Moves extraction code for plugins to resource manager (removes duplicated code)

Change-Id: I425945ec03dcddcdfe49b66956e5b664597daaba
Reviewed-on: http://gerrit.dmdirc.com/441
Tested-by: Gregory Holmes <greboid@dmdirc.com>
Reviewed-by: Shane Mc Cormack <shane@dmdirc.com>

src/com/dmdirc/addons/freedesktop_notifications/FreeDesktopNotificationsPlugin.java

 import com.dmdirc.Main;
 import java.io.File;
 import java.io.IOException;
-import java.util.Map;
-import java.util.Map.Entry;
 import java.util.ArrayList;
 import com.dmdirc.commandparser.CommandManager;
 import com.dmdirc.installer.StreamReader;
                 }
             
                 // Now extract the files needed
-                extractFiles(res, newDir, ".py");
-                extractFiles(res, newDir, ".png");
+                try {
+                    res.extractResoucesEndingWith(newDir, ".py");
+                    res.extractResoucesEndingWith(newDir, ".png");
+                } catch (IOException ex) {
+                    Logger.userError(ErrorLevel.MEDIUM, "Unable to extract files for Free desktop notifications: " + ex.getMessage(), ex);
+                }
             } catch (IOException ioe) {
                 Logger.userError(ErrorLevel.LOW, "Unable to open ResourceManager for freedesktop_notifications: "+ioe.getMessage(), ioe);
             }
         }
     }
-    
-    /**
-     * Use the given resource manager to extract files ending with the given suffix
-     *
-     * @param res ResourceManager
-     * @param newDir Directory to extract to.
-     * @param suffix Suffix to extract
-     */
-    private static void extractFiles(final ResourceManager res, final File newDir, final String suffix) {
-        final Map<String, byte[]> resources = res.getResourcesEndingWithAsBytes(suffix);
-        for (Entry<String, byte[]> resource : resources.entrySet()) {
-            try {
-                final String key = resource.getKey();
-                final String resourceName = key.substring(key.lastIndexOf('/'), key.length());
-
-                final File newFile = new File(newDir, resourceName);
-
-                if (!newFile.isDirectory()) {
-                    if (newFile.exists()) { newFile.delete(); }
-                    ResourceManager.getResourceManager().resourceToFile(resource.getValue(), newFile);
-                }
-            } catch (IOException ex) {
-                Logger.userError(ErrorLevel.LOW, "Failed to extract "+suffix+"s for freedesktop_notifications: "+ex.getMessage(), ex);
-            }
-        }
-    }
 
     /**
      * Called when this plugin is Unloaded.

src/com/dmdirc/addons/mediasource_windows/WindowsMediaSourcePlugin.java

 
 import java.util.ArrayList;
 import java.util.List;
-import java.util.Map;
-import java.util.Map.Entry;
 import java.io.File;
 import java.io.IOException;
 
         return new MediaInfoOutput(-1, "Error executing GetMediaInfo.exe");
     }
 
-    /**
-     * Use the given resource manager to extract files ending with the given suffix
-     *
-     * @param res ResourceManager
-     * @param newDir Directory to extract to.
-     * @param suffix Suffix to extract
-     */
-    private void extractFiles(final ResourceManager res, final File newDir, final String suffix) {
-        final Map<String, byte[]> resources = res.getResourcesEndingWithAsBytes(suffix);
-        for (Entry<String, byte[]> resource : resources.entrySet()) {
-            try {
-                final String key = resource.getKey();
-                final String resourceName = key.substring(key.lastIndexOf('/'), key.length());
-
-                final File newFile = new File(newDir, resourceName);
-
-                if (!newFile.isDirectory()) {
-                    if (newFile.exists()) {
-                        newFile.delete();
-                    }
-                    ResourceManager.getResourceManager().resourceToFile(resource.getValue(), newFile);
-                }
-            } catch (IOException ex) {
-                Logger.userError(ErrorLevel.LOW, "Failed to extract " + suffix + "s for windowsmediasource: " + ex.getMessage(), ex);
-            }
-        }
-    }
-
     /** {@inheritDoc} */
     @Override
     public void onLoad() {
             }
 
             // Now extract the .dlls and .exe
-            extractFiles(res, newDir, ".dll");
-            extractFiles(res, newDir, ".exe");
+            try {
+                res.extractResoucesEndingWith(newDir, ".dll");
+                res.extractResoucesEndingWith(newDir, ".exe");
+            } catch (IOException ex) {
+                Logger.userError(ErrorLevel.MEDIUM, "Unable to extract files for windows media source: " + ex.getMessage(), ex);
+            }
         } catch (IOException ioe) {
             Logger.userError(ErrorLevel.LOW, "Unable to open ResourceManager for windowsmediasource: " + ioe.getMessage(), ioe);
         }