115 lines
2.6 KiB
Go
115 lines
2.6 KiB
Go
package config
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import (
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"encoding/json"
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"sync"
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)
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// defaultStorage implements config.Storage, providing in-memory config.
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// Indexed by section, then key.
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type defaultStorage struct {
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mu sync.RWMutex
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sections map[string]map[string]string
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}
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func newDefaultStorage() *defaultStorage {
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return &defaultStorage{
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sections: map[string]map[string]string{},
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}
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}
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// GetSectionList returns a slice of strings with names for all the sections.
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func (s *defaultStorage) GetSectionList() []string {
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s.mu.RLock()
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defer s.mu.RUnlock()
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sections := make([]string, 0, len(s.sections))
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for section := range s.sections {
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sections = append(sections, section)
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}
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return sections
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}
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// HasSection returns true if section exists in the config.
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func (s *defaultStorage) HasSection(section string) bool {
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s.mu.RLock()
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defer s.mu.RUnlock()
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_, hasSection := s.sections[section]
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return hasSection
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}
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// DeleteSection deletes the specified section.
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func (s *defaultStorage) DeleteSection(section string) {
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s.mu.Lock()
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defer s.mu.Unlock()
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delete(s.sections, section)
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}
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// GetKeyList returns the keys in this section.
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func (s *defaultStorage) GetKeyList(section string) []string {
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s.mu.RLock()
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defer s.mu.RUnlock()
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theSection := s.sections[section]
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keys := make([]string, 0, len(theSection))
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for key := range theSection {
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keys = append(keys, key)
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}
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return keys
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}
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// GetValue returns the key in section with a found flag.
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func (s *defaultStorage) GetValue(section string, key string) (value string, found bool) {
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s.mu.RLock()
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defer s.mu.RUnlock()
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theSection, hasSection := s.sections[section]
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if !hasSection {
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return "", false
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}
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value, hasValue := theSection[key]
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return value, hasValue
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}
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func (s *defaultStorage) SetValue(section string, key string, value string) {
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s.mu.Lock()
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defer s.mu.Unlock()
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theSection, hasSection := s.sections[section]
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if !hasSection {
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theSection = map[string]string{}
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s.sections[section] = theSection
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}
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theSection[key] = value
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}
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func (s *defaultStorage) DeleteKey(section string, key string) bool {
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s.mu.Lock()
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defer s.mu.Unlock()
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theSection, hasSection := s.sections[section]
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if !hasSection {
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return false
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}
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_, hasKey := theSection[key]
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if !hasKey {
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return false
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}
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delete(s.sections[section], key)
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return true
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}
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func (s *defaultStorage) Load() error {
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return nil
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}
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func (s *defaultStorage) Save() error {
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return nil
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}
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// Serialize the config into a string
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func (s *defaultStorage) Serialize() (string, error) {
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s.mu.RLock()
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defer s.mu.RUnlock()
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j, err := json.Marshal(s.sections)
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return string(j), err
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}
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// Check the interface is satisfied
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var _ Storage = newDefaultStorage()
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