WebPAC/Input/TSV.pm

package WebPAC::Input::TSV;

use warnings;
use strict;

use WebPAC::Input;
use base qw/WebPAC::Common/;

use Encode;
use Data::Dump qw/dump/;

=head1 NAME

WebPAC::Input::TSV - tab separated values

=cut

=head1 FUNCTIONS

=head2 new

  my $input = new WebPAC::Input::TSV(
        path => '/path/to/records.tsv',
  );

=back

Default encoding of input file is C<utf-8>

=cut

sub new {
        my $class = shift;
        my $self = {@_};
        bless($self, $class);

        my $arg = {@_};

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

        open( my $fh, '<:raw', $arg->{path} ) || $log->logconfess("can't open $arg->{path}: $!");

        $self->{size} = 0;

        while ( my $line = <$fh> ) {
                chomp $line;

                my $rec;
                $rec->{'000'} = [ ++$self->{size} ];

                my $col = 'A';
                foreach my $v ( split(/\t/,$line) ) {
                        $rec->{ $col } = Encode::decode_utf8( $v ) if $v ne '\N';
                        $col++;
                }

                push @{ $self->{_rec} }, $rec;

        };

        $log->debug("loaded ", $self->size, " records");

        $self ? return $self : return undef;
}

=head2 fetch_rec

Return record with ID C<$mfn> from database

  my $rec = $input->fetch_rec( $mfn, $filter_coderef );

=cut

sub fetch_rec {
        my ( $self, $mfn, $filter_coderef ) = @_;

        return $self->{_rec}->[$mfn-1];
}


=head2 size

Return number of records in database

  my $size = $input->size;

=cut

sub size {
        my $self = shift;
        return $self->{size};
}

=head1 AUTHOR

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

=head1 COPYRIGHT & LICENSE

Copyright 2010 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::TSV
1	package WebPAC::Input::TSV;
2
3	use warnings;
4	use strict;
5
6	use WebPAC::Input;
7	use base qw/WebPAC::Common/;
8
9	use Encode;
10	use Data::Dump qw/dump/;
11
12	=head1 NAME
13
14	WebPAC::Input::TSV - tab separated values
15
16	=cut
17
18	=head1 FUNCTIONS
19
20	=head2 new
21
22	my $input = new WebPAC::Input::TSV(
23	path => '/path/to/records.tsv',
24	);
25
26	=back
27
28	Default encoding of input file is C<utf-8>
29
30	=cut
31
32	sub new {
33	my $class = shift;
34	my $self = {@_};
35	bless($self, $class);
36
37	my $arg = {@_};
38
39	my $log = $self->_get_logger();
40
41	open( my $fh, '<:raw', $arg->{path} ) \|\| $log->logconfess("can't open $arg->{path}: $!");
42
43	$self->{size} = 0;
44
45	while ( my $line = <$fh> ) {
46	chomp $line;
47
48	my $rec;
49	$rec->{'000'} = [ ++$self->{size} ];
50
51	my $col = 'A';
52	foreach my $v ( split(/\t/,$line) ) {
53	$rec->{ $col } = Encode::decode_utf8( $v ) if $v ne '\N';
54	$col++;
55	}
56
57	push @{ $self->{_rec} }, $rec;
58
59	};
60
61	$log->debug("loaded ", $self->size, " records");
62
63	$self ? return $self : return undef;
64	}
65
66	=head2 fetch_rec
67
68	Return record with ID C<$mfn> from database
69
70	my $rec = $input->fetch_rec( $mfn, $filter_coderef );
71
72	=cut
73
74	sub fetch_rec {
75	my ( $self, $mfn, $filter_coderef ) = @_;
76
77	return $self->{_rec}->[$mfn-1];
78	}
79
80
81	=head2 size
82
83	Return number of records in database
84
85	my $size = $input->size;
86
87	=cut
88
89	sub size {
90	my $self = shift;
91	return $self->{size};
92	}
93
94	=head1 AUTHOR
95
96	Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >>
97
98	=head1 COPYRIGHT & LICENSE
99
100	Copyright 2010 Dobrica Pavlinusic, All Rights Reserved.
101
102	This program is free software; you can redistribute it and/or modify it
103	under the same terms as Perl itself.
104
105	=cut
106
107	1; # End of WebPAC::Input::TSV