Implemented CatalogImageMissingException in LocalFileImageService

src/ApplicationCore/Exceptions/CatalogImageMissingException.cs

@@ -9,5 +9,10 @@ namespace ApplicationCore.Exceptions
             : base(message, innerException: innerException)
         {
         }
+        public CatalogImageMissingException(Exception innerException)
+            : base("No catalog image found for the provided id.", 
+                  innerException: innerException)
+        {
+        }
     }
 }

src/Infrastructure/FileSystem/LocalFileImageService.cs

@@ -1,4 +1,5 @@
-using ApplicationCore.Interfaces;
+using ApplicationCore.Exceptions;
+using ApplicationCore.Interfaces;
 using Microsoft.AspNetCore.Hosting;
 using System.IO;
 
@@ -13,10 +14,17 @@ namespace Infrastructure.FileSystem
             _env = env;
         }
         public byte[] GetImageBytesById(int id)
+        {
+            try
             {
                 var contentRoot = _env.ContentRootPath + "//Pics";
                 var path = Path.Combine(contentRoot, id + ".png");
                 return File.ReadAllBytes(path);
             }
+            catch (FileNotFoundException ex)
+            {
+                throw new CatalogImageMissingException(ex);
+            }
+        }
     }
 }