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|
#!/usr/bin/perl -w
use strict;
use warnings;
use Test::More tests => 1;
use lib './t/lib';
use TestHelpers;
BEGIN {
$XML::SAX::ParserPackage = "XML::LibXML::SAX";
}
use XML::SAX::ParserFactory;
my @got_warnings;
local $SIG{__WARN__} = sub {
my ($warning) = @_;
if ($warning =~ /\AUse of uninitialized value/)
{
push @got_warnings, $warning;
}
};
my $metadataHandler = innerSAX->new();
my $oaiHandler = outerSAX->new(metadataHandler => $metadataHandler,
oaiNS => "http://www.openarchives.org/OAI/2.0/");
my $parser = XML::SAX::ParserFactory->parser(Handler => $oaiHandler);
$parser->parse_string(<<'END_OF_XML');
<?xml version="1.0" encoding="UTF-8"?>
<OAI-PMH xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd" xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><responseDate>2013-12-16T20:19:20Z</responseDate><request metadataPrefix="RDFxml" verb="GetRecord" identifier="oai:dnb.de/authorities/1045601462">http://services.d-nb.de/oai/repository</request><GetRecord xsi:schemaLocation="http://www.w3.org/1999/02/22-rdf-syntax-ns http://www.w3.org/2000/07/rdf.xsd"><record><header><identifier>oai:dnb.de/authorities/1045601462</identifier><datestamp>2013-12-16T18:47:23Z</datestamp><setSpec>authorities</setSpec></header><metadata><rdf:RDF xmlns:gnd="http://d-nb.info/standards/elementset/gnd#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rda="http://rdvocab.info/" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:isbd="http://iflastandards.info/ns/isbd/elements/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:marcRole="http://id.loc.gov/vocabulary/relators/" xmlns:lib="http://purl.org/library/" xmlns:umbel="http://umbel.org/umbel#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:skos="http://www.w3.org/2004/02/skos/core#">
<rdf:Description rdf:about="http://d-nb.info/gnd/1045601462">
<rdf:type rdf:resource="http://d-nb.info/standards/elementset/gnd#DifferentiatedPerson"/>
<gnd:gndIdentifier>1045601462</gnd:gndIdentifier>
<gnd:preferredNameForThePerson>Kencena, Rain</gnd:preferredNameForThePerson>
<gnd:preferredNameEntityForThePerson rdf:parseType="Resource">
<gnd:forename>Rain</gnd:forename>
<gnd:surname>Kencena</gnd:surname>
</gnd:preferredNameEntityForThePerson>
<gnd:professionOrOccupation rdf:resource="http://d-nb.info/gnd/4281949-0"/>
<gnd:geographicAreaCode rdf:resource="http://d-nb.info/standards/vocab/gnd/geographic-area-code#XB-TR"/>
<gnd:dateOfBirthAndDeath>ca. 20. / 21. Jh.</gnd:dateOfBirthAndDeath>
<gnd:gender rdf:resource="http://d-nb.info/standards/vocab/gnd/Gender#notKnown"/>
</rdf:Description>
</rdf:RDF></metadata></record></GetRecord></OAI-PMH>
END_OF_XML
eq_or_diff(
\@got_warnings,
[],
"No warnings were generated.",
);
package outerSAX;
use parent qw(XML::SAX::Base);
sub new {
my ($class, %opts) = @_;
my $self = bless \%opts, ref($class) || $class;
$self->set_handler( undef );
return $self;
}
sub start_element {
my ($self, $element) = @_;
return $self->SUPER::start_element($element) unless $element->{NamespaceURI} eq $self->{oaiNS};
if ( $element->{LocalName} eq 'metadata' ) {
$self->{ OLD_Handler } = $self->get_handler();
$self->set_handler( $self->{metadataHandler} );
}
else {
return $self->SUPER::start_element($element)};
}
sub end_element {
my ($self, $element) = @_;
return $self->SUPER::end_element($element) unless $element->{NamespaceURI} eq $self->{oaiNS};
if ( $element->{LocalName} eq 'metadata' ) {
$self->set_handler( $self->{OLD_Handler} );
}
else {
$self->SUPER::end_element($element);
}
}
package innerSAX;
use parent qw(XML::SAX::Base);
use XML::LibXML::SAX::Builder;
sub new {
my ($class, %opts) = @_;
my $self = bless \%opts, ref($class) || $class;
$self->{'tagStack'} = [];
return $self;
}
sub start_element {
my ($self, $element) = @_;
unless ( $self->{'tagStack'}[0] ) {
my $builder = XML::LibXML::SAX::Builder->new()
or die "cannot instantiate SAX builder";
$self->set_handler($builder);
$self->SUPER::start_document(); # i.e. $builder->start_document();
# DEBUG ME: warnings occur here
$self->SUPER::start_element($element);
}
else {
$self->SUPER::start_element($element)};
push(@{$self->{'tagStack'}}, $element->{Name});
}
sub end_element {
my ($self, $element) = @_;
$self->SUPER::end_element($element);
pop (@{$self->{'tagStack'}});
unless ( $self->{'tagStack'}[0] ) {
my $hdl = $self->get_handler();
$self->set_handler(undef);
# Convert fragment to document, do something with it
# (in real life: XSLT)
my $fragment = $hdl->done();
my $child = $fragment->firstChild();
while ($child && $child->nodeName eq "#text")
{
$child = $child->nextSibling;
}
my $tempdoc = XML::LibXML::Document->createDocument()
or die "cannot create new Document";
$tempdoc->addChild($child)
or die "cannot addChild";
# Removing because it was converted into a test script.
# print $tempdoc->toString;
}
}
1;
|
