icinga2/tools/configconvert/Icinga2/ExportIcinga2Cfg.pm

=pod
/******************************************************************************
 * Icinga 2                                                                   *
 * Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/)        *
 *                                                                            *
 * This program is free software; you can redistribute it and/or              *
 * modify it under the terms of the GNU General Public License                *
 * as published by the Free Software Foundation; either version 2             *
 * of the License, or (at your option) any later version.                     *
 *                                                                            *
 * This program is distributed in the hope that it will be useful,            *
 * but WITHOUT ANY WARRANTY; without even the implied warranty of             *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              *
 * GNU General Public License for more details.                               *
 *                                                                            *
 * You should have received a copy of the GNU General Public License          *
 * along with this program; if not, write to the Free Software Foundation     *
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.             *
 ******************************************************************************/
=cut


package Icinga2::ExportIcinga2Cfg;

use strict;

use Data::Dumper;
use File::Find;
use Storable qw(dclone);

use feature 'say';

#use Icinga2;
use Icinga2::Utils;

#our $dbg_lvl = 1;

# XXX figure a better way for \t count printing, making dumps more modular
# XXX sort macros and linked hostservices by name

################################################################################
# Helpers
################################################################################

sub open_cfg_file {
    my $file = shift;
    my $FH;

    say "writing file '$file'...\n";
    open($FH, ">".$file);

    if (!-w $FH) {
        print "ERROR: cannot write file '$file'. Check permissions!\n";
    }

    return $FH;
}

sub close_cfg_file {
    my $FH = shift;

    close($FH);
}

sub add_header {
    my $icinga2_cfg = shift;

    dump_config_line($icinga2_cfg, "/******************************************************************************");
    dump_config_line($icinga2_cfg, " * GENERATED BY ICINGA2 CONVERSION SCRIPT");
    dump_config_line($icinga2_cfg, " * (C) 2013 Icinga Development Team");
    dump_config_line($icinga2_cfg, " * http://www.icinga.org");
    dump_config_line($icinga2_cfg, " ******************************************************************************/");
}

sub dump_config_line {
    my $icinga2_cfg = shift;
    my $line = shift;
    my $dbg_lvl = $icinga2_cfg->{'__I2EXPORT_DEBUG'};

    if ($dbg_lvl) {
        print $line. "\n";
    }

    print { $icinga2_cfg->{'__I2EXPORT_FH'} } "$line\n";
}

sub start_object_type_config_dump {
    my $icinga2_cfg = shift;
    my $cfg_type = shift;

    $icinga2_cfg->{'__I2EXPORT_FH'} = open_cfg_file($icinga2_cfg->{$cfg_type});
    add_header($icinga2_cfg);
}

sub end_object_type_config_dump {
    my $icinga2_cfg = shift;

    close_cfg_file($icinga2_cfg->{'__I2EXPORT_FH'});
}

################################################################################
# DUMP ALL OBJECTS 2.x
################################################################################


sub dump_cfg_obj_2x {
    my $icinga2_cfg = shift;
    my $cfg_obj_2x = shift;

    dump_hosts_2x($icinga2_cfg, $cfg_obj_2x);
    dump_services_2x($icinga2_cfg, $cfg_obj_2x);
    dump_users_2x($icinga2_cfg, $cfg_obj_2x);
    dump_notifications_2x($icinga2_cfg, $cfg_obj_2x);
    dump_timeperiods_2x($icinga2_cfg, $cfg_obj_2x);
    dump_groups_2x($icinga2_cfg, $cfg_obj_2x);
    dump_commands_2x($icinga2_cfg, $cfg_obj_2x);

}
sub dump_hosts_2x {
    my $icinga2_cfg = shift;
    my $cfg_obj_2x = shift;

    start_object_type_config_dump($icinga2_cfg, 'hosts');
    #say Dumper($icinga2_cfg);

    foreach my $host_2x_key (keys %{@$cfg_obj_2x{'host'}}) {
        my $host_2x = @$cfg_obj_2x{'host'}->{$host_2x_key};
        #say Dumper($host_2x);
        #say "==============\n";
        # function decides itsself if object or template
        Icinga2::ExportIcinga2Cfg::dump_host_2x($icinga2_cfg, $host_2x);
    }

    end_object_type_config_dump($icinga2_cfg);
}

sub dump_services_2x {
    my $icinga2_cfg = shift;
    my $cfg_obj_2x = shift;

    start_object_type_config_dump($icinga2_cfg, 'services');

    foreach my $service_2x_key (keys %{@$cfg_obj_2x{'service'}}) {
        my $service_2x = @$cfg_obj_2x{'service'}->{$service_2x_key};

        Icinga2::ExportIcinga2Cfg::dump_service_2x($icinga2_cfg, $service_2x);
    }

    end_object_type_config_dump($icinga2_cfg);
}

sub dump_users_2x {
    my $icinga2_cfg = shift;
    my $cfg_obj_2x = shift;

    start_object_type_config_dump($icinga2_cfg, 'users');

    foreach my $user_2x_key (keys %{@$cfg_obj_2x{'user'}}) {
        my $user_2x = @$cfg_obj_2x{'user'}->{$user_2x_key};

        Icinga2::ExportIcinga2Cfg::dump_user_2x($icinga2_cfg, $user_2x);
    }

    end_object_type_config_dump($icinga2_cfg);
}

sub dump_notifications_2x {
    my $icinga2_cfg = shift;
    my $cfg_obj_2x = shift;

    start_object_type_config_dump($icinga2_cfg, 'notifications');

    foreach my $notification_2x_key (keys %{@$cfg_obj_2x{'notification'}}) {
        my $notification_2x = @$cfg_obj_2x{'notification'}->{$notification_2x_key};

        Icinga2::ExportIcinga2Cfg::dump_notification_2x($icinga2_cfg, $notification_2x);
    }

    end_object_type_config_dump($icinga2_cfg);
}


sub dump_timeperiods_2x {
    my $icinga2_cfg = shift;
    my $cfg_obj_2x = shift;

    start_object_type_config_dump($icinga2_cfg, 'timeperiods');

    foreach my $timeperiod_2x_key (keys %{@$cfg_obj_2x{'timeperiod'}}) {
        my $timeperiod_2x = @$cfg_obj_2x{'timeperiod'}->{$timeperiod_2x_key};

        Icinga2::ExportIcinga2Cfg::dump_timeperiod_2x($icinga2_cfg, $timeperiod_2x);
    }

    end_object_type_config_dump($icinga2_cfg);
}

# XXX maybe split later
sub dump_groups_2x {
    my $icinga2_cfg = shift;
    my $cfg_obj_2x = shift;

    start_object_type_config_dump($icinga2_cfg, 'groups');

    foreach my $hostgroup_2x_key (keys %{@$cfg_obj_2x{'hostgroup'}}) {
        my $hostgroup_2x = @$cfg_obj_2x{'hostgroup'}->{$hostgroup_2x_key};

        Icinga2::ExportIcinga2Cfg::dump_group_2x($icinga2_cfg, $hostgroup_2x);
    }

    foreach my $servicegroup_2x_key (keys %{@$cfg_obj_2x{'servicegroup'}}) {
        my $servicegroup_2x = @$cfg_obj_2x{'servicegroup'}->{$servicegroup_2x_key};

        Icinga2::ExportIcinga2Cfg::dump_group_2x($icinga2_cfg, $servicegroup_2x);
    }

    foreach my $usergroup_2x_key (keys %{@$cfg_obj_2x{'usergroup'}}) {
        my $usergroup_2x = @$cfg_obj_2x{'usergroup'}->{$usergroup_2x_key};

        Icinga2::ExportIcinga2Cfg::dump_group_2x($icinga2_cfg, $usergroup_2x);
    }

    end_object_type_config_dump($icinga2_cfg);
}

sub dump_commands_2x {
    my $icinga2_cfg = shift;
    my $cfg_obj_2x = shift;

    start_object_type_config_dump($icinga2_cfg, 'commands');

    foreach my $command_2x_key (keys %{@$cfg_obj_2x{'command'}}) {
        my $command_2x = @$cfg_obj_2x{'command'}->{$command_2x_key};

        Icinga2::ExportIcinga2Cfg::dump_command_2x($icinga2_cfg, $command_2x);
    }

    end_object_type_config_dump($icinga2_cfg);
}

################################################################################
# DUMP OBJECT 2.x
################################################################################


sub dump_service_2x {
    my $icinga2_cfg = shift;
    my $service_2x = shift;
    my $object_type = "object"; # object or template
    my $service_description = $service_2x->{__I2CONVERT_SERVICEDESCRIPTION};

    # only dump templates, the objects will be directly created in host objects
    if ($service_2x->{__I2CONVERT_IS_TEMPLATE} == 0) {
        return;
    }
    #say Dumper($host_2x);
    if ($service_2x->{__I2CONVERT_IS_TEMPLATE} == 1) {
        $object_type = "template";
        $service_description = $service_2x->{'__I2CONVERT_TEMPLATE_NAME'};
    }

    ####################################################
    # start, inherit from template?
    ####################################################
    if (defined($service_2x->{'__I2CONVERT_USES_TEMPLATE'}) && $service_2x->{'__I2CONVERT_USES_TEMPLATE'} == 1) {
        my $service_2x_templates = join '", "', @{$service_2x->{'__I2CONVERT_TEMPLATE_NAMES'}};
        dump_config_line($icinga2_cfg, "$object_type Service \"$service_description\" inherits \"$service_2x_templates\" {");
    } else {
        dump_config_line($icinga2_cfg, "$object_type Service \"$service_description\" {");
    }

    ####################################################
    # display_name
    ####################################################
    if(defined($service_2x->{'display_name'})) {
        dump_config_line($icinga2_cfg, "\tdisplay_name = \"$service_2x->{'display_name'}\",");
    }

    ####################################################
    # macros
    ####################################################

    if(defined($service_2x->{'__I2CONVERT_MACROS'}) && $service_2x->{'__I2CONVERT_MACROS'} != 0) {
        dump_config_line($icinga2_cfg, "\tmacros = {");
        foreach my $macro_key (keys %{$service_2x->{'__I2CONVERT_MACROS'}}) {
            dump_config_line($icinga2_cfg, "\t\t$macro_key = \"$service_2x->{'__I2CONVERT_MACROS'}->{$macro_key}\",");
        }
        dump_config_line($icinga2_cfg, "\t},");
    }

    dump_config_line($icinga2_cfg, "");

    ####################################################
    # check command
    ####################################################
    if(defined($service_2x->{'__I2_CONVERT_CHECKCOMMAND_NAME'})) {
        dump_config_line($icinga2_cfg, "\tcheck_command = \"$service_2x->{'__I2_CONVERT_CHECKCOMMAND_NAME'}\",");
    }

    ####################################################
    # event command
    ####################################################
    if(defined($service_2x->{'__I2_CONVERT_EVENTCOMMAND_NAME'})) {
        dump_config_line($icinga2_cfg, "\tevent_command = \"$service_2x->{'__I2_CONVERT_EVENTCOMMAND_NAME'}\",");
    }

    ####################################################
    # servicegroups
    ####################################################
    if(defined($service_2x->{'servicegroups'}) && scalar(@{$service_2x->{'servicegroups'}}) > 0) {
        #say Dumper($service_2x->{'servicegroups'});
        my $servicegroups = join '", "', @{$service_2x->{'servicegroups'}};
        if ($service_2x->{'__I2_CONVERT_SG_ADD'} == 1) {
            dump_config_line($icinga2_cfg, "\tservicegroups += [ \"$servicegroups\" ],");
        } else {
            dump_config_line($icinga2_cfg, "\tservicegroups = [ \"$servicegroups\" ],");
        }
        #say Dumper($service_description);
        #say Dumper($service_2x->{'servicegroups'});
    }

    ####################################################
    # servicedependencies (1.x deps)
    ####################################################
    if(defined($service_2x->{'__I2CONVERT_PARENT_SERVICES'})) {
        dump_config_line($icinga2_cfg, "\tservicedependencies = [");

        #say Dumper($service_2x);
        # this is a hash with keys
        foreach my $servicedep_key (keys %{$service_2x->{'__I2CONVERT_PARENT_SERVICES'}}) {
            my $servicedep = $service_2x->{'__I2CONVERT_PARENT_SERVICES'}->{$servicedep_key};
            dump_config_line($icinga2_cfg, "\t\t{ host = \"$servicedep->{'host'}\", service = \"$servicedep->{'service'}\" },");
        }
        dump_config_line($icinga2_cfg, "\t],");
    }

    ####################################################
    # notifications
    ####################################################
    if(defined($service_2x->{'__I2CONVERT_NOTIFICATIONS'})) {
        #say Dumper ($service_2x->{'__I2CONVERT_NOTIFICATIONS'});
        # this is an array of notification objects
        foreach my $service_notification_hash (@{$service_2x->{'__I2CONVERT_NOTIFICATIONS'}}) {

            #say Dumper($service_notification_hash);

            # this is a hash by unique key of the notification template, but all further attributes are seperatedly available too
            foreach my $service_notification_key (keys %{$service_notification_hash}) {
                my $service_notification = $service_notification_hash->{$service_notification_key};
                #say Dumper($service_notification);

                # skip everything not related to service notifications
                next if ($service_notification->{'type'} ne 'service');

                dump_config_line($icinga2_cfg, "\tnotifications[\"$service_notification->{'name'}\"] = {");

                if (defined ($service_notification->{'templates'}) && @{$service_notification->{'templates'}} > 0) {
                    my $service_notification_templates = join '", "', @{$service_notification->{'templates'}};
                    dump_config_line($icinga2_cfg, "\t\ttemplates = [ \"$service_notification_templates\" ],");
                }

                if(defined($service_notification->{'users'}) && @{$service_notification->{'users'}} > 0) {
                    my $service_users = join '", "', @{$service_notification->{'users'}};
                    dump_config_line($icinga2_cfg, "\t\tusers = [ \"$service_users\" ],");
                }

                # this is set for escalations
                if(defined($service_notification->{'__I2CONVERT_NOTIFICATION_TIMES'}) && $service_notification->{'__I2CONVERT_NOTIFICATION_TIMES'} != 0) {
                    dump_config_line($icinga2_cfg, "\t\ttimes = {");
                    dump_config_line($icinga2_cfg, "\t\t\tbegin = $service_notification->{'__I2CONVERT_NOTIFICATION_TIMES'}->{'begin'},");
                    dump_config_line($icinga2_cfg, "\t\t\tend = $service_notification->{'__I2CONVERT_NOTIFICATION_TIMES'}->{'end'}");
                    dump_config_line($icinga2_cfg, "\t\t},");
                }

                dump_config_line($icinga2_cfg, "\t},");
            }
        }
    }

    if(defined($service_2x->{'notification_period'})) {
        dump_config_line($icinga2_cfg, "\tnotification_period = \"$service_2x->{'notification_period'}\",");
    }
    if(defined($service_2x->{'notification_interval'})) {
        dump_config_line($icinga2_cfg, "\tnotification_interval = $service_2x->{'notification_interval'},");
    }
    if(defined($service_2x->{'notifications_enabled'})) {
        dump_config_line($icinga2_cfg, "\tnotifications_enabled = $service_2x->{'notifications_enabled'},");
    }

    if(defined($service_2x->{'__I2CONVERT_NOTIFICATION_FILTERS'})) {
        #say Dumper($service_2x);
        foreach my $by (keys %{$service_2x->{'__I2CONVERT_NOTIFICATION_FILTERS'}}) {
            next if !@{$service_2x->{'__I2CONVERT_NOTIFICATION_FILTERS'}->{$by}};
            my $notification_filter;
            if (grep /0/, @{$service_2x->{'__I2CONVERT_NOTIFICATION_FILTERS'}->{$by}}) {
                $notification_filter = 0;
            } else {
                $notification_filter = "(". (join ' | ', @{$service_2x->{'__I2CONVERT_NOTIFICATION_FILTERS'}->{$by}}) .")";
            }
            dump_config_line($icinga2_cfg, "\tnotification_".$by."_filter = $notification_filter,");
        }
    }

    ####################################################
    # other service attributes, if set
    ####################################################
    if(defined($service_2x->{'check_interval'})) {
        dump_config_line($icinga2_cfg, "\tcheck_interval = $service_2x->{'check_interval'},");
    }
    if(defined($service_2x->{'retry_interval'})) {
        dump_config_line($icinga2_cfg, "\tretry_interval = $service_2x->{'retry_interval'},");
    }
    if(defined($service_2x->{'max_check_attempts'})) {
        dump_config_line($icinga2_cfg, "\tmax_check_attempts = $service_2x->{'max_check_attempts'},");
    }

    if(defined($service_2x->{'check_period'})) {
        dump_config_line($icinga2_cfg, "\tcheck_period = \"$service_2x->{'check_period'}\",");
    }

    if(defined($service_2x->{'volatile'})) {
        dump_config_line($icinga2_cfg, "\tvolatile = $service_2x->{'volatile'},");
    }

    ####################################################
    # custom attr
    ####################################################
    if(defined($service_2x->{'__I2CONVERT_CUSTOM_ATTR'}) && $service_2x->{'__I2CONVERT_CUSTOM_ATTR'} != 0) {
        dump_config_line($icinga2_cfg, "\tcustom = {");
        foreach my $custom_key (keys %{$service_2x->{'__I2CONVERT_CUSTOM_ATTR'}}) {
            dump_config_line($icinga2_cfg, "\t\t$custom_key = \"$service_2x->{'__I2CONVERT_CUSTOM_ATTR'}->{$custom_key}\",");
        }
        dump_config_line($icinga2_cfg, "\t},");
    }

    dump_config_line($icinga2_cfg, "");

    dump_config_line($icinga2_cfg, "}");
    dump_config_line($icinga2_cfg, "\n");
}

sub dump_host_2x {
    my $icinga2_cfg = shift;
    my $host_2x = shift;
    my $object_type = "object"; # object or template
    my $host_name = $host_2x->{'host_name'}; # default, may be changed for templates

    #say Dumper($host_2x);
    if ($host_2x->{__I2CONVERT_IS_TEMPLATE} == 1) {
        $object_type = "template";
        $host_name = $host_2x->{'__I2CONVERT_TEMPLATE_NAME'};
    }

    ####################################################
    # start, inherit from template?
    ####################################################
    if (defined($host_2x->{'__I2CONVERT_USES_TEMPLATE'}) && $host_2x->{'__I2CONVERT_USES_TEMPLATE'} == 1) {
        my $host_2x_templates = join '", "', @{$host_2x->{'__I2CONVERT_TEMPLATE_NAMES'}};
        dump_config_line($icinga2_cfg, "$object_type Host \"$host_name\" inherits \"$host_2x_templates\" {");
    } else {
        dump_config_line($icinga2_cfg, "$object_type Host \"$host_name\" {");
    }

    ####################################################
    # display_name
    ####################################################
    if(defined($host_2x->{'display_name'})) {
        dump_config_line($icinga2_cfg, "\tdisplay_name = \"$host_2x->{'display_name'}\",");
    }

    ####################################################
    # macros
    ####################################################
    dump_config_line($icinga2_cfg, "");

    if(defined($host_2x->{'__I2CONVERT_MACROS'}) && $host_2x->{'__I2CONVERT_MACROS'} != 0) {
        dump_config_line($icinga2_cfg, "\tmacros = {");
        foreach my $macro_key (keys %{$host_2x->{'__I2CONVERT_MACROS'}}) {
            dump_config_line($icinga2_cfg, "\t\t$macro_key = \"$host_2x->{'__I2CONVERT_MACROS'}->{$macro_key}\",");
        }
        dump_config_line($icinga2_cfg, "\t},");
    }
    dump_config_line($icinga2_cfg, "");

    ####################################################
    # hostcheck
    ####################################################
    # this is magic, and must be set during conversion
    if(defined($host_2x->{'__I2CONVERT_HOSTCHECK'})) {
        dump_config_line($icinga2_cfg, "\thostcheck = \"$host_2x->{'__I2CONVERT_HOSTCHECK'}\",");
    }

    ####################################################
    # hostgroups
    ####################################################
    if(defined($host_2x->{'hostgroups'})) {
        my $hostgroups = join '", "', @{$host_2x->{'hostgroups'}};
        if ($host_2x->{'__I2_CONVERT_HG_ADD'} == 1) {
            dump_config_line($icinga2_cfg, "\thostgroups += [ \"$hostgroups\" ],");
        } else {
            dump_config_line($icinga2_cfg, "\thostgroups = [ \"$hostgroups\" ],");
        }
    }

    ####################################################
    # hostdependencies (1.x deps and parents combined)
    ####################################################
    if(defined($host_2x->{'__I2CONVERT_PARENT_HOSTNAMES'})) {
        my $hostdependency_hosts = join '", "', @{$host_2x->{'__I2CONVERT_PARENT_HOSTNAMES'}};
        dump_config_line($icinga2_cfg, "\thostdependencies = [ \"$hostdependency_hosts\" ],");
    }

    ####################################################
    # notifications
    ####################################################
    if(defined($host_2x->{'__I2CONVERT_NOTIFICATION_FILTERS'})) {
        foreach my $by (keys %{$host_2x->{'__I2CONVERT_NOTIFICATION_FILTERS'}}) {
            next if !@{$host_2x->{'__I2CONVERT_NOTIFICATION_FILTERS'}->{$by}};
            my $notification_filter;
            if (grep /0/, @{$host_2x->{'__I2CONVERT_NOTIFICATION_FILTERS'}->{$by}}) {
                $notification_filter = 0;
            } else {
                $notification_filter = "(". (join ' | ', @{$host_2x->{'__I2CONVERT_NOTIFICATION_FILTERS'}->{$by}}) .")";
            }
            dump_config_line($icinga2_cfg, "\tnotification_".$by."_filter = $notification_filter,");
        }
    }

    if(defined($host_2x->{'__I2CONVERT_NOTIFICATIONS'})) {
        #say Dumper ($host_2x->{'__I2CONVERT_NOTIFICATIONS'});
        # this is an array of notification objects
        foreach my $host_notification_hash (@{$host_2x->{'__I2CONVERT_NOTIFICATIONS'}}) {

            #say Dumper($host_notification_hash);

            # this is a hash by unique key of the notification template, but all further attributes are seperatedly available too
            foreach my $host_notification_key (keys %{$host_notification_hash}) {
                my $host_notification = $host_notification_hash->{$host_notification_key};
                #say Dumper($host_notification);

                # skip everything not related to host notifications
                next if ($host_notification->{'type'} ne 'host');

                dump_config_line($icinga2_cfg, "\tnotifications[\"$host_notification->{'name'}\"] = {");

                if (defined ($host_notification->{'templates'}) && @{$host_notification->{'templates'}} > 0) {
                    my $host_notification_templates = join '", "', @{$host_notification->{'templates'}};
                    dump_config_line($icinga2_cfg, "\t\ttemplates = [ \"$host_notification_templates\" ],");
                }

                if(defined($host_notification->{'users'}) && @{$host_notification->{'users'}} > 0) {
                    my $host_users = join '", "', @{$host_notification->{'users'}};
                    dump_config_line($icinga2_cfg, "\t\tusers = [ \"$host_users\" ],");
                }

                dump_config_line($icinga2_cfg, "\t},");
            }
        }
    }


    if(defined($host_2x->{'notification_period'})) {
        dump_config_line($icinga2_cfg, "\tnotification_period = \"$host_2x->{'notification_period'}\",");
    }
    if(defined($host_2x->{'notification_interval'})) {
        dump_config_line($icinga2_cfg, "\tnotification_interval = $host_2x->{'notification_interval'},");
    }
    if(defined($host_2x->{'notifications_enabled'})) {
        dump_config_line($icinga2_cfg, "\tnotifications_enabled = $host_2x->{'notifications_enabled'},");
    }

    ####################################################
    # other host attributes, if set
    ####################################################
    if(defined($host_2x->{'check_interval'})) {
        dump_config_line($icinga2_cfg, "\tcheck_interval = $host_2x->{'check_interval'},");
    }
    if(defined($host_2x->{'retry_interval'})) {
        dump_config_line($icinga2_cfg, "\tretry_interval = $host_2x->{'retry_interval'},");
    }
    if(defined($host_2x->{'max_check_attempts'})) {
        dump_config_line($icinga2_cfg, "\tmax_check_attempts = $host_2x->{'max_check_attempts'},");
    }
    if(defined($host_2x->{'check_period'})) {
        dump_config_line($icinga2_cfg, "\tcheck_period = \"$host_2x->{'check_period'}\",");
    }

    ####################################################
    # custom attr
    ####################################################

    if(defined($host_2x->{'__I2CONVERT_CUSTOM_ATTR'}) && $host_2x->{'__I2CONVERT_CUSTOM_ATTR'} != 0) {
        dump_config_line($icinga2_cfg, "\tcustom = {");
        foreach my $custom_key (keys %{$host_2x->{'__I2CONVERT_CUSTOM_ATTR'}}) {
            dump_config_line($icinga2_cfg, "\t\t$custom_key = \"$host_2x->{'__I2CONVERT_CUSTOM_ATTR'}->{$custom_key}\",");
        }
        dump_config_line($icinga2_cfg, "\t},");
    }

    ####################################################
    # host with no services - valid configuration
    ####################################################
    if (!defined($host_2x->{'SERVICE'})) {
        dump_config_line($icinga2_cfg, "}");
        dump_config_line($icinga2_cfg, "\n");
        return;
    }

    #say Dumper($host_2x->{'SERVICE'});

    ####################################################
    # now all services with templates
    ####################################################
    foreach my $service_2x_key (keys %{$host_2x->{'SERVICE'}}) {
        my $service_2x = $host_2x->{'SERVICE'}->{$service_2x_key};

        dump_config_line($icinga2_cfg, "\tservices[\"$service_2x->{__I2CONVERT_SERVICEDESCRIPTION}\"] = {");

        ####################################################
        # templates
        ####################################################
        if (defined($service_2x->{'__I2CONVERT_USES_TEMPLATE'}) && $service_2x->{'__I2CONVERT_USES_TEMPLATE'} == 1) {
            my $service_2x_templates = join '", "', @{$service_2x->{'__I2CONVERT_TEMPLATE_NAMES'}};
            dump_config_line($icinga2_cfg, "\t\ttemplates = [ \"$service_2x_templates\" ],")
        }
        ####################################################
        # display_name
        ####################################################
        if(defined($service_2x->{'display_name'})) {
            dump_config_line($icinga2_cfg, "\t\tdisplay_name = \"$service_2x->{'display_name'}\",");
        }

        dump_config_line($icinga2_cfg, "");
        ####################################################
        # macros
        ####################################################
        if(defined($service_2x->{'__I2CONVERT_MACROS'}) && $service_2x->{'__I2CONVERT_MACROS'} != 0) {
            dump_config_line($icinga2_cfg, "\t\tmacros = {");
            foreach my $cmd_arg (keys %{$service_2x->{'__I2CONVERT_MACROS'}}) {
                dump_config_line($icinga2_cfg, "\t\t\t$cmd_arg = \"$service_2x->{'__I2CONVERT_MACROS'}->{$cmd_arg}\",");
            }
            dump_config_line($icinga2_cfg, "\t\t},");
        }

        ####################################################
        # check_command
        ####################################################
        if(defined($service_2x->{'check_command'})) {
            dump_config_line($icinga2_cfg, "\t\tcheck_command = \"$service_2x->{'check_command'}\",");
        }

        ####################################################
        # servicegroups
        ####################################################
        if(defined($service_2x->{'servicegroups'}) && scalar(@{$service_2x->{'servicegroups'}}) > 0) {
            #say Dumper($service_2x->{'servicegroups'});
            my $servicegroups = join '", "', @{$service_2x->{'servicegroups'}};
            if ($service_2x->{'__I2_CONVERT_SG_ADD'} == 1) {
                dump_config_line($icinga2_cfg, "\t\tservicegroups += [ \"$servicegroups\" ],");
            } else {
                dump_config_line($icinga2_cfg, "\t\tservicegroups = [ \"$servicegroups\" ],");
            }
        }

        ####################################################
        # notifications
        ####################################################
        if(defined($service_2x->{'__I2CONVERT_NOTIFICATION_FILTERS'})) {
            foreach my $by (keys %{$service_2x->{'__I2CONVERT_NOTIFICATION_FILTERS'}}) {
                next if !@{$service_2x->{'__I2CONVERT_NOTIFICATION_FILTERS'}->{$by}};
                my $notification_filter;
                if (grep /0/, @{$service_2x->{'__I2CONVERT_NOTIFICATION_FILTERS'}->{$by}}) {
                    $notification_filter = 0;
                } else {
                    $notification_filter = "(". (join ' | ', @{$service_2x->{'__I2CONVERT_NOTIFICATION_FILTERS'}->{$by}}) .")";
                }
                dump_config_line($icinga2_cfg, "\tnotification_".$by."_filter = $notification_filter,");
            }
        }

        if(defined($service_2x->{'__I2CONVERT_NOTIFICATIONS'})) {
            #say Dumper ($service_2x->{'__I2CONVERT_NOTIFICATIONS'});
            # this is an array of notification objects
            foreach my $service_notification_hash (@{$service_2x->{'__I2CONVERT_NOTIFICATIONS'}}) {

                #say Dumper($service_notification_hash);

                # this is a hash by unique key of the notification template, but all further attributes are seperatedly available too
                foreach my $service_notification_key (keys %{$service_notification_hash}) {
                    my $service_notification = $service_notification_hash->{$service_notification_key};
                    #say Dumper($service_notification);

                    # skip everything not related to service notifications
                    next if ($service_notification->{'type'} ne 'service');

                    dump_config_line($icinga2_cfg, "\t\tnotifications[\"$service_notification->{'name'}\"] = {");

                    if (defined ($service_notification->{'templates'}) && @{$service_notification->{'templates'}} > 0) {
                        my $service_notification_templates = join '", "', @{$service_notification->{'templates'}};
                        dump_config_line($icinga2_cfg, "\t\t\ttemplates = [ \"$service_notification_templates\" ],");
                    }

                    if(defined($service_notification->{'users'}) && @{$service_notification->{'users'}} > 0) {
                        my $service_users = join '", "', @{$service_notification->{'users'}};
                        dump_config_line($icinga2_cfg, "\t\t\tusers = [ \"$service_users\" ],");
                    }

                    # this is set for escalations
                    if(defined($service_notification->{'__I2CONVERT_NOTIFICATION_TIMES'}) && $service_notification->{'__I2CONVERT_NOTIFICATION_TIMES'} != 0) {
                        dump_config_line($icinga2_cfg, "\t\t\ttimes = {");
                        dump_config_line($icinga2_cfg, "\t\t\t\tbegin = $service_notification->{'__I2CONVERT_NOTIFICATION_TIMES'}->{'begin'},");
                        dump_config_line($icinga2_cfg, "\t\t\t\tend = $service_notification->{'__I2CONVERT_NOTIFICATION_TIMES'}->{'end'}");
                        dump_config_line($icinga2_cfg, "\t\t\t},");
                    }

                    dump_config_line($icinga2_cfg, "\t\t},");
                }
            }
        }

        if(defined($service_2x->{'notification_period'})) {
            dump_config_line($icinga2_cfg, "\t\tnotification_period = \"$service_2x->{'notification_period'}\",");
        }
        if(defined($service_2x->{'notification_interval'})) {
            dump_config_line($icinga2_cfg, "\t\tnotification_interval = $service_2x->{'notification_interval'},");
        }
        if(defined($service_2x->{'notifications_enabled'})) {
            dump_config_line($icinga2_cfg, "\tnotifications_enabled = $service_2x->{'notifications_enabled'},");
        }

        ####################################################
        # other service attributes, if set
        ####################################################
        if(defined($service_2x->{'check_interval'})) {
            dump_config_line($icinga2_cfg, "\t\tcheck_interval = $service_2x->{'check_interval'},");
        }
        if(defined($service_2x->{'retry_interval'})) {
            dump_config_line($icinga2_cfg, "\t\tretry_interval = $service_2x->{'retry_interval'},");
        }
        if(defined($service_2x->{'max_check_attempts'})) {
            dump_config_line($icinga2_cfg, "\t\tmax_check_attempts = $service_2x->{'max_check_attempts'},");
        }
        if(defined($service_2x->{'check_period'})) {
            dump_config_line($icinga2_cfg, "\tcheck_period = \"$service_2x->{'check_period'}\",");
        }

        ####################################################
        # custom attr
        ####################################################

        if(defined($service_2x->{'__I2CONVERT_CUSTOM_ATTR'}) && $service_2x->{'__I2CONVERT_CUSTOM_ATTR'} != 0) {
            dump_config_line($icinga2_cfg, "\t\tcustom = {");
            foreach my $custom_key (keys %{$service_2x->{'__I2CONVERT_CUSTOM_ATTR'}}) {
                dump_config_line($icinga2_cfg, "\t\t\t$custom_key = \"$service_2x->{'__I2CONVERT_CUSTOM_ATTR'}->{$custom_key}\",");
            }
            dump_config_line($icinga2_cfg, "\t\t},");
        }

        dump_config_line($icinga2_cfg, "\t},");
        dump_config_line($icinga2_cfg, "");
    }
    dump_config_line($icinga2_cfg, "}");
    dump_config_line($icinga2_cfg, "\n");
}

sub dump_user_2x {
    my $icinga2_cfg = shift;
    my $user_2x = shift;
    my $object_type = "object"; # object or template
    my $user_name = $user_2x->{'contact_name'}; # default, may be changed for templates

    #say Dumper($user_2x);
    if ($user_2x->{__I2CONVERT_IS_TEMPLATE} == 1) {
        $object_type = "template";
        $user_name = $user_2x->{'__I2CONVERT_TEMPLATE_NAME'};
    }

    ####################################################
    # start, inherit from template?
    ####################################################
    if (defined($user_2x->{'__I2CONVERT_USES_TEMPLATE'}) && $user_2x->{'__I2CONVERT_USES_TEMPLATE'} == 1) {
        my $user_2x_templates = join '", "', @{$user_2x->{'__I2CONVERT_TEMPLATE_NAMES'}};
        dump_config_line($icinga2_cfg, "$object_type User \"$user_name\" inherits \"$user_2x_templates\" {");
    } else {
        dump_config_line($icinga2_cfg, "$object_type User \"$user_name\" {");
    }

    if(defined($user_2x->{'display_name'})) {
        dump_config_line($icinga2_cfg, "\tdisplay_name = \"$user_2x->{'display_name'}\",");
    }

    ####################################################
    # macros
    ####################################################

    if(defined($user_2x->{'__I2CONVERT_MACROS'}) && $user_2x->{'__I2CONVERT_MACROS'} != 0) {
        dump_config_line($icinga2_cfg, "\tmacros = {");
        foreach my $macro_key (keys %{$user_2x->{'__I2CONVERT_MACROS'}}) {
            dump_config_line($icinga2_cfg, "\t\t$macro_key = \"$user_2x->{'__I2CONVERT_MACROS'}->{$macro_key}\",");
        }
        dump_config_line($icinga2_cfg, "\t},");
    }

    dump_config_line($icinga2_cfg, "");

    ####################################################
    # notifications
    ####################################################

    if(defined($user_2x->{'notification_period'})) {
        dump_config_line($icinga2_cfg, "\tnotification_period = \"$user_2x->{'notification_period'}\",");
    }

    if(defined($user_2x->{'__I2CONVERT_NOTIFICATION_FILTERS'})) {
        foreach my $by (keys %{$user_2x->{'__I2CONVERT_NOTIFICATION_FILTERS'}}) {
            next if !@{$user_2x->{'__I2CONVERT_NOTIFICATION_FILTERS'}->{$by}};
            my $notification_filter;
            if (grep /0/, @{$user_2x->{'__I2CONVERT_NOTIFICATION_FILTERS'}->{$by}}) {
                $notification_filter = 0;
            } else {
                $notification_filter = "(". (join ' | ', @{$user_2x->{'__I2CONVERT_NOTIFICATION_FILTERS'}->{$by}}) .")";
            }
            dump_config_line($icinga2_cfg, "\tnotification_".$by."_filter = $notification_filter,");
        }
    }

    ####################################################
    # usergroups
    ####################################################
    if(defined($user_2x->{'usergroups'})) {
        #say Dumper($user_2x->{'usergroups'});
        my $usergroups = join '", "', @{$user_2x->{'usergroups'}};
        if ($user_2x->{'__I2_CONVERT_UG_ADD'} == 1) {
            dump_config_line($icinga2_cfg, "\tgroups += [ \"$usergroups\" ],");
        } else {
            dump_config_line($icinga2_cfg, "\tgroups = [ \"$usergroups\" ],");
        }
    }

    ####################################################
    # custom attr
    ####################################################

    if(defined($user_2x->{'__I2CONVERT_CUSTOM_ATTR'}) && $user_2x->{'__I2CONVERT_CUSTOM_ATTR'} != 0) {
        dump_config_line($icinga2_cfg, "\tcustom = {");
        foreach my $custom_key (keys %{$user_2x->{'__I2CONVERT_CUSTOM_ATTR'}}) {
            dump_config_line($icinga2_cfg, "\t\t$custom_key = \"$user_2x->{'__I2CONVERT_CUSTOM_ATTR'}->{$custom_key}\",");
        }
        dump_config_line($icinga2_cfg, "\t},");
    }

    dump_config_line($icinga2_cfg, "");
    dump_config_line($icinga2_cfg, "}");
    dump_config_line($icinga2_cfg, "\n");
}

sub dump_notification_2x {
    my $icinga2_cfg = shift;
    my $notification_2x = shift;
    my $object_type = "object"; # object or template
    my $notification_name = $notification_2x->{'__I2CONVERT_NOTIFICATION_NAME'}; # default, may be changed for templates

    #say Dumper($notification_2x);
    if ($notification_2x->{__I2CONVERT_IS_TEMPLATE} == 1) {
        $object_type = "template";
        $notification_name = $notification_2x->{'__I2CONVERT_NOTIFICATION_TEMPLATE_NAME'};
    }

    return if (!defined($notification_name));

    ####################################################
    # start, inherit from template?
    ####################################################
    if (defined($notification_2x->{'__I2CONVERT_USES_TEMPLATE'}) && $notification_2x->{'__I2CONVERT_USES_TEMPLATE'} == 1) {
        my $notification_2x_templates = join '", "', @{$notification_2x->{'__I2CONVERT_TEMPLATE_NAMES'}};
        dump_config_line($icinga2_cfg, "$object_type Notification \"$notification_name\" inherits \"$notification_2x_templates\" {");
    } else {
        dump_config_line($icinga2_cfg, "$object_type Notification \"$notification_name\" {");
    }

    if(defined($notification_2x->{'display_name'})) {
        dump_config_line($icinga2_cfg, "\tdisplay_name = \"$notification_2x->{'display_name'}\",");
    }

    if(defined($notification_2x->{'__I2CONVERT_NOTIFICATION_COMMAND'})) {
        #say Dumper($notifications_2x->{'notification_command'});
        dump_config_line($icinga2_cfg, "\tnotification_command = \"$notification_2x->{'__I2CONVERT_NOTIFICATION_COMMAND'}\",");
    }

    if(defined($notification_2x->{'export_macros'})) {
        #say Dumper($notification_2x->{'export_macros'});
        my $export_macros = join '",\n"', @{$notification_2x->{'export_macros'}};
        dump_config_line($icinga2_cfg, "\texport_macros = [ \"$export_macros\" ],");
    }

    if(defined($notification_2x->{'users'}) && @{$notification_2x->{'users'}} > 0) {
        my $service_users = join '", "', @{$notification_2x->{'users'}};
        dump_config_line($icinga2_cfg, "\tusers = [ \"$service_users\" ],");
    }

    # this is set for escalations
    if(defined($notification_2x->{'__I2CONVERT_NOTIFICATION_TIMES'}) && $notification_2x->{'__I2CONVERT_NOTIFICATION_TIMES'} != 0) {
        dump_config_line($icinga2_cfg, "\ttimes = {");
        dump_config_line($icinga2_cfg, "\t\tbegin = $notification_2x->{'__I2CONVERT_NOTIFICATION_TIMES'}->{'begin'},");
        dump_config_line($icinga2_cfg, "\t\tend = $notification_2x->{'__I2CONVERT_NOTIFICATION_TIMES'}->{'end'}");
        dump_config_line($icinga2_cfg, "\t},");
    }

    dump_config_line($icinga2_cfg, "");
    dump_config_line($icinga2_cfg, "}");
    dump_config_line($icinga2_cfg, "\n");
}


sub dump_timeperiod_2x {
    my $icinga2_cfg = shift;
    my $object_type = "object"; # object or template
    my $timeperiod_2x = shift;
    my $timeperiod_name = $timeperiod_2x->{'timeperiod_name'};

    #say Dumper($timeperiod_2x);
    if ($timeperiod_2x->{__I2CONVERT_IS_TEMPLATE} == 1) {
        $object_type = "template";
        $timeperiod_name = $timeperiod_2x->{'__I2CONVERT_TEMPLATE_NAME'};
    }

    ####################################################
    # start, inherit from template?
    ####################################################
    if (defined($timeperiod_2x->{'__I2CONVERT_USES_TEMPLATE'}) && $timeperiod_2x->{'__I2CONVERT_USES_TEMPLATE'} == 1) {
        my $timeperiod_2x_templates = join '", "', @{$timeperiod_2x->{'__I2CONVERT_TEMPLATE_NAMES'}};
        dump_config_line($icinga2_cfg, "$object_type TimePeriod \"$timeperiod_name\" inherits \"$timeperiod_2x_templates\" {");
    } else {
        dump_config_line($icinga2_cfg, "$object_type TimePeriod \"$timeperiod_name\" {");
    }

    # display_name is seperated at first position
    if(defined($timeperiod_2x->{'display_name'})) {
        dump_config_line($icinga2_cfg, "\tdisplay_name = \"$timeperiod_2x->{'display_name'}\",");
    }

    dump_config_line($icinga2_cfg, "\tranges = {");

    # dump all possible keys (there's no fixed string attr here)
    foreach my $key (sort (keys %{$timeperiod_2x})) {
        if ($key !~ /__I2CONVERT/ &&
            $key ne 'alias' &&
            $key ne 'name' &&
            $key ne 'timeperiod_name' &&
            $key ne 'display_name' &&
            $key ne 'use'
        ) {
            dump_config_line($icinga2_cfg, "\t\t\"$key\" \t= \"$timeperiod_2x->{$key}\",");
        }
    }

    dump_config_line($icinga2_cfg, "\t},");
    dump_config_line($icinga2_cfg, "");
    dump_config_line($icinga2_cfg, "}");
    dump_config_line($icinga2_cfg, "\n");
}

sub dump_group_2x {
    my $icinga2_cfg = shift;
    my $group_2x = shift;
    my $group_name_attr = $group_2x->{__I2CONVERT_TYPE} . "_name";
    my $group_name = $group_2x->{$group_name_attr};
    my $group_type = ucfirst("$group_2x->{__I2CONVERT_TYPE}");
    $group_type =~ s/group/Group/;

    #say Dumper($group_2x);

    dump_config_line($icinga2_cfg, "object $group_type \"$group_name\" {");
    if(defined($group_2x->{'display_name'})) {
        dump_config_line($icinga2_cfg, "\tdisplay_name = \"$group_2x->{'display_name'}\",");
    }

    ####################################################
    # custom attr
    ####################################################

    if(defined($group_2x->{'__I2CONVERT_CUSTOM_ATTR'}) && $group_2x->{'__I2CONVERT_CUSTOM_ATTR'} != 0) {
        dump_config_line($icinga2_cfg, "\tcustom = {");
        foreach my $custom_key (keys %{$group_2x->{'__I2CONVERT_CUSTOM_ATTR'}}) {
            dump_config_line($icinga2_cfg, "\t\t$custom_key = \"$group_2x->{'__I2CONVERT_CUSTOM_ATTR'}->{$custom_key}\",");
        }
        dump_config_line($icinga2_cfg, "\t},");
    }

    dump_config_line($icinga2_cfg, "");
    dump_config_line($icinga2_cfg, "}");
    dump_config_line($icinga2_cfg, "\n");
}

sub dump_command_2x {
    my $icinga2_cfg = shift;
    my $command_2x = shift;
    my $command_name = $command_2x->{'__I2CONVERT_COMMAND_NAME'};
    my $command_line = $command_2x->{'__I2CONVERT_COMMAND_LINE'};
    my $command_type = ucfirst("$command_2x->{__I2CONVERT_COMMAND_TYPE}Command");
    my $object_type = "object";

    #say Dumper($command_2x);

    if ($command_2x->{__I2CONVERT_IS_TEMPLATE} == 1) {
        $object_type = "template";
        $command_name = $command_2x->{'__I2CONVERT_TEMPLATE_NAME'};
    }

    ####################################################
    # start, inherit from template?
    ####################################################
    if (defined($command_2x->{'__I2CONVERT_USES_TEMPLATE'}) && $command_2x->{'__I2CONVERT_USES_TEMPLATE'} == 1) {
        my $command_2x_templates = join '", "', @{$command_2x->{'__I2CONVERT_TEMPLATE_NAMES'}};
        dump_config_line($icinga2_cfg, "$object_type $command_type \"$command_name\" inherits \"$command_2x_templates\" {");
    } else {
        dump_config_line($icinga2_cfg, "$object_type $command_type \"$command_name\" {");
    }

    ####################################################
    # attributes
    ####################################################
    if(defined($command_2x->{'display_name'})) {
        dump_config_line($icinga2_cfg, "\tdisplay_name = \"$command_2x->{'display_name'}\",");
    }

    if(defined($command_line)) {
        dump_config_line($icinga2_cfg, "\tcommand = \"$command_line\",");
    }

    ####################################################
    # macros
    ####################################################

    if(defined($command_2x->{'__I2CONVERT_COMMAND_MACROS'}) && $command_2x->{'__I2CONVERT_COMMAND_MACROS'} != 0) {
        dump_config_line($icinga2_cfg, "\tmacros = {");
        foreach my $cmd_arg (keys %{$command_2x->{'__I2CONVERT_COMMAND_MACROS'}}) {
            dump_config_line($icinga2_cfg, "\t\t$cmd_arg = \"$command_2x->{'__I2CONVERT_COMMAND_MACROS'}->{$cmd_arg}\",");
        }
        dump_config_line($icinga2_cfg, "\t},");
    }

    dump_config_line($icinga2_cfg, "");

    dump_config_line($icinga2_cfg, "");

    dump_config_line($icinga2_cfg, "}");
    dump_config_line($icinga2_cfg, "\n");
}



1;

__END__
# vi: sw=4 ts=4 expandtab :