Merge pull request #259 from rwood/adding-concurrent-propertyinfo-caching

PropertyInfo Caching on Update

Author: ahmad-moussawi

QueryBuilder.Tests/QueryBuilder.Tests.csproj

@@ -7,6 +7,7 @@
     <RootNamespace>SqlKata.Tests</RootNamespace>
   </PropertyGroup>
   <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.1.0" />
     <PackageReference Include="xunit" Version="2.3.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.3.1" />
   </ItemGroup>

QueryBuilder/Query.Update.cs

@@ -55,4 +55,4 @@ public Query AsUpdate(IEnumerable<KeyValuePair<string, object>> values)
             return this;
         }
     }
-}
+}

QueryBuilder/Query.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
@@ -312,6 +313,8 @@ public Query IncludeMany(string relationName, Query query, string foreignKey = n
         {
             return Include(relationName, query, foreignKey, localKey, isMany: true);
         }
+        
+        private static readonly ConcurrentDictionary<Type, PropertyInfo[]> CacheDictionaryProperties = new ConcurrentDictionary<Type, PropertyInfo[]>();
 
         /// <summary>
         /// Define a variable to be used within the query
@@ -355,7 +358,7 @@ public object FindVariable(string variable)
         private IEnumerable<KeyValuePair<string, object>> BuildKeyValuePairsFromObject(object data, bool considerKeys = false)
         {
             var dictionary = new Dictionary<string, object>();
-            var props = data.GetType().GetRuntimeProperties();
+            var props = CacheDictionaryProperties.GetOrAdd(data.GetType(), type => type.GetRuntimeProperties().ToArray());
 
             foreach (var property in props)
             {

QueryBuilder/QueryBuilder.csproj

@@ -7,8 +7,11 @@
     <Description>A powerful Dynamic Sql Query Builder supporting Sql Server, MySql, PostgreSql, Oracle and Firebird</Description>
     <Authors>Ahmad Moussawi</Authors>
     <Copyright>Copyright (c) 2017 Ahmad Moussawi</Copyright>
-    <TargetFrameworks>netstandard1.0;net45</TargetFrameworks>
+    <TargetFrameworks>net45;netstandard1.1</TargetFrameworks>
     <RootNamespace>SqlKata</RootNamespace>
     <AssemblyName>SqlKata</AssemblyName>
   </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="System.Collections.Concurrent" Version="4.3.0" />
+  </ItemGroup>
 </Project>