/// <summary>
/// Gets all the ranges a node owns as a <see cref="HashRangeCollection"/>.
/// </summary>
/// <typeparam name="TNode">The node type.</typeparam>
/// <param name="ring">The hash ring to get from.</param>
/// <param name="node">The node to get ranges for.</param>
/// <returns>A <see cref="HashRangeCollection"/> of all the ranges the specified node owns.</returns>
public static HashRangeCollection GetRangesForNode <TNode>(this IConsistentHashRing <TNode> ring, TNode node)
where TNode : IComparable <TNode>
{
return(new HashRangeCollection(
ring.Partitions
.Where(p => p.Node.CompareTo(node) == 0)
.Select(p => p.Range)));
}
/// <summary>
/// Adds a node to the hash ring many times as virtual nodes.
/// </summary>
/// <typeparam name="TNode">The node type.</typeparam>
/// <param name="ring">The hash ring to add to.</param>
/// <param name="node">The node to add.</param>
/// <param name="virtualNodes">The hash points to add the node to.</param>
public static void AddVirtualNodes <TNode>(this IConsistentHashRing <TNode> ring, TNode node, IEnumerable <uint> virtualNodes)
where TNode : IComparable <TNode>
{
foreach (uint n in virtualNodes)
{
ring.AddNode(node, n);
}
}
public void AddRemoveNodes()
{
IConsistentHashRing <int> hashRing = this.CreateRing();
hashRing.AddVirtualNodes(2, new uint[] { 20, 220, 320 });
hashRing.AddVirtualNodes(1, new uint[] { 10, 210, 310 });
hashRing.AddVirtualNodes(3, new uint[] { 30, 230, 330 });
var expected = new (int, uint)[]
