Version 7.0: WinUI

SQLiteCache/WinUI/SQLiteCache.WinUI.cs

@@ -0,0 +1,50 @@
+// XAML Map Control - https://github.com/ClemensFischer/XAML-Map-Control
+// © 2021 Clemens Fischer
+// Licensed under the Microsoft Public License (Ms-PL)
+
+using System;
+using System.Diagnostics;
+using System.Threading.Tasks;
+
+namespace MapControl.Caching
+{
+    public partial class SQLiteCache : IImageCache
+    {
+        public async Task<Tuple<byte[], DateTime>> GetAsync(string key)
+        {
+            try
+            {
+                using (var command = GetItemCommand(key))
+                {
+                    var reader = await command.ExecuteReaderAsync();
+
+                    if (await reader.ReadAsync())
+                    {
+                        return Tuple.Create((byte[])reader["buffer"], new DateTime((long)reader["expiration"]));
+                    }
+                }
+            }
+            catch (Exception ex)
+            {
+                Debug.WriteLine($"SQLiteCache.GetAsync({key}): {ex.Message}");
+            }
+
+            return null;
+        }
+
+        public async Task SetAsync(string key, byte[] buffer, DateTime expiration)
+        {
+            try
+            {
+                using (var command = SetItemCommand(key, buffer, expiration))
+                {
+                    await command.ExecuteNonQueryAsync();
+                }
+            }
+            catch (Exception ex)
+            {
+                Debug.WriteLine($"SQLiteCache.SetAsync({key}): {ex.Message}");
+            }
+        }
+    }
+}