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package WebPAC::Input::XML; |
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|
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use warnings; |
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use strict; |
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|
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use WebPAC::Input; |
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use base qw/WebPAC::Common/; |
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|
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use XML::Simple; |
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use File::Find; |
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|
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use Data::Dump qw/dump/; |
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|
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=head1 NAME |
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|
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WebPAC::Input::XML - support for reading XML files |
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|
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=cut |
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|
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our $VERSION = '0.01'; |
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|
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=head1 FUNCTIONS |
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|
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=head2 new |
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|
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Returns new low-level input API object |
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|
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my $input = new WebPAC::Input::XML( |
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path => '/path/to/XML/records.txt' |
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filter => sub { |
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my ($l,$field_nr) = @_; |
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# do something with $l which is line of input file |
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return $l; |
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}, |
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} |
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|
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Options: |
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|
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=over 4 |
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|
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=item path |
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|
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path to directory with xml files ending in C<.xml> |
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|
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=back |
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|
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=cut |
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|
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sub new { |
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my $class = shift; |
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my $self = {@_}; |
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bless($self, $class); |
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|
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my $arg = {@_}; |
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|
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my $log = $self->_get_logger(); |
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|
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$log->logdie("can't find path ", $arg->{path}, ": $!\n") unless -d $arg->{path}; |
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|
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$log->info("collecting xml files from ", $arg->{path}); |
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|
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my @files; |
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|
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find({ |
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wanted => sub { |
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my $path = $File::Find::name; |
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return unless -f $path && $path =~ m/\.xml$/i; |
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push @files, $path; |
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}, |
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follow => 1, |
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}, $arg->{path} ); |
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|
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$log->info("found ", $#files + 1, " XML files in ", $arg->{path}); |
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|
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$self->{_files} = \@files; |
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|
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$self ? return $self : return undef; |
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} |
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|
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=head2 fetch_rec |
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|
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Return record with ID C<$mfn> from database |
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|
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my $rec = $input->fetch_rec( $mfn, $filter_coderef ); |
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|
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=cut |
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|
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sub fetch_rec { |
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my $self = shift; |
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|
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my ( $mfn, $filter_coderef ) = @_; |
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|
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my $path = $self->{_files}->[ $mfn - 1 ] || return; |
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|
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my $log = $self->_get_logger(); |
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|
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my $xml = XMLin( |
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$path, |
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# ForceArray => 1, |
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# ForceContent => 1, |
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# KeepRoot => 1, |
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# SuppressEmpty => 1, # '' undef |
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|
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) || $log->logdie("can't open $path: $!"); |
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|
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warn "### fetch_rec( $mfn ) => $path => xml is ",dump($xml); |
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|
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# add mfn |
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$xml->{'000'} = [ $mfn ]; |
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|
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return $xml; |
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} |
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|
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|
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=head2 size |
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|
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Return number of records in database |
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|
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my $size = $input->size; |
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|
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=cut |
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|
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sub size { |
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my $self = shift; |
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return $#{$self->{_files}} + 1; |
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} |
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|
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=head1 AUTHOR |
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|
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Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >> |
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|
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=head1 COPYRIGHT & LICENSE |
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|
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Copyright 2007 Dobrica Pavlinusic, All Rights Reserved. |
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|
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This program is free software; you can redistribute it and/or modify it |
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under the same terms as Perl itself. |
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|
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=cut |
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|
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1; |