public FileSystemOutputCacheBackgroundTask(
IAppDataFolder appDataFolder,
ShellSettings shellSettings,
ICacheManager cacheManager,
IClock clock,
ISignals signals)
{
_appDataFolder = appDataFolder;
_shellSettings = shellSettings;
_cacheManager = cacheManager;
_clock = clock;
_signals = signals;
_metadata = FileSystemOutputCacheStorageProvider.GetMetadataPath(appDataFolder, _shellSettings.Name);
_content = FileSystemOutputCacheStorageProvider.GetContentPath(appDataFolder, _shellSettings.Name);
}
public void Sweep()
{
foreach (var filename in _appDataFolder.ListFiles(_root).ToArray())
{
var validUntilUtc = _cacheManager.Get(filename, context => {
_signals.When(filename);
using (var stream = _appDataFolder.OpenFile(filename)) {
var cacheItem = FileSystemOutputCacheStorageProvider.Deserialize(stream);
return(cacheItem.ValidUntilUtc);
}
});
if (_clock.UtcNow > validUntilUtc)
{
_appDataFolder.DeleteFile(filename);
_signals.Trigger(filename);
}
}
}
public void Sweep()
{
foreach (var filename in _appDataFolder.ListFiles(_metadata).ToArray())
{
var hash = Path.GetFileName(filename);
var validUntilUtc = _cacheManager.Get(hash, context => {
_signals.When(hash);
using (var stream = _appDataFolder.OpenFile(filename)) {
var cacheItem = FileSystemOutputCacheStorageProvider.DeserializeMetadata(stream);
return(cacheItem.ValidUntilUtc);
}
});
if (_clock.UtcNow > validUntilUtc)
{
_appDataFolder.DeleteFile(_appDataFolder.Combine(_metadata, hash));
_appDataFolder.DeleteFile(_appDataFolder.Combine(_content, hash));
_signals.Trigger(filename);
}
}
}