/[webpac2]/trunk/lib/WebPAC/Store.pm
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revision 712 by dpavlin, Mon Sep 25 18:58:43 2006 UTC revision 713 by dpavlin, Tue Sep 26 12:42:49 2006 UTC
# Line 6  use strict; Line 6  use strict;
6  use base 'WebPAC::Common';  use base 'WebPAC::Common';
7  use Storable;  use Storable;
8  use File::Path;  use File::Path;
9  use Data::Dumper;  use Data::Dump qw/dump/;
10    
11  =head1 NAME  =head1 NAME
12    
# Line 14  WebPAC::Store - Store WebPAC data on dis Line 14  WebPAC::Store - Store WebPAC data on dis
14    
15  =head1 VERSION  =head1 VERSION
16    
17  Version 0.10  Version 0.11
18    
19  =cut  =cut
20    
21  our $VERSION = '0.10';  our $VERSION = '0.11';
22    
23  =head1 SYNOPSIS  =head1 SYNOPSIS
24    
# Line 59  in which cache file for C<data_structure Line 59  in which cache file for C<data_structure
59  If called with C<read_only> it will not disable caching if  If called with C<read_only> it will not disable caching if
60  called without write permission (but will die on C<save_ds>).  called without write permission (but will die on C<save_ds>).
61    
62  Mandatory parametar C<database> is used as subdirectory in database directory.  Optional parametar C<database> will be used used as subdirectory in path if no
63    database in specified when calling other functions.
64    
65  =cut  =cut
66    
# Line 88  Check if specified cache directory exist Line 89  Check if specified cache directory exist
89  If you pass false or zero value to this function, it will disable  If you pass false or zero value to this function, it will disable
90  cacheing.  cacheing.
91    
92  You can also example C<< $db->{path} >> to get current cache path.  You can also call this function to get current cache path.
93    
94     my $cache_path = $db->path;
95    
96  =cut  =cut
97    
# Line 96  sub path { Line 99  sub path {
99          my $self = shift;          my $self = shift;
100    
101          my $dir = shift;          my $dir = shift;
102            
103            return $self->{path} unless defined($dir);
104    
105          my $log = $self->_get_logger();          my $log = $self->_get_logger();
106    
# Line 131  sub path { Line 136  sub path {
136    
137  Retrive from disk one data_structure records usually using field 000 as key  Retrive from disk one data_structure records usually using field 000 as key
138    
139    my $ds = $db->load_ds( id => 42, prefix => 'name', database => 'ps' );    my $ds = $db->load_ds(
140                    database => 'ps',
141                    input => 'name',
142                    id => 42,
143      );
144    
145  This function will also perform basic sanity checking on returned  This function will also perform basic sanity checking on returned
146  data and disable caching if data is corrupted (or changed since last  data and disable caching if data is corrupted (or changed since last
147  update).  update).
148    
149  C<prefix> is used to differenciate different source input databases  C<input> is used to differenciate different source input databases
150  which are indexed in same database.  which are indexed in same database.
151    
152  C<database> if B<optional> argument which will override database name used when creating  C<database> if B<optional> argument which will override database name used when creating
# Line 168  sub load_ds { Line 177  sub load_ds {
177          $log->logconfess("got hash, but id [$id] isn't number") unless ($id =~ /^\d+$/);          $log->logconfess("got hash, but id [$id] isn't number") unless ($id =~ /^\d+$/);
178    
179          my $database = $args->{database} || $self->{database};          my $database = $args->{database} || $self->{database};
180          my $prefix = $args->{prefix} || '';          my $input = $args->{input} || '';
181    
182          $log->logconfess("can't find database name") unless ($database);          $log->logconfess("can't find database name") unless ($database);
183    
184          my $cache_file = "$cache_path/$database/$prefix/$id";          my $cache_file = "$cache_path/$database/$input/$id";
185          $cache_file =~ s#//#/#go;          $cache_file =~ s#//#/#go;
186    
187          $log->debug("using cache_file $cache_file");          $log->debug("using cache_file $cache_file");
# Line 201  sub load_ds { Line 210  sub load_ds {
210  Store data_structure on disk.  Store data_structure on disk.
211    
212    $db->save_ds(    $db->save_ds(
213            database => 'name',
214            input => 'name',
215          id => $ds->{000}->[0],          id => $ds->{000}->[0],
         prefix => 'name',  
216          ds => $ds,          ds => $ds,
217    );    );
218    
# Line 219  sub save_ds { Line 229  sub save_ds {
229    
230          return unless($self->{'path'});          return unless($self->{'path'});
231    
232          my $arg = {@_};          my $args = {@_};
233    
234          my $log = $self->_get_logger;          my $log = $self->_get_logger;
235            $log->debug("save_ds arguments:", dump( \@_ ));
236    
237          foreach my $f (qw/id ds/) {          foreach my $f (qw/id ds/) {
238                  $log->logconfess("need $f") unless ($arg->{$f});                  $log->logconfess("need $f") unless (defined($args->{$f}));
239          }          }
240    
241          my $database = $self->{database};          my $database = $args->{database} || $self->{database};
242          $log->logconfess("can't find database name") unless ($database);          $log->logconfess("can't find database name") unless ($database);
243    
244          my $prefix = $arg->{prefix} || '';          my $input = $args->{input} || '';
245    
246          my $cache_file = $self->{path} . '/' . $prefix . '/';          my $cache_file = $self->{path} . "/$database/$input/";
247          $cache_file =~ s#//#/#go;          $cache_file =~ s#//#/#go;
248    
249          mkpath($cache_file) unless (-d $cache_file);          mkpath($cache_file) unless (-d $cache_file);
250    
251          $cache_file .= $arg->{id};          $cache_file .= $args->{id};
252    
253          $log->debug("creating storable cache file $cache_file");          $log->debug("creating storable cache file $cache_file");
254    
255          return store {          return store {
256                  ds => $arg->{ds},                  ds => $args->{ds},
257                  id => $arg->{id},                  id => $args->{id},
258          }, $cache_file;          }, $cache_file;
259    
260  }  }
261    
262  =head2 save_lookup  =head2 save_lookup
263    
264    $db->save_lookup( $database, $input, $key, $lookup );    $db->save_lookup(
265            database => $database,
266            input => $input,
267            key => $key,
268            data => $lookup,
269      );
270    
271  =cut  =cut
272    
273  sub save_lookup {  sub save_lookup {
274          my $self = shift;          my $self = shift;
275          my ($database, $input, $key, $lookup) = @_;          my $args = {@_};
276    
277          my $log = $self->_get_logger;          my $log = $self->_get_logger;
278    
279          my $path = $self->{'path'} . "/lookup/$input";          foreach my $r (qw/input key data/) {
280                    $log->logconfess("need '$r'") unless defined($args->{$r});
281            }
282    
283            my $database = $args->{database} || $self->{database} || $log->logconfess("no database?");
284    
285            my $path = $self->{path} . "/lookup/$database/" . $args->{input};
286    
287          mkpath($path) unless (-d $path);          mkpath($path) unless (-d $path);
288    
289          $path .= "/$key";          $path .= "/" . $args->{key};
290    
291          if (store $lookup, $path) {          if (store $args->{data}, $path) {
292                  $log->info("saved lookup $path");                  $log->info("saved lookup $path");
293                    return 1;
294          } else {          } else {
295                  $log->logwarn("can't store lookup $database/$input/$key in $path: $!");                  $log->logwarn("can't store lookup $database/", $args->{input}, "/", $args->{key}, " in $path: $!");
296                    return undef;
297          }          }
   
           
298  }  }
299    
300    
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