public void Initialize(RavenTransaction tx)
{
var tree = tx.InnerTransaction.CreateTree(PrefixesOfReduceOutputDocumentsToDeleteTree);
if (tx.InnerTransaction.ReadTree(Legacy.LegacyReduceOutputsTreeName) != null)
{
Legacy.ConvertLegacyPrefixesToDeleteTree(tx);
}
_prefixesOfReduceOutputDocumentsToDelete = new ConcurrentDictionary <string, string>(StringComparer.OrdinalIgnoreCase);
using (var it = tree.Iterate(false))
{
if (it.Seek(Slices.BeforeAllKeys))
{
do
{
var toDelete = GetPrefixToDeleteAndOriginalPatternFromCurrent(it);
if (_prefixesOfReduceOutputDocumentsToDelete.TryAdd(toDelete.Prefix, toDelete.OriginalPattern) == false)
{
throw new InvalidOperationException($"Could not add '{toDelete.Prefix}' prefix to list of items to delete (pattern - '{toDelete.OriginalPattern}')");
}
} while (it.MoveNext());
}
}
}