/[cvs]/nfo/perl/libs/Data/Transfer/Sync/StorageInterface.pm
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revision 1.2 by joko, Sun Feb 9 05:05:58 2003 UTC revision 1.5 by joko, Thu Feb 20 20:24:33 2003 UTC
# Line 6  Line 6 
6  ##  ##
7  ##    ----------------------------------------------------------------------------------------  ##    ----------------------------------------------------------------------------------------
8  ##    $Log$  ##    $Log$
9    ##    Revision 1.5  2003/02/20 20:24:33  joko
10    ##    + additional pre-flight checks
11    ##
12    ##    Revision 1.4  2003/02/14 14:14:38  joko
13    ##    + new code refactored here
14    ##
15    ##    Revision 1.3  2003/02/11 07:54:55  joko
16    ##    + modified module usage
17    ##    + debugging trials
18    ##
19  ##    Revision 1.2  2003/02/09 05:05:58  joko  ##    Revision 1.2  2003/02/09 05:05:58  joko
20  ##    + major structure changes  ##    + major structure changes
21  ##    - refactored code to sister modules  ##    - refactored code to sister modules
# Line 32  use mixin::with qw( Data::Transfer::Sync Line 42  use mixin::with qw( Data::Transfer::Sync
42    
43  use Data::Dumper;  use Data::Dumper;
44  use Hash::Merge qw( merge );  use Hash::Merge qw( merge );
45  use libdb qw( quotesql hash2Sql );  use libdb qw( hash2Sql );
46  use Data::Transform::Deep qw( hash2object refexpr2perlref );  use Data::Transform::Deep qw( hash2object );
47    
48    
49  # get logger instance  # get logger instance
# Line 57  sub _resolveNodeIdent { Line 67  sub _resolveNodeIdent {
67    my $self = shift;    my $self = shift;
68    my $descent = shift;    my $descent = shift;
69        
70    #print Dumper($self->{node}->{$descent});    # trace
71    #print Dumper($self);      #print Dumper($self->{node}->{$descent});
72        #print Dumper($self);
73        #exit;
74        
75    $logger->debug( __PACKAGE__ . "->_resolveNodeIdent( descent=$descent, accessorName=$self->{meta}->{$descent}->{accessorName} )" );    $logger->debug( __PACKAGE__ . "->_resolveNodeIdent( descent=$descent, accessorName=$self->{meta}->{$descent}->{accessorName} )" );
76        
77    # get to the payload    # get to the payload
# Line 70  sub _resolveNodeIdent { Line 83  sub _resolveNodeIdent {
83      #my $ident = $self->{$descent}->id($item);      #my $ident = $self->{$descent}->id($item);
84      #my $ident = $self->{meta}->{$descent}->{storage}->id($item);      #my $ident = $self->{meta}->{$descent}->{storage}->id($item);
85    
86      # trace
87        #print Dumper($self->{meta}->{$descent});
88        #exit;
89    
90      my $ident;      my $ident;
91      my $provider_method = $self->{meta}->{$descent}->{IdentProvider}->{method};      my $provider_method = $self->{meta}->{$descent}->{IdentProvider}->{method};
92      my $provider_arg = $self->{meta}->{$descent}->{IdentProvider}->{arg};      my $provider_arg = $self->{meta}->{$descent}->{IdentProvider}->{arg};
# Line 116  sub _statloadNode { Line 133  sub _statloadNode {
133    my $ident = shift;    my $ident = shift;
134    my $force = shift;    my $force = shift;
135    
136    $logger->debug( __PACKAGE__ . "->_statloadNode( descent=$descent ident=$ident )" );  =pod
137      #print "isa: ", UNIVERSAL::isa($self->{meta}->{$descent}->{storage}), "\n";
138    
139      # this seems to be the first time we access this side,
140      # so just check (again) for a valid storage handle
141      if (! ref $self->{meta}->{$descent}->{storage}) {
142        $logger->critical( __PACKAGE__ . "->_statloadNode( descent=$descent ident=$ident ): Storage handle undefined!" );
143        return;
144      }
145    =cut
146    
147      #$logger->debug( __PACKAGE__ . "->_statloadNode( descent=$descent ident=$ident )" );
148    
149    # fetch entry to retrieve checksum from    # fetch entry to retrieve checksum from
150    # was:    # was:
# Line 223  sub _touchNodeSet { Line 251  sub _touchNodeSet {
251          next;          next;
252        }        }
253            
254        # 2.b check storage handle type
255          my $dbType = $self->{meta}->{$descent}->{storage}->{locator}->{type};
256          if (!$dbType) {
257            $logger->critical( __PACKAGE__ . "->touchNodeSet: Storage ( descent='$descent', dbKey='$dbkey' ) has no 'dbType' - configuration-error?" );
258            next;
259          }
260    
261      # 3. check if descents (and nodes?) are actually available....      # 3. check if descents (and nodes?) are actually available....
262        # TODO:        # TODO:
263        # eventually pre-check mode of access-attempt (read/write) here to provide an "early-croak" if possible        # eventually pre-check mode of access-attempt (read/write) here to provide an "early-croak" if possible
# Line 231  sub _touchNodeSet { Line 266  sub _touchNodeSet {
266        # print Dumper($self->{meta}->{$descent}->{storage}->{locator});        # print Dumper($self->{meta}->{$descent}->{storage}->{locator});
267    
268    
       my $dbType = $self->{meta}->{$descent}->{storage}->{locator}->{type};  
269        my $nodeName = $self->{meta}->{$descent}->{nodeName};        my $nodeName = $self->{meta}->{$descent}->{nodeName};
270        my $accessorType = $self->{meta}->{$descent}->{accessorType};        my $accessorType = $self->{meta}->{$descent}->{accessorType};
271        my $accessorName = $self->{meta}->{$descent}->{accessorName};        my $accessorName = $self->{meta}->{$descent}->{accessorName};
# Line 488  sub _modifyNode { Line 522  sub _modifyNode {
522      #print Dumper($map_callbacks);      #print Dumper($map_callbacks);
523      foreach my $node (keys %{$map_callbacks->{write}}) {      foreach my $node (keys %{$map_callbacks->{write}}) {
524        #print Dumper($node);        #print Dumper($node);
525        my $perl_callback = $self->{meta}->{$descent}->{node} . '::' . $node . '_write';  
526          # ------------  half-redundant: make $self->callCallback($object, $value, $opts)
527          my $perl_callback = $self->{meta}->{$descent}->{nodeType} . '::' . $node . '_write';
528        my $evalstring = $perl_callback . '( { object => $object, value => $map_callbacks->{write}->{$node}, storage => $self->{meta}->{$descent}->{storage} } );';        my $evalstring = $perl_callback . '( { object => $object, value => $map_callbacks->{write}->{$node}, storage => $self->{meta}->{$descent}->{storage} } );';
529        #print $evalstring, "\n"; exit;        #print $evalstring, "\n"; exit;
530        eval($evalstring);        eval($evalstring);
531        if ($@) {        if ($@) {
532          $error = 1;          $error = 1;
533          print $@, "\n";          $logger->error( __PACKAGE__ . "->_modifyNode: $@" );
534            next;
535        }        }
536          # ------------  half-redundant: make $self->callCallback($object, $value, $opts)
537                
538        #print "after eval", "\n";        #print "after eval", "\n";
539                
# Line 530  sub _modifyNode { Line 568  sub _modifyNode {
568    
569  }  }
570    
571    sub _erase_all {
572      my $self = shift;
573      my $descent = shift;
574      #my $node = shift;
575      #print Dumper($self->{meta}->{$descent});
576      #my $node = $self->{meta}->{$descent}->{nodeName};
577      my $node = $self->{meta}->{$descent}->{accessorName};
578      $logger->debug( __PACKAGE__ . "->_erase_all( node $node )" );
579      $self->{meta}->{$descent}->{storage}->eraseAll($node);
580    }
581    
582  1;  1;
583    __END__
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