public static Object InvokeConverter <TTarget>(this TTarget target, String parameter, String argument, String delimiter)
{
if (!target.HasConverter())
{
throw new CustomConverterException(parameter, argument,
$"Converter invocation impossible because of missing converter for type {((target is Type) ? (target as Type).Name : "<unknown>")}.");
}
try
{
Object converter = CustomConverterExtension.converters[CustomConverterExtension.GetQualifier(target)];
MethodInfo method = converter.GetType().GetMethod(nameof(ICustomConverter <TTarget> .Convert));
return(method.Invoke(converter, new Object[] { parameter, argument, delimiter }));
}
catch (Exception exception)
{
if (exception.InnerException is CustomConverterException)
{
throw exception.InnerException;
}
else
{
throw new CustomConverterException(parameter, argument,
"Converter invocation has failed. See inner exception for more details.", exception);
}
}
}
public static Boolean HasConverter(this Type type)
{
if (type is null)
{
return(false);
}
return(CustomConverterExtension.converters.ContainsKey(CustomConverterExtension.GetQualifier(type)));
}
public static void RemoveConverter <TTarget>(this ICustomConverter <TTarget> converter)
{
if (converter == null)
{
return;
}
String qualifier = CustomConverterExtension.GetQualifier <TTarget>();
if (CustomConverterExtension.converters.ContainsKey(qualifier))
{
CustomConverterExtension.converters.Remove(qualifier);
}
}
public static void AddConverter <TTarget>(this ICustomConverter <TTarget> converter)
{
if (converter == null)
{
return;
}
String qualifier = CustomConverterExtension.GetQualifier <TTarget>();
if (!CustomConverterExtension.converters.ContainsKey(qualifier))
{
CustomConverterExtension.converters.Add(qualifier, null);
}
CustomConverterExtension.converters[qualifier] = converter;
}
/// <summary>
/// Gets the qualifier for a particular target type.
/// </summary>
/// <remarks>
/// This method returns the qualifier for a particular target type.
/// </remarks>
/// <typeparam name="TTarget">
/// The affected custom type to get the qualifier for.
/// </typeparam>
/// <returns>
/// The qualifier for a particular target type.
/// </returns>
/// <see cref="CustomConverterExtension.GetQualifier(Type)"/>
private static String GetQualifier <TTarget>()
{
return(CustomConverterExtension.GetQualifier(typeof(TTarget)));
}
/// <summary>
/// Gets the qualifier for a particular target type.
/// </summary>
/// <remarks>
/// This method returns the qualifier for a particular target type.
/// </remarks>
/// <typeparam name="TTarget">
/// The affected custom type to get the qualifier for.
/// </typeparam>
/// <param name="target">
/// The target type to get the qualifier for.
/// </param>
/// <returns>
/// The qualifier for a particular target type.
/// </returns>
/// <see cref="CustomConverterExtension.GetQualifier(Type)"/>
private static String GetQualifier <TTarget>(TTarget target)
{
return(CustomConverterExtension.GetQualifier(target as Type));
}
