hierarchy

Documentation

Overview

Package hierarchy contains functions to set and get hierarchy string from addresses.

This package is experimental.

Index

• func Get(addr resolver.Address) []string
• func Group(addrs []resolver.Address) map[string][]resolver.Address
• func Set(addr resolver.Address, path []string) resolver.Address

Functions

func Get

func Get(addr resolver.Address) []string

Get returns the hierarchical path of addr.

func Group

func Group(addrs []resolver.Address) map[string][]resolver.Address

Group splits a slice of addresses into groups based on the first hierarchy path. The first hierarchy path will be removed from the result.

Input: [

{addr0, path: [p0, wt0]}
{addr1, path: [p0, wt1]}
{addr2, path: [p1, wt2]}
{addr3, path: [p1, wt3]}

]

Addresses will be split into p0/p1, and the p0/p1 will be removed from the path.

Output:

{
  p0: [
    {addr0, path: [wt0]},
    {addr1, path: [wt1]},
  ],
  p1: [
    {addr2, path: [wt2]},
    {addr3, path: [wt3]},
  ],
}

If hierarchical path is not set, or has no path in it, the address is dropped.

func Set

func Set(addr resolver.Address, path []string) resolver.Address

Set overrides the hierarchical path in addr with path.