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## |
## |
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## ---------------------------------------------------------------------------------------- |
## ---------------------------------------------------------------------------------------- |
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## $Log$ |
## $Log$ |
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## Revision 1.4 2003/02/14 14:06:20 joko |
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## + minor fix to old metadata structure |
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## |
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## Revision 1.3 2003/02/11 06:28:24 joko |
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## + changes to metadata structure |
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## |
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## Revision 1.2 2003/02/09 05:02:05 joko |
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## + major structure changes |
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## - refactored code to sister modules |
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## |
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## Revision 1.1 2003/01/20 16:58:46 joko |
## Revision 1.1 2003/01/20 16:58:46 joko |
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## + initial check-in: here they are.... |
## + initial check-in: here they are.... |
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## |
## |
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - main |
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - main |
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# get logger instance |
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my $logger = Log::Dispatch::Config->instance; |
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use Data::Dumper; |
use Data::Dumper; |
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use libdb qw( quotesql ); |
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use Data::Transform::Deep qw( refexpr2perlref ); |
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# get logger instance |
43 |
sub _preCheckOptions { |
my $logger = Log::Dispatch::Config->instance; |
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my $self = shift; |
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my $opts = shift; |
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#print Dumper($opts); |
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#exit; |
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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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# 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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return 1; |
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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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# decompose identifiers for each partner |
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foreach ('source', 'target') { |
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# get/set metadata for further processing |
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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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# 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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# 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 => $item_ident[1] }; |
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} |
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#print Dumper($self->{meta}); |
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# TODO: ChecksumProvider |
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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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# 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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# 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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# 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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# 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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# TODO: refactor (still)!!! take this list from already established/given metadata .... |
# 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. |
# .... also internally: passing around and mungling these metadata doesn't make sense anymore. |
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sub _buildMetadataV2 { |
sub options2metadata { |
48 |
my $self = shift; |
my $self = shift; |
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#print Dumper($self->{options}); |
$logger->debug( __PACKAGE__ . "->transformMetadata" ); |
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# trace |
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#print Dumper($self->{options}); |
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#print Dumper($self->{args_raw}); |
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#exit; |
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# decompose identifiers for each partner |
# decompose identifiers and write to metadata (for each descent) |
58 |
foreach ('source', 'target') { |
foreach ('source', 'target') { |
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# get/set metadata for further processing |
# get/set metadata for further processing |
63 |
$self->{options}->{$_}->{nodeType} ||= ''; |
$self->{options}->{$_}->{nodeType} ||= ''; |
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$self->{options}->{$_}->{nodeName} ||= ''; |
$self->{options}->{$_}->{nodeName} ||= ''; |
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# Partner and Node (e.g.: "L:Country" or "R:countries.csv") |
# Partner and Node (compare the V1-notations: "L:Country" or "R:countries.csv") |
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$self->{meta}->{$_}->{dbKey} = $self->{options}->{$_}->{dbKey}; |
$self->{meta}->{$_}->{dbKey} = $self->{options}->{$_}->{dbKey}; |
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$self->{meta}->{$_}->{nodeType} = $self->{options}->{$_}->{nodeType}; |
$self->{meta}->{$_}->{nodeType} = $self->{options}->{$_}->{nodeType}; |
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$self->{meta}->{$_}->{nodeName} = $self->{options}->{$_}->{nodeName}; |
$self->{meta}->{$_}->{nodeName} = $self->{options}->{$_}->{nodeName}; |
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# Filter |
# Filter |
72 |
if (my $item_filter = $self->{args}->{$_ . '_filter'}) { |
if (my $item_filter = $self->{options}->{$_}->{filter}) { |
73 |
$self->{meta}->{$_}->{filter} = $item_filter; |
$self->{meta}->{$_}->{filter} = $item_filter; |
74 |
} |
} |
75 |
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80 |
} |
} |
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# TODO: ChecksumProvider |
# TODO: ChecksumProvider |
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# already inside {options} - get it out from there and put into {meta} here! |
84 |
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# exclude properties/subnodes |
# exclude properties/subnodes |
86 |
if (my $item_exclude = $self->{options}->{$_}->{exclude}) { |
if (my $item_exclude = $self->{options}->{$_}->{exclude}) { |
88 |
} |
} |
89 |
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# TypeProvider |
# TypeProvider |
91 |
if (my $item_type = $self->{args}->{$_ . '_type'}) { |
# FIXME! this is still Vdeprecated!!! |
92 |
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if (my $item_type = $self->{options}->{$_ . '_type'}) { |
93 |
my @item_type = split(':', $item_type); |
my @item_type = split(':', $item_type); |
94 |
$self->{meta}->{$_}->{TypeProvider} = { method => $item_type[0], arg => $item_type[1] }; |
$self->{meta}->{$_}->{TypeProvider} = { method => $item_type[0], arg => $item_type[1] }; |
95 |
} |
} |
96 |
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97 |
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# trace |
98 |
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#print Dumper($self); |
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#exit; |
100 |
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101 |
# Callbacks - writers (will be triggered _before_ writing to target) |
# Callbacks - writers (will be triggered _before_ writing to target) |
102 |
if (my $item_writers = $self->{args}->{$_ . '_callbacks_write'}) { |
if (my $item_writers = $self->{options}->{$_}->{callbacks}->{write}) { |
103 |
my $descent = $_; # this is important since the following code inside the map wants to use its own context variables |
my $descent = $_; # this is important since the following code inside the map wants to use its own context variables |
104 |
map { $self->{meta}->{$descent}->{Callback}->{write}->{$_}++; } @$item_writers; |
map { $self->{meta}->{$descent}->{Callback}->{write}->{$_}++; } @$item_writers; |
105 |
} |
} |
106 |
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# Callbacks - readers (will be triggered _after_ reading from source) |
# Callbacks - readers (will be triggered _after_ reading from source) |
108 |
if (my $item_readers = $self->{args}->{$_ . '_callbacks_read'}) { |
if (my $item_readers = $self->{options}->{$_}->{callbacks}->{read}) { |
109 |
my $descent = $_; |
my $descent = $_; |
110 |
map { $self->{meta}->{$descent}->{Callback}->{read}->{$_}++; } @$item_readers; |
map { $self->{meta}->{$descent}->{Callback}->{read}->{$_}++; } @$item_readers; |
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} |
} |
112 |
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# resolve storage objects |
# resolve storage handles |
114 |
$self->{meta}->{$_}->{storage} = $self->{options}->{$_}->{storage}->{handle}; |
$self->{meta}->{$_}->{storage} = $self->{options}->{$_}->{storage}->{handle}; |
115 |
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116 |
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# transfer storage handle options to metadata |
117 |
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#map { $self->{meta}->{$_}->{isIdentAuthority} = 1 } @{$self->{id_authorities}}; |
118 |
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#map { $self->{meta}->{$_}->{isChecksumAuthority} = 1; } @{$self->{checksum_authorities}}; |
119 |
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#map { $self->{meta}->{$_}->{isWriteProtected} = 1; } @{$self->{write_protected}}; |
120 |
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#print Dumper($self->{options}->{$_}); |
121 |
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#exit; |
122 |
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$self->{meta}->{$_}->{isIdentAuthority} = $self->{options}->{$_}->{storage}->{handle}->{locator}->{sync}->{isIdentAuthority}; |
123 |
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$self->{meta}->{$_}->{isWriteProtected} = $self->{options}->{$_}->{storage}->{handle}->{locator}->{sync}->{isWriteProtected}; |
124 |
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$self->{meta}->{$_}->{isChecksumAuthority} = $self->{options}->{$_}->{storage}->{handle}->{locator}->{sync}->{isChecksumAuthority}; |
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126 |
} |
} |
127 |
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128 |
#print Dumper($self->{meta}); |
#print Dumper($self->{meta}); |
131 |
} |
} |
132 |
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133 |
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134 |
sub _buildFieldmappingV1 { |
sub options2metadata_accessor { |
135 |
my $self = shift; |
my $self = shift; |
136 |
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137 |
# build mapping |
$logger->debug( __PACKAGE__ . "->_transformMetadata_accessor" ); |
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# incoming: and Array of node map entries (Array or Hash) - e.g. |
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# [ 'source:item_name' => 'target:class_val' ] |
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# { source => 'event->startDateTime', target => 'begindate' } |
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foreach (@{$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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138 |
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139 |
} |
# build accessor metadata (for each descent) |
140 |
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foreach my $descent ('source', 'target') { |
141 |
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142 |
return 1; |
# the database type plays a role here to handle special nodesets: |
143 |
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# there may be a) childless/non-strict nodesets (e.g. a CSV-file) |
144 |
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# or b) normal ones - here the node-name corresponds more or less directly to |
145 |
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# the physical location in the storage hierarchy below us (e.g. MAPI or LDAP) |
146 |
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# or c) sets of nodes which are physically mapped by node-type (e.g. a RDBMS or a ODBMS) |
147 |
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my $dbType = $self->{meta}->{$descent}->{storage}->{locator}->{type}; |
148 |
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149 |
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# a, b and c are "accessor-type"s (of 'none', 'node-name', 'node-type') |
150 |
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# the following code resolves these types to '$accessorType' |
151 |
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# and properly sets '$accessorName' |
152 |
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153 |
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# don't continue for certain storage handlers |
154 |
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# HACK for DBD::CSV - re-enable for other DBDs |
155 |
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#next if $dbType eq 'DBI'; |
156 |
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157 |
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# get nodename |
158 |
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159 |
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# get node-name |
160 |
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my $nodename = $self->{meta}->{$descent}->{node}; # V1 |
161 |
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$nodename ||= $self->{meta}->{$descent}->{nodeName}; # V2 |
162 |
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163 |
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# check if nodename is actually a CODEref, execute it to get a mapped/filtered target-nodename |
164 |
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#print "----", ref $nodename, "\n"; |
165 |
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#if ($nodename =~ m/CODE/) { |
166 |
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# print Dumper($self); |
167 |
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# #exit; |
168 |
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# $nodename = $nodename->($nodename); |
169 |
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#} |
170 |
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171 |
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# determine nodeset accessor -type and -name |
172 |
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# defaults |
173 |
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my $accessorType = 'none'; |
174 |
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my $accessorName = ''; |
175 |
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176 |
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# if explicit address was given in options, just use it! |
177 |
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if (my $address = $self->{options}->{$descent}->{address}) { |
178 |
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$accessorType = 'direct-address'; |
179 |
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$accessorName = $address; |
180 |
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} |
181 |
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182 |
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# c) |
183 |
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elsif (($dbType eq 'DBI' || $dbType eq 'Tangram') && $self->{meta}->{$descent}->{nodeType}) { |
184 |
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$accessorType = 'node-type'; |
185 |
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$accessorName = $self->{meta}->{$descent}->{nodeType}; |
186 |
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} |
187 |
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188 |
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# b) |
189 |
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elsif ($nodename) { |
190 |
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$accessorType = 'node-name'; |
191 |
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$accessorName = $nodename; |
192 |
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} |
193 |
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194 |
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# write accessor information to metadata |
195 |
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$self->{meta}->{$descent}->{accessorType} = $accessorType; |
196 |
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$self->{meta}->{$descent}->{accessorName} = $accessorName; |
197 |
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198 |
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} |
199 |
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200 |
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# trace |
201 |
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#print Dumper($self->{meta}); |
202 |
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#print Dumper($self->{options}); |
203 |
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#exit; |
204 |
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205 |
} |
} |
206 |
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207 |
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208 |
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209 |
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sub buildAttributeMap { |
210 |
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211 |
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my $self = shift; |
212 |
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213 |
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# field-structure for building sql |
214 |
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# mapping of sql-fieldnames to object-attributes |
215 |
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$self->{node}->{map} = {}; |
216 |
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217 |
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# manually set ... |
218 |
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# ... object-id |
219 |
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$self->{node}->{map}->{$self->{meta}->{target}->{IdentProvider}->{arg}} = $self->{node}->{source}->{ident}; |
220 |
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# ... checksum |
221 |
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$self->{node}->{map}->{cs} = $self->{node}->{source}->{checksum}; |
222 |
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223 |
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#print "sqlmap: ", Dumper($self->{node}->{map}), "\n"; |
224 |
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225 |
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#print Dumper($self); |
226 |
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#exit; |
227 |
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228 |
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# for transferring flat structures via simple (1:1) mapping |
229 |
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# TODO: diff per property / property value |
230 |
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231 |
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#if ($self->{args}->{mapping}) { |
232 |
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# apply mapping from $self->{args}->{mapping} to $self->{node}->{map} |
233 |
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#foreach my $key (@{$self->{meta}->{source}->{childnodes}}) { |
234 |
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my @childnodes = @{$self->{meta}->{source}->{childnodes}}; |
235 |
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for (my $mapidx = 0; $mapidx <= $#childnodes; $mapidx++) { |
236 |
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#my $map_right = $self->{args}->{mapping}->{$key}; |
237 |
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238 |
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$self->{node}->{source}->{propcache} = {}; |
239 |
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$self->{node}->{target}->{propcache} = {}; |
240 |
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241 |
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# get property name |
242 |
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$self->{node}->{source}->{propcache}->{property} = $self->{meta}->{source}->{childnodes}->[$mapidx]; |
243 |
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$self->{node}->{target}->{propcache}->{property} = $self->{meta}->{target}->{childnodes}->[$mapidx]; |
244 |
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#print "map: $map_right", "\n"; |
245 |
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246 |
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# get property value |
247 |
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my $value; |
248 |
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249 |
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# detect for callback - old style - (maybe the better???) |
250 |
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if (ref($self->{node}->{target}->{map}) eq 'CODE') { |
251 |
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#$value = &$map_right($objClone); |
252 |
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} else { |
253 |
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# plain (scalar?) value |
254 |
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#$value = $objClone->{$map_right}; |
255 |
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$self->{node}->{source}->{propcache}->{value} = $self->{node}->{source}->{payload}->{$self->{node}->{source}->{propcache}->{property}}; |
256 |
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} |
257 |
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#$self->{node}->{map}->{$key} = $value; |
258 |
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259 |
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# detect expression |
260 |
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# for transferring deeply nested structures described by expressions |
261 |
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#print "val: $self->{node}->{source}->{propcache}->{value}", "\n"; |
262 |
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if ($self->{node}->{source}->{propcache}->{property} =~ s/^expr://) { |
263 |
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264 |
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# create an anonymous sub to act as callback target dispatcher |
265 |
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my $cb_dispatcher = sub { |
266 |
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#print "=============== CALLBACK DISPATCHER", "\n"; |
267 |
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#print "ident: ", $self->{node}->{source}->{ident}, "\n"; |
268 |
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#return $self->{node}->{source}->{ident}; |
269 |
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270 |
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}; |
271 |
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|
272 |
|
|
273 |
|
#print Dumper($self->{node}); |
274 |
|
|
275 |
|
# build callback map for helper function |
276 |
|
#my $cbmap = { $self->{meta}->{source}->{IdentProvider}->{arg} => $cb_dispatcher }; |
277 |
|
my $cbmap = {}; |
278 |
|
my $value = refexpr2perlref($self->{node}->{source}->{payload}, $self->{node}->{source}->{propcache}->{property}, $cbmap); |
279 |
|
$self->{node}->{source}->{propcache}->{value} = $value; |
280 |
|
} |
281 |
|
|
282 |
|
# encode values dependent on type of underlying storage here - expand cases... |
283 |
|
my $storage_type = $self->{meta}->{target}->{storage}->{locator}->{type}; |
284 |
|
if ($storage_type eq 'DBI') { |
285 |
|
# ...for sql |
286 |
|
# quotemeta? |
287 |
|
$self->{node}->{source}->{propcache}->{value} = quotesql($self->{node}->{source}->{propcache}->{value}); |
288 |
|
|
289 |
|
} elsif ($storage_type eq 'Tangram') { |
290 |
|
# iso? utf8 already possible? |
291 |
|
|
292 |
|
} elsif ($storage_type eq 'LDAP') { |
293 |
|
# TODO: encode utf8 here? |
294 |
|
|
295 |
|
} |
296 |
|
|
297 |
|
# store value to transfer map |
298 |
|
$self->{node}->{map}->{$self->{node}->{target}->{propcache}->{property}} = $self->{node}->{source}->{propcache}->{value}; |
299 |
|
|
300 |
|
} |
301 |
|
#} |
302 |
|
|
303 |
|
|
304 |
|
# TODO: $logger->dump( ... ); |
305 |
|
#$logger->debug( "sqlmap:" . "\n" . Dumper($self->{node}->{map}) ); |
306 |
|
#print "sqlmap: ", Dumper($self->{node}->{map}), "\n"; |
307 |
|
#print "entrystatus: ", Dumper($self->{node}), "\n"; |
308 |
|
|
309 |
|
} |
310 |
|
|
311 |
1; |
1; |