/// <summary>
/// Constructor for the <c>DocumentReader</c> object. This
/// makes use of a DOM document to extract events and provide them
/// to the core framework. All nodes will be extracted from the
/// document and queued for extraction as they are requested. This
/// will ignore any comment nodes as they should not be considered.
/// </summary>
/// <param name="document">
/// this is the document that is to be read
/// </param>
public DocumentReader(Document document) {
this.queue = new NodeExtractor(document);
this.stack = new NodeStack();
this.stack.push(document);
}
public async Task <IActionResult> ExtractNodes([FromBody] FeatureCollection josm)
{
try
{
// Start a timer.
DateTime start = DateTime.Now;
// Attempt to classify.
if (!NodeClassifier.Classify(josm, out List <string> errors))
{
return(BadRequest(new { NodeExtractorErrors = errors }));
}
// Validate the data.
if (!NodeValidator.Validate(josm, out errors, out List <string> warnings))
{
return(BadRequest(new { NodeExtractorErrors = errors, NodeExtractorWarnings = warnings }));
}
// Parse the JOSM data to nodes and edges.
if (!NodeExtractor.ParseNodeSource(josm, out List <Node> nodes, out List <NodeEdge> edges))
{
errors.Add("Parsing of JOSM failed!");
return(BadRequest(new { NodeExtractorErrors = errors }));
}
// Check for broken connections on this floor.
List <string> brokenConnections = NodeExtractor.VerifyNodeEdgesSingleFloor(nodes, edges);
if (brokenConnections.Count > 0)
{
errors.AddRange(brokenConnections);
return(BadRequest(new { NodeExtractorErrors = errors }));
}
// Check for duplicates.
foreach (Node node in nodes)
{
int duplicateCount = nodes.Count(n => n.NodeId == node.NodeId);
if (duplicateCount > 1)
{
errors.Add($"Node Extractor: The node Id {node.NodeId} is duplicated {duplicateCount} times, Ids must be unique!");
return(BadRequest(new { NodeExtractorErrors = errors }));
}
}
// Write nodes to database.
await WriteNodesToDatabase(nodes);
// Calculate weights.
edges = NodeExtractor.CalculateWeights(nodes, edges, AppSettings.EdgeCaseWeights);
// Write edges to database.
await WriteNodeEdgesToDatabase(edges);
await DissDatabaseContext.SaveChangesAsync();
// Stop the timer and return to the client a message indicating run time and warnings.
DateTime end = DateTime.Now;
return(Created("", new { processingTime = $"Node Extractor for {nodes.FirstOrDefault()?.BuildingCode.ToUpper()}{nodes.FirstOrDefault()?.Floor} finished in: {Math.Round((end - start).TotalMilliseconds, 2)}ms.", warnings }));
}
catch (Exception e)
{
return(StatusCode(500, e.Message));
}
}
