76 lines
1.4 KiB
Go
Executable File
76 lines
1.4 KiB
Go
Executable File
package storage
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import (
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"fmt"
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)
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type Map map[string]map[string][]byte
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func NewMap() *Map {
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m := make(map[string]map[string][]byte)
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n := Map(m)
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return &n
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}
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func (m *Map) String() string {
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s := ""
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for k, v := range *m {
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if s != "" {
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s += ",\n"
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}
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s += fmt.Sprintf("[%s]:[%s]", k, v)
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}
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return s
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}
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func (m *Map) Close() error {
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m = nil
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return nil
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}
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func (m *Map) List(ns []string, limits ...string) ([]string, error) {
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namespace := resolveNamespace(ns)
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limits = resolveLimits(limits)
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keys := []string{}
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n, _ := (*m)[DefaultNamespace]
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if v, ok := (*m)[namespace]; ok {
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n = v
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}
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for k := range n {
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if k >= limits[0] && k <= limits[1] {
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keys = append(keys, k)
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}
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}
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return keys, nil
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}
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func (m *Map) Get(key string, ns ...string) ([]byte, error) {
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namespace := resolveNamespace(ns)
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if _, ok := (*m)[namespace]; !ok {
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return nil, ErrNotFound
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}
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if _, ok := (*m)[namespace][key]; !ok {
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return nil, ErrNotFound
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}
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return (*m)[namespace][key], nil
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}
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func (m *Map) Set(key string, value []byte, ns ...string) error {
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namespace := resolveNamespace(ns)
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if value == nil {
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if _, ok := (*m)[namespace]; !ok {
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return nil
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} else if _, ok := (*m)[namespace][key]; ok {
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delete((*m)[namespace], key)
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}
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} else {
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if _, ok := (*m)[namespace]; !ok {
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(*m)[namespace] = make(map[string][]byte)
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}
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(*m)[namespace][key] = value
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}
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return nil
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}
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