Don't throw an exception when the cache provider is down

Author: VahidN

.editorconfig

@@ -9,6 +9,7 @@ dotnet_diagnostic.S127.severity = suggestion
 dotnet_diagnostic.S2857.severity = suggestion
 dotnet_diagnostic.S2094.severity = suggestion
 dotnet_diagnostic.CA2227.severity = suggestion 
+dotnet_diagnostic.CA1031.severity = suggestion
 
 dotnet_diagnostic.IDE0055.severity = none
 dotnet_diagnostic.IDE0160.severity = none

src/EFCoreSecondLevelCacheInterceptor.CacheManager.Core/EFCoreSecondLevelCacheInterceptor.CacheManager.Core.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
         <Description>Entity Framework Core Second Level Caching Library.</Description>
-        <VersionPrefix>5.2.0</VersionPrefix>
+        <VersionPrefix>5.2.1</VersionPrefix>
         <Authors>Vahid Nasiri</Authors>
         <TargetFrameworks>net9.0;net8.0;net7.0;net6.0;net5.0;netstandard2.1;netstandard2.0;net462;netcoreapp3.1;</TargetFrameworks>
         <GenerateDocumentationFile>true</GenerateDocumentationFile>

src/EFCoreSecondLevelCacheInterceptor.EasyCaching.Core/EFCoreSecondLevelCacheInterceptor.EasyCaching.Core.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
         <Description>Entity Framework Core Second Level Caching Library.</Description>
-        <VersionPrefix>5.2.0</VersionPrefix>
+        <VersionPrefix>5.2.1</VersionPrefix>
         <Authors>Vahid Nasiri</Authors>
         <TargetFrameworks>net9.0;net8.0;net7.0;net6.0;net5.0;netstandard2.1;netstandard2.0;net462;netcoreapp3.1;</TargetFrameworks>
         <GenerateDocumentationFile>true</GenerateDocumentationFile>

src/EFCoreSecondLevelCacheInterceptor.FusionCache/EFCoreSecondLevelCacheInterceptor.FusionCache.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
         <Description>Entity Framework Core Second Level Caching Library.</Description>
-        <VersionPrefix>5.2.0</VersionPrefix>
+        <VersionPrefix>5.2.1</VersionPrefix>
         <Authors>Vahid Nasiri</Authors>
         <TargetFrameworks>net9.0;net8.0;</TargetFrameworks>
         <GenerateDocumentationFile>true</GenerateDocumentationFile>

src/EFCoreSecondLevelCacheInterceptor.HybridCache/EFCoreSecondLevelCacheInterceptor.HybridCache.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
         <Description>Entity Framework Core Second Level Caching Library.</Description>
-        <VersionPrefix>5.2.0</VersionPrefix>
+        <VersionPrefix>5.2.1</VersionPrefix>
         <Authors>Vahid Nasiri</Authors>
         <TargetFrameworks>net9.0;net8.0;</TargetFrameworks>
         <GenerateDocumentationFile>true</GenerateDocumentationFile>

src/EFCoreSecondLevelCacheInterceptor.MemoryCache/EFCoreSecondLevelCacheInterceptor.MemoryCache.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
         <Description>Entity Framework Core Second Level Caching Library.</Description>
-        <VersionPrefix>5.2.0</VersionPrefix>
+        <VersionPrefix>5.2.1</VersionPrefix>
         <Authors>Vahid Nasiri</Authors>
         <TargetFrameworks>net9.0;net8.0;net7.0;net6.0;net5.0;netstandard2.1;netstandard2.0;net462;netcoreapp3.1;</TargetFrameworks>
         <GenerateDocumentationFile>true</GenerateDocumentationFile>

src/EFCoreSecondLevelCacheInterceptor.StackExchange.Redis/EFCoreSecondLevelCacheInterceptor.StackExchange.Redis.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
         <Description>Entity Framework Core Second Level Caching Library.</Description>
-        <VersionPrefix>5.2.0</VersionPrefix>
+        <VersionPrefix>5.2.1</VersionPrefix>
         <Authors>Vahid Nasiri</Authors>
         <TargetFrameworks>net9.0;net8.0;net7.0;net6.0;net5.0;netstandard2.1;netstandard2.0;net462;netcoreapp3.1;</TargetFrameworks>
         <GenerateDocumentationFile>true</GenerateDocumentationFile>

src/EFCoreSecondLevelCacheInterceptor/EFCacheServiceCheck.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
 
 namespace EFCoreSecondLevelCacheInterceptor;
@@ -9,8 +10,10 @@ namespace EFCoreSecondLevelCacheInterceptor;
 /// </summary>
 public class EFCacheServiceCheck : IEFCacheServiceCheck
 {
+    private readonly ILogger<EFCacheServiceCheck> _cacheServiceCheckLogger;
     private readonly IEFCacheServiceProvider _cacheServiceProvider;
     private readonly EFCoreSecondLevelCacheSettings _cacheSettings;
+    private readonly IEFDebugLogger _logger;
 
     private bool? _isCacheServerAvailable;
     private DateTime? _lastCheckTime;
@@ -19,14 +22,18 @@ public class EFCacheServiceCheck : IEFCacheServiceCheck
     ///     Is the configured cache provider online?
     /// </summary>
     public EFCacheServiceCheck(IOptions<EFCoreSecondLevelCacheSettings> cacheSettings,
-        IEFCacheServiceProvider cacheServiceProvider)
+        IEFCacheServiceProvider cacheServiceProvider,
+        IEFDebugLogger logger,
+        ILogger<EFCacheServiceCheck> cacheServiceCheckLogger)
     {
         if (cacheSettings == null)
         {
             throw new ArgumentNullException(nameof(cacheSettings));
         }
 
         _cacheServiceProvider = cacheServiceProvider;
+        _logger = logger;
+        _cacheServiceCheckLogger = cacheServiceCheckLogger;
         _cacheSettings = cacheSettings.Value;
     }
 
@@ -37,14 +44,34 @@ public bool IsCacheServiceAvailable()
     {
         if (!_cacheSettings.IsCachingInterceptorEnabled)
         {
+            if (_logger.IsLoggerEnabled)
+            {
+                _cacheServiceCheckLogger.LogDebug(message: "The caching interceptor is disabled.");
+            }
+
             return false;
         }
 
         if (!_cacheSettings.UseDbCallsIfCachingProviderIsDown)
         {
+            if (_logger.IsLoggerEnabled)
+            {
+                _cacheServiceCheckLogger.LogDebug(
+                    message:
+                    "The caching interceptor isn't set to fallback on db if the caching provider ({Type}) is down.",
+                    _cacheServiceProvider.GetType());
+            }
+
             return true;
         }
 
+        if (_logger.IsLoggerEnabled)
+        {
+            _cacheServiceCheckLogger.LogDebug(
+                message: "The caching interceptor is set to fallback on db if the caching provider ({Type}) is down.",
+                _cacheServiceProvider.GetType());
+        }
+
         var now = DateTime.UtcNow;
 
         if (_lastCheckTime.HasValue && _isCacheServerAvailable.HasValue &&
@@ -66,14 +93,20 @@ public bool IsCacheServiceAvailable()
             }, new EFCachePolicy());
 
             _isCacheServerAvailable = true;
+
+            if (_logger.IsLoggerEnabled)
+            {
+                _cacheServiceCheckLogger.LogDebug(message: "The cache service is available.");
+            }
         }
-        catch
+        catch (Exception ex)
         {
             _isCacheServerAvailable = false;
 
-            if (_cacheSettings.UseDbCallsIfCachingProviderIsDown)
+            if (_logger.IsLoggerEnabled)
             {
-                throw;
+                _cacheServiceCheckLogger.LogDebug(ex, message: "The cache service({Type}) isn't available.",
+                    _cacheServiceProvider.GetType());
             }
         }
 

src/EFCoreSecondLevelCacheInterceptor/EFCoreSecondLevelCacheInterceptor.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
         <Description>Entity Framework Core Second Level Caching Library.</Description>
-        <VersionPrefix>5.2.0</VersionPrefix>
+        <VersionPrefix>5.2.1</VersionPrefix>
         <Authors>Vahid Nasiri</Authors>
         <TargetFrameworks>net9.0;net8.0;net7.0;net6.0;net5.0;netstandard2.1;netstandard2.0;net462;netcoreapp3.1;</TargetFrameworks>
         <GenerateDocumentationFile>true</GenerateDocumentationFile>