('Activate this service'),
default => 'y',
type => 'confirm',
required => gettext('This is required!'),
},
},
};
return $args;
}
# ------------------
sub new {
# ------------------
my($class, %attr) = @_;
my $self = {};
bless($self, $class);
$self->{charset} = delete $attr{'-charset'};
if($self->{charset} eq 'UTF-8'){
eval 'use utf8';
}
# paths
$self->{paths} = delete $attr{'-paths'};
# who am I
$self->{MOD} = $self->module;
# read the DB Handle
$self->{dbh} = delete $attr{'-dbh'};
# all configvalues to $self without parents (important for ConfigModule)
map {
$self->{$_} = $attr{'-config'}->{$self->{MOD}->{Name}}->{$_};
$self->{$_} = $self->{MOD}->{Preferences}->{$_}->{default} unless($self->{$_});
} keys %{$self->{MOD}->{Preferences}};
# Try to use the Requirments
map {
eval "use $_";
if($@) {
my $m = (split(/ /, $_))[0];
return panic("\nCouldn't load perl module: $m\nPlease install this module on your system:\nperl -MCPAN -e 'install $m'");
}
} keys %{$self->{MOD}->{Prereq}};
return $self;
}
# ------------------
sub saveRobot {
# ------------------
my $obj = shift || return error('No object defined!');
my $rname = shift || return error('No robot name defined!');
my $rsub = shift || return error('No robot subroutine defined!');
return error("$rname is not a code reference!'")
unless(ref $rsub eq 'CODE');
$obj->clean( $rname );
$obj->{robots}->{$rname} = $rsub;
return $obj->{robots}->{$rname};
}
# ------------------
sub register {
# ------------------
my $obj = shift || return error('No object defined!');
my $rname = shift || return error('No robot name defined!');
my @args = @_;
return error("$rname is not a Robot!'")
unless(ref $obj->{robots}->{$rname} eq 'CODE');
push(@{$obj->{jobs}->{$rname}}, [@args]);
}
# ------------------
sub start {
# ------------------
my $obj = shift || return error('No object defined!');
my $rname = shift || return error('No robot name defined!');
my $endcb = shift;
lg sprintf('Start Robots ....');
unless(exists $obj->{jobs}->{$rname}) {
return error("No Robot with name $rname is registered!");
}
# fork and forget
defined(my $child = fork()) or die "Couldn't fork: $!";
if($child == 0) {
$obj->{dbh}->{InactiveDestroy} = 1;
my $modM = main::getModule('MUSIC');
if($modM->{mdbh}) {
$modM->{mdbh}->{InactiveDestroy} = 1;
}
# create a new browser
my $count = 0;
foreach my $args (@{$obj->{jobs}->{$rname}}) {
my ($result, $error);
lg sprintf('robot callback %s started (%d)....', $rname, $count);
eval {
($result, $error) = &{$obj->{robots}->{$rname}}(@$args);
};
$error = $@ if($@);
if($result) {
lg sprintf("robot callback %s successfully ended!", $rname);
} else {
error sprintf("robot callback %s failed! : %s ", $rname, $error);
}
$count++;
}
&$endcb()
if(ref $endcb eq 'CODE');
exit(0);
}
}
# ------------------
sub clean {
# ------------------
my $obj = shift || return error('No object defined!');
my $rname = shift || return error('No robot name defined!');
delete $obj->{jobs}->{$rname};
}
# ------------------
sub result {
# ------------------
my $obj = shift || return error('No object defined!');
my $rname = shift || return error('No robot name defined!');
return $obj->{result}->{$rname};
}
# ------------------
sub status {
# ------------------
my $obj = shift || return error('No object defined!');
my $lastReportTime = shift || 0;
return
if($obj->{active} eq 'n');
return {
message => $obj->{result}
};
}
1;
|
