[rygel] core,server: Move module loading to GObject-style

[Jens Georg <jensgeorg src gnome org>]

commit 3e7d20bf1f556a81ad58985a3c2c03410ee82908
Author: Jens Georg <jensg openismus com>
Date:   Thu Dec 6 22:54:50 2012 +0100

    core,server: Move module loading to GObject-style

 src/librygel-core/rygel-plugin-loader.vala         |   23 +++++++++++++----
 .../rygel-recursive-module-loader.vala             |    8 ++++-
 src/librygel-server/rygel-engine-loader.vala       |   25 +++++++++++++++----
 3 files changed, 42 insertions(+), 14 deletions(-)
---
diff --git a/src/librygel-core/rygel-plugin-loader.vala b/src/librygel-core/rygel-plugin-loader.vala
index d9bd596..36544fa 100644
--- a/src/librygel-core/rygel-plugin-loader.vala
+++ b/src/librygel-core/rygel-plugin-loader.vala
@@ -52,14 +52,15 @@ public class Rygel.PluginLoader : RecursiveModuleLoader {
     public signal void plugin_available (Plugin plugin);
 
     public PluginLoader () {
-        var path = BuildConfig.PLUGIN_DIR;
-        try {
-            var config = MetaConfig.get_default ();
-            path = config.get_plugin_path ();
-        } catch (Error error) { }
+        Object (base_path: get_config_path ());
+    }
 
-        base (path);
+    public override void constructed () {
+        base.constructed ();
 
+        if (this.base_path == null) {
+            this.base_path = get_config_path ();
+        }
         this.plugin_hash = new HashMap<string,Plugin> ();
         this.loaded_modules = new HashSet<string> ();
     }
@@ -137,4 +138,14 @@ public class Rygel.PluginLoader : RecursiveModuleLoader {
 
         return true;
     }
+
+    private static string get_config_path () {
+        var path = BuildConfig.PLUGIN_DIR;
+        try {
+            var config = MetaConfig.get_default ();
+            path = config.get_plugin_path ();
+        } catch (Error error) { }
+
+        return path;
+    }
 }
diff --git a/src/librygel-core/rygel-recursive-module-loader.vala b/src/librygel-core/rygel-recursive-module-loader.vala
index f2ec0e2..7a12ae8 100644
--- a/src/librygel-core/rygel-recursive-module-loader.vala
+++ b/src/librygel-core/rygel-recursive-module-loader.vala
@@ -36,9 +36,10 @@ public abstract class Rygel.RecursiveModuleLoader : Object {
                             FileAttribute.STANDARD_CONTENT_TYPE;
     private delegate void FolderHandler (File folder);
 
-    private string base_path;
     private bool done;
 
+    public string base_path { construct set; get; }
+
     /**
      * Create a recursive module loader for a given path.
      *
@@ -48,7 +49,10 @@ public abstract class Rygel.RecursiveModuleLoader : Object {
      * @param path base path of the loader.
      */
     public RecursiveModuleLoader (string path) {
-        this.base_path = path;
+        Object (base_path : path);
+    }
+
+    public override void constructed () {
         this.done = false;
     }
 
diff --git a/src/librygel-server/rygel-engine-loader.vala b/src/librygel-server/rygel-engine-loader.vala
index 50f34bc..784882a 100644
--- a/src/librygel-server/rygel-engine-loader.vala
+++ b/src/librygel-server/rygel-engine-loader.vala
@@ -29,15 +29,18 @@ internal class Rygel.EngineLoader : RecursiveModuleLoader {
     private string engine_name;
 
     public EngineLoader () {
-        var path = BuildConfig.ENGINE_DIR;
-        var config = MetaConfig.get_default ();
-        try {
-            path = config.get_engine_path ();
-        } catch (Error error) { }
+        Object (base_path : get_config ());
+    }
 
-        base (path);
+    public override void constructed () {
+        base.constructed ();
+
+        if (this.base_path == null) {
+            this.base_path = get_config ();
+        }
 
         try {
+            var config = MetaConfig.get_default ();
             this.engine_name = config.get_media_engine ();
             debug ("Looking for specific engine named '%s",
                    this.engine_name);
@@ -94,4 +97,14 @@ internal class Rygel.EngineLoader : RecursiveModuleLoader {
 
         return false;
     }
+
+    private static string get_config () {
+        var path = BuildConfig.ENGINE_DIR;
+        var config = MetaConfig.get_default ();
+        try {
+            path = config.get_engine_path ();
+        } catch (Error error) { }
+
+        return path;
+    }
 }