/// <summary>
/// Produce a <see cref="ContractCollection"/> containing all contracts found in the provided XML <paramref name="element"/>.
/// </summary>
/// <param name="element">The XML element to parse.</param>
/// <returns>A contract collection containing the contracts found in the XML element.</returns>
/// <exception cref="ContractParseException">Parsing failed.</exception>
public static ContractCollection FromXml(XElement element)
{
var bindActions = new List <Action>();
var collection = new ContractCollection {
AllowResolution = false
};
foreach (var el in element.Elements())
{
var id = el.Attribute("Id")?.Value;
if (string.IsNullOrWhiteSpace(id))
{
throw new ContractParseException("Contract XML element must contain a non-empty \"Id\" attribute.");
}
ByRefContract contract;
switch (el.Name.LocalName)
{
case "ComplexRead":
contract = new ComplexReadContract(el, collection.ResolveReadContract, bindActions);
break;
case "ComplexWrite":
contract = new ComplexWriteContract(el, collection.ResolveWriteContract, bindActions);
break;
case "UnionRead":
contract = new UnionReadContract(el, collection.ResolveReadContract, bindActions);
break;
case "UnionWrite":
contract = new UnionWriteContract(el, collection.ResolveWriteContract, bindActions);
break;
case "Enum":
contract = new EnumContract(el);
break;
default:
throw new ContractParseException($"Unsupported contract XML element with name \"{el.Name.LocalName}\".");
}
contract.Id = id;
collection._contracts.Add(contract);
}
collection.AllowResolution = true;
foreach (var bindAction in bindActions)
{
bindAction();
}
return(collection);
}
/// <summary>
/// Get or create a read contract for <paramref name="type"/>.
/// </summary>
/// <param name="type">The type to get or create a read contract for.</param>
/// <returns>The read contract corresponding to <paramref name="type"/>.</returns>
public IReadContract GetOrAddReadContract(Type type)
{
if (type == typeof(Empty))
{
return(Intern(new EmptyContract()));
}
if (PrimitiveContract.CanProcess(type))
{
return(Intern(new PrimitiveContract(type)));
}
if (EnumContract.CanProcess(type))
{
return(Intern(new EnumContract(type)));
}
if (TupleReadContract.CanProcess(type))
{
return(Intern(new TupleReadContract(type, this)));
}
if (NullableReadContract.CanProcess(type))
{
return(Intern(new NullableReadContract(type, this)));
}
if (ListReadContract.CanProcess(type))
{
return(Intern(new ListReadContract(type, this)));
}
if (DictionaryReadContract.CanProcess(type))
{
return(Intern(new DictionaryReadContract(type, this)));
}
if (UnionReadContract.CanProcess(type))
{
return(Intern(new UnionReadContract(type, this)));
}
return(Intern(new ComplexReadContract(type, this)));
}
