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package WebPAC; |
package WebPAC; |
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use warnings; |
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use strict; |
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use Carp; |
use Carp; |
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use Text::Iconv; |
use Text::Iconv; |
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use Config::IniFiles; |
use Config::IniFiles; |
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use XML::Simple; |
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use Template; |
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use Data::Dumper; |
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=head1 NAME |
=head1 NAME |
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=cut |
=cut |
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# mapping between data type and tag which specify |
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# format in XML file |
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my %type2tag = ( |
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'isis' => 'isis', |
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# 'excel' => 'column', |
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# 'marc' => 'marc', |
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# 'feed' => 'feed' |
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); |
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sub new { |
sub new { |
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my $class = shift; |
my $class = shift; |
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my $self = {@_}; |
my $self = {@_}; |
61 |
# read global.conf |
# read global.conf |
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# |
# |
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$self->{global_config_file} = new Config::IniFiles( -file => 'global.conf' ) || croak "can't open 'global.conf'"; |
my $config = new Config::IniFiles( -file => 'global.conf' ) || croak "can't open 'global.conf'"; |
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66 |
# read global config parametars |
# read global config parametars |
67 |
foreach my $var (qw( |
foreach my $var (qw( |
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dbi_passwd |
dbi_passwd |
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show_progress |
show_progress |
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my_unac_filter |
my_unac_filter |
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output_template |
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)) { |
)) { |
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$self->{global_config}->{$var} = $self->{global_config_file}->val('global', $var); |
$self->{'global_config'}->{$var} = $config->val('global', $var); |
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} |
} |
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# |
# |
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$self->{indexer_config_file} = new Config::IniFiles( -file => $self->{config_file} ) || croak "can't open '$self->{config_file}'"; |
$self->{indexer_config_file} = new Config::IniFiles( -file => $self->{config_file} ) || croak "can't open '$self->{config_file}'"; |
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# read global config parametars |
# create UTF-8 convertor for import_xml files |
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foreach my $var (qw( |
$self->{'utf2cp'} = Text::Iconv->new('UTF-8' ,$self->{'code_page'}); |
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dbi_dbd |
|
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dbi_dsn |
# create Template toolkit instance |
89 |
dbi_user |
$self->{'tt'} = Template->new( |
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dbi_passwd |
INCLUDE_PATH => ($self->{'global_config_file'}->{'output_template'} || './output_template'), |
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show_progress |
# FILTERS => { |
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my_unac_filter |
# 'foo' => \&foo_filter, |
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)) { |
# }, |
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$self->{global_config}->{$var} = $self->{global_config_file}->val('global', $var); |
EVAL_PERL => 1, |
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} |
); |
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return $self; |
return $self; |
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} |
} |
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If optional parametar C<limit_mfn> is set, it will read just 500 records |
If optional parametar C<limit_mfn> is set, it will read just 500 records |
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from database in example above. |
from database in example above. |
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Returns number of last record read into memory (size of database, really). |
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C<lookup> argument is an array of lookups to create. Each lookup must have C<key> and |
C<lookup> argument is an array of lookups to create. Each lookup must have C<key> and |
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C<val>. Optional parametar C<eval> is perl code to evaluate before storing |
C<val>. Optional parametar C<eval> is perl code to evaluate before storing |
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value in index. |
value in index. |
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'val' => 'v900' }, |
'val' => 'v900' }, |
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] |
] |
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Returns number of last record read into memory (size of database, really). |
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=cut |
=cut |
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sub open_isis { |
sub open_isis { |
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# create Text::Iconv object |
# create Text::Iconv object |
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my $cp = Text::Iconv->new($code_page,$self->{'code_page'}); |
my $cp = Text::Iconv->new($code_page,$self->{'code_page'}); |
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print STDERR "reading ISIS database '",$arg->{'filename'},"'\n" if ($self->{'debug'}); |
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my $isis_db = OpenIsis::open($arg->{'filename'}); |
my $isis_db = OpenIsis::open($arg->{'filename'}); |
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my $maxmfn = OpenIsis::maxRowid( $isis_db ) || 1; |
my $maxmfn = OpenIsis::maxRowid( $isis_db ) || 1; |
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$maxmfn = $self->{limit_mfn} if ($self->{limit_mfn}); |
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print STDERR "processing $maxmfn records...\n" if ($self->{'debug'}); |
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# read database |
# read database |
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for (my $mfn = 1; $mfn <= $maxmfn; $mfn++) { |
for (my $mfn = 1; $mfn <= $maxmfn; $mfn++) { |
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} |
} |
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$self->{'current_mfn'} = 1; |
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# store max mfn and return it. |
# store max mfn and return it. |
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return $self->{'max_mfn'} = $maxmfn; |
return $self->{'max_mfn'} = $maxmfn; |
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} |
} |
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=head2 fetch_rec |
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Fetch next record from database. It will also display progress bar (once |
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it's implemented, that is). |
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my $rec = $webpac->fetch_rec; |
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=cut |
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sub fetch_rec { |
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my $self = shift; |
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my $mfn = $self->{'current_mfn'}++ || confess "it seems that you didn't load database!"; |
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if ($mfn > $self->{'max_mfn'}) { |
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$self->{'current_mfn'} = $self->{'max_mfn'}; |
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return; |
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} |
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return $self->{'data'}->{$mfn}; |
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} |
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=head2 open_import_xml |
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Read file from C<import_xml/> directory and parse it. |
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$webpac->open_import_xml(type => 'isis'); |
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=cut |
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sub open_import_xml { |
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my $self = shift; |
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my $arg = {@_}; |
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confess "need type to load file from import_xml/" if (! $arg->{'type'}); |
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$self->{'type'} = $arg->{'type'}; |
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my $type_base = $arg->{'type'}; |
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$type_base =~ s/_.*$//g; |
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$self->{'tag'} = $type2tag{$type_base}; |
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print STDERR "using type '",$self->{'type'},"' tag <",$self->{'tag'},">\n" if ($self->{'debug'}); |
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my $f = "./import_xml/".$self->{'type'}.".xml"; |
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confess "import_xml file '$f' doesn't exist!" if (! -e "$f"); |
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print STDERR "reading '$f'\n" if ($self->{'debug'}); |
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$self->{'import_xml'} = XMLin($f, |
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ForceArray => [ $self->{'tag'}, 'config', 'format' ], |
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ForceContent => 1 |
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); |
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} |
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=head2 create_lookup |
=head2 create_lookup |
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Create lookup from record using lookup definition. |
Create lookup from record using lookup definition. |
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$self->create_lookup($rec, @lookups); |
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Called internally by C<open_*> methods. |
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=cut |
=cut |
259 |
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sub create_lookup { |
sub create_lookup { |
281 |
} |
} |
282 |
} |
} |
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=head2 get_data |
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Returns value from record. |
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288 |
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my $text = $self->get_data(\$rec,$f,$sf,$i,\$found); |
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Arguments are: |
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record reference C<$rec>, |
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field C<$f>, |
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optional subfiled C<$sf>, |
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index for repeatable values C<$i>. |
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Optinal variable C<$found> will be incremeted if there |
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is field. |
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Returns value or empty string. |
300 |
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=cut |
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303 |
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sub get_data { |
304 |
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my $self = shift; |
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306 |
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my ($rec,$f,$sf,$i,$found) = @_; |
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308 |
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if ($$rec->{$f}) { |
309 |
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return '' if (! $$rec->{$f}->[$i]); |
310 |
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if ($sf && $$rec->{$f}->[$i]->{$sf}) { |
311 |
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$$found++ if (defined($$found)); |
312 |
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return $$rec->{$f}->[$i]->{$sf}; |
313 |
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} elsif ($$rec->{$f}->[$i]) { |
314 |
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$$found++ if (defined($$found)); |
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# it still might have subfield, just |
316 |
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# not specified, so we'll dump all |
317 |
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if ($$rec->{$f}->[$i] =~ /HASH/o) { |
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my $out; |
319 |
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foreach my $k (keys %{$$rec->{$f}->[$i]}) { |
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$out .= $$rec->{$f}->[$i]->{$k}." "; |
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} |
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return $out; |
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} else { |
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return $$rec->{$f}->[$i]; |
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} |
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} |
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} else { |
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return ''; |
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} |
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} |
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=head2 fill_in |
=head2 fill_in |
333 |
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334 |
Workhourse of all: takes record from in-memory structure of database and |
Workhourse of all: takes record from in-memory structure of database and |
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strings with placeholders and returns string or array of with substituted |
strings with placeholders and returns string or array of with substituted |
336 |
values from record. |
values from record. |
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$webpac->fill_in($rec,'v250^a'); |
my $text = $webpac->fill_in($rec,'v250^a'); |
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Optional argument is ordinal number for repeatable fields. By default, |
Optional argument is ordinal number for repeatable fields. By default, |
341 |
it's assume to be first repeatable field (fields are perl array, so first |
it's assume to be first repeatable field (fields are perl array, so first |
342 |
element is 0). |
element is 0). |
343 |
Following example will read second value from repeatable field. |
Following example will read second value from repeatable field. |
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$webpac->fill_in($rec,'Title: v250^a',1); |
my $text = $webpac->fill_in($rec,'Title: v250^a',1); |
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This function B<does not> perform parsing of format to inteligenty skip |
This function B<does not> perform parsing of format to inteligenty skip |
348 |
delimiters before fields which aren't used. |
delimiters before fields which aren't used. |
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=cut |
=cut |
351 |
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352 |
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# internal function to eval code |
353 |
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sub _eval { |
354 |
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my $self = shift; |
355 |
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356 |
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my $code = shift || return; |
357 |
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no strict 'subs'; |
358 |
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my $ret = eval $code; |
359 |
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if ($@) { |
360 |
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print STDERR "problem with eval code [$code]: $@\n"; |
361 |
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} |
362 |
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return $ret; |
363 |
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} |
364 |
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sub fill_in { |
sub fill_in { |
366 |
my $self = shift; |
my $self = shift; |
367 |
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375 |
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376 |
my $found = 0; |
my $found = 0; |
377 |
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# get field with subfield |
my $eval_code; |
379 |
sub get_sf { |
# remove eval{...} from beginning |
380 |
my ($found,$rec,$f,$sf,$i) = @_; |
$eval_code = $1 if ($format =~ s/^eval{([^}]+)}//s); |
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if ($$rec->{$f} && $$rec->{$f}->[$i]->{$sf}) { |
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$$found++; |
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return $$rec->{$f}->[$i]->{$sf}; |
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} else { |
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return ''; |
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} |
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} |
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# get field (without subfield) |
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sub get_nosf { |
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my ($found,$rec,$f,$i) = @_; |
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if ($$rec->{$f} && $$rec->{$f}->[$i]) { |
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$$found++; |
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return $$rec->{$f}->[$i]; |
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} else { |
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return ''; |
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} |
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} |
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381 |
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382 |
# do actual replacement of placeholders |
# do actual replacement of placeholders |
383 |
$format =~ s/v(\d+)\^(\w)/get_sf(\$found,\$rec,$1,$2,$i)/ges; |
$format =~ s/v(\d+)(?:\^(\w))*/$self->get_data(\$rec,$1,$2,$i,\$found)/ges; |
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$format =~ s/v(\d+)/get_nosf(\$found,\$rec,$1,$i)/ges; |
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384 |
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385 |
if ($found) { |
if ($found) { |
386 |
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if ($eval_code) { |
387 |
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my $eval = $self->fill_in($rec,$eval_code,$i); |
388 |
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return if (! $self->_eval($eval)); |
389 |
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} |
390 |
# do we have lookups? |
# do we have lookups? |
391 |
if ($format =~ /\[[^\[\]]+\]/o) { |
if ($format =~ /\[[^\[\]]+\]/o) { |
392 |
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print "## probable lookup: $format\n"; |
393 |
return $self->lookup($format); |
return $self->lookup($format); |
394 |
} else { |
} else { |
395 |
return $format; |
return $format; |
403 |
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404 |
Perform lookups on format supplied to it. |
Perform lookups on format supplied to it. |
405 |
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406 |
my $txt = $self->lookup('[v900]'); |
my $text = $self->lookup('[v900]'); |
407 |
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408 |
Lookups can be nested (like C<[d:[a:[v900]]]>). |
Lookups can be nested (like C<[d:[a:[v900]]]>). |
409 |
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416 |
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417 |
if ($tmp =~ /\[[^\[\]]+\]/o) { |
if ($tmp =~ /\[[^\[\]]+\]/o) { |
418 |
my @in = ( $tmp ); |
my @in = ( $tmp ); |
419 |
#print "##lookup $tmp\n"; |
print "## lookup $tmp\n"; |
420 |
my @out; |
my @out; |
421 |
while (my $f = shift @in) { |
while (my $f = shift @in) { |
422 |
if ($f =~ /\[([^\[\]]+)\]/) { |
if ($f =~ /\[([^\[\]]+)\]/) { |
423 |
my $k = $1; |
my $k = $1; |
424 |
if ($self->{'lookup'}->{$k}) { |
if ($self->{'lookup'}->{$k}) { |
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#print "## lookup key = $k\n"; |
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425 |
foreach my $nv (@{$self->{'lookup'}->{$k}}) { |
foreach my $nv (@{$self->{'lookup'}->{$k}}) { |
426 |
my $tmp2 = $f; |
my $tmp2 = $f; |
427 |
$tmp2 =~ s/\[$k\]/$nv/g; |
$tmp2 =~ s/\[$k\]/$nv/g; |
428 |
push @in, $tmp2; |
push @in, $tmp2; |
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#print "## lookup in => $tmp2\n"; |
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429 |
} |
} |
430 |
} else { |
} else { |
431 |
undef $f; |
undef $f; |
432 |
} |
} |
433 |
} elsif ($f) { |
} elsif ($f) { |
434 |
push @out, $f; |
push @out, $f; |
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#print "## lookup out => $f\n"; |
|
435 |
} |
} |
436 |
} |
} |
437 |
return @out; |
return @out; |
440 |
} |
} |
441 |
} |
} |
442 |
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443 |
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=head2 parse |
444 |
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445 |
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Perform smart parsing of string, skipping delimiters for fields which aren't |
446 |
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defined. It can also eval code in format starting with C<eval{...}> and |
447 |
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return output or nothing depending on eval code. |
448 |
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449 |
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my $text = $webpac->parse($rec,'eval{"v901^a" eq "Deskriptor"}descriptor: v250^a', $i); |
450 |
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451 |
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=cut |
452 |
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453 |
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sub parse { |
454 |
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my $self = shift; |
455 |
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456 |
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my ($rec, $format_utf8, $i) = @_; |
457 |
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458 |
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return if (! $format_utf8); |
459 |
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460 |
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confess("need HASH as first argument!") if ($rec !~ /HASH/o); |
461 |
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confess("need utf2cp Text::Iconv object!") if (! $self->{'utf2cp'}); |
462 |
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463 |
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$i = 0 if (! $i); |
464 |
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465 |
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my $format = $self->{'utf2cp'}->convert($format_utf8) || confess("can't convert '$format_utf8' from UTF-8 to ",$self->{'code_page'}); |
466 |
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467 |
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my @out; |
468 |
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469 |
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my $eval_code; |
470 |
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# remove eval{...} from beginning |
471 |
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$eval_code = $1 if ($format =~ s/^eval{([^}]+)}//s); |
472 |
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473 |
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my $prefix; |
474 |
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my $all_found=0; |
475 |
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476 |
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while ($format =~ s/^(.*?)v(\d+)(?:\^(\w))*//s) { |
477 |
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478 |
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my $del = $1 || ''; |
479 |
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$prefix ||= $del if ($all_found == 0); |
480 |
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481 |
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my $found = 0; |
482 |
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my $tmp = $self->get_data(\$rec,$2,$3,$i,\$found); |
483 |
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484 |
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if ($found) { |
485 |
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push @out, $del; |
486 |
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push @out, $tmp; |
487 |
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$all_found += $found; |
488 |
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} |
489 |
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} |
490 |
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491 |
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return if (! $all_found); |
492 |
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493 |
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my $out = join('',@out) . $format; |
494 |
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495 |
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# add prefix if not there |
496 |
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$out = $prefix . $out if ($out !~ m/^\Q$prefix\E/); |
497 |
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498 |
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if ($eval_code) { |
499 |
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my $eval = $self->fill_in($rec,$eval_code,$i); |
500 |
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return if (! $self->_eval($eval)); |
501 |
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} |
502 |
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503 |
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return $out; |
504 |
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} |
505 |
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506 |
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=head2 parse_to_arr |
507 |
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508 |
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Similar to C<parse>, but returns array of all repeatable fields |
509 |
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510 |
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my @arr = $webpac->parse_to_arr($rec,'v250^a'); |
511 |
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512 |
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=cut |
513 |
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514 |
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sub parse_to_arr { |
515 |
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my $self = shift; |
516 |
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517 |
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my ($rec, $format_utf8) = @_; |
518 |
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519 |
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confess("need HASH as first argument!") if ($rec !~ /HASH/o); |
520 |
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return if (! $format_utf8); |
521 |
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522 |
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my $i = 0; |
523 |
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my @arr; |
524 |
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525 |
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while (my $v = $self->parse($rec,$format_utf8,$i++)) { |
526 |
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push @arr, $v; |
527 |
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} |
528 |
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529 |
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return @arr; |
530 |
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} |
531 |
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532 |
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=head2 data_structure |
533 |
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534 |
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Create in-memory data structure which represents layout from C<import_xml>. |
535 |
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It is used later to produce output. |
536 |
|
|
537 |
|
my @ds = $webpac->data_structure($rec); |
538 |
|
|
539 |
|
=cut |
540 |
|
|
541 |
|
# private method _sort_by_order |
542 |
|
# sort subrouting using order="" attribute |
543 |
|
sub _sort_by_order { |
544 |
|
my $self = shift; |
545 |
|
|
546 |
|
my $va = $self->{'import_xml'}->{'indexer'}->{$a}->{'order'} || |
547 |
|
$self->{'import_xml'}->{'indexer'}->{$a}; |
548 |
|
my $vb = $self->{'import_xml'}->{'indexer'}->{$b}->{'order'} || |
549 |
|
$self->{'import_xml'}->{'indexer'}->{$b}; |
550 |
|
|
551 |
|
return $va <=> $vb; |
552 |
|
} |
553 |
|
|
554 |
|
sub data_structure { |
555 |
|
my $self = shift; |
556 |
|
|
557 |
|
my $rec = shift; |
558 |
|
confess("need HASH as first argument!") if ($rec !~ /HASH/o); |
559 |
|
|
560 |
|
my @sorted_tags; |
561 |
|
if ($self->{tags_by_order}) { |
562 |
|
@sorted_tags = @{$self->{tags_by_order}}; |
563 |
|
} else { |
564 |
|
@sorted_tags = sort { $self->_sort_by_order } keys %{$self->{'import_xml'}->{'indexer'}}; |
565 |
|
$self->{tags_by_order} = \@sorted_tags; |
566 |
|
} |
567 |
|
|
568 |
|
my @ds; |
569 |
|
|
570 |
|
foreach my $field (@sorted_tags) { |
571 |
|
|
572 |
|
my $row; |
573 |
|
|
574 |
|
#print "field $field [",$self->{'tag'},"] = ",Dumper($self->{'import_xml'}->{'indexer'}->{$field}->{$self->{'tag'}}); |
575 |
|
|
576 |
|
foreach my $tag (@{$self->{'import_xml'}->{'indexer'}->{$field}->{$self->{'tag'}}}) { |
577 |
|
my @v = $self->parse_to_arr($rec,$tag->{'content'}); |
578 |
|
|
579 |
|
next if (! @v); |
580 |
|
|
581 |
|
# does tag have type? |
582 |
|
if ($tag->{'type'}) { |
583 |
|
push @{$row->{$tag->{'type'}}}, @v; |
584 |
|
} else { |
585 |
|
push @{$row->{'display'}}, @v; |
586 |
|
push @{$row->{'swish'}}, @v; |
587 |
|
} |
588 |
|
} |
589 |
|
|
590 |
|
if ($row) { |
591 |
|
$row->{'tag'} = $field; |
592 |
|
push @ds, $row; |
593 |
|
} |
594 |
|
|
595 |
|
} |
596 |
|
|
597 |
|
return @ds; |
598 |
|
|
599 |
|
} |
600 |
|
|
601 |
|
=head2 output |
602 |
|
|
603 |
|
Create output from in-memory data structure using Template Toolkit template. |
604 |
|
|
605 |
|
my $text = $webpac->output( template => 'text.tt', data => @ds ); |
606 |
|
|
607 |
|
=cut |
608 |
|
|
609 |
|
sub output { |
610 |
|
my $self = shift; |
611 |
|
|
612 |
|
my $args = {@_}; |
613 |
|
|
614 |
|
confess("need template name") if (! $args->{'template'}); |
615 |
|
confess("need data array") if (! $args->{'data'}); |
616 |
|
|
617 |
|
my $out; |
618 |
|
|
619 |
|
$self->{'tt'}->process( |
620 |
|
$args->{'template'}, |
621 |
|
$args, |
622 |
|
\$out |
623 |
|
) || confess $self->{'tt'}->error(); |
624 |
|
|
625 |
|
return $out; |
626 |
|
} |
627 |
|
|
628 |
1; |
1; |