public async Task <Errorable <TreePathStreamedBlob> > GetBlobByTreePath(TreeBlobPath treePath)
{
var etrm = await trrepo.GetTreeIDByPath(new TreeTreePath(treePath.RootTreeID, treePath.Path.Tree)).ConfigureAwait(continueOnCapturedContext: false);
if (etrm.HasErrors)
{
return(etrm.Errors);
}
TreeIDPathMapping trm = etrm.Value;
if (!trm.TreeID.HasValue)
{
return(new BlobNotFoundByPathError(treePath));
}
// Get the tree:
var etr = await trrepo.GetTree(trm.TreeID.Value).ConfigureAwait(continueOnCapturedContext: false);
if (etr.HasErrors)
{
return(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 == treePath.Path.Name);
if (trbl == null)
{
return(new BlobNotFoundByPathError(treePath));
}
// Check for system inconsistency:
if (!system.getPathByID(trbl.BlobID).Exists)
{
return(new BlobNotFoundByPathError(treePath));
}
return(new TreePathStreamedBlob(treePath, new StreamedBlob(blrepo, trbl.BlobID)));
}
public QueryBlobByPath(StreamedBlobRepository blrepo, TreeBlobPath treePath)
{
this._blrepo = blrepo;
this._treePath = treePath;
}
public BlobNotFoundByPathError(TreeBlobPath path) : base("A blob was not found given path '{0}'", path)
{
}
public Task <Errorable <TreePathStreamedBlob> > GetBlobByTreePath(TreeBlobPath treePath)
{
return(db.ExecuteSingleQueryAsync(new QueryBlobByPath(blrepo, treePath)));
}
