public ModelsRepositoryMetadata FetchMetadata(Uri repositoryUri, CancellationToken cancellationToken = default)
{
using DiagnosticScope scope = _clientDiagnostics.CreateScope($"{nameof(FileModelFetcher)}.{nameof(FetchMetadata)}");
scope.Start();
string metadataPath = DtmiConventions.GetMetadataUri(repositoryUri).LocalPath;
try
{
cancellationToken.ThrowIfCancellationRequested();
if (File.Exists(metadataPath))
{
string content = File.ReadAllText(metadataPath, Encoding.UTF8);
return(JsonSerializer.Deserialize <ModelsRepositoryMetadata>(content));
}
}
catch (OperationCanceledException ex)
{
scope.Failed(ex);
throw;
}
catch (Exception ex)
{
// Exceptions thrown from fetching Repository Metadata should not be terminal.
scope.Failed(ex);
}
ModelsRepositoryEventSource.Instance.FailureProcessingRepositoryMetadata(metadataPath);
return(null);
}
public static void RemoveMetadataFromLocalRepository()
{
string metadataFilePath = DtmiConventions.GetMetadataUri(new Uri(TestLocalModelsRepository)).LocalPath;
if (File.Exists(metadataFilePath))
{
File.Delete(metadataFilePath);
}
}
public static void AddMetadataToLocalRepository(bool supportsExpanded = true)
{
var metadata = new ModelsRepositoryMetadata();
metadata.Features.Expanded = supportsExpanded;
string metadataFilePath = DtmiConventions.GetMetadataUri(new Uri(TestLocalModelsRepository)).LocalPath;
var options = new JsonSerializerOptions {
WriteIndented = true
};
string metadataJsonString = JsonSerializer.Serialize(metadata, options);
File.WriteAllText(metadataFilePath, metadataJsonString);
}
public void GetMetadataUri(string repository, string expectedUri)
{
Uri metadataUri = DtmiConventions.GetMetadataUri(new Uri(repository));
metadataUri.AbsoluteUri.Should().Be(expectedUri);
}