/// <summary>
/// Gets the ThriftStructMetadata for the specified struct class. The struct class must be annotated with @ThriftStruct or @ThriftUnion.
/// </summary>
/// <param name="structType"></param>
/// <returns></returns>
public ThriftStructMetadata GetThriftStructMetadata(Type structType)
{
return(_structs.GetOrAdd(structType, t =>
{
ThriftStructAttribute att = t.GetTypeInfo().GetCustomAttribute <ThriftStructAttribute>();
if (att != null)
{
return ExtractThriftStructMetadata(t);
}
else
{
throw new ArgumentException($"{structType.FullName} has no ThriftStructAttribute.");
}
}));
}
private IDictionary <short, ThriftType> BuildExceptions(ThriftCatalog catalog, MethodInfo method)
{
var exceptions = ImmutableDictionary.CreateBuilder <short, ThriftType>();
HashSet <Type> exceptionTypes = new HashSet <Type>();
var exceptionAttributes = method.GetCustomAttributes <ThriftExceptionAttribute>(true);
foreach (var thriftException in exceptionAttributes)
{
if (!exceptionTypes.Add(thriftException.ExceptionType))
{
throw new ThriftyException($"ThriftExceptionAttribute on method {method.DeclaringType}.{method.Name} contains more than one value for {thriftException.ExceptionType} .");
}
if (exceptions.ContainsKey(thriftException.Id))
{
throw new ThriftyException($"ThriftExceptionAttribute on method {method.DeclaringType}.{method.Name} has duplicate id: {thriftException.Id} .");
}
exceptions.Add(thriftException.Id, catalog.GetThriftType(thriftException.ExceptionType));
}
foreach (var exceptionType in exceptionAttributes.Select(a => a.ExceptionType))
{
if (exceptionType.GetTypeInfo().IsAssignableFrom(typeof(TException)))
{
// the built-in exception types don't need special treatment
continue;
}
ThriftStructAttribute attribute = exceptionType.GetTypeInfo().GetCustomAttribute <ThriftStructAttribute>();
if (attribute == null)
{
throw new ThriftyException($"ThriftExceptionAttribute on method {method.DeclaringType}.{method.Name} with {exceptionType.FullName} need {nameof(ThriftStructAttribute)} .");
}
}
return(exceptions.ToImmutableDictionary());
}