1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
package Net::Riak;
# ABSTRACT: Interface to Riak
use Moose;
use Net::Riak::Client;
use Net::Riak::Bucket;
with 'Net::Riak::Role::MapReduce';
has client => (
is => 'rw',
isa => 'Net::Riak::Client',
required => 1,
handles => [qw/is_alive http_request http_response/]
);
sub BUILDARGS {
my ($class, %args) = @_;
my $client = Net::Riak::Client->new(%args);
$args{client} = $client;
\%args;
}
sub bucket {
my ($self, $name) = @_;
my $bucket = Net::Riak::Bucket->new(name => $name, client => $self->client);
$bucket;
}
1;
=head1 SYNOPSIS
my $client = Net::Riak->new(
host => 'http://10.0.0.40:8098',
ua_timeout => 900
);
my $bucket = $client->bucket('blog');
my $obj = $bucket->new_object('new_post', {title => 'foo', content => 'bar'});
$obj->store;
$obj = $bucket->get('new_post');
say "title for ".$obj->key." is ".$obj->data->{title};
my $req = $client->http_request; # last request
$client->http_response # last response
=head1 DESCRIPTION
=head2 ATTRIBUTES
=over 4
=item B<host>
URL of the node (default 'http://127.0.0.1:8098'). If your ring is composed with more than one node, you can configure the client to hit more than one host, instead of hitting always the same node. For this, you can do one of the following:
=over 4
=item B<all nodes equals>
my $riak = Net::Riak->new(
host => [
'http://10.0.0.40:8098',
'http://10.0.0.41:8098'
]
);
=item B<give weight to nodes>
my $riak = Net::Riak->new(
host => [
{node => 'http://10.0.0.40:8098', weight => '0.2'},
{node => 'http://10.0.0.41:8098', weight => '0.8'}
]
);
=back
Now, when a request is made, a node is picked at random, according to weight.
=item B<prefix>
Interface prefix (default 'riak')
=item B<mapred_prefix>
MapReduce prefix (default 'mapred')
=item B<r>
R value setting for this client (default 2)
=item B<w>
W value setting for this client (default 2)
=item B<dw>
DW value setting for this client (default 2)
=item B<client_id>
client_id for this client
=back
=item B<ua_timeout>
timeout for L<LWP::UserAgent> in seconds, defaults to 3.
=head1 METHODS
=head2 bucket
my $bucket = $client->bucket($name);
Get the bucket by the specified name. Since buckets always exist, this will always return a L<Net::Riak::Bucket>
=head2 is_alive
if (!$client->is_alive) {
...
}
Check if the Riak server for this client is alive
=head2 add
my $map_reduce = $client->add('bucket_name', 'key');
Start assembling a Map/Reduce operation
=head2 link
my $map_reduce = $client->link();
Start assembling a Map/Reduce operation
=head2 map
my $map_reduce = $client->add('bucket_name', 'key')->map("function ...");
Start assembling a Map/Reduce operation
=head2 reduce
my $map_reduce = $client->add(..)->map(..)->reduce("function ...");
Start assembling a Map/Reduce operation
=method http_request
Returns the HTTP::Request object from the last request
=method http_response
Returns a HTTP::Response object from the last request
=head2 SEE ALSO
Net::Riak::MapReduce
=cut
|
