public IObservable <Unit> InsertAll(IList <Category> categories)
{
return(blob.GetOrCreateObject <IList <Category> >(KEY_CATEGORIES, () => new List <Category>())
.Select(source =>
{
return categories.Union(source);
})
.SelectMany(merged => blob.InsertObject(KEY_CATEGORIES, merged)));
}
public IObservable<Unit> InsertAll(ICollection<Place> places)
{
return blob.GetOrCreateObject<IList<Place>>(KEY_PLACES, () => new List<Place>())
.Select(source =>
{
return places.Union(source);
})
.SelectMany(merged => blob.InsertObject(KEY_PLACES, merged));
}
public Settings()
{
blobCache = BlobCache.LocalMachine;
blobCache.GetOrCreateObject(nameof(IsDebugging), () => false).Subscribe(b => _isDebugging = b);
blobCache.GetOrCreateObject(nameof(IsSoundOn), () => false).Subscribe(b => _isSoundOn = b);
blobCache.GetOrCreateObject(nameof(HasAstroids), () => true).Subscribe(b => _hasAstroids = b);
blobCache.GetOrCreateObject(nameof(MasterVolume), () => 10f).Subscribe(b => _masterVolume = b);
blobCache.GetOrCreateObject(nameof(IsFullScreen), () => false).Subscribe(b => _isFullScreen = b);
}
public override T GetOrCreate <T>(T defaultValue, [CallerMemberName] string key = null)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
_cacheLock.EnterReadLock();
try
{
if (_cache.TryGetValue(key, out object value))
{
return((T)value);
}
}
finally
{
_cacheLock.ExitReadLock();
}
T returnValue = _blobCache.GetOrCreateObject($"{_cacheKey}:{key}", () => defaultValue)
.Do(x => AddToInternalCache(key, x)).Wait();
return(returnValue);
}
public IObservable <Unit> InsertAll(IList <Session> sessions)
{
return(blob.GetOrCreateObject <IList <Session> >(KEY_SESSIONS, () => new List <Session>())
.Select(source =>
{
var checkedSessions = sessions.Where(session => session.IsChecked).ToDictionary(session => session.id);
var merged = sessions.Union(source);
return merged.Select(session =>
{
session.IsChecked = checkedSessions.ContainsKey(session.id);
return session;
});
})
.SelectMany(merged =>
{
return Observable.Merge(
merged.ToObservable()
.Select(session => session.category)
.ToList().Distinct()
.SelectMany(categoryDao.InsertAll),
merged.ToObservable()
.Select(session => session.place)
.ToList().Distinct()
.SelectMany(placeDao.InsertAll),
blob.InsertObject(KEY_SESSIONS, merged)
);
}));
}
static IObservable <T> GetAndFetchLatestFromIndex <T>(this IBlobCache This,
string key,
Func <IObservable <T> > fetchFunc,
Action <T> removedItemsCallback,
Func <DateTimeOffset, bool> fetchPredicate = null,
DateTimeOffset?absoluteExpiration = null,
bool shouldInvalidateOnError = false)
where T : CacheItem
{
var idx = Observable.Defer(() => This
.GetOrCreateObject(key, () => CacheIndex.Create(key)))
.Select(x => x.IndexKey == null ? CacheIndex.Create(key) : x)
.Replay()
.RefCount();
var fetch = idx
.Select(x => Tuple.Create(x, fetchPredicate == null || !x.Keys.Any() || fetchPredicate(x.UpdatedAt)))
.Where(predicateIsTrue => predicateIsTrue.Item2)
.Select(x => x.Item1)
.Select(index => index.Clear())
.SelectMany(index => fetchFunc()
.Catch <T, Exception>(ex =>
{
var shouldInvalidate = shouldInvalidateOnError ?
This.InvalidateObject <CacheIndex>(key) :
Observable.Return(Unit.Default);
return(shouldInvalidate.SelectMany(__ => Observable.Throw <T>(ex)));
})
.SelectMany(x => x.Save <T>(This, key, absoluteExpiration))
.Do(x => index.Add(key, x))
);
var cache = idx
.SelectMany(index => This.GetObjects <T>(index.Keys.ToList()))
.SelectMany(dict => dict.Values);
return(cache.Merge(fetch)
.Finally(async() =>
{
var index = await idx;
await index.Save(This);
var list = index.OldKeys.Except(index.Keys);
if (!list.Any())
{
return;
}
var removed = await This.GetObjects <T>(list);
foreach (var d in removed.Values)
{
removedItemsCallback(d);
}
await This.InvalidateObjects <T>(list);
})
.Replay().RefCount());
}
static IObservable <T> GetAndFetchLatestFromIndex <T>(this IBlobCache This,
string key,
Func <IObservable <T> > fetchFunc,
Action <T> removedItemsCallback,
Func <DateTimeOffset, bool> fetchPredicate = null,
DateTimeOffset?absoluteExpiration = null,
bool shouldInvalidateOnError = false)
where T : CacheItem
{
var fetch = Observable.Defer(() => This.GetOrCreateObject(key, () => CacheIndex.Create(key))
.Select(x => Tuple.Create(x, fetchPredicate == null || !x.Keys.Any() || fetchPredicate(x.UpdatedAt)))
.Where(predicateIsTrue => predicateIsTrue.Item2)
.Select(x => x.Item1)
.SelectMany(index => index.Clear(This, key, absoluteExpiration))
.SelectMany(index =>
{
var fetchObs = fetchFunc().Catch <T, Exception>(ex =>
{
var shouldInvalidate = shouldInvalidateOnError ?
This.InvalidateObject <CacheIndex>(key) :
Observable.Return(Unit.Default);
return(shouldInvalidate.SelectMany(__ => Observable.Throw <T>(ex)));
});
return(fetchObs
.SelectMany(x => x.Save <T>(This, key, absoluteExpiration))
.Do(x => index.AddAndSave(This, key, x, absoluteExpiration))
.Finally(() =>
{
This.GetObjects <T>(index.OldKeys.Except(index.Keys))
.Do(dict => This.InvalidateObjects <T>(dict.Keys))
.SelectMany(dict => dict.Values)
.Do(removedItemsCallback)
.Subscribe();
}));
}));
var cache = Observable.Defer(() => This.GetOrCreateObject(key, () => CacheIndex.Create(key))
.SelectMany(index => This.GetObjects <T>(index.Keys))
.SelectMany(dict => dict.Values));
return(cache.Merge(fetch).Replay().RefCount());
}
private async Task VacuumIfNeeded(IBlobCache x, TimeSpan timeAgo)
{
var lastVacuum = await x.GetOrCreateObject(vacuumKey, () => new DateTime());
if (lastVacuum > DateTime.UtcNow.Subtract(timeAgo))
{
return;
}
await Vacuum(x);
}
public static IObservable<CacheIndex> AddAndSaveToIndex(IBlobCache cache, string indexKey, CacheItem item,
DateTimeOffset? absoluteExpiration = null)
{
return cache.GetOrCreateObject(indexKey, () => Create(indexKey))
.Do(index =>
{
var k = string.Format(CultureInfo.InvariantCulture, "{0}|{1}", index.IndexKey, item.Key);
if (!index.Keys.Contains(k))
index.Keys.Add(k);
index.UpdatedAt = DateTimeOffset.UtcNow;
})
.SelectMany(index => cache.InsertObject(index.IndexKey, index, absoluteExpiration)
.Select(x => index));
}
public static IObservable <CacheIndex> AddAndSaveToIndex(IBlobCache cache, string indexKey, CacheItem item,
DateTimeOffset?absoluteExpiration = null)
{
return(cache.GetOrCreateObject(indexKey, () => Create(indexKey))
.Do(index =>
{
var k = string.Format(CultureInfo.InvariantCulture, "{0}|{1}", index.IndexKey, item.Key);
if (!index.Keys.Contains(k))
{
index.Keys.Add(k);
}
index.UpdatedAt = DateTimeOffset.UtcNow;
})
.SelectMany(index => cache.InsertObject(index.IndexKey, index, absoluteExpiration)
.Select(x => index)));
}
/// <summary>
/// This method adds a new object to the database and updates the
/// corresponding index.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="blobCache">The cache to retrieve the object from.</param>
/// <param name="key">The key to look up the cache value with.</param>
/// <param name="item">The item to add to the database</param>
/// <param name="maxCacheDuration">
/// The maximum age of a cache object before the object is treated as
/// expired and unusable. Cache objects older than this will be treated
/// as a cache miss.
/// <returns></returns>
public static IObservable <T> PutAndUpdateIndex <T>(this IBlobCache blobCache,
string key,
Func <IObservable <T> > fetchFunc,
TimeSpan maxCacheDuration)
where T : CacheItem
{
return(Observable.Defer(() =>
{
var absoluteExpiration = blobCache.Scheduler.Now + maxCacheDuration;
return blobCache.GetOrCreateObject(key, () => CacheIndex.Create(key))
.SelectMany(index => fetchFunc()
.Catch <T, Exception>(Observable.Throw <T>)
.SelectMany(x => x.Save <T>(blobCache, key, absoluteExpiration))
.Do(x => index.AddAndSave(blobCache, key, x, absoluteExpiration))
);
}));
}
public Task <T> GetOrCreate <T>(string key, Func <T> createAction, TimeSpan?expireTimeSpan)
{
var t = Task.Run(async() =>
{
try
{
DateTimeOffset?offset = expireTimeSpan.HasValue ? DateTimeOffset.UtcNow.Add(expireTimeSpan.Value) : (DateTimeOffset?)null;
return(await cache.GetOrCreateObject(key, createAction, offset));
}
catch
{
return(default(T));
}
});
t.ConfigureAwait(false);
return(t);
}
public FeedsViewModel(IBlobCache cache = null)
{
Cache = cache ?? Locator.Current.GetService<IBlobCache>();
Cache.GetOrCreateObject(BlobCacheKeys.Blogs, () => new ReactiveList<BlogViewModel>())
.Subscribe(blogs => { Blogs = blogs; });
RefreshAll = ReactiveCommand.CreateAsyncTask(x =>
{
foreach (var blog in Blogs)
{
blog.Refresh.InvokeCommand(null);
}
return Task.FromResult(Unit.Default);
});
RefreshAll.ThrownExceptions.Subscribe(thrownException => { this.Log().Error(thrownException); });
_isLoading = RefreshAll.IsExecuting.ToProperty(this, x => x.IsLoading);
PersistData =
ReactiveCommand.CreateAsyncTask(async x => { await Cache.InsertObject(BlobCacheKeys.Blogs, Blogs); });
PersistData.ThrownExceptions.Subscribe(thrownException => { this.Log().Error(thrownException); });
// behaviours
// when a blog is added or removed, wait for 5 seconds of inactivity before persisting the data as the user may be doing bulk [add|remove] operations.
this.WhenAnyValue(viewModel => viewModel.Blogs)
.Throttle(TimeSpan.FromSeconds(5), RxApp.MainThreadScheduler)
.InvokeCommand(this, viewModel => viewModel.PersistData);
// When an user adds a new blog to the feed, automatically fetch/cache the contents of the blog.
// When a blog becomes the selected blog, fetch/cache the contents of the blog.
this.WhenAnyObservable(viewModel => viewModel.Blogs.ItemsAdded)
.Merge(this.WhenAnyValue(viewModel => viewModel.SelectedBlog).Where(blogVm => blogVm != null))
.Subscribe(x => x.Refresh.InvokeCommand(null));
// post-condition checks
Condition.Ensures(Cache).IsNotNull();
Condition.Ensures(RefreshAll).IsNotNull();
Condition.Ensures(PersistData).IsNotNull();
}
public FeedsViewModel(IBlobCache cache = null)
{
Cache = cache ?? Locator.Current.GetService <IBlobCache>();
Cache.GetOrCreateObject(BlobCacheKeys.Blogs, () => new ReactiveList <BlogViewModel>())
.Subscribe(blogs => { Blogs = blogs; });
RefreshAll = ReactiveCommand.CreateAsyncTask(x =>
{
foreach (var blog in Blogs)
{
blog.Refresh.InvokeCommand(null);
}
return(Task.FromResult(Unit.Default));
});
RefreshAll.ThrownExceptions.Subscribe(thrownException => { this.Log().Error(thrownException); });
_isLoading = RefreshAll.IsExecuting.ToProperty(this, x => x.IsLoading);
PersistData =
ReactiveCommand.CreateAsyncTask(async x => { await Cache.InsertObject(BlobCacheKeys.Blogs, Blogs); });
PersistData.ThrownExceptions.Subscribe(thrownException => { this.Log().Error(thrownException); });
// behaviours
// when a blog is added or removed, wait for 5 seconds of inactivity before persisting the data as the user may be doing bulk [add|remove] operations.
this.WhenAnyValue(viewModel => viewModel.Blogs)
.Throttle(TimeSpan.FromSeconds(5), RxApp.MainThreadScheduler)
.InvokeCommand(this, viewModel => viewModel.PersistData);
// When an user adds a new blog to the feed, automatically fetch/cache the contents of the blog.
// When a blog becomes the selected blog, fetch/cache the contents of the blog.
this.WhenAnyObservable(viewModel => viewModel.Blogs.ItemsAdded)
.Merge(this.WhenAnyValue(viewModel => viewModel.SelectedBlog).Where(blogVm => blogVm != null))
.Subscribe(x => x.Refresh.InvokeCommand(null));
// post-condition checks
Condition.Ensures(Cache).IsNotNull();
Condition.Ensures(RefreshAll).IsNotNull();
Condition.Ensures(PersistData).IsNotNull();
}
public async Task <T> Get <T>(string key, T defaultValue)
{
return(await _cache.GetOrCreateObject <T>(GetKey(key), () => defaultValue));
}
private async Task VacuumIfNeeded(IBlobCache x, TimeSpan timeAgo) {
var lastVacuum = await x.GetOrCreateObject(vacuumKey, () => new DateTime());
if (lastVacuum > DateTime.UtcNow.Subtract(timeAgo))
return;
await Vacuum(x);
}
public async Task ReadFromStorage(IBlobCache storage)
{
ApiKey = await storage.GetOrCreateObject("ApiKey", () => "");
AuthUser = await storage.GetOrCreateObject("AuthUser", () => "");
AuthPass = await storage.GetOrCreateObject("AuthPass", () => "");
Endpoint = await storage.GetOrCreateObject("Endpoint", () => "https://staging.vpdb.io/api");
PbxFolder = await storage.GetOrCreateObject("PbxFolder", () => "");
SyncStarred = await storage.GetOrCreateObject("SyncStarred", () => true);
MinimizeToTray = await storage.GetOrCreateObject("MinimizeToTray", () => false);
StartWithWindows = await storage.GetOrCreateObject("StartWithWindows", () => false);
ReformatXml = await storage.GetOrCreateObject("ReformatXml", () => false);
XmlFile = await storage.GetOrCreateObject("XmlFile", () => new Dictionary<Platform.PlatformType, string> {{ Platform.PlatformType.VP, "Visual Pinball" }});
DownloadOnStartup = await storage.GetOrCreateObject("DownloadOnStartup", () => false);
PatchTableScripts = await storage.GetOrCreateObject("PatchTableScripts", () => true);
DownloadOrientation = await storage.GetOrCreateObject("DownloadOrientation", () => SettingsManager.Orientation.Portrait);
DownloadOrientationFallback = await storage.GetOrCreateObject("DownloadOrientationFallback", () => SettingsManager.Orientation.Same);
DownloadLighting = await storage.GetOrCreateObject("DownloadLighting", () => SettingsManager.Lighting.Day);
DownloadLightingFallback = await storage.GetOrCreateObject("DownloadLightingFallback", () => SettingsManager.Lighting.Any);
WindowPosition = await storage.GetOrCreateObject("WindowPosition", () => new Position());
IsFirstRun = await storage.GetOrCreateObject("IsFirstRun", () => true);
}
async public Task InitAsync()
{
_cache = BlobCache.UserAccount;
ProfileIds = await _cache.GetOrCreateObject <HashSet <string> >(CACHE_KEY, () => new HashSet <string>());
}
/// <summary>
/// Gets the or create object non-secure
/// </summary>
/// <returns>The or create object.</returns>
/// <param name="key">Key.</param>
/// <param name="defaultValue">Default value.</param>
/// <typeparam name="T">The 1st type parameter.</typeparam>
T GetOrCreateObject <T>(string key, T defaultValue) where T : new()
{
return(_deviceCache.GetOrCreateObject(key, () => defaultValue).GetAwaiter().Wait());
}
public IObservable <T> GetOrCreateObject <T>(string key, Func <T> createFunc) => _localCache.GetOrCreateObject(key, createFunc);
async public Task InitAsync()
{
_cache = BlobCache.UserAccount;
_dict = await _cache.GetOrCreateObject <Dictionary <string, HistoryModel> >(CACHE_KEY, () => new Dictionary <string, HistoryModel>());
}
/// <summary>
/// get values from secure cache
/// </summary>
/// <returns>The or create object secure.</returns>
/// <param name="key">Key.</param>
/// <param name="defaultValue">Default value.</param>
/// <typeparam name="T">The 1st type parameter.</typeparam>
T GetOrCreateObjectWithSecure <T>(string key, T defaultValue) where T : new()
{
return(_secureCache.GetOrCreateObject(key, () => defaultValue).GetAwaiter().Wait());
}
public IObservable <UserSettings> GetUserSettings()
{
_logger.Debug("GetUserSettings");
return(BlobCache.GetOrCreateObject(UserSettingsKey, CreateUserSettings));
}
public async Task ReadFromStorage(IBlobCache storage)
{
ApiKey = await storage.GetOrCreateObject("ApiKey", () => "");
AuthUser = await storage.GetOrCreateObject("AuthUser", () => "");
AuthPass = await storage.GetOrCreateObject("AuthPass", () => "");
Endpoint = await storage.GetOrCreateObject("Endpoint", () => "https://api.vpdb.io");
PinballXFolder = await storage.GetOrCreateObject("PbxFolder", () => "");
SyncStarred = await storage.GetOrCreateObject("SyncStarred", () => true);
MinimizeToTray = await storage.GetOrCreateObject("MinimizeToTray", () => false);
StartWithWindows = await storage.GetOrCreateObject("StartWithWindows", () => false);
ReformatXml = await storage.GetOrCreateObject("ReformatXml", () => false);
XmlFile = await storage.GetOrCreateObject("XmlFile", () => new Dictionary <Platform, string> {
{ Platform.VP, "Visual Pinball" }
});
DownloadOnStartup = await storage.GetOrCreateObject("DownloadOnStartup", () => false);
PatchTableScripts = await storage.GetOrCreateObject("PatchTableScripts", () => true);
DownloadOrientation = await storage.GetOrCreateObject("DownloadOrientation", () => SettingsManager.Orientation.Portrait);
DownloadOrientationFallback = await storage.GetOrCreateObject("DownloadOrientationFallback", () => SettingsManager.Orientation.Same);
DownloadLighting = await storage.GetOrCreateObject("DownloadLighting", () => SettingsManager.Lighting.Day);
DownloadLightingFallback = await storage.GetOrCreateObject("DownloadLightingFallback", () => SettingsManager.Lighting.Any);
WindowPosition = await storage.GetOrCreateObject("WindowPosition", () => new Position());
IsFirstRun = await storage.GetOrCreateObject("IsFirstRun", () => true);
}
//TODO: такой же как и GetOrPutInCached
public static T GetOrPutUserData <T>(string key, Func <T> fetchFunc)
{
return(UserData.GetOrCreateObject(key, fetchFunc, DateTimeOffset.MaxValue).Wait());
}
