/// <summary>
/// 转换。
/// </summary>
/// <param name="instance">需要转换的实例。</param>
/// <param name="conversionType">转换的类型。</param>
/// <returns>转换之后的类型，如果无法转换则返回null。</returns>
/// <exception cref="ArgumentNullException">instance</exception>
/// <exception cref="ArgumentNullException">conversionType</exception>
/// <exception cref="ArgumentNullException">instance</exception>
/// <exception cref="ArgumentNullException">conversionType</exception>
public object Convert(object instance, Type conversionType)
{
if (instance == null)
{
throw new ArgumentNullException(nameof(instance));
}
if (conversionType == null)
{
throw new ArgumentNullException(nameof(conversionType));
}
if (conversionType.GetTypeInfo().IsInstanceOfType(instance))
{
return(instance);
}
if (_logger.IsEnabled(LogLevel.Debug))
{
_logger.LogDebug($"准备将 {instance.GetType()} 转换为：{conversionType}。");
}
object result = null;
foreach (var converter in _converters)
{
result = converter(instance, conversionType);
if (result != null)
{
break;
}
}
if (result != null)
{
return(result);
}
var exception = new CPlatformException($"无法将实例：{instance}转换为{conversionType}。");
if (_logger.IsEnabled(LogLevel.Error))
{
_logger.LogError(exception, $"将 {instance.GetType()} 转换成 {conversionType} 时发生了错误。");
}
throw exception;
}
public static Exception GetExceptionByStatusCode(this RemoteInvokeResultMessage message)
{
Exception exception = null;
switch (message.StatusCode)
{
case StatusCode.BusinessError:
exception = new BusinessException(message.ExceptionMessage);
break;
case StatusCode.CommunicationError:
exception = new CommunicationException(message.ExceptionMessage);
break;
case StatusCode.RequestError:
case StatusCode.CPlatformError:
case StatusCode.UnKnownError:
exception = new CPlatformException(message.ExceptionMessage, message.StatusCode);
break;
case StatusCode.DataAccessError:
exception = new DataAccessException(message.ExceptionMessage);
break;
case StatusCode.UnAuthentication:
exception = new UnAuthenticationException(message.ExceptionMessage);
break;
case StatusCode.UnAuthorized:
exception = new UnAuthorizedException(message.ExceptionMessage);
break;
case StatusCode.UserFriendly:
exception = new UserFriendlyException(message.ExceptionMessage);
break;
case StatusCode.ValidateError:
exception = new ValidateException(message.ExceptionMessage);
break;
default:
exception = new CPlatformException(message.ExceptionMessage, message.StatusCode);
break;
}
return(exception);
}
private object ConvertInstaceType(object instance, Type conversionType)
{
object result = null;
foreach (var converter in _converters)
{
result = converter(instance, conversionType);
if (result != null)
{
break;
}
}
if (result != null)
{
return(result);
}
var exception = new CPlatformException($"无法将实例：{instance}转换为{conversionType}。", StatusCode.CPlatformError);
if (_logger.IsEnabled(LogLevel.Error))
{
_logger.LogError(exception, $"将 {instance.GetType()} 转换成 {conversionType} 时发生了错误。");
}
throw exception;
}
