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package App::perlrdf::Command::RDQL;
use 5.010;
use strict;
use warnings;
use utf8;
BEGIN {
$App::perlrdf::Command::RDQL::AUTHORITY = 'cpan:TOBYINK';
$App::perlrdf::Command::RDQL::VERSION = '0.004';
}
use base 'App::perlrdf::Command::Query';
use namespace::clean;
use constant abstract => q (query stores, files or remote endpoints with RDQL);
use constant command_names => qw( rdql );
use constant description => <<'DESCRIPTION';
Use RDQL to query:
* an RDF::Trine::Store;
* a remote SPARQL Protocol (1.0/1.1) endpoint; or
* one or more input files;
But not a combination of the above.
DESCRIPTION
sub opt_spec
{
map {
$_->[0] =~ s/sparql/rdql/ if @$_;
$_;
} shift->SUPER::opt_spec
}
sub validate_args
{
my ($self, $opt, $arg) = @_;
$self->usage_error("Must not provide both 'rdql_file' and 'execute' options.")
if exists $opt->{rdql_file} && exists $opt->{execute};
$self->SUPER::validate_args($opt, $arg);
}
sub _sparql
{
require RDF::Query;
my ($self, $opt, $arg) = @_;
my $rdql = $self->SUPER::_sparql($opt, $arg);
my $query = RDF::Query::->new($rdql, { lang => 'rdql' })
or die RDF::Query->error;
return $query->as_sparql;
}
1;
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