private async Task <IEnumerable <ImportingJobDescriptor> > HarvestManifestAsync(IFeatureInfo feature, string path)
{
var manifestPath = Path.Combine("Areas", feature.Id, path);
var manifestFile = _environment.ContentRootFileProvider.GetFileInfo(manifestPath);
if (manifestFile == null || manifestFile is NotFoundFileInfo)
{
return(new ImportingJobDescriptor[] { });
}
using (var stream = manifestFile.CreateReadStream()) {
var manifest = await _xaml.LoadAsync <SeedManifest>(stream);
var dataSources = manifest.DataSources;
var jobs = new List <ImportingJobDescriptor>();
foreach (var ds in dataSources)
{
foreach (var importEntity in ds.Mappings)
{
var job = new ImportingJobDescriptor(
true, feature, ds, importEntity);
jobs.Add(job);
}
}
return(jobs);
}
}
public async Task ImportAsync(ImportingJobDescriptor descriptor)
{
ShellScope.AddDeferredTask(async defferedTaskContext => {
using (var tx = _transactionManager.BeginTransaction()) {
var importTask = await this.CreateTaskAsync(descriptor);
var context = new ImportingTaskContext(defferedTaskContext.ServiceProvider, _environment.ContentRootFileProvider);
await this.DoImportAsync(importTask, context);
await tx.CommitAsync();
}
});
await Task.CompletedTask;
}
