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# Copyright 2015 - present MongoDB, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
use strict;
use warnings;
package MongoDB::Op::_Count;
# Encapsulate code path for count commands
use version;
our $VERSION = 'v2.0.2';
use Moo;
use MongoDB::Op::_Command;
use Types::Standard qw(
HashRef
Maybe
);
use namespace::clean;
has filter => (
is => 'ro',
required => 1,
isa => Maybe[HashRef],
);
has options => (
is => 'ro',
required => 1,
isa => HashRef,
);
with $_ for qw(
MongoDB::Role::_PrivateConstructor
MongoDB::Role::_CollectionOp
MongoDB::Role::_ReadOp
);
sub execute {
my ( $self, $link, $topology ) = @_;
if ( defined $self->options->{collation} and !$link->supports_collation ) {
MongoDB::UsageError->throw(
"MongoDB host '" . $link->address . "' doesn't support collation" );
}
my $command = [
count => $self->coll_name,
(defined $self->{filter} ? ( query => $self->{filter} ) : () ),
($link->supports_read_concern ?
@{ $self->read_concern->as_args( $self->session ) } : () ),
%{ $self->options },
];
my $op = MongoDB::Op::_Command->_new(
db_name => $self->db_name,
query => $command,
query_flags => {},
bson_codec => $self->bson_codec,
read_preference => $self->read_preference,
session => $self->session,
monitoring_callback => $self->monitoring_callback,
);
my $res = $op->execute( $link, $topology );
return $res->output;
}
1;
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