WebPAC/Input/MARC.pm

package WebPAC::Input::MARC;

use warnings;
use strict;

use blib;

use WebPAC::Common;
use MARC::Fast;

=head1 NAME

WebPAC::Input::MARC - support for MARC database files

=head1 VERSION

Version 0.01

=cut

our $VERSION = '0.01';


=head1 SYNOPSIS

Open USMARC, Unimarc or any other file format that has same internal
structure using C<MARC::Fast>.

 my $marc = new WebPAC::Input::MARC();
 $marc->open( path => '/path/to/marc.iso' );

=head1 FUNCTIONS

=head2 open_db

Returns handle to database

  my $db = $open_db(
        path => '/path/to/marc.iso'
  }

=cut

sub open_db {
        my $self = shift;

        my $arg = {@_};

        my $log = $self->_get_logger();

        $log->info("opening MARC database '$arg->{path}'");

        my $db = new MARC::Fast( marcdb => $arg->{path});
        my $db_size = $db->count - 1;   # FIXME

        $self->{size} = $db_size;

        return ($db, $db_size);
}

=head2 fetch_rec

Return record with ID C<$mfn> from database

  my $rec = $self->fetch_rec( $db, $mfn );

}

=cut

sub fetch_rec {
        my $self = shift;

        my ($db, $mfn) = @_;

        if ($mfn > $self->{size}) {
                $self->_get_logger()->warn("seek beyond database size $self->{size} to $mfn");
        } else {
                my $row = $db->fetch($mfn);
                $row->{'000'}->[0] = $mfn;
                return $row;
        }
}

=head1 AUTHOR

Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >>

=head1 COPYRIGHT & LICENSE

Copyright 2005 Dobrica Pavlinusic, All Rights Reserved.

This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.

=cut

1; # End of WebPAC::Input::MARC
1	dpavlin	289	package WebPAC::Input::MARC;
2
3			use warnings;
4			use strict;
5
6			use blib;
7
8			use WebPAC::Common;
9			use MARC::Fast;
10
11			=head1 NAME
12
13			WebPAC::Input::MARC - support for MARC database files
14
15			=head1 VERSION
16
17			Version 0.01
18
19			=cut
20
21			our $VERSION = '0.01';
22
23
24			=head1 SYNOPSIS
25
26			Open USMARC, Unimarc or any other file format that has same internal
27			structure using C<MARC::Fast>.
28
29			my $marc = new WebPAC::Input::MARC();
30			$marc->open( path => '/path/to/marc.iso' );
31
32			=head1 FUNCTIONS
33
34			=head2 open_db
35
36			Returns handle to database
37
38			my $db = $open_db(
39			path => '/path/to/marc.iso'
40			}
41
42			=cut
43
44			sub open_db {
45			my $self = shift;
46
47			my $arg = {@_};
48
49			my $log = $self->_get_logger();
50
51			$log->info("opening MARC database '$arg->{path}'");
52
53			my $db = new MARC::Fast( marcdb => $arg->{path});
54	dpavlin	290	my $db_size = $db->count - 1; # FIXME
55	dpavlin	289
56	dpavlin	290	$self->{size} = $db_size;
57
58	dpavlin	289	return ($db, $db_size);
59			}
60
61			=head2 fetch_rec
62
63			Return record with ID C<$mfn> from database
64
65			my $rec = $self->fetch_rec( $db, $mfn );
66
67			}
68
69			=cut
70
71			sub fetch_rec {
72			my $self = shift;
73
74			my ($db, $mfn) = @_;
75
76	dpavlin	290	if ($mfn > $self->{size}) {
77			$self->_get_logger()->warn("seek beyond database size $self->{size} to $mfn");
78			} else {
79			my $row = $db->fetch($mfn);
80			$row->{'000'}->[0] = $mfn;
81			return $row;
82			}
83	dpavlin	289	}
84
85			=head1 AUTHOR
86
87			Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >>
88
89			=head1 COPYRIGHT & LICENSE
90
91			Copyright 2005 Dobrica Pavlinusic, All Rights Reserved.
92
93			This program is free software; you can redistribute it and/or modify it
94			under the same terms as Perl itself.
95
96			=cut
97
98			1; # End of WebPAC::Input::MARC