grafana/pkg/models/plugin_setting_cache.go

package models

var pluginSettingDecryptionCache = secureJSONDecryptionCache{
	cache: make(map[int64]cachedDecryptedJSON),
}

// DecryptedValues returns cached decrypted values from secureJsonData.
func (ps *PluginSetting) DecryptedValues() map[string]string {
	pluginSettingDecryptionCache.Lock()
	defer pluginSettingDecryptionCache.Unlock()

	if item, present := pluginSettingDecryptionCache.cache[ps.Id]; present && ps.Updated.Equal(item.updated) {
		return item.json
	}

	json := ps.SecureJsonData.Decrypt()
	pluginSettingDecryptionCache.cache[ps.Id] = cachedDecryptedJSON{
		updated: ps.Updated,
		json:    json,
	}

	return json
}