gistfile1.go

package main

import (
	"log"
	"fmt"
	"path/filepath"
)

type Node struct {
	Key   string
	Value string
}

type Nodes []*Node

func (ns Nodes) Len() int {
	return len(ns)
}

func (ns Nodes) Less(i, j int) bool {
	return ns[i].Key < ns[j].Key
}

func (ns Nodes) Swap(i, j int) {
	ns[i], ns[j] = ns[j], ns[i]
}

type Store map[string]Node

func (s Store) Get(key string) (Node, bool) {
	n, ok := s[key]
	return n, ok
}

func (s Store) GetAll(pattern string) (Nodes, error) {
	ns := make(Nodes, 0)
	for _, n := range s {
		m, err := filepath.Match(pattern, n.Key)
		if err != nil {
			return nil, err
		}
		if m {
			ns = append(ns, &n)
		}		
	}
	return ns, nil
}

func (s Store) Set(key string, value string) {
	s[key] = Node{key, value}
}

func main() {
	s := Store{}
	s.Set("/myapp/database/username", "admin")
	s.Set("/myapp/database/password", "123456789")
	n, ok := s.Get("/myapp/database/password")
	if ok {
		fmt.Println(n.Value)
	}
	nodes, err := s.GetAll("/myapp/*/*")
	if err != nil {
		log.Fatal(err.Error())
	}
	for _, n := range nodes {
		fmt.Println(n.Key)
		fmt.Println(n.Value)
	}
}