/// <summary>
/// 设置指定名称的参数值。
/// </summary>
/// <typeparam name="TValue">参数值的类型。</typeparam>
/// <param name="provider"></param>
/// <param name="key">参数名称。</param>
/// <param name="value"></param>
public static void Set <TValue>(this IParamProvider provider,
string key, TValue value)
{
if (string.IsNullOrEmpty(key))
{
return;
}
if (value == null)
{
if (provider.Parameters.ContainsKey(key))
{
provider.Parameters.Remove(key);
}
return;
}
if (provider.Parameters.ContainsKey(key))
{
provider.Parameters[key] = value.ToString();
}
else
{
provider.Parameters.Add(key, value.ToString());
}
}
/// <summary>
/// 根据名称返回参数值。
/// </summary>
/// <param name="provider"></param>
/// <param name="key">参数名称。</param>
/// <param name="default">参数值为 null 时返回的默认值。</param>
/// <returns></returns>
public static bool GetBoolean(this IParamProvider provider,
string key, bool @default = false)
{
var s = GetString(provider, key);
if (string.IsNullOrEmpty(s))
{
return(@default);
}
switch (s.ToUpper())
{
case "TRUE":
case "T":
case "YES":
case "Y":
case "1":
return(true);
case "FALSE":
case "F":
case "NO":
case "N":
case "0":
return(false);
}
return(@default);
}
public MenuRunner(IPresenter presenter, IParamProvider provider, IParamVaidator <T> validator, IBrowser browser)
{
Menus = new Dictionary <TKey, IMenu>();
Presenter = presenter;
Provider = provider;
ParamVaidator = validator;
Browser = browser;
}
/// <summary>
/// 设置指定名称的参数值。
/// </summary>
/// <param name="provider"></param>
/// <param name="key">参数名称。</param>
/// <param name="value">参数值。</param>
/// <param name="maxLength">
/// 字符串的最大长度。如果超出 maxLength，则抛出 System.ArgumentOutOfRangeException 异常。
/// </param>
/// <exception cref="System.ArgumentOutOfRangeException">
/// 如果超出 maxLength，则抛出 System.ArgumentOutOfRangeException 异常。
/// </exception>
public static void Set(this IParamProvider provider,
string key, string value, int maxLength)
{
if (value != null && value.Length > maxLength)
{
throw new ArgumentOutOfRangeException("value");
}
Set(provider, key, value);
}
/// <summary>
/// 根据名称返回参数值。
/// </summary>
/// <param name="provider"></param>
/// <param name="key">参数名称。</param>
/// <returns></returns>
public static string GetString(this IParamProvider provider, string key)
{
if (provider.Parameters.ContainsKey(key))
{
return(provider.Parameters[key]);
}
else
{
return(null);
}
}
/// <summary>
/// 设置指定名称的参数值。
/// </summary>
/// <param name="provider"></param>
/// <param name="key">参数名称。</param>
/// <param name="value">参数值。</param>
/// <param name="format">用于 DateTime 格式化的字符串。例如：yyyy-MM-dd HH:mm:ss。</param>
public static void Set(this IParamProvider provider,
string key, DateTime?value, string format)
{
if (value == null)
{
Set(provider, key, value);
}
else
{
Set(provider, key, ((DateTime)value).ToString(format));
}
}
/// <summary>
/// 根据名称返回参数值。
/// </summary>
/// <param name="provider"></param>
/// <param name="key">参数名称。</param>
/// <returns></returns>
public static bool?GetNullableBoolean(
this IParamProvider provider, string key)
{
var s = GetString(provider, key);
if (string.IsNullOrEmpty(s))
{
return(null);
}
return(GetBoolean(provider, key, false));
}
/// <summary>
/// 根据名称返回参数值。
/// </summary>
/// <param name="provider"></param>
/// <param name="key">参数名称。</param>
/// <returns></returns>
public static AliBoolean GetBoolOrDefault(this IParamProvider provider, string key)
{
var b = GetNullableBoolean(provider, key);
if (b != null)
{
return(new AliBoolean(b.Value));
}
else
{
return(null);
}
}
/// <summary>
/// 根据名称返回参数值。
/// </summary>
/// <typeparam name="TEnum">返回的枚举名称。</typeparam>
/// <param name="provider"></param>
/// <param name="key">参数名称。</param>
/// <returns></returns>
public static TEnum GetEnum <TEnum>(
this IParamProvider provider, string key)
where TEnum : struct
{
var s = GetString(provider, key);
if (Enum.IsDefined(typeof(TEnum), s))
{
return((TEnum)Enum.Parse(typeof(TEnum), s));
}
return(default(TEnum));
}
/// <summary>
/// 根据名称返回参数值。
/// </summary>
/// <param name="provider"></param>
/// <param name="key">参数名称。</param>
/// <returns></returns>
public static AliDateTime GetDate(
this IParamProvider provider, string key)
{
var s = GetString(provider, key);
try
{
return(AliDateTime.Parse(s));
}
catch
{
return(null);
}
}
/// <summary>
/// 设置指定名称的参数值。
/// </summary>
/// <param name="provider"></param>
/// <param name="key">要设置的参数名称。</param>
/// <param name="value">要设置的参数值。</param>
/// <param name="minimum">
/// 参数的最小值。如果参数值小于最小值，则抛出 System.ArgumentOutOfRangeException 异常。
/// </param>
/// <param name="maximum">
/// 参数的最大值。如果参数值大于最大值，则抛出 System.ArgumentOutOfRangeException 异常。
/// </param>
/// <exception cref="System.ArgumentOutOfRangeException">
/// 如果参数值小于最小值或大于最大值，则抛出 System.ArgumentOutOfRangeException 异常。
/// </exception>
public static void Set(this IParamProvider provider,
string key, double?value, double minimum, double maximum)
{
if (value.HasValue)
{
var d = value.Value;
if (d < minimum || d > maximum)
{
throw new ArgumentOutOfRangeException("value", d, null);
}
}
Set(provider, key, value);
}
/// <summary>
/// 根据名称返回参数值。
/// </summary>
/// <param name="provider"></param>
/// <param name="key">参数名称。</param>
/// <param name="format">用于 DateTime 格式化的字符串。</param>
/// <returns></returns>
public static DateTime?GetNullableDateTime(
this IParamProvider provider, string key, string format)
{
var s = provider.GetString(key);
if (!string.IsNullOrEmpty(s))
{
return(DateTime.ParseExact(s, format, null));
}
else
{
return(null);
}
}
/// <summary>
/// 根据名称返回参数值。
/// </summary>
/// <param name="provider"></param>
/// <param name="key">参数名称。</param>
/// <returns></returns>
public static double?GetNullableDouble(
this IParamProvider provider, string key)
{
var s = provider.GetString(key);
double ret;
if (double.TryParse(s, out ret))
{
return(ret);
}
else
{
return(null);
}
}
/// <summary>
/// 根据名称返回参数值。
/// </summary>
/// <param name="provider"></param>
/// <param name="key">参数名称。</param>
/// <returns></returns>
public static IPAddress GetIPAddress(this IParamProvider provider, string key)
{
var s = GetString(provider, key);
IPAddress address;
if (IPAddress.TryParse(s, out address))
{
return(address);
}
else
{
return(null);
}
}
/// <summary>
/// 根据名称返回参数值。
/// </summary>
/// <param name="provider"></param>
/// <param name="key">参数名称。</param>
/// <param name="default">参数值为 Null 时返回的默认值。</param>
/// <returns></returns>
public static int GetInt32(this IParamProvider provider,
string key, int @default = 0)
{
var s = provider.GetString(key);
int ret;
if (int.TryParse(s, out ret))
{
return(ret);
}
else
{
return(@default);
}
}
/// <summary>
/// 返回待校验的自定义属性。
/// </summary>
/// <param name="request">待校验的请求。</param>
/// <returns>返回待校验的自定义属性。</returns>
private IEnumerable <object> GetRequiredAttributes(IParamProvider request)
{
var commandType = request.GetType();
var results = new List <object>();
foreach (var prop in commandType.GetProperties())
{
var required = prop.GetCustomAttributes(typeof(RequiredAttribute), true);
if (required != null && required.Length > 0)
{
results.AddRange(required);
}
}
return(results);
}
/// <summary>
/// 校验请求。
/// </summary>
/// <param name="provider">待校验的请求。</param>
/// <exception cref="Alipay.Validators.RequiredParameterNotExistException">如果缺少必需参数则抛出异常。</exception>
public void Validate(IParamProvider provider)
{
var requiredAttrs = this.GetRequiredAttributes(provider);
foreach (RequiredAttribute required in requiredAttrs)
{
if (string.IsNullOrEmpty(provider.GetString(required.Key)))
{
throw new RequiredParameterNotExistException
{
Provider = provider,
Key = required.Key,
};
}
}
}
/// <summary>
/// 根据名称返回参数值。
/// </summary>
/// <param name="provider"></param>
/// <param name="key">参数名称。</param>
/// <returns></returns>
public static DateTime?GetNullableDateTime(
this IParamProvider provider, string key)
{
return(GetNullableDateTime(provider, key, "yyyy-MM-dd HH:mm:ss"));
}
public ParamService(IParamProvider paramProvider)
{
ParamProvider = paramProvider;
}