From a52a2083dda9a22527846fc287ef22b90dfc25a3 Mon Sep 17 00:00:00 2001
From: Ogoun <ogoun@users.noreply.github.com>
Date: Mon, 14 Nov 2022 22:41:56 +0300
Subject: [PATCH] PartitionStorage FilePartitionsPresets

---
 .../PartitionStorage/FilePartitionsPresets.cs | 38 +++++++++++++++++++
 ZeroLevel/ZeroLevel.csproj                    |  8 ++--
 2 files changed, 42 insertions(+), 4 deletions(-)
 create mode 100644 ZeroLevel/Services/PartitionStorage/FilePartitionsPresets.cs

diff --git a/ZeroLevel/Services/PartitionStorage/FilePartitionsPresets.cs b/ZeroLevel/Services/PartitionStorage/FilePartitionsPresets.cs
new file mode 100644
index 0000000..55f425d
--- /dev/null
+++ b/ZeroLevel/Services/PartitionStorage/FilePartitionsPresets.cs
@@ -0,0 +1,38 @@
+using System;
+using ZeroLevel.Services.HashFunctions;
+
+namespace ZeroLevel.Services.PartitionStorage
+{
+    public static class FilePartitionsPresets
+    {
+        public static StoreFilePartition<string, TMeta> StringDivideIntoParts<TMeta>(string name, int parts)
+        {
+            Func<string, TMeta, string> extractor = (key, _) => ((int)Math.Abs(StringHash.DotNetFullHash(key) % parts)).ToString();
+            return new StoreFilePartition<string, TMeta>(name, extractor);
+        }
+
+        public static StoreFilePartition<ulong, TMeta> ULongDivideIntoParts<TMeta>(string name, int parts)
+        {
+            Func<ulong, TMeta, string> extractor = (key, _) => (key % (ulong)parts).ToString();
+            return new StoreFilePartition<ulong, TMeta>(name, extractor);
+        }
+
+        public static StoreFilePartition<long, TMeta> LongDivideIntoParts<TMeta>(string name, int parts)
+        {
+            Func<long, TMeta, string> extractor = (key, _) => (key % (long)parts).ToString();
+            return new StoreFilePartition<long, TMeta>(name, extractor);
+        }
+
+        public static StoreFilePartition<uint, TMeta> UIntDivideIntoParts<TMeta>(string name, int parts)
+        {
+            Func<uint, TMeta, string> extractor = (key, _) => (key % (uint)parts).ToString();
+            return new StoreFilePartition<uint, TMeta>(name, extractor);
+        }
+
+        public static StoreFilePartition<int, TMeta> IntDivideIntoParts<TMeta>(string name, int parts)
+        {
+            Func<int, TMeta, string> extractor = (key, _) => (key % parts).ToString();
+            return new StoreFilePartition<int, TMeta>(name, extractor);
+        }
+    }
+}
\ No newline at end of file
diff --git a/ZeroLevel/ZeroLevel.csproj b/ZeroLevel/ZeroLevel.csproj
index 815787d..12c9293 100644
--- a/ZeroLevel/ZeroLevel.csproj
+++ b/ZeroLevel/ZeroLevel.csproj
@@ -6,16 +6,16 @@
 </Description>
     <Authors>ogoun</Authors>
     <Company>ogoun</Company>
-    <AssemblyVersion>3.3.7.3</AssemblyVersion>
-    <PackageReleaseNotes>PartitionStorage append indexes</PackageReleaseNotes>
+    <AssemblyVersion>3.3.7.4</AssemblyVersion>
+    <PackageReleaseNotes>PartitionStorage FilePartitionsPresets</PackageReleaseNotes>
     <PackageProjectUrl>https://github.com/ogoun/Zero/wiki</PackageProjectUrl>
     <Copyright>Copyright Ogoun 2022</Copyright>
     <PackageLicenseUrl></PackageLicenseUrl>
     <PackageIconUrl></PackageIconUrl>
     <RepositoryUrl>https://github.com/ogoun/Zero</RepositoryUrl>
     <RepositoryType>git</RepositoryType>
-    <Version>3.3.7.3</Version>
-    <FileVersion>3.3.7.3</FileVersion>
+    <Version>3.3.7.4</Version>
+    <FileVersion>3.3.7.4</FileVersion>
     <Platforms>AnyCPU;x64;x86</Platforms>
     <PackageIcon>zero.png</PackageIcon>
     <DebugType>full</DebugType>