CWMP/Store/YAML.pm

# Dobrica Pavlinusic, <dpavlin@rot13.org> 10/26/07 21:37:12 CEST
package CWMP::Store::YAML;

use strict;
use warnings;

use Data::Dump qw/dump/;
use YAML qw/LoadFile DumpFile/;
use Hash::Merge qw/merge/;
use Carp qw/confess/;

=head1 NAME

CWMP::Store::YAML - use YAML as storage

=head1 METHODS

=head2 open

=cut

my $path;

my $debug = 1;

sub open {
        my $self = shift;

        my $args = shift;

        $debug = $args->{debug};
        $path = $args->{path} || confess "no path?";

        warn "open ",dump( $args ) if $debug;

        $path = "$path/yaml";

        if ( ! -e $path ) {
                mkdir $path || die "can't create $path: $!";
                warn "created $path directory\n";
        }

}

=head2 update_uid_state

  $store->update_uid_state( $uid, $state );

=cut

sub update_uid_state {
        my ( $self, $uid, $state ) = @_;

        my $file = "$path/$uid.yml";

        my $old_state = $self->get_state( $uid );

        my $combined = merge( $state, $old_state );

#       warn "## ",dump( $old_state, $state, $combined );

        DumpFile( $file, $combined ) || die "can't write $file: $!";

}

=head2 get_state

  $store->get_state( $uid );

=cut

sub get_state {
        my ( $self, $uid ) = @_;

        my $file = "$path/$uid.yml";

        if ( -e $file ) {
                return LoadFile( $file );
        }

        return;
}

=head2 all_uids

  my @uids = $store->all_uids;

=cut

sub all_uids {
        my $self = shift;

        opendir(my $d, $path) || die "can't opendir $path: $!";
        my @uids = grep { /\.yml$/ && -f "$path/$_" } readdir($d);
        closedir $d;

        return map { my $l = $_; $l =~ s/\.yml$//; $l } @uids;
}

1;
1	# Dobrica Pavlinusic, <dpavlin@rot13.org> 10/26/07 21:37:12 CEST
2	package CWMP::Store::YAML;
3
4	use strict;
5	use warnings;
6
7	use Data::Dump qw/dump/;
8	use YAML qw/LoadFile DumpFile/;
9	use Hash::Merge qw/merge/;
10	use Carp qw/confess/;
11
12	=head1 NAME
13
14	CWMP::Store::YAML - use YAML as storage
15
16	=head1 METHODS
17
18	=head2 open
19
20	=cut
21
22	my $path;
23
24	my $debug = 1;
25
26	sub open {
27	my $self = shift;
28
29	my $args = shift;
30
31	$debug = $args->{debug};
32	$path = $args->{path} \|\| confess "no path?";
33
34	warn "open ",dump( $args ) if $debug;
35
36	$path = "$path/yaml";
37
38	if ( ! -e $path ) {
39	mkdir $path \|\| die "can't create $path: $!";
40	warn "created $path directory\n";
41	}
42
43	}
44
45	=head2 update_uid_state
46
47	$store->update_uid_state( $uid, $state );
48
49	=cut
50
51	sub update_uid_state {
52	my ( $self, $uid, $state ) = @_;
53
54	my $file = "$path/$uid.yml";
55
56	my $old_state = $self->get_state( $uid );
57
58	my $combined = merge( $state, $old_state );
59
60	# warn "## ",dump( $old_state, $state, $combined );
61
62	DumpFile( $file, $combined ) \|\| die "can't write $file: $!";
63
64	}
65
66	=head2 get_state
67
68	$store->get_state( $uid );
69
70	=cut
71
72	sub get_state {
73	my ( $self, $uid ) = @_;
74
75	my $file = "$path/$uid.yml";
76
77	if ( -e $file ) {
78	return LoadFile( $file );
79	}
80
81	return;
82	}
83
84	=head2 all_uids
85
86	my @uids = $store->all_uids;
87
88	=cut
89
90	sub all_uids {
91	my $self = shift;
92
93	opendir(my $d, $path) \|\| die "can't opendir $path: $!";
94	my @uids = grep { /\.yml$/ && -f "$path/$_" } readdir($d);
95	closedir $d;
96
97	return map { my $l = $_; $l =~ s/\.yml$//; $l } @uids;
98	}
99
100	1;