# Licensed to Elasticsearch B.V. under one or more contributor
# license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright
# ownership. Elasticsearch B.V. licenses this file to you 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.

package Search::Elasticsearch::Cxn::Factory;

use Moo;
use Search::Elasticsearch::Util qw(parse_params load_plugin);
use namespace::clean;

has 'cxn_class'          => ( is => 'ro', required => 1 );
has '_factory'           => ( is => 'ro', required => 1 );
has 'default_host'       => ( is => 'ro', default  => 'http://localhost:9200' );
has 'max_content_length' => ( is => 'rw', default  => 104_857_600 );

#===================================
sub BUILDARGS {
#===================================
    my ( $class, $params ) = parse_params(@_);
    my %args = (%$params);
    delete $args{nodes};

    my $cxn_class
        = load_plugin( 'Search::Elasticsearch::Cxn', delete $args{cxn} );
    $params->{_factory} = sub {
        my ( $self, $node ) = @_;
        $cxn_class->new(
            %args,
            node               => $node,
            max_content_length => $self->max_content_length
        );
    };
    $params->{cxn_args}  = \%args;
    $params->{cxn_class} = $cxn_class;
    return $params;
}

#===================================
sub new_cxn { shift->_factory->(@_) }
#===================================

1;

__END__

# ABSTRACT: Used by CxnPools to create new Cxn instances.

=head1 DESCRIPTION

This class is used by the L<Search::Elasticsearch::Role::CxnPool> implementations
to create new L<Search::Elasticsearch::Role::Cxn>-based instances. It holds on
to all the configuration options passed to L<Elasticsearch/new()> so
that new Cxns can use them.

It contains no user serviceable parts.