public void Bind(ITrackValueSource target, HarshProvisionerContextBase context)
{
if (target == null)
{
throw Logger.Fatal.ArgumentNull(nameof(target));
}
if (context == null)
{
throw Logger.Fatal.ArgumentNull(nameof(context));
}
foreach (var prop in Properties)
{
var value = prop.Accessor.GetValue(target);
if (value != null)
{
Logger.Debug(
"Property {PropertyName} already has non-null value, skipping",
prop.Name
);
continue;
}
value = GetValueFromContext(prop, context);
if (value != null)
{
Logger.Debug(
"Setting property {PropertyName} to {$Value}",
prop.Name,
value
);
prop.Accessor.SetValue(target, value, DefaultFromContextPropertyValueSource.Instance);
}
else
{
Logger.Debug(
"Got null from context for property {PropertyName}, skipping",
prop.Name
);
}
}
}
private static Object GetValueFromContext(DefaultFromContextProperty prop, HarshProvisionerContextBase context)
{
if (prop.TagType != null)
{
Logger.Debug(
"Property {PropertyName} gets default value form context by the tag type {TagType}",
prop.Name,
prop.TagType
);
return(context
.GetState(prop.TagType)
.Cast <IDefaultFromContextTag>()
.FirstOrDefault()?
.Value);
}
if (prop.ResolvedPropertyInfo != null)
{
Logger.Debug(
"Property {PropertyName} resolves objects of type {ResolvedType}",
prop.Name,
prop.ResolvedPropertyInfo.ResolvedType
);
return(ContextStateResolveBuilder.Create(
prop.ResolvedPropertyInfo.ResolvedType
));
}
Logger.Debug(
"Property {PropertyName} gets default value from context directly by its own type {PropertyType}",
prop.Name,
prop.PropertyType
);
return(context
.GetState(prop.PropertyType)
.FirstOrDefault());
}