public bool TryGetPropertyInitializer <TProperty>(string propertyName, out IPropertyInitializer <TMessage, TInput> initializer)
{
var inputPropertyInfo = typeof(TInput).GetProperty(propertyName);
if (inputPropertyInfo != null)
{
var propertyType = typeof(TProperty);
var inputPropertyType = inputPropertyInfo.PropertyType;
// exactly the same type, we just copy it over unmodified
if (inputPropertyType == propertyType)
{
initializer = new CopyPropertyInitializer <TMessage, TInput, TProperty>(propertyName);
return(true);
}
// can only copy to object, no idea what the destination type would/could be
if (propertyType == typeof(object))
{
var type = typeof(CopyObjectPropertyInitializer <, ,>).MakeGenericType(typeof(TMessage), typeof(TInput), inputPropertyType);
initializer = (IPropertyInitializer <TMessage, TInput>)Activator.CreateInstance(type, propertyName, propertyName);
return(true);
}
if (PropertyInitializerCache.TryGetFactory <TProperty>(inputPropertyType, out var propertyConverter))
{
initializer = propertyConverter.CreatePropertyInitializer <TMessage, TInput>(propertyName);
return(true);
}
}
initializer = null;
return(false);
}
public bool TryGetHeaderInitializer <TProperty>(string propertyName, out IHeaderInitializer <TMessage, TInput> initializer)
{
// headers use a double underscore prefix
string inputPropertyName = new StringBuilder(propertyName.Length + 2).Append("__").Append(propertyName).ToString();
var inputPropertyInfo = typeof(TInput).GetProperty(inputPropertyName);
if (inputPropertyInfo != null)
{
var propertyType = typeof(TProperty);
var inputPropertyType = inputPropertyInfo.PropertyType;
// exactly the same type, we just copy it over unmodified
if (inputPropertyType == propertyType)
{
initializer = new CopyHeaderInitializer <TMessage, TInput, TProperty>(propertyName, inputPropertyName);
return(true);
}
if (PropertyInitializerCache.TryGetFactory <TProperty>(inputPropertyType, out var propertyConverter))
{
initializer = propertyConverter.CreateHeaderInitializer <TMessage, TInput>(propertyName, inputPropertyName);
return(true);
}
}
initializer = default;
return(false);
}
public void Nullable_to_non_nullable()
{
Assert.That(PropertyInitializerCache.TryGetFactory <int>(typeof(int?), out var converter), Is.True);
Assert.That(converter.IsPropertyTypeConverter <int?>(out var typeConverter), Is.True);
Assert.That(typeConverter, Is.TypeOf <FromNullableTypeConverter <int> >());
Assert.That(typeConverter.TryConvert(37, out int result), Is.True);
Assert.That(result, Is.EqualTo(37));
}
public void Non_nullable_to_nullable_wider_type()
{
Assert.That(PropertyInitializerCache.TryGetFactory <long?>(typeof(int), out var converter), Is.True);
Assert.That(converter.IsPropertyTypeConverter <int>(out var typeConverter), Is.True);
Assert.That(typeConverter, Is.TypeOf <ToNullableTypeConverter <long, int> >());
Assert.That(typeConverter.TryConvert(37, out long?result), Is.True);
Assert.That(result.Value, Is.EqualTo(37));
}
public async Task Task_nullable_to_non_nullable()
{
Assert.That(PropertyInitializerCache.TryGetFactory <int>(typeof(Task <int?>), out var converter), Is.True);
Assert.That(converter.IsMessagePropertyConverter <Task <int?> >(out var typeConverter), Is.True);
Assert.That(typeConverter, Is.TypeOf <AsyncConvertPropertyConverter <int, int?> >());
var context = MessageFactoryCache <SimpleRequest> .Factory.Create(new BaseInitializeContext(CancellationToken.None));
var result = await typeConverter.Convert(context, Task.FromResult((int?)37));
Assert.That(result, Is.EqualTo(37));
}
public void Non_nullable_to_wider_type()
{
Assert.That(PropertyInitializerCache.TryGetFactory <long>(typeof(int), out var converter), Is.True);
Assert.That(converter.IsPropertyTypeConverter <int>(out var typeConverter), Is.True);
Assert.That(typeConverter, Is.TypeOf <LongTypeConverter>());
}
public void No_converter_for_same_type()
{
Assert.That(PropertyInitializerCache.TryGetFactory <int>(typeof(int), out var converter), Is.False);
}