public async Task RunAsync(DataModel model)
{
// Have the writer do its thing, making sure we have up-to-date samples.
var content = await Writer.RunAsync();
// Go through all the data points, and process 'em.
foreach (var dataPoint in content.DataPoints)
{
// Pick apart the path
var bits = dataPoint.Path.Split('/');
if (bits.Length < 2)
{
throw new LoaderException($"Sample {dataPoint.Path} has too few segments!");
}
// Work our way down the path. To start, find the top-most entity.
var entity = model.FindEntity(bits.First());
if (entity == null)
{
logger.LogWarning("Could not find top-level entity '{Name}' for sample path {Path}.", bits.First(), dataPoint.Path);
continue;
}
var sample = new DataAttributeSample
{
SampleId = SampleId,
Path = dataPoint.Path,
Top5 = dataPoint.Samples.Select(x => x.Value).Take(5)
};
ProcessEntity(model, entity, sample, bits.Skip(1));
}
}
private void ProcessEntity(DataModel model, DataEntity entity, DataAttributeSample sample, IEnumerable <string> remainingPath)
{
var attributeName = remainingPath.First();
if (attributeName.StartsWith("@"))
{
attributeName = attributeName.Substring(1);
}
// If we're at the last part of the path, add the sample...
if (remainingPath.Count() == 1)
{
var attribute = entity.FindAttribute(attributeName);
if (attribute == null)
{
entity.OutcastSamples.Add(sample);
logger.LogWarning("{Model}: Could not find attribute '{Attribute}' in {Entity} for sample path {Path}.",
model.Id, attributeName, entity.Name, sample.Path);
}
else
{
attribute.Samples.Add(sample);
}
}
else
{
// Not at the last part, find the attribute within this entity and recurse down...
var childAttribute = entity.FindAttribute(attributeName);
if (childAttribute == null)
{
entity.OutcastSamples.Add(sample);
logger.LogWarning("{Model}: Could not find intermediate attribute '{Attribute}' in {Entity} for sample path {Path}.",
model.Id, entity.Name, attributeName, sample.Path);
return;
}
// The childAttribute should be a ref type. If not, we're in trouble.
if (childAttribute.DataType.Type != PrimitiveType.Ref)
{
entity.OutcastSamples.Add(sample);
logger.LogWarning("{Model}: Expected attribute {Entity}.{Attribute} to be type 'ref' for sample path {Path}.",
model.Id, entity.Name, attributeName, sample.Path);
return;
}
var childEntity = model.FindEntity(childAttribute.DataType.RefName);
if (childEntity == null)
{
entity.OutcastSamples.Add(sample);
logger.LogWarning("{Model}: Could not find child ref '{Name}' for {Entity}.{Attribute} when searching sample path {Path}.",
model.Id, childAttribute.DataType.RefName, entity.Name, attributeName, sample.Path);
return;
}
ProcessEntity(model, childEntity, sample, remainingPath.Skip(1));
}
}
