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## -------------------------------------------------------------------------------- |
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## $Id: Map.pm,v 1.2 2003/02/14 12:54:30 joko Exp $ |
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## -------------------------------------------------------------------------------- |
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## $Log: Map.pm,v $ |
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## Revision 1.2 2003/02/14 12:54:30 joko |
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## + established first code here |
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## |
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## Revision 1.1 2003/01/19 03:27:33 joko |
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## + initial check-in |
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## |
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1.1 |
## -------------------------------------------------------------------------------- |
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package Data::Transform::Map; |
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use strict; |
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use warnings; |
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use base 'DesignPattern::Object'; |
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use Data::Dumper; |
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use XML::Simple; |
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use Data::Transform::Encode qw( utf8_to_latin ); |
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use Data::Compare::Struct qw( getRelations getDifference ); |
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use Data::Transform::Deep qw( deep_copy ); |
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sub _init { |
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my $self = shift; |
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} |
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sub _touch { |
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my $self = shift; |
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if (!$self->{__meta}->{touched}++) { |
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$self->_readSelectDb(); |
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} |
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} |
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sub _readSelectDb { |
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my $self = shift; |
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my $data = XMLin($self->{filename}); |
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utf8_to_latin($data); |
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$self->{db} = $data; |
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} |
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sub getKeys { |
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my $self = shift; |
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my $source_key = shift; |
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my $source_type = shift; |
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$self->_touch(); |
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my $selection = $self->{db}->{source}->{$source_key}->{select} if $source_key; |
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if ($selection) { |
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my @selections = keys %$selection; |
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# TODO: filter @selections by $source_type |
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return @selections; |
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} |
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} |
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sub applyKeyFilter { |
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my $self = shift; |
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my $filterlist = shift; |
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my $data = deep_copy($self->{payload}); |
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# calculate intersection |
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my @list = keys %{$data}; |
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my $diff = getDifference(\@list, $filterlist); |
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# populate new (filtered) result just using intersected elements |
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my $result; |
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foreach my $elem (@{$diff}) { |
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#$result->{$elem} = $memory->{sports}->{$elem}; |
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delete $data->{$elem}; |
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} |
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return $data; |
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} |
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1; |
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__END__ |
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