/[cvs]/nfo/perl/libs/Data/Transfer/Sync.pm
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revision 1.2 by joko, Sun Dec 1 04:43:25 2002 UTC revision 1.6 by jonen, Fri Dec 6 04:49:10 2002 UTC
# Line 6  Line 6 
6  ##  ##
7  ##    ----------------------------------------------------------------------------------------  ##    ----------------------------------------------------------------------------------------
8  ##    $Log$  ##    $Log$
9    ##    Revision 1.6  2002/12/06 04:49:10  jonen
10    ##    + disabled output-puffer here
11    ##
12    ##    Revision 1.5  2002/12/05 08:06:05  joko
13    ##    + bugfix with determining empty fields (Null) with DBD::CSV
14    ##    + debugging
15    ##    + updated comments
16    ##
17    ##    Revision 1.4  2002/12/03 15:54:07  joko
18    ##    + {import}-flag is now {prepare}-flag
19    ##
20    ##    Revision 1.3  2002/12/01 22:26:59  joko
21    ##    + minor cosmetics for logging
22    ##
23  ##    Revision 1.2  2002/12/01 04:43:25  joko  ##    Revision 1.2  2002/12/01 04:43:25  joko
24  ##    + mapping deatil entries may now be either an ARRAY or a HASH  ##    + mapping deatil entries may now be either an ARRAY or a HASH
25  ##    + erase flag is used now (for export-operations)  ##    + erase flag is used now (for export-operations)
# Line 37  use Data::Compare::Struct qw( getDiffere Line 51  use Data::Compare::Struct qw( getDiffere
51  # get logger instance  # get logger instance
52  my $logger = Log::Dispatch::Config->instance;  my $logger = Log::Dispatch::Config->instance;
53    
54    $| = 1;
55    
56  sub new {  sub new {
57    my $invocant = shift;    my $invocant = shift;
# Line 210  sub syncNodes { Line 225  sub syncNodes {
225    
226    # import flag means: prepare the source node to be syncable    # import flag means: prepare the source node to be syncable
227    # this is useful if there are e.g. no "ident" or "checksum" columns yet inside a DBI like (row-based) storage    # this is useful if there are e.g. no "ident" or "checksum" columns yet inside a DBI like (row-based) storage
228    if ($self->{args}->{import}) {    if ($self->{args}->{prepare}) {
229      $self->_prepareNode_MetaProperties('source');      $self->_prepareNode_MetaProperties('source');
230      $self->_prepareNode_DummyIdent('source');      $self->_prepareNode_DummyIdent('source');
231      #return;      #return;
# Line 249  sub _syncNodes { Line 264  sub _syncNodes {
264      $results ||= $self->_getNodeList('source', $filter);      $results ||= $self->_getNodeList('source', $filter);
265    }    }
266        
267    # get reference to node list from convenient method provided by corehandle    # get reference to node list from convenient method provided by CORE-HANDLE
268    #$results ||= $self->{source}->getListUnfiltered($self->{meta}->{source}->{node});    #$results ||= $self->{source}->getListUnfiltered($self->{meta}->{source}->{node});
269    #$results ||= $self->{meta}->{source}->{storage}->getListUnfiltered($self->{meta}->{source}->{node});    #$results ||= $self->{meta}->{source}->{storage}->getListUnfiltered($self->{meta}->{source}->{node});
270    $results ||= $self->_getNodeList('source');    $results ||= $self->_getNodeList('source');
# Line 327  sub _syncNodes { Line 342  sub _syncNodes {
342      my $identOK = $self->_resolveNodeIdent('source');      my $identOK = $self->_resolveNodeIdent('source');
343      #if (!$identOK && lc $self->{args}->{direction} ne 'import') {      #if (!$identOK && lc $self->{args}->{direction} ne 'import') {
344      if (!$identOK) {      if (!$identOK) {
345        $logger->critical( __PACKAGE__ . "->syncNodes: Can not synchronize: No ident found in source node, maybe try to \"import\" this node first." );        #print Dumper($self->{meta}->{source});
346          $logger->critical( __PACKAGE__ . "->syncNodes: No ident found in source node \"$self->{meta}->{source}->{node}\", try to \"prepare\" this node first?" );
347        return;        return;
348      }      }
349    
350  #print "statload", "\n";  #print "statload", "\n";
351  #print "ident: ", $self->{node}->{source}->{ident}, "\n";  #print "ident: ", $self->{node}->{source}->{ident}, "\n";
352    #print Dumper($self->{node});
353            
354      my $statOK = $self->_statloadNode('target', $self->{node}->{source}->{ident});      my $statOK = $self->_statloadNode('target', $self->{node}->{source}->{ident});
355    
356    #print Dumper($self->{node});
357            
358      # mark node as new either if there's no ident or if stat/load failed      # mark node as new either if there's no ident or if stat/load failed
359      if (!$statOK) {      if (!$statOK) {
# Line 421  sub _syncNodes { Line 440  sub _syncNodes {
440        $tc->{attempt_new}++;        $tc->{attempt_new}++;
441        $self->_doTransferToTarget('insert');        $self->_doTransferToTarget('insert');
442        # asymmetry: refetch node from target to re-calculate new ident and checksum (TODO: is IdentAuthority of relevance here?)        # asymmetry: refetch node from target to re-calculate new ident and checksum (TODO: is IdentAuthority of relevance here?)
443          #print Dumper($self->{node});
444        $self->_statloadNode('target', $self->{node}->{target}->{ident}, 1);        $self->_statloadNode('target', $self->{node}->{target}->{ident}, 1);
445        $self->_readChecksum('target');        $self->_readChecksum('target');
446    
# Line 446  sub _syncNodes { Line 466  sub _syncNodes {
466      # change ident in source (take from target), if transfer was ok and target is an IdentAuthority      # change ident in source (take from target), if transfer was ok and target is an IdentAuthority
467      # this is (for now) called a "retransmit" indicated by a "r"-character when verbosing      # this is (for now) called a "retransmit" indicated by a "r"-character when verbosing
468      if ($self->{node}->{status}->{ok} && $self->{meta}->{target}->{storage}->{isIdentAuthority}) {      if ($self->{node}->{status}->{ok} && $self->{meta}->{target}->{storage}->{isIdentAuthority}) {
469          print "r" if $self->{verbose};
470        #print Dumper($self->{meta});        #print Dumper($self->{meta});
471        #print Dumper($self->{node});        #print Dumper($self->{node});
472        #exit;        #exit;
473        $self->_doModifySource_IdentChecksum($self->{node}->{target}->{ident});        $self->_doModifySource_IdentChecksum($self->{node}->{target}->{ident});
       print "r" if $self->{verbose};  
474      }      }
475    
476      print ":" if $self->{verbose};      print ":" if $self->{verbose};
# Line 460  sub _syncNodes { Line 480  sub _syncNodes {
480    print "\n" if $self->{verbose};    print "\n" if $self->{verbose};
481        
482    # build user-message from some stats    # build user-message from some stats
483      my $msg = "stats: $tc";      my $msg = "statistics: $tc";
484            
485      if ($tc->{error_per_row}) {      if ($tc->{error_per_row}) {
486        $msg .= "\n";        $msg .= "\n";
# Line 488  sub _dumpCompact { Line 508  sub _dumpCompact {
508      my $item = {};      my $item = {};
509      foreach my $key (keys %$_) {      foreach my $key (keys %$_) {
510        my $val = $_->{$key};        my $val = $_->{$key};
511    
512    #print Dumper($val);
513    
514        if (ref $val eq 'Set::Object') {        if (ref $val eq 'Set::Object') {
515          #print "========================= SET", "\n";          #print "========================= SET", "\n";
516          #print Dumper($val);  #print Dumper($val);
517          #print Dumper($val->members());          #print Dumper($val->members());
518          #$val = $val->members();          #$val = $val->members();
519          #$vars->[$count]->{$key} = $val->members() if $val->can("members");          #$vars->[$count]->{$key} = $val->members() if $val->can("members");
520          #$item->{$key} = $val->members() if $val->can("members");          #$item->{$key} = $val->members() if $val->can("members");
521          $item->{$key} = $val->members();          $item->{$key} = $val->members();
522          #print Dumper($vars->[$count]->{$key});          #print Dumper($vars->[$count]->{$key});
523    
524        } else {        } else {
525          $item->{$key} = $val;          $item->{$key} = $val;
526        }        }
527    
528      }      }
529      push @data, $item;      push @data, $item;
530      $count++;      $count++;
531    }    }
532    
533  #print "Dump:", "\n";  #print "Dump:", Dumper(@data), "\n";
 #print Dumper(@data);  
534    
535    $Data::Dumper::Indent = 0;    $Data::Dumper::Indent = 0;
536    my $result = Dumper(@data);    my $result = Dumper(@data);
537    $Data::Dumper::Indent = 2;    $Data::Dumper::Indent = 2;
538    return $result;    return $result;
539      
540  }  }
541    
542    
# Line 741  sub _modifyNode { Line 766  sub _modifyNode {
766      }      }
767    }    }
768        
769      
770      #print Dumper($self->{meta});
771    
772    # DBI speaks SQL    # DBI speaks SQL
773    if ($self->{meta}->{$descent}->{storage}->{locator}->{type} eq 'DBI') {    if ($self->{meta}->{$descent}->{storage}->{locator}->{type} eq 'DBI') {
# Line 842  sub _modifyNode { Line 869  sub _modifyNode {
869        hash2object($object, $map);        hash2object($object, $map);
870    
871        # ... and re-update@orm.        # ... and re-update@orm.
872    #print Dumper($object);
873        $self->{meta}->{$descent}->{storage}->update($object);        $self->{meta}->{$descent}->{storage}->update($object);
874    
875        # asymmetry: get ident after insert        # asymmetry: get ident after insert
876        # TODO:        # TODO:
877        #   - just do this if it is an IdentAuthority        #   - just do this if it is an IdentAuthority
878        #   - use IdentProvider metadata here        #   - use IdentProvider metadata here
879        $self->{node}->{$descent}->{ident} = $self->{meta}->{$descent}->{storage}->id($object);  #print Dumper($self->{meta}->{$descent});
880          my $oid = $self->{meta}->{$descent}->{storage}->id($object);
881    #print "oid: $oid", "\n";
882          $self->{node}->{$descent}->{ident} = $oid;
883    
884    
885      } elsif (lc $action eq 'update') {      } elsif (lc $action eq 'update') {
# Line 945  sub _statloadNode { Line 976  sub _statloadNode {
976        #print "\n", "Attempt to fetch entry implicitely by ident failed: no ident given! This may result in an insert if no write-protection is in the way.", "\n";        #print "\n", "Attempt to fetch entry implicitely by ident failed: no ident given! This may result in an insert if no write-protection is in the way.", "\n";
977        return;        return;
978      }      }
979        
980        # patch for DBD::CSV
981        if ($ident && $ident eq 'Null') {
982          return;
983        }
984    
985      my $result = $self->{meta}->{$descent}->{storage}->sendQuery({      my $result = $self->{meta}->{$descent}->{storage}->sendQuery({
986        node => $self->{meta}->{$descent}->{node},        node => $self->{meta}->{$descent}->{node},
# Line 959  sub _statloadNode { Line 995  sub _statloadNode {
995      my $entry = $result->getNextEntry();      my $entry = $result->getNextEntry();
996      my $status = $result->getStatus();      my $status = $result->getStatus();
997    
998    #print Dumper($status);
999        
1000      # TODO: enhance error handling (store inside tc)      # TODO: enhance error handling (store inside tc)
1001      #if (!$row) {      #if (!$row) {
1002      #  print "\n", "row error", "\n";      #  print "\n", "row error", "\n";
1003      #  next;      #  next;
1004      #}      #}
1005      if (($status && $status->{err}) || !$entry) {  
1006        #$logger->critical( __PACKAGE__ . "->_loadNode (ident=\"$ident\") failed" );      # these checks run before actually loading payload- and meta-data to node-container
1007        return;      
1008      }        # 1st level - hard error
1009          if ($status && $status->{err}) {
1010            $logger->debug( __PACKAGE__ . "->_statloadNode (ident=\"$ident\") failed - hard error (that's ok)" );
1011            return;
1012          }
1013      
1014          # 2nd level - logical (empty/notfound) error
1015          if (($status && $status->{empty}) || !$entry) {
1016            $logger->debug( __PACKAGE__ . "->_statloadNode (ident=\"$ident\") failed - logical error (that's ok)" );
1017            #print "no entry (logical)", "\n";
1018            return;
1019          }
1020    
1021    #print Dumper($entry);
1022    
1023      # was:      # was:
1024      # $self->{node}->{$descent}->{ident} = $ident;        # $self->{node}->{$descent}->{ident} = $ident;  
1025      # is:      # is:
1026      # TODO: re-resolve ident from entry via metadata "IdentProvider"      # TODO: re-resolve ident from entry via metadata "IdentProvider" here - like elsewhere
1027      $self->{node}->{$descent}->{ident} = $ident;      $self->{node}->{$descent}->{ident} = $ident;
1028      $self->{node}->{$descent}->{payload} = $entry;      $self->{node}->{$descent}->{payload} = $entry;
1029    
1030    }    }
1031        
1032    return 1;    return 1;
# Line 997  sub _doModifySource_IdentChecksum { Line 1050  sub _doModifySource_IdentChecksum {
1050      $self->{meta}->{source}->{IdentProvider}->{arg} => $ident_new,      $self->{meta}->{source}->{IdentProvider}->{arg} => $ident_new,
1051      cs => $self->{node}->{target}->{checksum},      cs => $self->{node}->{target}->{checksum},
1052    };    };
1053    #print Dumper($map);  
1054    #print Dumper($self->{node});  #print Dumper($map);
1055    #exit;  #print Dumper($self->{node});
1056    #exit;
1057    
1058    $self->_modifyNode('source', 'update', $map);    $self->_modifyNode('source', 'update', $map);
1059  }  }
1060    
# Line 1081  sub _prepareNode_DummyIdent { Line 1136  sub _prepareNode_DummyIdent {
1136      }      }
1137      my $crit = join ' AND ', @crits;      my $crit = join ' AND ', @crits;
1138      print "p" if $self->{verbose};      print "p" if $self->{verbose};
1139    
1140    #print Dumper($map);
1141    #print Dumper($crit);
1142    
1143      $self->_modifyNode($descent, 'update', $map, $crit);      $self->_modifyNode($descent, 'update', $map, $crit);
1144      $i++;      $i++;
1145    }    }
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