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## ------------------------------------------------------------------------ |
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## $Id: Files.pm,v 1.6 2003/05/13 16:34:26 joko Exp $ |
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## ------------------------------------------------------------------------ |
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## $Log: Files.pm,v $ |
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## Revision 1.6 2003/05/13 16:34:26 joko |
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## don't use GUID when building xpq filter |
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## |
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## Revision 1.5 2003/05/13 08:06:13 joko |
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## filled "sub sendQuery": query xml document via XPath |
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## |
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## Revision 1.4 2003/02/11 05:17:24 joko |
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## + fix: childnode metadata now gets set propery |
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## |
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## Revision 1.3 2003/01/19 03:15:43 joko |
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## + modified header |
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## |
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## Revision 1.2 2003/01/19 02:14:11 joko |
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## + proposal for more abstract filesystem-query-interface |
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## |
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## Revision 1.1 2002/12/03 15:52:53 joko |
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## + initial check-in |
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## ------------------------------------------------------------------------ |
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|
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|
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package Data::Storage::Handler::Files; |
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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 base ("Data::Storage::Handler::Abstract"); |
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|
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use Data::Dumper; |
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#use Data::Storage::Result::Files; |
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use Data::Storage::Result::Hash; |
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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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|
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sub getMetaInfo { |
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my $self = shift; |
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$logger->debug( __PACKAGE__ . "->getMetaInfo()" ); |
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return; |
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return { |
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'disconnectMethod' => 'disconnect', |
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}; |
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} |
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|
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sub connect { |
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my $self = shift; |
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#$self->{COREHANDLE} = $self; |
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#$self->{COREHANDLE} = 1; |
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} |
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|
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sub getChildNodes { |
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my $self = shift; |
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#my @nodes; |
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#print "======\n"; |
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$logger->debug( __PACKAGE__ . "->getChildNodes()" ); |
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#print Dumper($self->{locator}); |
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my @keys = keys %{$self->{locator}->{files}}; |
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$self->{meta}->{childnodes} = \@keys; |
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return $self->{locator}->{files}; |
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} |
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|
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sub getFileByName { |
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my $self = shift; |
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my $name = shift; |
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return $self->{locator}->{files}->{$name}; |
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} |
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|
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# Query xml file by default. |
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# FIXME: Move most code one level deeper into Data::Storage::Handler::XML. |
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sub sendQuery { |
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# transform query to searchrules |
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# addSearchRule( ... ) |
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# addSearchRule( ... ) |
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# addSearchRule( ... ) |
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# runSearch( ... ) |
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# returnSearchResult( ... ) |
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|
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my $self = shift; |
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my $query = shift; |
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|
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#print STDERR __PACKAGE__ . ": sendQuery(" . Dumper($query) . ")", "\n"; |
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|
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my $file = $query->{node}; |
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# NEW [2003-04-23]: DataItem compatibility |
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$file ||= $query->{options}->{GUID}; |
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|
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if (!$file) { |
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print "Filename was empty!", "\n"; |
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return; |
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} |
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|
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# --- from OEF::YAA::Jobs --- |
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# issue the query |
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|
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# V1 - from YAA::Xyz, hardcoded, won't work here |
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#my $xpq = "*/target[\@name=\"$name\"]"; |
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|
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# V2 - more generic: XPath query builder (three way fallback) |
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my $xpq; |
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|
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$xpq = $query->{options}->{filter}->{xpq} if ref $query->{options}->{filter}; |
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|
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# map a GUID to a xml-name attribute which is searched anywhere ('*/*') |
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#$xpq = '*/' . $query->{options}->{GUID} if (!$xpq && $query->{options}->{GUID}); |
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#$xpq = '*/*[@name="' . $query->{options}->{GUID} . '"]' if (!$xpq && $query->{options}->{GUID}); |
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|
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$xpq = '*' if !$xpq; |
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#print "xpq: $xpq", "\n"; |
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|
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#$xpq = '*/source/select[@key="SOC"]'; |
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# decode somehow(?) special escaped quote (") which could reach us as (e.g.): |
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# 'xpq' => '*[@key=\\"SOC\\"]' |
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$xpq =~ s!\\"!"!g; |
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|
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my $mdbe = DesignPattern::Object->fromPackage('Data::Storage::Handler::XML', filename => $file ); |
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$mdbe->sendQuery($xpq); |
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|
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# V1 - first attempts |
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#my $subtree = $mdbe->toSimpleTree(); |
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|
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# V2 - will cause major behavior change in result! |
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$mdbe->circumflex('result'); |
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my $subtree = $mdbe->toEasyTree(); |
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$subtree = $subtree->{content}->[0]; |
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# --- from OEF::YAA::Jobs --- |
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|
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# V1 - direct mode |
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#print STDERR "subtree: " . Dumper($subtree); |
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#return $subtree; |
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|
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#print Dumper($query); |
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#print STDERR "file: $file", "\n"; |
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#print STDERR "xpq: $xpq", "\n"; |
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|
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# V2 - wrapped via a result object providing a more generic api to e.g. iterate through items |
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my $result = Data::Storage::Result::Hash->new( RESULTHANDLE => $subtree ); |
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return $result; |
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|
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} |
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|
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sub addSearchRule { |
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|
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} |
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|
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sub runSearch { |
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|
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} |
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|
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1; |
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__END__ |
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