/[pxelator]/lib/PXElator/CouchDB.pm
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 205 by dpavlin, Wed Aug 12 19:49:36 2009 UTC revision 240 by dpavlin, Mon Aug 17 00:52:51 2009 UTC
# Line 8  use warnings; Line 8  use warnings;
8  use LWP::UserAgent;  use LWP::UserAgent;
9  use JSON;  use JSON;
10  use Data::Dump qw/dump/;  use Data::Dump qw/dump/;
11    use Time::HiRes qw/time/;
12    use Data::Structure::Util qw(unbless);
13    use Scalar::Util qw/blessed/;
14    use Storable qw/dclone/;
15    use Carp qw/carp/;
16    
17  sub new {  sub new {
18          my ($class, $host, $port, $options) = @_;          my ($class, $host, $port, $options) = @_;
# Line 56  sub request { Line 61  sub request {
61    
62  our $rev;  our $rev;
63    
64    sub rev {
65            my ($self,$url) = @_;
66            my $rev = $rev->{$url};
67            $rev  ||= eval { $self->get( $url )->{_rev} };
68    #       warn "# rev $url $rev";
69            return $rev;
70    }
71    
72  sub delete {  sub delete {
73          my ($self, $url) = @_;          my ($self, $url) = @_;
74    
75          $self->request(DELETE => $url);          $self->request(DELETE => $url . '?rev=' . $self->rev($url) );
76  }  }
77    
78  sub get {  sub get {
79          my ($self, $url) = @_;          my ($self, $url) = @_;
80    
81          from_json $self->request(GET => $url);          JSON->new->utf8->decode( $self->request(GET => $url) );
82  }  }
83    
84  sub put {  sub put {
85          my ($self, $url, $json) = @_;          my ($self, $url, $json) = @_;
         warn "put $url ",dump($json);  
86    
87          $rev->{$url} ||= eval { $self->get( $url )->{_rev} };          $json->{_rev} = $rev->{$url} if defined $rev->{$url};
88    
89          $json->{_rev} = $rev->{$url} if $rev->{$url};          my $data = dclone $json;
90            $data = unbless $data if blessed $data;
91    
92          $json = to_json $json if $json;  #       warn "# put ",dump( $data );
93    
94          $self->request(PUT => $url, $json);          $json = JSON->new->utf8->encode( $data );
95    
96            carp "# put ",$json;
97    
98            do {
99                    my $json = eval { $self->request(PUT => $url, $json) };
100                    if ( $@ ) {
101                            $rev->{$url} = $self->rev( $url );
102                            warn "refresh rev $url = ", $rev->{$url};
103                    } else {
104                            $rev->{$url} = JSON->new->decode( $json )->{rev};
105                    }
106            } until ! $@;
107  }  }
108    
109  sub post {  sub post {
# Line 87  sub post { Line 112  sub post {
112          $self->request(POST => $url, $json);          $self->request(POST => $url, $json);
113  }  }
114    
115    our $audit = __PACKAGE__->new;
116    
117    sub audit {
118            my $data = pop @_;
119    
120            my $url = join(' ', @_);
121            $url =~ s/\s+-\S+//g;   # remove command line options
122            $url =~ s/\W+/-/g;
123    
124            my ( $package, $file, $line, $sub ) = caller(1);
125            ( $package, undef, $line ) = caller(0) if ! $package || $package eq 'main';
126    
127            my $time = time();
128            $sub =~ s{^.+::}{}; # stip package name
129    
130            $data->{$_} = eval '$' . $_ foreach ( qw/time package line sub/ );
131    
132    #       carp 'audit ', dump($data);
133    
134            $time = int($time); # reduce granularity
135            $audit->put( "pxelator/$time.$package.$url", $data );
136    
137    }
138    
139  1;  1;
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