How to show Private product in woocommerce?

Hello Friends,
I want to show private product to customer after login & my code is :-

$query_args = array( 'posts_per_page' => 5, 'post_status' => 'private', 'post_type' => 'product');

  $r = new WP_Query($query_args);

  if ($r->have_posts()) {
    ?>
    <ul class="product_list_widget">
      <?php while ($r->have_posts()) : $r->the_post(); global $product; ?>

<li><a>" title="<?php echo esc_attr(get_the_title() ? get_the_title() : get_the_ID()); ?>">
    	<?php if (has_post_thumbnail()) the_post_thumbnail('shop_thumbnail'); else echo '<img src="'. woocommerce_placeholder_img_src() .'" alt="Placeholder" width="'.$woocommerce->get_image_size('shop_thumbnail_image_width').'" height="'.$woocommerce->get_image_size('shop_thumbnail_image_height').'" />'; ?>
    	<?php if ( get_the_title() ) the_title(); else the_ID(); ?>
        </a> <?php echo $product->get_price_html(); ?></li>
      <?php endwhile; ?>

    <?php
    // Reset the global $the_post as this query will have stomped on it
    wp_reset_query();

  }

	           	?>

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But it doesn’t show any products.
Plz help me out with this?

http://wordpress.org/extend/plugins/woocommerce/