public static void ApplyCompositionInfo(CompositionInfo info, XmlProcessingContext xmlProcessingContext)
{
if (info.CommandInfos == null)
{
return;
}
foreach (var commandInfo in info.CommandInfos)
{
if (!Runners.ContainsKey(commandInfo.GetType()))
{
throw new CompositionException("Provided type is not supported for applying to a component context: " +
commandInfo.GetType().FullName);
}
var runner = Runners[commandInfo.GetType()];
try
{
xmlProcessingContext.EnterRunningLocation("Processing '" + commandInfo + "'");
runner(commandInfo, xmlProcessingContext);
xmlProcessingContext.LeaveRunningLocation();
}
catch (Exception e)
{
// Ignore the exception if the "IgnoreOnError" property is set.
// If not, just report the exception (in case it happened in an
// include command) and let it bubble up.
if (!commandInfo.IgnoreOnError)
{
// TODO: Fix logging / tracing mechanism
xmlProcessingContext.ReportError("Exception: " + e.Message);
throw;
}
// If exception has occured, then the "LeaveRunningLocation"
// method is not executed in the "try" block, so call it here.
xmlProcessingContext.LeaveRunningLocation();
}
}
}
private static void RunRegisterComponent(CompositionCommandInfo info, XmlProcessingContext xmlProcessingContext)
{
if (!(info is RegisterComponentInfo registerComponentInfo))
{
throw new ArgumentException("Invalid runner input type: error in static setup.");
}
// Extract and load contract type
Type contractType = null;
if (registerComponentInfo.ContractType != null)
{
contractType = SimpleTypeParserUtil.ParseType(registerComponentInfo.ContractType, xmlProcessingContext);
if (contractType == null)
{
xmlProcessingContext.ReportError(
$"Type '{registerComponentInfo.ContractType}' could not be loaded.");
return;
}
}
// Get contract name
var contractName = registerComponentInfo.ContractName;
// Build ComponentConfiguration
var componentType = SimpleTypeParserUtil.ParseType(registerComponentInfo.Type, xmlProcessingContext);
if (componentType == null)
{
xmlProcessingContext.ReportError($"Type '{registerComponentInfo.Type}' could not be loaded.");
return;
}
IComponentFactory componentFactory;
List <InitializationPointSpecification> initializationPoints;
if ((componentType.IsGenericType) && (componentType.ContainsGenericParameters))
{
var genericLocalComponentFactory = new GenericLocalComponentFactory(componentType);
componentFactory = genericLocalComponentFactory;
initializationPoints = genericLocalComponentFactory.InitializationPoints;
}
else
{
var localComponentFactory = new LocalComponentFactory(componentType);
componentFactory = localComponentFactory;
initializationPoints = localComponentFactory.InitializationPoints;
}
// Add each configured plug, into the InitializationPoints
// in the component configuration.
foreach (var plugInfo in registerComponentInfo.Plugs)
{
xmlProcessingContext.EnterRunningLocation($"Plug '{plugInfo.Name}'");
var plugRefType = SimpleTypeParserUtil.ParseType(plugInfo.RefType, xmlProcessingContext);
if (plugRefType == null)
{
xmlProcessingContext.ReportError($"Type '{plugInfo.RefType}' could not be loaded.");
xmlProcessingContext.LeaveRunningLocation();
return;
}
var plugRefName = plugInfo.RefName;
initializationPoints.Add(new InitializationPointSpecification(
plugInfo.Name,
MemberTypes.All,
true,
new ComponentQuery(plugRefType, plugRefName)));
// TODO: Add support for optional plugs in Composition XML
xmlProcessingContext.LeaveRunningLocation();
}
// Add each configuration point, into the InitializationPoints
// in the component configuration.
foreach (var configurationPointInfo in registerComponentInfo.ConfigurationPoints)
{
xmlProcessingContext.EnterRunningLocation($"ConfigurationPoint '{configurationPointInfo.Name}'");
var value = CreateLazyXmlValue(configurationPointInfo.XElements,
configurationPointInfo.XAttributes,
xmlProcessingContext);
initializationPoints.Add(new InitializationPointSpecification(
configurationPointInfo.Name,
MemberTypes.All,
true,
new LazyValueQuery(value)));
xmlProcessingContext.LeaveRunningLocation();
}
// Register the component into the component context.
if (contractType == null)
{
xmlProcessingContext.ComponentContext.Register(contractName, componentFactory);
}
else
{
xmlProcessingContext.ComponentContext.Register(contractType, contractName, componentFactory);
}
}