# Copyright (c) 2010 bivio Software, Inc.  All Rights Reserved.
#
# Visit http://www.bivio.biz for more info.
# 
# This library is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation; either version 2.1 of the
# License, or (at your option) any later version.
# 
# This library 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
# Lesser General Public License for more details.
# 
# You should have received a copy of the GNU Lesser General Public
# License along with this library;  If not, you may get a copy from:
# http://www.opensource.org/licenses/lgpl-license.html
# 
# $Id: CommandBase.pm,v 1.3 2011/03/25 19:44:01 moeller Exp $
package Bivio::Search::Parser::RealmFile::CommandBase;
use strict;
use Bivio::Base 'SearchParser.RealmFile';

our($VERSION) = sprintf('%d.%02d', q$Revision: 1.3 $ =~ /\d+/g);
my($_SU) = b_use('Bivio.ShellUtil');
my($_D) = b_use('Bivio.Die');
my($_S) = b_use('Type.String');

sub CONTENT_TYPE_LIST {
    return '';
}

sub handle_realm_file_new_text {
    my($proto, $parseable) = @_;
    my($path) = $parseable->get_os_path;
    my($title) = $proto->internal_get_title($parseable);
    return $proto->new({
	type => $proto->CONTENT_TYPE_LIST,
	defined($title) && length($title) ? (title => $title) : (),
	text => $_S->canonicalize_charset(
	    \$proto->internal_get_text($parseable)),
    });
}

sub internal_get_text {
    my($proto, $parseable) = @_;
    return undef;
}

sub internal_get_title {
    my($proto, $parseable) = @_;
    return undef;
}

sub internal_run_parser {
    my($proto, $cmd, $parseable, $error_pattern) = @_;
    my($out);
    my($path) = $parseable->get_os_path;
    b_die($cmd, ': missing <path>')
	unless $cmd =~ s/<path>/$path/g;
    my($die) = $_D->catch_quietly(sub {$out = $_SU->piped_exec($cmd)});
    if ($die || !defined($out) || ($error_pattern && $$out =~ $error_pattern)) {
	b_warn($cmd, ': ', $die ? $die->get('attrs') : ($out || 'no output'));
	return '';
    }
    return $$out;
}

1;