public long SAdd <T>(string cacheKey, IList <T> cacheValues, TimeSpan?expiration = null)
{
ArgumentCheck.NotNullOrWhiteSpace(cacheKey, nameof(cacheKey));
ArgumentCheck.NotNullAndCountGTZero(cacheValues, nameof(cacheValues));
var list = new List <RedisValue>();
foreach (var item in cacheValues)
{
list.Add(_serializer.Serialize(item));
}
var len = _cache.SetAdd(cacheKey, list.ToArray());
if (expiration.HasValue)
{
_cache.KeyExpire(cacheKey, expiration.Value);
}
return(len);
}
public CommandLine(string[] args)
{
ArgumentCheck.ParameterIsNotNull(args, nameof(args));
if (args.Length == 1 &&
(args[0] == "-?" ||
args[0] == "/?" ||
args[0] == "-h" ||
args[0] == "--help"))
{
PrintUsage();
return;
}
for (var i = args.Length - 1; i >= 0; i--)
{
arguments.Push(args[i]);
}
ParseArgs();
}
/// <summary>
/// Gets all.
/// </summary>
/// <returns>The all.</returns>
/// <param name="cacheKeys">Cache keys.</param>
/// <typeparam name="T">The 1st type parameter.</typeparam>
public IDictionary <string, CacheValue <T> > GetAll <T>(IEnumerable <string> cacheKeys)// where T : class
{
ArgumentCheck.NotNullAndCountGTZero(cacheKeys, nameof(cacheKeys));
var values = _memcachedClient.Get <T>(cacheKeys);
var result = new Dictionary <string, CacheValue <T> >();
foreach (var item in values)
{
if (item.Value != null)
{
result.Add(item.Key, new CacheValue <T>(item.Value, true));
}
else
{
result.Add(item.Key, CacheValue <T> .NoValue);
}
}
return(result);
}
/// <summary>
/// Removes the specified cacheKey async.
/// </summary>
/// <returns>The async.</returns>
/// <param name="cacheKey">Cache key.</param>
public async Task RemoveAsync(string cacheKey)
{
ArgumentCheck.NotNullOrWhiteSpace(cacheKey, nameof(cacheKey));
try
{
// distributed cache at first
await _distributedCache.RemoveAsync(cacheKey);
}
catch (Exception ex)
{
LogMessage($"remove cache key [{cacheKey}] error", ex);
}
await _localCache.RemoveAsync(cacheKey);
// send message to bus
await _busAsyncWrap.ExecuteAsync(async() => await _bus.PublishAsync(_options.TopicName, new EasyCachingMessage {
Id = _cacheId, CacheKeys = new string[] { cacheKey }
}));
}
/// <summary>
/// Removes all async.
/// </summary>
/// <returns>The all async.</returns>
/// <param name="cacheKeys">Cache keys.</param>
public async Task RemoveAllAsync(IEnumerable <string> cacheKeys)
{
ArgumentCheck.NotNullAndCountGTZero(cacheKeys, nameof(cacheKeys));
cacheKeys = cacheKeys.Select(x => BuildCacheKey(Name, x));
if (_options.EnableLogging)
{
_logger?.LogInformation($"RemoveAllAsync : cacheKeys = {string.Join(",", cacheKeys)}");
}
var tasks = new List <Task>();
foreach (var key in cacheKeys.Distinct())
{
var cacheKey = string.IsNullOrWhiteSpace(_name) ? key : key.Substring(Name.Length + 1, key.Length - Name.Length - 1);
tasks.Add(RemoveAsync(cacheKey));
}
await Task.WhenAll(tasks);
}
/// <summary>
/// Sets all async.
/// </summary>
/// <returns>The all async.</returns>
/// <param name="values">Values.</param>
/// <param name="expiration">Expiration.</param>
/// <typeparam name="T">The 1st type parameter.</typeparam>
public async Task SetAllAsync <T>(IDictionary <string, T> values, TimeSpan expiration) where T : class
{
ArgumentCheck.NotNegativeOrZero(expiration, nameof(expiration));
ArgumentCheck.NotNullAndCountGTZero(values, nameof(values));
var tran = _cache.BeginTransaction();
var tasks = new List <Task <int> >();
foreach (var item in values)
{
tasks.Add(_cache.ExecuteAsync(ConstSQL.SETSQL, new
{
cachekey = item.Key,
cachevalue = Newtonsoft.Json.JsonConvert.SerializeObject(item.Value),
expiration = expiration.Ticks / 10000000
}, tran));
}
await Task.WhenAll(tasks);
tran.Commit();
}
public static void RemoveStructureChangedEventHandler(
AutomationElement element, StructureChangedEventHandler eventHandler)
{
ArgumentCheck.NotNull(element, "element");
ArgumentCheck.NotNull(eventHandler, "eventHandler");
if (element == AutomationElement.RootElement)
{
foreach (var source in SourceManager.GetAutomationSources())
{
source.RemoveStructureChangedEventHandler(
null, eventHandler);
}
}
else
{
var source = element.SourceElement.AutomationSource;
source.RemoveStructureChangedEventHandler(
element.SourceElement, eventHandler);
}
}
/// <summary>
/// Adds the EasyCaching response caching.
/// </summary>
/// <param name="services">Services.</param>
/// <param name="action">Configure response caching settings.</param>
/// <param name="name">The provider name that will use to store the response.</param>
public static IServiceCollection AddEasyCachingResponseCaching(
this IServiceCollection services
, Action <ResponseCachingOptions> action
, string name
)
{
ArgumentCheck.NotNull(services, nameof(services));
services.Configure(action);
services.TryAddSingleton <IResponseCachingPolicyProvider, ResponseCachingPolicyProvider>();
services.TryAddSingleton <IResponseCachingKeyProvider, ResponseCachingKeyProvider>();
services.TryAddSingleton <ObjectPoolProvider, DefaultObjectPoolProvider>();
services.AddSingleton <IResponseCache, EasyCachingResponseCache>(x =>
{
var factory = x.GetRequiredService <IEasyCachingProviderFactory>();
return(new EasyCachingResponseCache(name, factory));
});
return(services);
}
/// <summary>
/// Set the specified cacheKey, cacheValue and expiration.
/// </summary>
/// <returns>The set.</returns>
/// <param name="cacheKey">Cache key.</param>
/// <param name="cacheValue">Cache value.</param>
/// <param name="expiration">Expiration.</param>
/// <typeparam name="T">The 1st type parameter.</typeparam>
public override void BaseSet <T>(string cacheKey, T cacheValue, TimeSpan expiration)
{
ArgumentCheck.NotNullOrWhiteSpace(cacheKey, nameof(cacheKey));
ArgumentCheck.NotNull(cacheValue, nameof(cacheValue));
ArgumentCheck.NotNegativeOrZero(expiration, nameof(expiration));
if (MaxRdSecond > 0)
{
var addSec = new Random().Next(1, MaxRdSecond);
expiration.Add(new TimeSpan(0, 0, addSec));
}
var exp = expiration.Ticks / 10000000;
_cache.Upsert(new CacheItem
{
cachekey = cacheKey,
name = _name,
cachevalue = Newtonsoft.Json.JsonConvert.SerializeObject(cacheValue),
expiration = expiration.Ticks / 10000000
});
}
/// <summary>
/// Remove the specified cacheKey.
/// </summary>
/// <param name="cacheKey">Cache key.</param>
public void Remove(string cacheKey)
{
ArgumentCheck.NotNullOrWhiteSpace(cacheKey, nameof(cacheKey));
try
{
// distributed cache at first
_distributedCache.Remove(cacheKey);
}
catch (Exception ex)
{
_logger?.LogError(ex, "remove cache key [{0}] error", cacheKey);
}
_localCache.Remove(cacheKey);
// send message to bus
_bus.Publish(_options.TopicName, new EasyCachingMessage {
Id = _cacheId, CacheKeys = new string[] { cacheKey }
});
}
/// <summary>
/// Existses the specified cacheKey async.
/// </summary>
/// <returns>The async.</returns>
/// <param name="cacheKey">Cache key.</param>
public async Task <bool> ExistsAsync(string cacheKey)
{
ArgumentCheck.NotNullOrWhiteSpace(cacheKey, nameof(cacheKey));
bool flag;
try
{
flag = await _distributedCache.ExistsAsync(cacheKey);
return(flag);
}
catch (Exception ex)
{
_logger?.LogError(ex, "Check cache key [{0}] exists error", cacheKey);
}
flag = await _localCache.ExistsAsync(cacheKey);
return(flag);
}
/// <summary>
/// Gets the specified cacheKey, dataRetriever and expiration async.
/// </summary>
/// <returns>The async.</returns>
/// <param name="cacheKey">Cache key.</param>
/// <param name="dataRetriever">Data retriever.</param>
/// <param name="expiration">Expiration.</param>
/// <typeparam name="T">The 1st type parameter.</typeparam>
public async Task <CacheValue <T> > GetAsync <T>(string cacheKey, Func <Task <T> > dataRetriever, TimeSpan expiration) where T : class
{
ArgumentCheck.NotNullOrWhiteSpace(cacheKey, nameof(cacheKey));
ArgumentCheck.NotNegativeOrZero(expiration, nameof(expiration));
var list = await _cache.QueryAsync <string>(ConstSQL.GETSQL, new
{
cachekey = cacheKey
});
var dbResult = list.FirstOrDefault();
if (!string.IsNullOrWhiteSpace(dbResult))
{
if (_options.EnableLogging)
{
_logger?.LogInformation($"Cache Hit : cachekey = {cacheKey}");
}
return(new CacheValue <T>(Newtonsoft.Json.JsonConvert.DeserializeObject <T>(dbResult), true));
}
var item = await dataRetriever?.Invoke();
if (item != null)
{
await SetAsync(cacheKey, item, expiration);
return(new CacheValue <T>(item, true));
}
else
{
if (_options.EnableLogging)
{
_logger?.LogInformation($"Cache Missed : cachekey = {cacheKey}");
}
return(CacheValue <T> .NoValue);
}
}
/// <summary>
/// Tries the set.
/// </summary>
/// <returns><c>true</c>, if set was tryed, <c>false</c> otherwise.</returns>
/// <param name="cacheKey">Cache key.</param>
/// <param name="cacheValue">Cache value.</param>
/// <param name="expiration">Expiration.</param>
/// <typeparam name="T">The 1st type parameter.</typeparam>
public bool TrySet <T>(string cacheKey, T cacheValue, TimeSpan expiration)
{
ArgumentCheck.NotNullOrWhiteSpace(cacheKey, nameof(cacheKey));
bool distributedError = false;
bool flag = false;
try
{
flag = _distributedCache.TrySet(cacheKey, cacheValue, expiration);
}
catch (Exception ex)
{
distributedError = true;
_logger?.LogError(ex, "tryset cache key [{0}] error", cacheKey);
}
if (flag && !distributedError)
{
// When we TrySet succeed in distributed cache, we should Set this cache to local cache.
// It's mainly to prevent the cache value was changed
_localCache.Set(cacheKey, cacheValue, expiration);
}
// distributed cache occur error, have a try with local cache
if (distributedError)
{
flag = _localCache.TrySet(cacheKey, cacheValue, expiration);
}
if (flag)
{
// Here should send message to bus due to cache was set successfully.
_bus.Publish(_options.TopicName, new EasyCachingMessage {
Id = _cacheId, CacheKeys = new string[] { cacheKey }
});
}
return(flag);
}
/// <summary>
/// Tries the set async.
/// </summary>
/// <returns>The set async.</returns>
/// <param name="cacheKey">Cache key.</param>
/// <param name="cacheValue">Cache value.</param>
/// <param name="expiration">Expiration.</param>
/// <typeparam name="T">The 1st type parameter.</typeparam>
public async Task <bool> TrySetAsync <T>(string cacheKey, T cacheValue, TimeSpan expiration)
{
ArgumentCheck.NotNullOrWhiteSpace(cacheKey, nameof(cacheKey));
bool distributedError = false;
bool flag = false;
try
{
flag = await _distributedCache.TrySetAsync(cacheKey, cacheValue, expiration);
}
catch (Exception ex)
{
distributedError = true;
LogMessage($"tryset cache key [{cacheKey}] error", ex);
}
if (flag && !distributedError)
{
// When we TrySet succeed in distributed cache, we should Set this cache to local cache.
// It's mainly to prevent the cache value was changed
await _localCache.SetAsync(cacheKey, cacheValue, expiration);
}
// distributed cache occur error, have a try with local cache
if (distributedError)
{
flag = await _localCache.TrySetAsync(cacheKey, cacheValue, expiration);
}
if (flag)
{
// Here should send message to bus due to cache was set successfully.
await _busAsyncWrap.ExecuteAsync(async() => await _bus.PublishAsync(_options.TopicName, new EasyCachingMessage {
Id = _cacheId, CacheKeys = new string[] { cacheKey }
}));
}
return(flag);
}
public static void RegisterClientSideProviderAssembly(AssemblyName assemblyName)
{
ArgumentCheck.NotNull(assemblyName, "assemblyName");
Assembly assembly = null;
// TODO, wrap exception messages into Catalog.GetString
try {
assembly = Assembly.Load(assemblyName);
} catch (FileNotFoundException) {
throw new ProxyAssemblyNotLoadedException(
string.Format("'{0}' assembly not found.", assemblyName));
}
string typeName = assemblyName.Name + ".UIAutomationClientSideProviders";
Type type = assembly.GetType(typeName);
if (type == null)
{
throw new ProxyAssemblyNotLoadedException(
string.Format("Cannot find type {0} in assembly {1}",
typeName, assemblyName));
}
FieldInfo field = type.GetField("ClientSideProviderDescriptionTable", BindingFlags.Public | BindingFlags.Static);
if ((field == null) || (field.FieldType != typeof(ClientSideProviderDescription[])))
{
throw new ProxyAssemblyNotLoadedException(
string.Format("Cannot find Register method on type {0} in assembly {1}",
typeName, assemblyName));
}
var description = field.GetValue(null) as ClientSideProviderDescription [];
if (description != null)
{
ClientSettings.RegisterClientSideProviders(description);
}
}
/// <summary>
/// Gets the specified cacheKey, dataRetriever and expiration async.
/// </summary>
/// <returns>The async.</returns>
/// <param name="cacheKey">Cache key.</param>
/// <param name="dataRetriever">Data retriever.</param>
/// <param name="expiration">Expiration.</param>
/// <typeparam name="T">The 1st type parameter.</typeparam>
public async Task <CacheValue <T> > GetAsync <T>(string cacheKey, Func <Task <T> > dataRetriever, TimeSpan expiration) where T : class
{
ArgumentCheck.NotNullOrWhiteSpace(cacheKey, nameof(cacheKey));
ArgumentCheck.NotNegativeOrZero(expiration, nameof(expiration));
var result = await _cache.StringGetAsync(cacheKey);
if (!result.IsNull)
{
CacheStats.OnHit();
if (_options.EnableLogging)
{
_logger?.LogInformation($"Cache Hit : cachekey = {cacheKey}");
}
var value = _serializer.Deserialize <T>(result);
return(new CacheValue <T>(value, true));
}
CacheStats.OnMiss();
if (_options.EnableLogging)
{
_logger?.LogInformation($"Cache Missed : cachekey = {cacheKey}");
}
var item = await dataRetriever?.Invoke();
if (item != null)
{
await SetAsync(cacheKey, item, expiration);
return(new CacheValue <T>(item, true));
}
else
{
return(CacheValue <T> .NoValue);
}
}
// ----------------------------------------------------------------------
public void Register(ILoggerListener loggerListener, string context)
{
if (loggerListener == null)
{
throw new ArgumentNullException("loggerListener");
}
string checkedContext = ArgumentCheck.NonemptyTrimmedString(context, "context");
lock ( listenerListsByContext )
{
List <ILoggerListener> contextListeners;
if (!listenerListsByContext.TryGetValue(checkedContext, out contextListeners))
{
contextListeners = new List <ILoggerListener>(5);
listenerListsByContext.Add(checkedContext, contextListeners);
}
lock ( contextListeners )
{
contextListeners.Add(loggerListener);
}
}
} // Register
public override int Query(FormM form, DFDictionary entity, DataGridVM vm, int start, int limit, ref string message)
{
if (IsEmptyQuery(entity))
{
return(EmptyQuery(vm));
}
ArgumentCheck.CheckMustInput(entity, "TableName");
var tableName = entity["TableName"];
List <VM_ColumnMetadata> list = null;
// 如果是客户端点击查询按钮，或者回传回的数据没有客户端数据
IDBHelper dbHelper;
using (var db = Pub.DB)
{
dbHelper = DBHelper.GetDBHelper(db);
}
list = dbHelper.LoadColumns(tableName);
vm.results = list.Count;
vm.rows = Merge(tableName, list.Skip(start).Take(limit).ToList());
return(DFPub.EXECUTE_SUCCESS);
}
// ----------------------------------------------------------------------
public void Register(ILoggerListener loggerListener, string context)
{
if (loggerListener == null)
{
throw new ArgumentNullException("loggerListener");
}
string checkedContext = ArgumentCheck.NonemptyTrimmedString(context, "context");
lock (listenerListsByContext)
{
ArrayList contextListeners = listenerListsByContext[checkedContext] as ArrayList;
if (contextListeners == null)
{
contextListeners = new ArrayList(5);
listenerListsByContext.Add(checkedContext, contextListeners);
}
lock (contextListeners)
{
contextListeners.Add(loggerListener);
}
}
} // Register
/// <summary>
/// Gets the by prefix.
/// </summary>
/// <returns>The by prefix.</returns>
/// <param name="prefix">Prefix.</param>
/// <typeparam name="T">The 1st type parameter.</typeparam>
public IDictionary <string, CacheValue <T> > GetByPrefix <T>(string prefix) where T : class
{
ArgumentCheck.NotNullOrWhiteSpace(prefix, nameof(prefix));
var map = new Dictionary <string, CacheValue <T> >();
if (_options.EnableLogging)
{
_logger?.LogInformation($"GetByPrefix : prefix = {prefix}");
}
var keys = _cacheKeys.Where(x => x.StartsWith(prefix.Trim(), StringComparison.OrdinalIgnoreCase));
if (keys.Any())
{
foreach (var item in keys)
{
map[item] = this.Get <T>(item);
}
}
return(map);
}
/// <summary>
/// Removes cached item by cachekey's prefix async.
/// </summary>
/// <returns>The by prefix async.</returns>
/// <param name="prefix">Prefix.</param>
public async Task RemoveByPrefixAsync(string prefix)
{
ArgumentCheck.NotNullOrWhiteSpace(prefix, nameof(prefix));
var keys = _cacheKeys.Where(x => x.StartsWith(prefix.Trim(), StringComparison.OrdinalIgnoreCase));
if (_options.EnableLogging)
{
_logger?.LogInformation($"RemoveByPrefixAsync : prefix = {prefix}");
}
if (keys.Any())
{
var tasks = new List <Task>();
foreach (var item in keys)
{
tasks.Add(RemoveAsync(item));
}
await Task.WhenAll(tasks);
}
}
public override void BaseRemoveAll(IEnumerable<string> cacheKeys)
{
ArgumentCheck.NotNullAndCountGTZero(cacheKeys, nameof(cacheKeys));
foreach (string key in cacheKeys)
{
if (string.IsNullOrWhiteSpace(key))
continue;
var path = GetRawPath(key);
if (!File.Exists(path))
{
continue;
}
if (DeleteFileWithRetry(path))
{
_cacheKeysMap.TryRemove(key, out _);
}
}
}
/// <summary>
/// Gets all async.
/// </summary>
/// <returns>The all async.</returns>
/// <param name="cacheKeys">Cache keys.</param>
/// <typeparam name="T">The 1st type parameter.</typeparam>
public override async Task <IDictionary <string, CacheValue <T> > > BaseGetAllAsync <T>(IEnumerable <string> cacheKeys)
{
ArgumentCheck.NotNullAndCountGTZero(cacheKeys, nameof(cacheKeys));
var values = await _memcachedClient.GetAsync <T>(cacheKeys);
var result = new Dictionary <string, CacheValue <T> >();
foreach (var item in values)
{
if (item.Value != null)
{
result.Add(item.Key, new CacheValue <T>(item.Value, true));
}
else
{
result.Add(item.Key, CacheValue <T> .NoValue);
}
}
return(result);
}
public List <bool> StringSetBit(string cacheKey, IEnumerable <long> offsets, bool value)
{
ArgumentCheck.NotNullOrWhiteSpace(cacheKey, nameof(cacheKey));
var results = new Task <bool> [offsets.Count()];
var batch = _redisDb.CreateBatch();
var index = 0;
foreach (var position in offsets)
{
results[index] = batch.StringSetBitAsync(cacheKey, position, value);
index++;
}
batch.Execute();
if (!Task.WaitAll(results, TimeoutMilliseconds))
{
throw new TimeoutException();
}
return(results.Select(r => r.Result).ToList());
}
public static async Task <bool> SafedUnLockAsync(this IDatabase redisDb, string cacheKey, string lockValue)
{
ArgumentCheck.NotNullOrWhiteSpace(cacheKey, nameof(cacheKey));
ArgumentCheck.NotNullOrWhiteSpace(lockValue, nameof(lockValue));
var lockKey = GetLockKey(cacheKey);
AutoDelayTimers.Instance.CloseTimer(lockKey);
var script = @"local invalue = @value
local currvalue = redis.call('get',@key)
if(invalue==currvalue) then redis.call('del',@key)
return 1
else
return 0
end";
var parameters = new { key = lockKey, value = lockValue };
var prepared = LuaScript.Prepare(script);
var result = (int)await redisDb.ScriptEvaluateAsync(prepared, parameters);
return(result == 1);
}
/// <summary>
/// Removes the by prefix async.
/// </summary>
/// <returns>The by prefix async.</returns>
/// <param name="prefix">Prefix.</param>
public override async Task BaseRemoveByPrefixAsync(string prefix)
{
ArgumentCheck.NotNullOrWhiteSpace(prefix, nameof(prefix));
prefix = this.HandlePrefix(prefix);
if (_options.EnableLogging)
{
_logger?.LogInformation($"RemoveByPrefixAsync : prefix = {prefix}");
}
var redisKeys = this.SearchRedisKeys(prefix);
var tasks = new List <Task <long> >();
foreach (var item in redisKeys)
{
tasks.Add(_cache.DelAsync(item));
}
await Task.WhenAll(tasks);
}
/// <summary>
/// Gets the specified cacheKey, dataRetriever and expiration async.
/// </summary>
/// <returns>The async.</returns>
/// <param name="cacheKey">Cache key.</param>
/// <param name="dataRetriever">Data retriever.</param>
/// <param name="expiration">Expiration.</param>
/// <typeparam name="T">The 1st type parameter.</typeparam>
public async Task <CacheValue <T> > GetAsync <T>(string cacheKey, Func <Task <T> > dataRetriever, TimeSpan expiration)
{
ArgumentCheck.NotNullOrWhiteSpace(cacheKey, nameof(cacheKey));
ArgumentCheck.NotNegativeOrZero(expiration, nameof(expiration));
var result = await _memcachedClient.GetValueAsync <T>(this.HandleCacheKey(cacheKey));
if (result != null)
{
CacheStats.OnHit();
if (_options.EnableLogging)
{
_logger?.LogInformation($"Cache Hit : cachekey = {cacheKey}");
}
return(new CacheValue <T>(result, true));
}
CacheStats.OnMiss();
if (_options.EnableLogging)
{
_logger?.LogInformation($"Cache Missed : cachekey = {cacheKey}");
}
var item = await dataRetriever?.Invoke();
if (item != null)
{
await this.SetAsync(cacheKey, item, expiration);
return(new CacheValue <T>(item, true));
}
else
{
return(CacheValue <T> .NoValue);
}
}
/// <summary>
/// Get the specified cacheKey, dataRetriever and expiration.
/// </summary>
/// <returns>The get.</returns>
/// <param name="cacheKey">Cache key.</param>
/// <param name="dataRetriever">Data retriever.</param>
/// <param name="expiration">Expiration.</param>
/// <typeparam name="T">The 1st type parameter.</typeparam>
public override CacheValue <T> BaseGet <T>(string cacheKey, Func <T> dataRetriever, TimeSpan expiration)
{
ArgumentCheck.NotNullOrWhiteSpace(cacheKey, nameof(cacheKey));
ArgumentCheck.NotNegativeOrZero(expiration, nameof(expiration));
var result = BaseGet <T>(cacheKey);
if (result.HasValue)
{
return(result);
}
var item = dataRetriever();
if (item != null || _options.CacheNulls)
{
Set(cacheKey, item, expiration);
result = new CacheValue <T>(item, true);
}
return(result);
}
/// <summary>
/// Tries the set.
/// </summary>
/// <returns><c>true</c>, if set was tryed, <c>false</c> otherwise.</returns>
/// <param name="cacheKey">Cache key.</param>
/// <param name="cacheValue">Cache value.</param>
/// <param name="expiration">Expiration.</param>
/// <typeparam name="T">The 1st type parameter.</typeparam>
public override bool BaseTrySet <T>(string cacheKey, T cacheValue, TimeSpan expiration)
{
ArgumentCheck.NotNullOrWhiteSpace(cacheKey, nameof(cacheKey));
ArgumentCheck.NotNull(cacheValue, nameof(cacheValue), _options.CacheNulls);
ArgumentCheck.NotNegativeOrZero(expiration, nameof(expiration));
if (MaxRdSecond > 0)
{
var addSec = new Random().Next(1, MaxRdSecond);
expiration.Add(new TimeSpan(0, 0, addSec));
}
var rows = _cache.Execute(ConstSQL.TRYSETSQL, new
{
cachekey = cacheKey,
name = _name,
cachevalue = Newtonsoft.Json.JsonConvert.SerializeObject(cacheValue),
expiration = expiration.Ticks / 10000000
});
return(rows > 0);
}
/// <summary>
/// Gets the specified cacheKey, dataRetriever and expiration async.
/// </summary>
/// <returns>The async.</returns>
/// <param name="cacheKey">Cache key.</param>
/// <param name="dataRetriever">Data retriever.</param>
/// <param name="expiration">Expiration.</param>
/// <typeparam name="T">The 1st type parameter.</typeparam>
public override async Task <CacheValue <T> > BaseGetAsync <T>(string cacheKey, Func <Task <T> > dataRetriever, TimeSpan expiration)
{
ArgumentCheck.NotNullOrWhiteSpace(cacheKey, nameof(cacheKey));
ArgumentCheck.NotNegativeOrZero(expiration, nameof(expiration));
var result = await BaseGetAsync <T>(cacheKey);
if (result.HasValue)
{
return(result);
}
var flag = await _memcachedClient.StoreAsync(Enyim.Caching.Memcached.StoreMode.Add,
this.HandleCacheKey($"{cacheKey}_Lock"), 1, TimeSpan.FromMilliseconds(_options.LockMs));
if (!flag)
{
await Task.Delay(_options.SleepMs);
return(await GetAsync(cacheKey, dataRetriever, expiration));
}
var item = await dataRetriever();
if (item != null || _options.CacheNulls)
{
await this.SetAsync(cacheKey, item, expiration);
await _memcachedClient.RemoveAsync(this.HandleCacheKey($"{cacheKey}_Lock"));
return(new CacheValue <T>(item, true));
}
else
{
await _memcachedClient.RemoveAsync(this.HandleCacheKey($"{cacheKey}_Lock"));
return(CacheValue <T> .NoValue);
}
}