/
service.go
167 lines (144 loc) · 4.43 KB
/
service.go
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package pushservice
import (
"encoding/json"
"fmt"
"github.com/zenchainprotocol/zenchain-node/x/stream/pushservice/conn"
"github.com/zenchainprotocol/zenchain-node/x/backend"
"github.com/tendermint/tendermint/libs/log"
"github.com/zenchainprotocol/zenchain-node/x/stream/pushservice/types"
"github.com/zenchainprotocol/zenchain-node/x/token"
)
var _ types.Writer = (*PushService)(nil)
// PushService is to push data to redis_push_service_channel
type PushService struct {
client *conn.Client
log log.Logger
}
func NewPushService(redisURL, redisPassword string, db int, log log.Logger) (srv *PushService, err error) {
c, err := conn.NewClient(redisURL, redisPassword, db, log)
if err != nil {
log.Error("connect pushservice",
"err", err.Error(),
)
return nil, err
}
log = log.With("module", "pushservice")
return &PushService{client: c, log: log}, nil
}
// WriteSync push data to redis-push-channel per block
func (p PushService) WriteSync(b *types.RedisBlock) (map[string]int, error) {
result := make(map[string]int)
// orders
for _, val := range b.OrdersMap {
result["orders"] += len(val)
}
for k, v := range b.OrdersMap {
if err := p.setOrders(k, v); err != nil {
return result, fmt.Errorf("setOrders failed, %s", err.Error())
}
}
// accounts
result["accs"] = len(b.AccountsMap)
for k, v := range b.AccountsMap {
if err := p.setAccount(k, v); err != nil {
return result, fmt.Errorf("setAccount failed, %s", err.Error())
}
}
// match results
result["matches"] += len(b.MatchesMap)
for k, v := range b.MatchesMap {
if err := p.setMatches(k, v); err != nil {
return result, fmt.Errorf("setMatches failed, %s", err.Error())
}
}
// product depth
for _, val := range b.DepthBooksMap {
result["depth"] += len(val.Asks) + len(val.Bids)
}
for k, v := range b.DepthBooksMap {
if err := p.setDepthSnapshot(k, v); err != nil {
return result, fmt.Errorf("setDepthSnapshot failed, %s", err.Error())
}
}
// coins, products
result["instruments"] = len(b.Instruments)
if len(b.Instruments) != 0 {
instrs := make([]string, 0, len(b.Instruments))
for k := range b.Instruments {
instrs = append(instrs, k)
}
if err := p.setInstruments(instrs); err != nil {
return result, fmt.Errorf("setInstruments failed, %s", err.Error())
}
}
b.Clear()
return result, nil
}
// Close connection to remote redis server
func (p PushService) Close() error {
return p.client.Close()
}
// get redis client
func (p *PushService) GetConnCli() *conn.Client {
return p.client
}
// setAccount, push account to private channel
func (p PushService) setAccount(address string, info token.CoinInfo) error {
value, err := json.Marshal(info)
if err != nil {
return err
}
key := address
p.log.Debug("setAccount", "key", key, "value", string(value))
return p.client.PrivatePub(key, string(value))
}
// setOrders push orders to private channel
func (p PushService) setOrders(address string, orders []backend.Order) error {
value, err := json.Marshal(orders)
if err != nil {
return err
}
key := address
p.log.Debug("setOrders", "key", key, "value", string(value))
return p.client.PrivatePub(key, string(value)[1:len(string(value))-1])
}
// setMatches push matches to public channel
func (p PushService) setMatches(product string, matches backend.MatchResult) error {
value, err := json.Marshal(matches)
if err != nil {
return err
}
key1 := product
key2 := product
p.log.Debug("setMatches_pub", "key", key1, "value", string(value))
p.log.Debug("setMatches_set", "key", key2, "value", string(value))
if err := p.client.Set(key2, string(value)); err != nil {
return err
}
return p.client.PublicPub(key1, string(value))
}
// setDepthSnapshot push depth to public channel
func (p PushService) setDepthSnapshot(product string, depth types.BookRes) error {
value, err := json.Marshal(depth)
if err != nil {
return err
}
key1 := product
key2 := product
p.log.Debug("setDepthSnapshot_pub", "key", key1, "value", string(value))
p.log.Debug("setDepthSnapshot_set", "key", key2, "value", string(value))
if err := p.client.Set(key2, string(value)); err != nil {
return err
}
return p.client.DepthPub(key1, string(value))
}
// setInstruments push instruments to
func (p PushService) setInstruments(instruments []string) error {
value, err := json.Marshal(instruments)
if err != nil {
return err
}
key := "instruments"
p.log.Debug("setInstruments", "key", key, "value", string(value))
return p.client.Set(key, string(value))
}