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Update ImageFileCache.cs

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ClemensFischer 2024-02-05 14:50:30 +01:00
parent 39671f66ae
commit 08adde21b8
1 changed files with 51 additions and 45 deletions
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96
MapControl/Shared/ImageFileCache.cs
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@ -135,74 +135,68 @@ namespace MapControl.Caching
public void Set(string key, byte[] buffer, DistributedCacheEntryOptions options) public void Set(string key, byte[] buffer, DistributedCacheEntryOptions options)
{ {
memoryCache.Set(key, buffer, options);
var path = GetPath(key); var path = GetPath(key);
if (path != null && buffer != null) if (path != null && buffer?.Length > 0)
{ {
memoryCache.Set(key, buffer, options); // buffer may be empty try
if (buffer.Length > 0)
{ {
try Directory.CreateDirectory(Path.GetDirectoryName(path));
{
Directory.CreateDirectory(Path.GetDirectoryName(path));
using (var stream = File.Create(path)) using (var stream = File.Create(path))
{
Write(stream, buffer);
var expiration = GetExpiration(options);
if (expiration.HasValue)
{ {
Write(stream, buffer); var expirationValueBytes = BitConverter.GetBytes(expiration.Value.Ticks);
var expiration = GetExpiration(options); Write(stream, expirationTagBytes);
Write(stream, expirationValueBytes);
if (expiration.HasValue)
{
var expirationValueBytes = BitConverter.GetBytes(expiration.Value.Ticks);
Write(stream, expirationTagBytes);
Write(stream, expirationValueBytes);
}
} }
}
SetAccessControl(path); SetAccessControl(path);
} }
catch (Exception ex) catch (Exception ex)
{ {
Debug.WriteLine($"ImageFileCache: Failed writing {path}: {ex.Message}"); Debug.WriteLine($"ImageFileCache: Failed writing {path}: {ex.Message}");
}
} }
} }
} }
public async Task SetAsync(string key, byte[] buffer, DistributedCacheEntryOptions options, CancellationToken token = default) public async Task SetAsync(string key, byte[] buffer, DistributedCacheEntryOptions options, CancellationToken token = default)
{ {
await memoryCache.SetAsync(key, buffer, options, token).ConfigureAwait(false);
var path = GetPath(key); var path = GetPath(key);
if (path != null && buffer != null) if (path != null && buffer?.Length > 0 && !token.IsCancellationRequested)
{ {
try try
{ {
await memoryCache.SetAsync(key, buffer, options, token).ConfigureAwait(false); // buffer may be empty Directory.CreateDirectory(Path.GetDirectoryName(path));
if (buffer.Length > 0 && !token.IsCancellationRequested) using (var stream = File.Create(path))
{ {
Directory.CreateDirectory(Path.GetDirectoryName(path)); await WriteAsync(stream, buffer).ConfigureAwait(false);
using (var stream = File.Create(path)) var expiration = GetExpiration(options);
if (expiration.HasValue)
{ {
await WriteAsync(stream, buffer).ConfigureAwait(false); var expirationValueBytes = BitConverter.GetBytes(expiration.Value.Ticks);
var expiration = GetExpiration(options); await WriteAsync(stream, expirationTagBytes).ConfigureAwait(false);
await WriteAsync(stream, expirationValueBytes).ConfigureAwait(false);
if (expiration.HasValue)
{
var expirationValueBytes = BitConverter.GetBytes(expiration.Value.Ticks);
await WriteAsync(stream, expirationTagBytes).ConfigureAwait(false);
await WriteAsync(stream, expirationValueBytes).ConfigureAwait(false);
}
} }
SetAccessControl(path);
} }
SetAccessControl(path);
} }
catch (Exception ex) catch (Exception ex)
{ {
@ -238,13 +232,25 @@ namespace MapControl.Caching
{ {
Debug.WriteLine($"ImageFileCache: Failed deleting {path}: {ex.Message}"); Debug.WriteLine($"ImageFileCache: Failed deleting {path}: {ex.Message}");
} }
} }
public Task RemoveAsync(string key, CancellationToken token = default) public async Task RemoveAsync(string key, CancellationToken token = default)
{ {
Remove(key); await memoryCache.RemoveAsync(key, token);
return Task.CompletedTask;
var path = GetPath(key);
try
{
if (path != null && File.Exists(path) && !token.IsCancellationRequested)
{
File.Delete(path);
}
}
catch (Exception ex)
{
Debug.WriteLine($"ImageFileCache: Failed deleting {path}: {ex.Message}");
}
} }
private string GetPath(string key) private string GetPath(string key)