/// <summary>
/// Add an alternative mapping destination type, and provide the opportunity to customize that.
/// </summary>
/// <typeparam name="TNewDestType"></typeparam>
/// <param name="defaultIncludes"></param>
/// <param name="config"></param>
/// <returns></returns>
public ProjectionDefinitionConfiguration <TSourceType, TNewDestType> AlternativeMap <TNewDestType>(
string defaultIncludes = null,
Action <ProjectionDefinitionConfiguration <TSourceType, TNewDestType> > config = null)
{
var parsedDefaultIncludes = (defaultIncludes == null) ? new List <PropertyReference> {
} : (List <PropertyReference>)PropertyReference.Parse(defaultIncludes);
defaultIncludes = PropertyReference.CompareAndConstructDefaultIncludes(parsedDefaultIncludes, typeof(TNewDestType).GetTypeInfo());
var newMapping = new ProjectionDefinitionConfiguration <TSourceType, TNewDestType>
{
InternalMappingDefinition = InternalMappingDefinition,
InternalProjectionDefinition = new ProjectionDefinition
{
DefaultIncludes = defaultIncludes,
DestinationType = typeof(TNewDestType),
}
};
InternalMappingDefinition.Destinations.Add(typeof(TNewDestType), newMapping.InternalProjectionDefinition);
if (config != null)
{
config(newMapping);
}
return(newMapping);
}
/// <summary>
/// Add a mapping of a data type to a projection type
/// </summary>
/// <typeparam name="TSourceType"></typeparam>
/// <typeparam name="TDestType"></typeparam>
/// <param name="defaultIncludes"></param>
/// <param name="config"></param>
/// <returns></returns>
public PopcornConfiguration Map <TSourceType, TDestType>(
string defaultIncludes = null,
Action <MappingDefinitionConfiguration <TSourceType, TDestType> > config = null)
{
var sourceType = typeof(TSourceType);
var destType = typeof(TDestType);
// Validate and construct the actual default includes from both attributes and those passed in at the time of the mapping
var destTypeInfo = typeof(TDestType).GetTypeInfo();
var parsedDefaultIncludes = (defaultIncludes == null) ? new List <PropertyReference> {
} : (List <PropertyReference>)PropertyReference.Parse(defaultIncludes);
defaultIncludes = PropertyReference.CompareAndConstructDefaultIncludes(parsedDefaultIncludes, destTypeInfo);
var mappingConfiguration = new MappingDefinitionConfiguration <TSourceType, TDestType> {
};
// Assign the existing mapping to be configured should it already exist
if (_expander.Mappings.ContainsKey(sourceType))
{
// We will allow a client to reference the same mapping multiple times to add more translations etc,
// but ONLY if the types remain consistent!
if (_expander.Mappings[sourceType].DefaultDestinationType != destType)
{
throw new InvalidOperationException($"Expander was default-mapped multiple times for {sourceType}.");
}
// Assign the existing mapping information
mappingConfiguration.InternalMappingDefinition = _expander.Mappings[sourceType];
mappingConfiguration.InternalProjectionDefinition = _expander.Mappings[sourceType].Destinations[destType];
}
else
{
// Create the configuration starting with the 'default' mapping
mappingConfiguration.InternalMappingDefinition = new MappingDefinition
{
DefaultDestinationType = destType,
};
// And assign it a projecion definition
mappingConfiguration.InternalProjectionDefinition = new ProjectionDefinition
{
DefaultIncludes = defaultIncludes,
DestinationType = destType,
};
mappingConfiguration.InternalMappingDefinition.Destinations.Add(destType, mappingConfiguration.InternalProjectionDefinition);
_expander.Mappings.Add(typeof(TSourceType), mappingConfiguration.InternalMappingDefinition);
}
if (config != null)
{
config(mappingConfiguration);
}
return(this);
}