private static ValidationResult <UserMessage> Map(UserMessageXml userMessage)
{
ValidationResult <UserMessage> CreateModel(UserMessageXml validated)
{
var transactionsResult = NonEmptyEnumerable <int> .Create(validated.Transactions);
var propertiesResult =
validated.Properties.Traverse(MessageProperty.Create)
.SelectMany(ids => ids.AsUnique(p => p.Name));
return(ValidationResult.Combine(
transactionsResult,
propertiesResult,
(ts, ps) => new UserMessage(ts, ps)));
}
return(Spec.Of <UserMessageXml>()
.NotNull("cannot create user message from 'null' input")
.CreateModel(userMessage, CreateModel));
}
public static ValidationResult <UserMessage> Create(UserMessageXml userMessage)
{
return(Spec.Of <UserMessageXml>()
.NotNull("cannot create user message from 'null' input")
.CreateModel(userMessage, Map));
}