#===================================
sub log_request {
#===================================
    my $self   = shift;
    my $log    = $self->_log_fh or return;
    my $server = shift;
    my $params = shift;

    my $data = $params->{data};
    if ( defined $data ) {
        $data =~ s/'/\\u0027/g;
        $data = " -d '\n${data}'";
    }
    else {
        $data = '';
    }

    printf $log (
        "# [%s] Protocol: %s, Server: %s\n",
        scalar localtime(),
        $self->protocol, ${server}
    );
    my $uri = $self->http_uri( '127.0.0.1:9200', @{$params}{ 'cmd', 'qs' } );

    my $method = $params->{method};
    print $log "curl -X$method '$uri' ${data}\n\n";
}

#===================================
sub log_response {
#===================================
    my $self    = shift;
    my $log     = $self->_log_fh or return;
    my $content = shift;
    my $out     = ref $content ? $self->JSON->encode($content) : $content;
    my @lines   = split /\n/, $out;
    printf $log ( "# [%s] Response:\n", scalar localtime() );
    while (@lines) {
        my $line = shift @lines;
        if ( length $line > 65 ) {
            my ($spaces) = ( $line =~ /^(?:> )?(\s*)/ );
            $spaces = substr( $spaces, 0, 20 ) if length $spaces > 20;
            unshift @lines, '> ' . $spaces . substr( $line, 65 );
            $line = substr $line, 0, 65;
        }
        print $log "# $line\n";
    }
    print $log "\n";
}