/// <summary>
/// 获取给实体属性定义的所有验证器序列，这些验证器通过 <see cref="MetadataTypeAttribute"/> 特性所指定的类型列定义。
/// </summary>
/// <param name="property">要获取验证器的实体属性。</param>
/// <exception cref="ArgumentNullException"><paramref name="property"/> 参数为 null。</exception>
/// <returns>一个 <see cref="ValidationAttribute"/> 的序列。</returns>
public static IEnumerable <ValidationAttribute> GetValidations(IProperty property)
{
Guard.ArgumentNull(property, "property");
var entityType = property.EntityType;
var propertyName = property.Name;
return(locker.LockRead(() =>
{
Dictionary <string, List <ValidationAttribute> > pdic = null;
if (!propertyValidations.TryGetValue(entityType, out pdic))
{
locker.LockWrite(() =>
{
pdic = propertyValidations.TryGetValue(entityType, () => GetPropertyValidations(entityType));
});
}
List <ValidationAttribute> attrs = null;
if (!pdic.TryGetValue(propertyName, out attrs))
{
locker.LockWrite(() =>
{
attrs = pdic.TryGetValue(propertyName, () => new List <ValidationAttribute>());
});
}
return attrs;
}));
}
void ICommandTracker.Write(IDbCommand command, TimeSpan period)
{
CreateDirectory();
locker.LockWrite(() =>
{
var fileName = Path.Combine(logPath, DateTime.Today.ToString("yyyy-MM-dd") + ".log");
using (var stream = new StreamWriter(fileName, true))
{
stream.WriteLine("time: " + DateTime.Now);
stream.WriteLine("sql: " + command.Output());
stream.WriteLine("timer(s): " + period);
stream.WriteLine("===========================================================");
stream.WriteLine();
}
});
}
/// <summary>
/// 尝试获取指定缓存键的对象，如果没有则使用工厂函数添加对象到缓存中。
/// </summary>
/// <typeparam name="T">缓存对象的类型。</typeparam>
/// <param name="cacheKey">用于引用对象的缓存键。</param>
/// <param name="factory">用于添加缓存对象的工厂函数。</param>
/// <param name="expiration">判断对象过期的对象。</param>
/// <returns></returns>
public T TryGet <T>(string cacheKey, System.Func <T> factory, System.Func <ICacheItemExpiration> expiration = null)
{
try
{
using (var client = manager.GetClient())
{
var set = client.As <T>();
T value = default(T);
locker.LockRead(() =>
{
if (!set.ContainsKey(cacheKey))
{
if (factory != null)
{
locker.LockWrite(() =>
{
value = factory();
DateTime?time = null;
if (expiration != null)
{
var relative = expiration() as RelativeTime;
if (relative != null)
{
time = DateTime.Now + relative.Expiration;
}
}
if (time == null)
{
client.Set <T>(cacheKey, value);
}
else
{
client.Set <T>(cacheKey, value, time.Value);
}
});
}
}
else
{
value = set.GetValue(cacheKey);
}
});
return(value);
}
}
catch (Exception exp)
{
throw new InvalidOperationException("无法完成缓存操作。", exp);
}
}
/// <summary>
/// 将抛出的异常写入到日志记录器。
/// </summary>
/// <param name="logType">信息类别。</param>
/// <param name="message">异常的说明信息。</param>
/// <param name="exception">应用程序异常。</param>
private void Write(string logType, object message, Exception exception)
{
var content = GetLogContent(message, exception);
var fileName = CreateLogFileName(logType);
locker.LockWrite(() =>
{
using (var writer = new StreamWriter(fileName, true, Encoding.Default))
{
writer.WriteLine(content);
writer.Flush();
}
});
}
/// <summary>
/// 添加类型与缓存键的映射。
/// </summary>
/// <param name="types"></param>
/// <param name="cacheKey"></param>
public static void AddKeys(List <Type> types, string cacheKey)
{
foreach (var ctype in types)
{
var list = cache.GetOrAdd(ctype, t => new List <string>());
locker.LockWrite(() =>
{
if (!list.Contains(cacheKey))
{
list.Add(cacheKey);
}
});
}
}
/// <summary>
/// 将抛出的异常写入到日志记录器。
/// </summary>
/// <param name="logType">信息类别。</param>
/// <param name="message">异常的说明信息。</param>
/// <param name="exception">应用程序异常。</param>
private void Write(string logType, object message, Exception exception)
{
locker.LockWrite(() =>
{
var fileName = CreateLogFileName(logType);
using (var writer = new StreamWriter(fileName, true, Encoding.GetEncoding(0)))
{
writer.WriteLine("Time: " + DateTime.Now);
writer.WriteLine();
if (message != null)
{
writer.WriteLine(message);
}
writer.WriteLine();
if (exception != null)
{
writer.WriteLine("--Exceptions--");
#if !NET35
var aggExp = exception as AggregateException;
if (aggExp != null && aggExp.InnerExceptions.Count > 0)
{
foreach (var e in aggExp.InnerExceptions)
{
WriteException(writer, e);
}
}
else
{
WriteException(writer, exception);
}
#else
WriteException(writer, exception);
#endif
}
writer.WriteLine("*****************************************************************");
writer.Flush();
}
});
}
/// <summary>
/// 添加类型与缓存键的映射。
/// </summary>
/// <param name="types"></param>
/// <param name="cacheKey"></param>
public static void AddKeys(List <Type> types, string cacheKey)
{
var cacheMgr = CacheManagerFactory.CreateManager();
var hashSet = cacheMgr.GetHashSet <string, List <string> >(ROOT_KEY);
foreach (var ctype in types)
{
locker.LockWrite(() =>
{
var keys = hashSet.TryGet(ctype.Name, () => new List <string>());
if (!keys.Contains(cacheKey))
{
keys.Add(cacheKey);
}
hashSet.Add(ctype.Name, keys);
});
}
}
