[rygel] media-export: Use specific functions to check whether container is empty or not.

[Krzesimir Nowak <krnowak src gnome org>]

commit 1030716bd032e22a730c406df82a3634a67270f5
Author: Krzesimir Nowak <krnowak openismus com>
Date:   Wed Jan 30 12:07:26 2013 +0100

    media-export: Use specific functions to check whether container is empty or not.

 .../rygel-media-export-harvesting-task.vala        |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/src/plugins/media-export/rygel-media-export-harvesting-task.vala b/src/plugins/media-export/rygel-media-export-harvesting-task.vala
index fe37c27..982788b 100644
--- a/src/plugins/media-export/rygel-media-export-harvesting-task.vala
+++ b/src/plugins/media-export/rygel-media-export-harvesting-task.vala
@@ -275,12 +275,12 @@ public class Rygel.MediaExport.HarvestingTask : Rygel.StateMachine,
             return false;
         }
 
-        if (this.files.size > 0) {
+        if (!this.files.is_empty) {
             debug ("Scheduling file %s for meta-data extractionâ",
                    this.files.peek ().file.get_uri ());
             this.extractor.extract (this.files.peek ().file,
                                     this.files.peek ().content_type);
-        } else if (this.containers.get_length () > 0) {
+        } else if (!this.containers.is_empty ()) {
             this.enumerate_directory.begin ();
         } else {
             // nothing to do
@@ -372,8 +372,8 @@ public class Rygel.MediaExport.HarvestingTask : Rygel.StateMachine,
      * Reschedule the iteration and extraction
      */
     private void do_update () {
-        if (this.files.size == 0 &&
-            this.containers.get_length () != 0) {
+        if (this.files.is_empty &&
+            !this.containers.is_empty ()) {
             var container = this.containers.peek_head ();
             try {
                 var cache = MediaCache.get_default ();