added log to PermissionStore

modules/permission-management/src/Volo.Abp.PermissionManagement.Domain/Volo/Abp/PermissionManagement/PermissionStore.cs

@@ -1,4 +1,6 @@
 using System.Threading.Tasks;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
 using Volo.Abp.Authorization.Permissions;
 using Volo.Abp.Caching;
 using Volo.Abp.DependencyInjection;
@@ -11,12 +13,15 @@ namespace Volo.Abp.PermissionManagement
 
         protected IDistributedCache<PermissionGrantCacheItem> Cache { get; }
 
+        protected ILogger<PermissionStore> Logger { get; set; }
+
         public PermissionStore(
             IPermissionGrantRepository permissionGrantRepository,
             IDistributedCache<PermissionGrantCacheItem> cache)
         {
             PermissionGrantRepository = permissionGrantRepository;
             Cache = cache;
+            Logger = NullLogger<PermissionStore>.Instance;
         }
 
         public async Task<bool> IsGrantedAsync(string name, string providerName, string providerKey)
@@ -26,24 +31,33 @@ namespace Volo.Abp.PermissionManagement
 
         protected virtual async Task<PermissionGrantCacheItem> GetCacheItemAsync(string name, string providerName, string providerKey)
         {
+            Logger.LogDebug($"PermissionStore.GetCacheItemAsync: name={name}, providerName={providerName}, providerKey={providerKey}");
+
             var cacheKey = CalculateCacheKey(name, providerName, providerKey);
             var cacheItem = await Cache.GetAsync(cacheKey);
 
             if (cacheItem != null)
             {
+                Logger.LogDebug("Found in the cache.");
                 return cacheItem;
             }
 
+            Logger.LogDebug("Not found in the cache, getting from the repository!");
+
             cacheItem = new PermissionGrantCacheItem(
                 name,
                 await PermissionGrantRepository.FindAsync(name, providerName, providerKey) != null
             );
 
+            Logger.LogDebug("Setting the cache item.");
+
             await Cache.SetAsync(
                 cacheKey,
                 cacheItem
             );
 
+            Logger.LogDebug("Finished setting the cache item.");
+
             return cacheItem;
         }