public DeclarationSectionReader(IXmlLoadLogger logger, FeatureSwitcher featureSwitcher, IConditionParser conditionParser)
{
this.logger = logger;
this.featureSwitcher = featureSwitcher;
this.conditionParser = conditionParser;
}
public bool Load(Stream stream, IXmlLoadLogger logger, out ComponentDescription description)
{
description = new ComponentDescription();
if (stream is FileStream fs)
{
description.Source = new ComponentDescriptionSource(fs.Name);
}
var errorCheckingLogger = new ErrorCheckingLogger(logger);
var sectionRegistry = new SectionRegistry();
try
{
var root = XElement.Load(stream, LoadOptions.SetLineInfo);
ReadHeader(root, description);
var featureSwitcher = new FeatureSwitcher();
// Read declaration
var declaration = root.Element(ComponentNamespace + "declaration");
if (declaration == null)
{
logger.LogError(root, "Missing required element: 'declaration'");
return(false);
}
var declarationReader = container.Value.ResolveNamed <IXmlSectionReader>(declaration.Name.NamespaceName + ":" + declaration.Name.LocalName,
new TypedParameter(typeof(IXmlLoadLogger), errorCheckingLogger),
new TypedParameter(typeof(FeatureSwitcher), featureSwitcher));
declarationReader.ReadSection(declaration, description);
var descriptionInstance = description;
var scope = container.Value.BeginLifetimeScope(configure =>
{
configure.RegisterInstance(errorCheckingLogger).As <IXmlLoadLogger>();
configure.RegisterInstance(sectionRegistry).As <ISectionRegistry>();
configure.RegisterInstance(descriptionInstance);
configure.RegisterInstance(featureSwitcher).As <IFeatureSwitcher>();
foreach (var feature in features)
{
if (featureSwitcher.IsFeatureEnabled(feature.Key, out var featureSourceElement))
{
logger.Log(LogLevel.Information, featureSourceElement, $"Feature enabled: {feature.Key}");
feature.Value(configure);
}
}
});
try
{
// Read remaining elements
foreach (var element in root.Elements().Except(new[] { declaration }))
{
var sectionReader = scope.ResolveOptionalNamed <IXmlSectionReader>(element.Name.NamespaceName + ":" + element.Name.LocalName);
sectionReader?.ReadSection(element, description);
}
return(!errorCheckingLogger.HasErrors);
}
finally
{
scope.Dispose();
}
}
catch (Exception ex)
{
logger.Log(LogLevel.Error, new FileRange(1, 1, 1, 2), ex.Message, ex);
return(false);
}
}