private RequestOperation CreateBatchOperation()
{
var uri = new SDataUri(Uri);
if (uri.PathSegments.Length != 4)
{
throw new InvalidOperationException("Batch requests can only be made on collection end points");
}
var feed = new AtomFeed();
var batchOp = new RequestOperation(HttpMethod.Post, feed);
foreach (var op in _operations)
{
AtomEntry entry;
if (op.Resource == null)
{
if (op.Method != HttpMethod.Post)
{
throw new InvalidOperationException("A predicate must be specified for GET, PUT and DELETE batch requests");
}
var entryUri = new SDataUri(uri) {CollectionPredicate = op.Predicate};
entry = new AtomEntry {Id = new AtomId(entryUri.Uri)};
}
else
{
entry = op.Resource as AtomEntry;
if (entry == null)
{
throw new InvalidOperationException("Only atom entry resources can be submitted in batch requests");
}
}
entry.SetSDataHttpMethod(op.Method);
if (!string.IsNullOrEmpty(op.ETag))
{
entry.SetSDataHttpIfMatch(op.ETag);
}
feed.AddEntry(entry);
foreach (var file in op.Files)
{
batchOp.Files.Add(file);
}
}
return batchOp;
}
private AtomFeed GetFeed()
{
var feed = new AtomFeed
{
Title = new AtomTextConstruct("Batch"),
Id = new AtomId(new Uri(ToString())),
UpdatedOn = DateTime.Now
};
foreach (var request in Requests)
{
var entry = request.Entry ?? new AtomEntry {Id = new AtomId(new Uri(request.Url))};
entry.SetSDataHttpMethod(request.Method);
entry.SetSDataHttpIfMatch(request.ETag);
feed.AddEntry(entry);
}
return feed;
}