protected virtual void ValidateImplementationsAfterChildrenAdded()
{
foreach (var childElement in Children)
{
if (childElement is IServiceImplementationElement serviceImplementation)
{
if (!ServiceTypeInfo.Type.IsAssignableFrom(serviceImplementation.ValueTypeInfo.Type))
{
throw new ConfigurationParseException(serviceImplementation, $"Implementation '{serviceImplementation.ValueTypeInfo.TypeCSharpFullName}' is not valid for service '{ServiceTypeInfo.TypeCSharpFullName}'.", this);
}
var disabledPluginTypeInfo = serviceImplementation.ValueTypeInfo.GetUniquePluginTypes().FirstOrDefault(x => !x.Assembly.Plugin.Enabled);
if (disabledPluginTypeInfo == null)
{
// Note, the same implementation type might appear multiple times.
// We do not want to prevent this, since each implementation might have different constructor parameters or injected properties.
_serviceImplementations.Add(serviceImplementation);
}
else if (GetPluginSetupElement() == null)
{
var warningString = new StringBuilder();
warningString.Append($"Implementation '{serviceImplementation.ValueTypeInfo.TypeCSharpFullName}' will be ignored since it");
if (serviceImplementation.ValueTypeInfo.GenericTypeParameters.Count > 0)
{
warningString.Append($" uses type '{disabledPluginTypeInfo.TypeCSharpFullName}' which");
}
warningString.Append($" is defined in assembly '{disabledPluginTypeInfo.Assembly.Alias}' that belongs to disabled plugin '{disabledPluginTypeInfo.Assembly.Plugin.Name}'.");
LogHelper.Context.Log.Warn(warningString.ToString());
}
}
}
// We might have a situation, when the only implementations are types in plugins, and all
// plugins are disabled. In this case _serviceImplementations will be an empty enumeration, and that would be OK.
if (_serviceImplementations.Count == 0)
{
LogHelper.Context.Log.WarnFormat(MessagesHelper.GetNoImplementationsForServiceMessage(ServiceTypeInfo.Type));
}
else if (_serviceImplementations.Count > 1 && RegisterIfNotRegistered)
{
throw new ConfigurationParseException(this, MessagesHelper.GetMultipleImplementationsWithRegisterIfNotRegisteredOptionMessage($"attribute '{ConfigurationFileAttributeNames.RegisterIfNotRegistered}'"));
}
}