public async Task <Errorable <TreePathStreamedBlob>[]> GetBlobsByTreePaths(params TreeBlobPath[] treePaths)
{
#if false
var blobs =
from tp in treePaths
let tr = await trrepo.GetTreeIDByPath(new TreeTreePath(tp.RootTreeID, tp.Path.Tree))
// await operator cannot currently be used in query expressions.
#else
// Estimated size:
var blobs = new Errorable <TreePathStreamedBlob> [treePaths.Length];
for (int i = 0; i < treePaths.Length; ++i)
{
var tp = treePaths[i];
var etrm = await trrepo.GetTreeIDByPath(new TreeTreePath(tp.RootTreeID, tp.Path.Tree)).ConfigureAwait(continueOnCapturedContext: false);
if (etrm.HasErrors)
{
blobs[i] = etrm.Errors;
}
var trm = etrm.Value;
if (!trm.TreeID.HasValue)
{
blobs[i] = null;
continue;
}
// Get the tree:
var etr = await trrepo.GetTree(trm.TreeID.Value).ConfigureAwait(continueOnCapturedContext: false);
if (etr.HasErrors)
{
blobs[i] = etr.Errors;
}
TreeNode tr = etr.Value;
// Get the blob out of this tree:
// TODO: standardize name comparison semantics:
var trbl = tr.Blobs.SingleOrDefault(x => x.Name == tp.Path.Name);
if (trbl == null)
{
blobs[i] = null;
continue;
}
// Finally return the streamed blob:
// TODO: unknown length of blob; is it a problem?
blobs[i] = new TreePathStreamedBlob(tp, new StreamedBlob(blrepo, trbl.BlobID));
}
return(blobs);
#endif
}
