> + * Build a TreeHash based on a map of hashed chunks.
> + *
> + * @return The calculated TreeHash.
> + */
> + public static HashCode buildTreeHashFromMap(Map<Integer, HashCode> map) {
> + //Sort the Map with the hash parts.
> + SortedMap<Integer, HashCode> sortedMap =
> ImmutableSortedMap.copyOf(map);
> +
> + //Convert the strings and add them to our queue.
> + Queue<HashCode> q = Lists.newLinkedList();
> + Iterator<Map.Entry<Integer, HashCode>> i =
> sortedMap.entrySet().iterator();
> + while (i.hasNext())
> + q.offer(i.next().getValue());
> +
> + //Rehash the queue until its size is 1.
> + while (q.size() > 1)
Duplicated below; factor into a helper method?
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