Update Store.cs

ZeroLevel/Services/PartitionStorage/Store.cs

@@ -39,12 +39,24 @@ namespace ZeroLevel.Services.PartitionStorage
         public void RemovePartition(TMeta info)
         {
             var partition = CreateAccessor(info);
+            if (partition != null)
+            {
+                string path;
+                using (partition)
+                {
+                    path = partition.GetCatalogPath();
                     partition.DropData();
-            FSUtils.RemoveFolder(partition.GetCatalogPath());
+                }
+                FSUtils.RemoveFolder(path);
+            }
         }
 
         public IStorePartitionAccessor<TKey, TInput, TValue> CreateAccessor(TMeta info)
         {
+            if (false == Directory.Exists(_options.GetCatalogPath(info)))
+            {
+                return null;
+            }
             return new StorePartitionAccessor<TKey, TInput, TValue, TMeta>(_options, info, _serializer, _fileAccessorCachee);
         }
 
@@ -79,12 +91,16 @@ namespace ZeroLevel.Services.PartitionStorage
                 };
                 Parallel.ForEach(partitionsSearchInfo, options, (pair, _) =>
                 {
-                    using (var accessor = CreateAccessor(pair.Key))
+                    var accessor = CreateAccessor(pair.Key);
+                    if (accessor != null)
+                    {
+                        using (accessor)
                         {
                             results[pair.Key] = accessor
                                 .Find(pair.Value)
                                 .ToArray();
                         }
+                    }
                 });
             }
             result.Results = results;
@@ -99,16 +115,29 @@ namespace ZeroLevel.Services.PartitionStorage
         public void Bypass(TMeta meta, Action<TKey, TValue> handler)
         {
             var accessor = CreateAccessor(meta);
+            if (accessor != null)
+            {
+                using (accessor)
+                {
                     foreach (var kv in accessor.Iterate())
                     {
                         handler.Invoke(kv.Key, kv.Value);
                     }
                 }
+            }
+        }
 
         public bool Exists(TMeta meta, TKey key)
         {
             var accessor = CreateAccessor(meta);
+            if (accessor != null)
+            {
+                using (accessor)
+                {
                     return accessor.Find(key).Status == SearchResult.Success;
                 }
             }
+            return false;
+        }
+    }
 }