/// <inheritdoc />
public object Transform(object originalParameter, TypeInfo destinationParameterType)
{
ParameterTransformerCacheEntry transformer = this.transformerCache.GetTransformer(destinationParameterType);
if (transformer == null)
{
return(null);
}
object destinationParameter = transformer.ParameterFactory(destinationParameterType);
return(transformer.Transformer(originalParameter, destinationParameter));
}
/// <summary>
/// Gets a transformer by its type info key.
/// </summary>
/// <param name="type">TypeInfo key.</param>
/// <returns>
/// Existing <see cref="ParameterTransformerCacheEntry"/>; otherwise the system creates it and caches it.
/// </returns>
public ParameterTransformerCacheEntry GetTransformer(TypeInfo type)
{
if (!this.cache.TryGetValue(type, out ParameterTransformerCacheEntry transformer))
{
TransformerModel transformerModel = this.GetTransformerModel(type);
if (transformerModel == null)
{
return(null);
}
transformer = new ParameterTransformerCacheEntry(
transformerModel.Source,
transformerModel.Destination,
type,
this.parameterFactory.Create,
transformerModel.Transformer);
this.cache.Add(type, transformer);
}
return(transformer);
}