/// <summary>
/// Gets a registration from an xml element
/// </summary>
/// <param name="registrationElement"></param>
/// <returns></returns>
private static Registration CreateRegistration(XmlElement registrationElement)
{
registrationElement.ShouldBeNamed(RegistrationElementName);
// initialize injection constructor to null
InjectionConstructor injectionConstructor = null;
// check for an injection constructor element
var injectionConstructorElement =
registrationElement.ChildNodes.OfType<XmlElement>()
.FirstOrDefault(x => x.Name == InjectionConstructorElementName);
if (injectionConstructorElement != null)
injectionConstructor = GetInjectionConstructor(injectionConstructorElement);
return new Registration(registrationElement.GetTypeFromAttribute(RegistrationTypeAttributeName),
registrationElement.GetTypeFromAttribute(RegistrationMapToAttributeName),
GetLifetimeManager(registrationElement, RegistrationLifetimeAttributeName),
registrationElement.GetAttributeValue(RegistrationNameAttributeName, false),
injectionConstructor);
}
/// <summary>
/// Gets a parameter for a constructor from a parameter XmlElement
/// </summary>
/// <param name="parameterElement"></param>
/// <returns></returns>
private static object GetConstructorParameter(XmlElement parameterElement)
{
// ensure element is parameter element
parameterElement.ShouldBeNamed(ParameterElementName);
// get flag indicating whether or not to resolve the value of the parameter
var resolve = parameterElement.GetAttributeValue(ResolveAttributeName).ConvertTo<bool>();
// get the type of the parameter
var type = parameterElement.GetTypeFromAttribute(TypeAttributeName);
// get value to be passed in - if resolving, this is not required
var value = parameterElement.GetAttributeValue(ValueAttributeName, !resolve);
// get value for parameter
return resolve
? new ResolvedParameter(type, string.IsNullOrWhiteSpace(value) ? value : null)
: value.ConvertTo(type);
}
/// <summary>
/// Creates a custom section
/// </summary>
/// <param name="xmlElement"></param>
/// <returns></returns>
private static IAssemblyConfigurationSection CreateCustomSection(XmlElement xmlElement)
{
try
{
// get the section type from its type attribute
var sectionType = xmlElement.GetTypeFromAttribute(CustomSectionTypeAttributeName);
// create an instance of the section's type
var customSection = (IAssemblyConfigurationSection)Activator.CreateInstance(sectionType);
// load the section from xml
customSection.Load(xmlElement);
return customSection;
}
catch (Exception ex)
{
Debug.WriteLine(ex.ToString());
throw;
}
}