private static void Cache <TReturnType>(AspectF aspect, ICache cacheResolver, string key, Action work, Func <TReturnType, TReturnType> foundInCache) { object cachedData = cacheResolver.Get(key); if (cachedData == null) { GetListFromSource <TReturnType>(aspect, cacheResolver, key); } else { // Give caller a chance to shape the cached item before it is returned TReturnType cachedType = foundInCache((TReturnType)cachedData); if (cachedType == null) { GetListFromSource <TReturnType>(aspect, cacheResolver, key); } else { aspect.WorkDelegate = new Func <TReturnType>(() => cachedType); } } work(); }
public static AspectF Delay(this AspectF aspect, int milliseconds) { return(aspect.Combine(work => { System.Threading.Thread.Sleep(milliseconds); work(); })); }
public static AspectF RunAsync(this AspectF aspect, Action completeCallback) { return(aspect.Combine(work => work.BeginInvoke(asyncresult => { work.EndInvoke(asyncresult); completeCallback(); }, null))); }
public static AspectF CacheRetry <TReturnType>(this AspectF aspect, ICache cacheResolver, ILogger logger, string key) { return(aspect.Combine(work => { try { Cache <TReturnType>(aspect, cacheResolver, key, work, cached => cached); } catch (Exception x) { logger.LogException(x); System.Threading.Thread.Sleep(1000); //Retry try { Cache <TReturnType>(aspect, cacheResolver, key, work, cached => cached); } catch (Exception ex) { logger.LogException(ex); throw; } } })); }
public static TReturnType Use <TReturnType>(this AspectF aspect, TReturnType item, Action <TReturnType> action) { return(aspect.Return(() => { action(item); return item; })); }
public static AspectF Log(this AspectF aspect, ILogger logger, string logMessage, params object[] arg) { return(aspect.Combine(work => { logger.Log(string.Format(logMessage, arg)); work(); })); }
public static AspectF Log(this AspectF aspect, ILogger logger, string[] categories, string logMessage, params object[] arg) { return(aspect.Combine(work => { logger.Log(categories, logMessage); work(); })); }
public static AspectF While(this AspectF aspect, Func <bool> test) { return(aspect.Combine(work => { while (test()) { work(); } })); }
public static AspectF Transaction(this AspectF aspect) { return(aspect.Combine(work => { using (var scope = new TransactionScope(TransactionScopeOption.Required)) { work(); scope.Complete(); } })); }
public static AspectF Until(this AspectF aspect, Func <bool> test) { return(aspect.Combine(work => { while (!test()) { } work(); })); }
public static AspectF TrapLog(this AspectF aspect, ILogger logger) { return(aspect.Combine(work => { try { work(); } catch (Exception x) { logger.LogException(x); } })); }
public static AspectF Log(this AspectF aspect, ILogger logger, string beforeMessage, string afterMessage) { return(aspect.Combine(work => { logger.Log(beforeMessage); work(); logger.Log(afterMessage); })); }
public static AspectF CacheList <TItemType, TListType>(this AspectF aspect, ICache cacheResolver, string listCacheKey, Func <TItemType, string> getItemKey) where TListType : IList <TItemType>, new() { return(aspect.Combine(work => { var workDelegate = aspect.WorkDelegate as Func <TListType>; // Replace the actual work delegate with a new delegate so that // when the actual work delegate returns a collection, each item // in the collection is stored in cache individually. Func <TListType> newWorkDelegate = () => { if (workDelegate != null) { TListType collection = workDelegate(); foreach (TItemType item in collection) { string key = getItemKey(item); cacheResolver.Set(key, item); } return collection; } return default(TListType); }; aspect.WorkDelegate = newWorkDelegate; // Get the collection from cache or real source. If collection is returned // from cache, resolve each item in the collection from cache Cache <TListType>(aspect, cacheResolver, listCacheKey, work, cached => { // Get each item from cache. If any of the item is not in cache // then discard the whole collection from cache and reload the // collection from source. var itemList = new TListType(); foreach (object cachedItem in cached.Select(item => cacheResolver.Get(getItemKey(item)))) { if (null != cachedItem) { itemList.Add((TItemType)cachedItem); } else { // One of the item is missing from cache. So, discard the // cached list. return default(TListType); } } return itemList; }); })); }
public static AspectF Expected <TException>(this AspectF aspect) where TException : Exception { return(aspect.Combine(work => { try { work(); } catch (TException x) { Debug.WriteLine(x.ToString()); } })); }
public static AspectF WhenTrue(this AspectF aspect, params Func <bool>[] conditions) { return(aspect.Combine(work => { if (conditions.Any(condition => !condition())) { return; } work(); })); }
private static void GetListFromSource <TReturnType>(AspectF aspect, ICache cacheResolver, string key) { var workDelegate = aspect.WorkDelegate as Func <TReturnType>; if (workDelegate != null) { TReturnType realObject = workDelegate(); cacheResolver.Add(key, realObject); workDelegate = () => realObject; } aspect.WorkDelegate = workDelegate; }
public static AspectF MustBeNonNull(this AspectF aspect, params object[] args) { return(aspect.Combine(work => { for (var i = 0; i < args.Length; i++) { var arg = args[i]; if (arg == null) { throw new ArgumentException( string.Format("Parameter at index {0} is null", i)); } } work(); })); }
public static AspectF MustBeNonDefault <T>(this AspectF aspect, params T[] args) where T : IComparable { return(aspect.Combine(work => { for (var i = 0; i < args.Length; i++) { T arg = args[i]; if (arg == null || arg.Equals(default(T))) { throw new ArgumentException( string.Format("Parameter at index {0} is null", i)); } } work(); })); }
public static AspectF HowLong(this AspectF aspect, ILogger logger, string startMessage, string endMessage) { return(aspect.Combine(work => { DateTime start = DateTime.Now; logger.Log(startMessage); work(); DateTime end = DateTime.Now.ToUniversalTime(); TimeSpan duration = end - start; logger.Log(string.Format(endMessage, duration.TotalMilliseconds, duration.TotalSeconds, duration.TotalMinutes, duration.TotalHours, duration.TotalDays)); })); }
public static AspectF HowLong(this AspectF aspect, ILogger logger, string startMessage, string endMessage) { return(aspect.Combine(work => { var watch = Stopwatch.StartNew(); logger.Log(startMessage); work(); watch.Stop(); var duration = watch.Elapsed; logger.Log(string.Format(endMessage, duration.TotalMilliseconds, duration.TotalSeconds, duration.TotalMinutes, duration.TotalHours, duration.TotalDays)); })); }
public static AspectF Retry(this AspectF aspects, int retryDuration, int retryCount, Action <Exception> errorHandler) { return(Retry(aspects, retryDuration, retryCount, errorHandler, Let.Logger())); }
public static AspectF Retry(this AspectF aspects, int retryDuration, int retryCount, Action <Exception> errorHandler, ILogger logger) { return(aspects.Combine(work => Retry(retryDuration, retryCount, errorHandler, x => DoNothing(), work, logger))); }
public static AspectF Retry(this AspectF aspects, int retryDuration) { return(Retry(aspects, retryDuration, Let.Logger())); }
public static AspectF Retry(this AspectF aspects, int retryDuration, int retryCount, Action <Exception> errorHandler, Action <IEnumerable <Exception> > retryFailed, ILogger logger) { return(aspects.Combine(work => Retry(retryDuration, retryCount, errorHandler, retryFailed, work, logger))); }
public static AspectF Retry(this AspectF aspects, Action <IEnumerable <Exception> > failHandler) { return(Retry(aspects, failHandler, Let.Logger())); }
public static AspectF CacheList <TItemType, TListType>(this AspectF aspect, string listCacheKey, Func <TItemType, string> getItemKey) where TListType : IList <TItemType>, new() { return(CacheList <TItemType, TListType>(aspect, Let.Cache(), listCacheKey, getItemKey)); }
public static AspectF Retry(this AspectF aspects, int retryDuration, ILogger logger) { return(aspects.Combine(work => Retry(retryDuration, 1, error => DoNothing(error), x => DoNothing(), work, logger))); }
public static AspectF CacheRetry <TReturnType>(this AspectF aspect, string key) { return(CacheRetry <TReturnType>(aspect, Let.Cache(), Let.Logger(), key)); }
public static AspectF Retry(this AspectF aspects, int retryDuration, int retryCount, Action <Exception> errorHandler, Action <IEnumerable <Exception> > retryFailed) { return(Retry(aspects, retryDuration, retryCount, errorHandler, retryFailed, Let.Logger())); }
public static AspectF Cache <TReturnType>(this AspectF aspect, ICache cacheResolver, string key) { return(aspect.Combine(work => Cache <TReturnType>(aspect, cacheResolver, key, work, cached => cached))); }