// Writes IResponse into connection.
func (s *SessionHandler) writeResponse(resp iface.IResponse) error {
unsafeData := common.UnsafeStringToBytes(resp.GetResponse())
if _, err := s.conn.Write(unsafeData); err != nil {
return err
}
if _, err := s.conn.Write(EOM); err != nil {
return err
}
return nil
}
// FlushCache flushes all cache into database.
func (ds *DataStorage) FlushCache() {
if ds.closed {
return
}
ds.cacheLock.Lock()
tmpItemCache := ds.itemCache
ds.tmpPayloadCache = ds.payloadCache
ds.itemCache = make(map[string][]byte)
ds.payloadCache = make(map[string]string)
ds.cacheLock.Unlock()
wb := levigo.NewWriteBatch()
for k, v := range tmpItemCache {
key := common.UnsafeStringToBytes(k)
if v == nil {
wb.Delete(key)
} else {
wb.Put(key, v)
}
}
for k, v := range ds.tmpPayloadCache {
key := common.UnsafeStringToBytes(k)
if v == "" {
wb.Delete(key)
} else {
wb.Put(key, common.UnsafeStringToBytes(v))
}
}
ds.db.Write(defaultWriteOptions, wb)
ds.cacheLock.Lock()
ds.tmpPayloadCache = make(map[string]string)
ds.cacheLock.Unlock()
}
func makeSettingsKey(serviceId string) []byte {
return common.UnsafeStringToBytes(serviceConfigPrefix + serviceId)
}
// SaveServiceMeta stores service metadata into database.
func (ds *DataStorage) SaveServiceMeta(serviceDescription *common.ServiceDescription) {
key := serviceDescriptionPrefix + serviceDescription.GetName()
data, _ := serviceDescription.Marshal()
ds.db.Put(defaultWriteOptions, common.UnsafeStringToBytes(key), data)
}
// IterServiceItems returns new over all service item metadata.
// Service name used as a prefix to file all service items.
func (ds *DataStorage) IterServiceItems(serviceId string) *ItemIterator {
iter := ds.db.NewIterator(defaultReadOptions)
prefix := common.UnsafeStringToBytes(makeItemID(serviceId, ""))
return makeItemIterator(iter, prefix)
}