/// <summary>
/// 获取value
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="value"></param>
/// <returns></returns>
public override bool TryGetValue <T>(string key, out T value)
{
try
{
T temp = default(T);
CacheKeyMapDescriptor cacheKeyMap = EnsureKeyExist(key);
OnOperating("开始尝试获取值:starting:key:" + key + ",cacheId:" + cacheKeyMap);
if (cacheKeyMap == null)
{
value = default(T);
return(false);
}
MongoDBCacheEntity entity = GetMongoDBEntity(cacheKeyMap);
OnOperating("尝试获取值结束：end:key:" + key + ",cacheId:" + cacheKeyMap.CacheId + ",result:" + JsonConvert.SerializeObject(entity));
value = default(T);
value = JsonConvert.DeserializeObject <T>(entity.CacheValue);
return(true);
}
catch (Exception ex)
{
OnOperating("尝试获取值异常：exception:key:" + key + ",excption:" + JsonConvert.SerializeObject(ex));
value = default(T);
return(false);
}
}
/// <summary>
/// 获取value
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public override object GetValue(string key)
{
try
{
CacheKeyMapDescriptor cacheKeyMap = EnsureKeyExist(key);
OnOperating("开始获取value:starting:key:" + key + ",cacheId:" + cacheKeyMap.CacheId);
if (cacheKeyMap == null)
{
return(null);
}
MongoDBCacheEntity entity = GetMongoDBEntity(cacheKeyMap);
if (entity != null)
{
OnOperating("获取value成功:end-->:key:" + key + ",cacheId:" + cacheKeyMap.CacheId + ",value:" + entity.CacheValue);
return(entity.CacheValue);
}
OnOperating("获取value失败:未找到key:" + key + "对应的值");
return(null);
}
catch (Exception ex)
{
OnOperating("获取value异常:" + JsonConvert.SerializeObject(ex) + "");
return(null);
}
}
///// <summary>
/////设置value
///// </summary>
///// <typeparam name="T"></typeparam>
///// <param name="key"></param>
///// <param name="value"></param>
///// <param name="expireDate"></param>
//private override bool SetValue<T>(string key, T value, DateTime expireDate)
//{
// try
// {
// string cacheId = CacheIdGeneratorManger.Instance.GenerateCacheId();
// OnOperating("开始写入值:starting:key:" + key + ",cacheId:" + cacheId + ",value:" + JsonConvert.SerializeObject(value) + ",expireDate:" + expireDate);
// MongoDBCacheEntity cache = new MongoDBCacheEntity();
// cache.ApplicationName = this.pApplicationName;
// cache.CacheId = cacheId;
// cache.Created = DateTime.Now;
// cache.CacheKey = key;
// cache.ExpireDate = expireDate;
// cache.CacheSta = CacheStatus.Effective;
// cache.CacheValue = JsonConvert.SerializeObject(value);
// MongoCollection<MongoDBCacheEntity> collection = DistributedCacheHelper.GetMongoDBCollection(cacheId);
// if (collection != null)
// {
// try
// {
// var query = Query.And(Query.EQ("CacheKey", key));
// collection.Remove(query);
// }
// catch(Exception ex)
// { }
// WriteConcernResult res = collection.Save(cache);
// OnOperating("写入完成end:key:" + key + ",cacheId:" + cacheId + ",result:" + res.Ok + "," + res.ErrorMessage);
// if (res.Ok)//成功后
// {
// CacheKeyMapManger.Instance.AddCacheKeyMap(key, cacheId, expireDate);
// return true;
// }
// }
// return false;
// }
// catch(Exception ex)
// {
// OnOperating("写入Excption:key:" + key + ",exception:" + JsonConvert.SerializeObject(ex));
// return false;
// }
//}
/// <summary>
/// 设置缓存
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="value"></param>
/// <param name="cacheLimit"></param>
/// <returns></returns>
public override bool SetValue <T>(string key, T value, Cachelimit cacheLimit, DateTime?expireDate)
{
try
{
string cacheId = CacheIdGeneratorManger.Instance.GenerateCacheId();
OnOperating("开始写入值:starting:key:" + key + ",cacheId:" + cacheId + ",value:" + JsonConvert.SerializeObject(value) + ",cacheLimit:" + cacheLimit.ToString());
MongoDBCacheEntity cache = new MongoDBCacheEntity();
cache.ApplicationName = this.pApplicationName;
cache.CacheId = cacheId;
cache.Created = DateTime.Now;
cache.CacheKey = key;
cache.ExpireDate = cacheLimit == Cachelimit.Forever ? Convert.ToDateTime("2099-12-30") : (cacheLimit == Cachelimit.CurrentDay ? Convert.ToDateTime(DateTime.Now.ToString("yyyy-MM-dd") + " 23:59:59") : Convert.ToDateTime(expireDate));
cache.CacheSta = CacheStatus.Effective;
cache.CacheValue = JsonConvert.SerializeObject(value);
if (cacheLimit == Cachelimit.ByExpireDate)
{
}
MongoCollection <MongoDBCacheEntity> collection = DistributedCacheHelper.GetMongoDBCollection(cacheId, cacheLimit);
if (collection != null)
{
try
{
var query = Query.And(Query.EQ("CacheKey", key));
collection.Remove(query);
}
catch (Exception ex)
{ }
WriteConcernResult res = collection.Save(cache);
TimeSpan timespan = cache.ExpireDate.Subtract(DateTime.Now);
if (cacheLimit != Cachelimit.Forever)
{
if (!collection.IndexExists(new IndexKeysBuilder().Ascending("ExpireDate")))
{
collection.EnsureIndex(new IndexKeysBuilder().Ascending("ExpireDate"), IndexOptions.SetTimeToLive(timespan));
}
}
OnOperating("写入完成end:key:" + key + ",cacheId:" + cacheId + ",result:" + res.Ok + "," + res.ErrorMessage);
if (res.Ok)//成功后
{
CacheKeyMapManger.Instance.AddCacheKeyMap(key, cacheId, expireDate, cacheLimit);
return(true);
}
}
return(false);
}
catch (Exception ex)
{
OnOperating("写入Excption:key:" + key + ",exception:" + JsonConvert.SerializeObject(ex));
return(false);
}
}
