public async Task <IActionResult> GetBrandImage(string spaceId)
{
ICollection <DigitalTwinsSpace> spaces = await _topologyClient.GetBrandLevelSpaces();
DigitalTwinsSpace space = spaces.FirstOrDefault(s => s.id == spaceId);
Property imagePath = space?.properties?.SingleOrDefault(p => string.Equals(p.name, "ImagePath", StringComparison.InvariantCultureIgnoreCase));
if (!Uri.TryCreate(imagePath?.value, UriKind.Absolute, out Uri uri))
{
return(NotFound());
}
else
{
byte[] imageResult = await _digitalTwinsClient.GetFromDigitalTwinsAsBytes(uri.AbsoluteUri);
return(File(imageResult, "image/png"));
}
}
private string[] GetAncestorSpaceIds(DigitalTwinsSpace childSpace, Dictionary <string, DigitalTwinsSpace> ancestorSpacesById)
{
var ancestorSpaceIds = new List <string>();
DigitalTwinsSpace nextSpace = childSpace;
while (!string.IsNullOrWhiteSpace(nextSpace.parentSpaceId))
{
ancestorSpaceIds.Add(nextSpace.parentSpaceId);
if (ancestorSpacesById.TryGetValue(nextSpace.parentSpaceId, out DigitalTwinsSpace parentSpace))
{
nextSpace = parentSpace;
}
else
{
break;
}
}
return(ancestorSpaceIds.ToArray());
}
private string GetFriendlySpaceIdentifier(DigitalTwinsSpace space, Dictionary <string, DigitalTwinsSpace> firstFourLevelsTopology)
{
string identifier = string.Empty;
if (IsTypeNeededForFriendlyIdentifier(space.type))
{
identifier = space.friendlyName;
}
if (!string.IsNullOrWhiteSpace(space.parentSpaceId) &&
firstFourLevelsTopology.TryGetValue(space.parentSpaceId, out DigitalTwinsSpace parentSpace))
{
string parentIdentifier = GetFriendlySpaceIdentifier(parentSpace, firstFourLevelsTopology);
if (!string.IsNullOrWhiteSpace(parentIdentifier))
{
identifier = string.IsNullOrWhiteSpace(identifier) ? parentIdentifier : $"{parentIdentifier} -> {identifier}";
}
}
return(identifier);
}