Alot of refactoring.

NzbDrone.Core/Providers/Core/ArchiveProvider.cs

@@ -0,0 +1,25 @@
+using System.Linq;
+using Ionic.Zip;
+using NLog;
+
+namespace NzbDrone.Core.Providers.Core
+{
+    public class ArchiveProvider
+    {
+        private static readonly Logger logger = LogManager.GetCurrentClassLogger();
+      
+
+        public virtual void ExtractArchive(string compressedFile, string destination)
+        {
+            logger.Trace("Extracting archive [{0}] to [{1}]", compressedFile, destination);
+
+            using (ZipFile zipFile = ZipFile.Read(compressedFile))
+            {
+                zipFile.ExtractAll(destination);
+            }
+
+            logger.Trace("Extraction complete.");
+        }
+
+    }
+}