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## $Id: API.pm,v 1.1 2003/01/19 01:23:04 joko Exp $ |
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## |
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## Copyright (c) 2002 Andreas Motl <andreas.motl@ilo.de> |
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## |
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## See COPYRIGHT section in pod text below for usage and distribution rights. |
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## |
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## ---------------------------------------------------------------------------------------- |
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## $Log: API.pm,v $ |
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## Revision 1.1 2003/01/19 01:23:04 joko |
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## + new from Data/Transfer/Sync.pm |
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## |
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## ---------------------------------------------------------------------------------------- |
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package Data::Transfer::Sync::Metadata; |
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|
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use strict; |
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use warnings; |
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|
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use mixin::with qw( Data::Transfer::Sync ); |
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|
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|
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - main |
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|
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# get logger instance |
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my $logger = Log::Dispatch::Config->instance; |
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|
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use Data::Dumper; |
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|
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|
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sub _preCheckOptions { |
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|
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my $self = shift; |
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my $opts = shift; |
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|
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#print Dumper($opts); |
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#exit; |
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|
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# the type of the to-be-synced item |
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if (!$opts->{source}->{nodeType}) { |
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$logger->error( __PACKAGE__ . "->_preCheckOptions failed: Please specify \"source-type\"."); |
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return; |
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} |
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# the name of the (container-) node the items are listed in |
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if (!$opts->{source}->{nodeName}) { |
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$logger->error( __PACKAGE__ . "->_preCheckOptions failed: Please specify \"source-node\"."); |
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return; |
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} |
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|
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# a "map"-declaration which module to use for mapping- and/or lookup-purposes |
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if (!$opts->{map}) { |
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$logger->warning( __PACKAGE__ . "->_preCheckOptions: No mapping supplied - please check key 'map|mappings' in global configuration or specify additional argument '--mapping-module'."); |
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return; |
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} |
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if (!$opts->{map}->{moduleName}) { |
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$logger->warning( __PACKAGE__ . "->_preCheckOptions: Currently only perl-modules can provide mappings: Please specify one with '--mapping-module'."); |
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return; |
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} |
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|
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return 1; |
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|
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} |
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|
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# TODO: refactor!!! take this list from already established/given metadata |
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sub _buildMetadataV1 { |
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my $self = shift; |
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|
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# decompose identifiers for each partner |
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foreach ('source', 'target') { |
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|
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# get/set metadata for further processing |
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|
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# Partner and Node (e.g.: "L:Country" or "R:countries.csv") |
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if (my $item = $self->{args}->{$_}) { |
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my @item = split(':', $item); |
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$self->{meta}->{$_}->{dbkey} = $item[0]; |
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$self->{meta}->{$_}->{node} = $item[1]; |
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} |
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|
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# Filter |
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if (my $item_filter = $self->{args}->{$_ . '_filter'}) { |
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$self->{meta}->{$_}->{filter} = $item_filter; |
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} |
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|
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# IdentProvider |
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if (my $item_ident = $self->{args}->{$_ . '_ident'}) { |
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my @item_ident = split(':', $item_ident); |
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$self->{meta}->{$_}->{IdentProvider} = { method => $item_ident[0], arg => $item_ident[1] }; |
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} |
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|
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#print Dumper($self->{meta}); |
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|
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# TODO: ChecksumProvider |
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|
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# exclude properties/subnodes |
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if (my $item_exclude = $self->{args}->{$_ . '_exclude'}) { |
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$self->{meta}->{$_}->{subnodes_exclude} = $item_exclude; |
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} |
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|
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# TypeProvider |
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if (my $item_type = $self->{args}->{$_ . '_type'}) { |
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my @item_type = split(':', $item_type); |
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$self->{meta}->{$_}->{TypeProvider} = { method => $item_type[0], arg => $item_type[1] }; |
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} |
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|
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# Callbacks - writers (will be triggered _before_ writing to target) |
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if (my $item_writers = $self->{args}->{$_ . '_callbacks_write'}) { |
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my $descent = $_; # this is important since the following code inside the map wants to use its own context variables |
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map { $self->{meta}->{$descent}->{Callback}->{write}->{$_}++; } @$item_writers; |
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} |
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|
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# Callbacks - readers (will be triggered _after_ reading from source) |
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if (my $item_readers = $self->{args}->{$_ . '_callbacks_read'}) { |
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my $descent = $_; |
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map { $self->{meta}->{$descent}->{Callback}->{read}->{$_}++; } @$item_readers; |
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} |
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|
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# resolve storage objects |
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#$self->{$_} = $self->{container}->{storage}->{$self->{meta}->{$_}->{dbkey}}; |
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# relink references to metainfo |
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$self->{meta}->{$_}->{storage} = $self->{container}->{storage}->{$self->{meta}->{$_}->{dbkey}}; |
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#print "iiiiisprov: ", Dumper($self->{meta}->{$_}->{storage}), "\n"; |
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} |
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|
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} |
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|
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|
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# TODO: refactor (still)!!! take this list from already established/given metadata .... |
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# .... also internally: passing around and mungling these metadata doesn't make sense anymore. |
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sub _buildMetadataV2 { |
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my $self = shift; |
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|
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#print Dumper($self->{options}); |
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|
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# decompose identifiers for each partner |
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foreach ('source', 'target') { |
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|
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# get/set metadata for further processing |
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|
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$self->{options}->{$_}->{dbKey} ||= ''; |
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$self->{options}->{$_}->{nodeType} ||= ''; |
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$self->{options}->{$_}->{nodeName} ||= ''; |
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|
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# Partner and Node (e.g.: "L:Country" or "R:countries.csv") |
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$self->{meta}->{$_}->{dbKey} = $self->{options}->{$_}->{dbKey}; |
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$self->{meta}->{$_}->{nodeType} = $self->{options}->{$_}->{nodeType}; |
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$self->{meta}->{$_}->{nodeName} = $self->{options}->{$_}->{nodeName}; |
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|
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# Filter |
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if (my $item_filter = $self->{args}->{$_ . '_filter'}) { |
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$self->{meta}->{$_}->{filter} = $item_filter; |
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} |
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|
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# IdentProvider |
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if (my $item_ident = $self->{options}->{$_}->{ident}) { |
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my @item_ident = split(':', $item_ident); |
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$self->{meta}->{$_}->{IdentProvider} = { method => $item_ident[0], arg => $item_ident[1] }; |
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} |
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|
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# TODO: ChecksumProvider |
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|
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# exclude properties/subnodes |
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if (my $item_exclude = $self->{options}->{$_}->{exclude}) { |
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$self->{meta}->{$_}->{subnodes_exclude} = $item_exclude; |
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} |
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|
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# TypeProvider |
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if (my $item_type = $self->{args}->{$_ . '_type'}) { |
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my @item_type = split(':', $item_type); |
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$self->{meta}->{$_}->{TypeProvider} = { method => $item_type[0], arg => $item_type[1] }; |
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} |
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|
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# Callbacks - writers (will be triggered _before_ writing to target) |
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if (my $item_writers = $self->{args}->{$_ . '_callbacks_write'}) { |
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my $descent = $_; # this is important since the following code inside the map wants to use its own context variables |
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map { $self->{meta}->{$descent}->{Callback}->{write}->{$_}++; } @$item_writers; |
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} |
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|
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# Callbacks - readers (will be triggered _after_ reading from source) |
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if (my $item_readers = $self->{args}->{$_ . '_callbacks_read'}) { |
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my $descent = $_; |
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map { $self->{meta}->{$descent}->{Callback}->{read}->{$_}++; } @$item_readers; |
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} |
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|
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# resolve storage objects |
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$self->{meta}->{$_}->{storage} = $self->{options}->{$_}->{storage}->{handle}; |
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} |
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#print Dumper($self->{meta}); |
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return 1; |
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|
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} |
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|
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sub _buildFieldmappingV1 { |
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my $self = shift; |
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|
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# build mapping |
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# incoming: and Array of node map entries (Array or Hash) - e.g. |
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# [ 'source:item_name' => 'target:class_val' ] |
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# { source => 'event->startDateTime', target => 'begindate' } |
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foreach (@{$self->{args}->{mapping}}) { |
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if (ref $_ eq 'ARRAY') { |
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my @entry1 = split(':', $_->[0]); |
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my @entry2 = split(':', $_->[1]); |
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my $descent = []; |
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my $node = []; |
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$descent->[0] = $entry1[0]; |
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$descent->[1] = $entry2[0]; |
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$node->[0] = $entry1[1]; |
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$node->[1] = $entry2[1]; |
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push @{$self->{meta}->{$descent->[0]}->{childnodes}}, $node->[0]; |
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push @{$self->{meta}->{$descent->[1]}->{childnodes}}, $node->[1]; |
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} elsif (ref $_ eq 'HASH') { |
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foreach my $entry_key (keys %$_) { |
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my $entry_val = $_->{$entry_key}; |
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push @{$self->{meta}->{$entry_key}->{childnodes}}, $entry_val; |
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} |
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} |
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} |
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return 1; |
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} |
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