代码拉取完成,页面将自动刷新
package cluster
import (
"encoding/json"
"fmt"
"log"
"reflect"
"strconv"
"sync"
"github.com/AsynkronIT/protoactor-go/actor"
"github.com/coreos/etcd/clientv3"
"github.com/coreos/etcd/mvcc/mvccpb"
mactor "gitee.com/nggs/micro/actor"
"gitee.com/nggs/micro/debug"
etcdv3 "gitee.com/nggs/micro/etcd/v3"
mlog "gitee.com/nggs/micro/log"
"gitee.com/nggs/micro/service"
)
const (
etcdLeaseTimeoutSec = 5
)
var C = NewCluster(nil, etcdv3.SC)
type WatchCallback func(section string, serviceName string, serviceID int, ev *clientv3.Event, err error)
type Cluster struct {
mactor.ISuper
startedWg sync.WaitGroup
stoppedWg sync.WaitGroup
etcdConfig EtcdConfig
etcdsc *etcdv3.SimpleClient
leaseID clientv3.LeaseID
keepLiveCh <-chan *clientv3.LeaseKeepAliveResponse
serviceGroups sync.Map // serviceName -> Group
globalConfigReflectType reflect.Type
globalConfig IGlobalConfig
globalConfigData []byte
watchCallbacks []WatchCallback
}
func NewCluster(logger mlog.ILogger, etcdsc *etcdv3.SimpleClient) (c *Cluster) {
c = &Cluster{
etcdsc: etcdsc,
}
if c.etcdsc == nil {
c.etcdsc = etcdv3.NewSimpleClient()
}
c.ISuper = mactor.NewSuper(logger, &c.startedWg, &c.stoppedWg).
WithOnReceiveMessageHandler(c.onReceiveMessage).
WithOnStartedHandler(c.onStarted).
WithOnStoppingHandler(c.onStopping)
return
}
type ServiceGroupInfo struct {
GlobalConfig service.IGlobalConfig
Config service.IConfig
}
type ServiceGroupInfoMap = map[string]ServiceGroupInfo
func (c *Cluster) Init(etcdConfigFilePath string, globalConfig IGlobalConfig, serviceConfigInfoMap ServiceGroupInfoMap) (err error) {
err = c.etcdConfig.Load(etcdConfigFilePath)
if err != nil {
return
}
err = c.etcdConfig.Check()
if err != nil {
return
}
err = c.etcdsc.Init(c.etcdConfig.Endpoint)
if err != nil {
return
}
c.leaseID, err = c.etcdsc.GrantLease(etcdLeaseTimeoutSec)
if err != nil {
return err
}
c.keepLiveCh, err = c.etcdsc.KeepAliveLease(c.leaseID)
if err != nil {
return err
}
if globalConfig != nil {
err = c.registerGlobalConfig(globalConfig)
if err != nil {
return
}
}
for serviceName, serviceGroupInfo := range serviceConfigInfoMap {
err = c.registerServiceGroup(serviceName, serviceGroupInfo.GlobalConfig, serviceGroupInfo.Config)
if err != nil {
return
}
}
err = c.loadAndCheckConfig()
if err != nil {
return
}
err = c.Start(nil, "cluster")
if err != nil {
return
}
c.WaitForStarted()
return
}
func (c *Cluster) registerGlobalConfig(globalConfig IGlobalConfig) (err error) {
if c.globalConfigReflectType != nil {
err = fmt.Errorf("globalConfig config already exist")
return
}
if globalConfig != nil {
c.globalConfigReflectType = reflect.TypeOf(globalConfig).Elem()
}
return
}
func (c *Cluster) registerServiceGroup(serviceName string, globalConfig service.IGlobalConfig, config service.IConfig) (err error) {
if serviceName == "" {
err = fmt.Errorf("service group serviceName can not be empty")
return
}
if _, ok := c.serviceGroups.Load(serviceName); ok {
err = fmt.Errorf("service group [%s] already exist", serviceName)
return
}
if config == nil {
err = fmt.Errorf("service group [%s] config can not be nil", serviceName)
return
}
sg := service.NewGroup(serviceName)
if globalConfig != nil {
sg.GlobalConfigReflectType = reflect.TypeOf(globalConfig).Elem()
}
sg.ConfigReflectType = reflect.TypeOf(config).Elem()
c.serviceGroups.Store(serviceName, sg)
return
}
func (c *Cluster) loadAndCheckConfig() error {
var Err error
if c.globalConfig != nil {
k := c.GenGlobalConfigKey()
v, err := c.etcdsc.Get(k)
if err != nil {
Err = fmt.Errorf("get globalConfig config fail, key=[%s], %s", k, err)
return Err
}
if len(v) > 0 {
c.globalConfig = reflect.New(c.globalConfigReflectType).Interface().(service.IGlobalConfig)
if err := json.Unmarshal(v, c.globalConfig); err != nil {
Err = fmt.Errorf("unmarshal [%s] json [%s] fail, %s", k, v, err)
return Err
}
if err := c.globalConfig.Check(); err != nil {
Err = fmt.Errorf("check globalConfig config fail, %v", err)
return Err
}
c.globalConfigData = v
}
}
c.serviceGroups.Range(func(key, value interface{}) bool {
sg := value.(*service.Group)
if sg.GlobalConfigReflectType != nil {
k := c.GenConfigKeyS(sg.Name, service.GlobalConfigServiceID)
v, err := c.etcdsc.Get(k)
if err != nil {
Err = fmt.Errorf("get config [%s] fail, %s", k, err)
return false
}
if len(v) > 0 {
sg.GlobalConfig = reflect.New(sg.GlobalConfigReflectType).Interface().(service.IGlobalConfig)
if err := json.Unmarshal(v, sg.GlobalConfig); err != nil {
Err = fmt.Errorf("unmarshal [%s] json [%s] fail, %s", k, v, err)
return false
}
if err := sg.GlobalConfig.Check(); err != nil {
Err = fmt.Errorf("check %s globalConfig config fail, %v", sg.Name, err)
return false
}
sg.GlobalConfigData = v
}
}
configPrefix := c.GenConfigKeyPrefix(sg.Name)
cfgs, err := c.etcdsc.GetStrings(configPrefix)
if err != nil {
Err = err
return false
}
var id int
for k, v := range cfgs {
_, err := fmt.Sscanf(k, configPrefix+":%d", &id)
if err != nil {
continue
}
if sg.GetConfigByID(id) != nil {
Err = fmt.Errorf("duplicate %s[%d] config", sg.Name, id)
return false
}
configData := []byte(v)
iConfig := reflect.New(sg.ConfigReflectType).Interface()
if err = json.Unmarshal(configData, iConfig); err != nil {
Err = fmt.Errorf("unmarshal [%s] json [%s] fail, %s", k, v, err)
return false
}
s := service.NewInfo(iConfig.(service.IConfig), configData, id)
if s.Config.ID() != id {
Err = fmt.Errorf("cfg.ID()[%d] != id[%d]", s.Config.ID(), id)
return false
}
if err := s.Config.Check(); err != nil {
Err = err
return false
}
// 获取实例
instance, err := c.DirectGetInstance(sg.Name, id)
if err == nil && !instance.IsEmpty() {
s.Instance = service.NewInstance()
*s.Instance = instance
payload, err := c.DirectGetPayload(sg.Name, id)
if err != nil {
// 能取到实例必然能取到负载
Err = err
return false
}
s.Payload = payload
}
sg.AddInfo(id, s)
}
c.serviceGroups.Store(sg.Name, sg)
return true
})
return Err
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
func (c Cluster) GenGlobalConfigKey() string {
return GenKey(c.EtcdConfig().Root, SectionConfig, "globalConfig")
}
func (c Cluster) GenConfigKeyPrefix(serviceName string) string {
return GenKey(c.EtcdConfig().Root, SectionConfig, serviceName)
}
func (c Cluster) GenConfigKeyS(serviceName string, strServiceID string) string {
return GenKey(c.GenConfigKeyPrefix(serviceName), strServiceID)
}
func (c Cluster) GenConfigKey(serviceName string, serviceID int) string {
return GenKey(c.GenConfigKeyPrefix(serviceName), serviceID)
}
func (c Cluster) ParseConfigKeyS(key string) (serviceName string, strServiceID string, err error) {
var section string
_, section, serviceName, strServiceID, err = ParseKeyS(key)
if err != nil {
return
}
if section != SectionConfig {
err = fmt.Errorf("ParseConfigKey fail, not config")
return
}
return
}
func (c Cluster) ParseConfigKey(key string) (serviceName string, serviceID int, err error) {
var strServiceID string
serviceName, strServiceID, err = c.ParseConfigKeyS(key)
if err != nil {
return
}
if strServiceID != "" {
serviceID, err = strconv.Atoi(strServiceID)
}
return
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
func (c Cluster) GenInstanceKeyPrefix(serviceName string) string {
return GenKey(c.EtcdConfig().Root, SectionInstance, serviceName)
}
func (c Cluster) GenInstanceKey(serviceName string, serviceID int) string {
return GenKey(c.GenInstanceKeyPrefix(serviceName), serviceID)
}
func (c Cluster) GenInstanceKeyS(serviceName string, strServiceID string) string {
return GenKey(c.GenInstanceKeyPrefix(serviceName), strServiceID)
}
func (c Cluster) ParseInstanceKey(key string) (serviceName string, serviceID int, err error) {
var strServiceID string
serviceName, strServiceID, err = c.ParseInstanceKeyS(key)
if err != nil {
return
}
serviceID, err = strconv.Atoi(strServiceID)
return
}
func (c Cluster) ParseInstanceKeyS(key string) (serviceName string, strServiceID string, err error) {
var section string
_, section, serviceName, strServiceID, err = ParseKeyS(key)
if err != nil {
return
}
if section != SectionInstance {
err = fmt.Errorf("not instance")
return
}
return
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
func (c Cluster) GenPayloadKeyPrefix(serviceName string) string {
return GenKey(c.EtcdConfig().Root, SectionPayload, serviceName)
}
func (c Cluster) GenPayloadKey(serviceName string, serviceID int) string {
return GenKey(c.GenPayloadKeyPrefix(serviceName), serviceID)
}
func (c Cluster) GenPayloadKeyS(serviceName string, strServiceID string) string {
return GenKey(c.GenPayloadKeyPrefix(serviceName), strServiceID)
}
func (c Cluster) ParsePayloadKey(key string) (serviceName string, serviceID int, err error) {
var strServiceID string
serviceName, strServiceID, err = c.ParsePayloadKeyS(key)
if err != nil {
return
}
serviceID, err = strconv.Atoi(strServiceID)
return
}
func (c Cluster) ParsePayloadKeyS(key string) (serviceName string, strServiceID string, err error) {
var section string
_, section, serviceName, strServiceID, err = ParseKeyS(key)
if err != nil {
return
}
if section != SectionPayload {
err = fmt.Errorf("not payload")
return
}
return
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
func (c *Cluster) DirectGetInstance(serviceName string, serviceID int) (instance service.Instance, err error) {
key := c.GenInstanceKey(serviceName, serviceID)
value, err := c.etcdsc.Get(key)
if err != nil {
return
}
err = json.Unmarshal(value, &instance)
if err != nil {
return
}
return
}
func (c *Cluster) DirectPutInstance(serviceName string, serviceID int, instance service.Instance) error {
key := c.GenInstanceKey(serviceName, serviceID)
value, err := json.Marshal(instance)
if err != nil {
return err
}
err = c.etcdsc.PutWithLease(key, string(value), c.LeaseID())
if err != nil {
return err
}
return nil
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
func (c *Cluster) DirectGetPayload(serviceName string, serviceID int) (payload int, err error) {
key := c.GenPayloadKey(serviceName, serviceID)
value, err := c.etcdsc.GetString(key)
if err != nil {
return
}
payload, err = strconv.Atoi(value)
if err != nil {
return
}
return
}
func (c *Cluster) DirectPutPayload(serviceName string, serviceID int, payload int) (err error) {
key := c.GenPayloadKey(serviceName, serviceID)
value := strconv.Itoa(payload)
err = c.etcdsc.PutWithLease(key, string(value), c.LeaseID())
if err != nil {
return
}
return
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
func (c *Cluster) Close() {
c.Stop()
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
func (c *Cluster) onReceiveMessage(ctx actor.Context) {
defer func() {
if r := recover(); r != nil {
c.Error("%v\n%s", r, debug.Stack())
panic(r)
}
}()
sender := ctx.Sender()
switch msg := ctx.Message().(type) {
case *C2S_GlobalConfig:
send := Get_S2C_GlobalConfig()
defer func() {
if sender != nil {
ctx.Send(sender, send)
}
}()
if len(c.globalConfigData) > 0 {
send.ConfigData = make([]byte, len(c.globalConfigData))
copy(send.ConfigData, c.globalConfigData)
}
case *C2S_ServiceGlobalConfig:
send := Get_S2C_ServiceGlobalConfig()
defer func() {
if sender != nil {
ctx.Send(sender, send)
}
}()
sg := c.getServiceGroup(msg.Name)
if sg == nil {
send.Err.Code = EC_ServiceGroupNotExist
} else {
if len(sg.GlobalConfigData) > 0 {
send.ConfigData = make([]byte, len(sg.GlobalConfigData))
copy(send.ConfigData, sg.GlobalConfigData)
}
}
case *C2S_ServiceInfo:
send := Get_S2C_ServiceInfo()
defer func() {
if sender != nil {
ctx.Send(sender, send)
}
}()
sg := c.getServiceGroup(msg.Name)
if sg == nil {
send.Err.Code = EC_ServiceGroupNotExist
} else {
info := sg.GetInfoByID(int(msg.ID))
if info == nil || info.IsEmpty() {
send.Err.Code = EC_ServiceInfoNotExist
} else {
send.Info.CopyFrom(info)
}
}
case *C2S_ServiceInstance:
send := Get_S2C_ServiceInstance()
defer func() {
if sender != nil {
ctx.Send(sender, send)
}
}()
sg := c.getServiceGroup(msg.Name)
if sg == nil {
send.Err.Code = EC_ServiceGroupNotExist
} else {
info := sg.GetInfoByID(int(msg.ID))
if info == nil || info.IsEmpty() {
send.Err.Code = EC_ServiceInfoNotExist
} else {
send.Instance.CopyFrom(info.Instance)
}
}
case *C2S_ServicePayload:
send := Get_S2C_ServicePayload()
defer func() {
if sender != nil {
ctx.Send(sender, send)
}
}()
sg := c.getServiceGroup(msg.Name)
if sg == nil {
send.Err.Code = EC_ServiceGroupNotExist
} else {
info := sg.GetInfoByID(int(msg.ID))
if info == nil || info.IsEmpty() {
send.Err.Code = EC_ServiceInfoNotExist
} else {
send.Payload = int32(info.Payload)
}
}
case *C2S_PutServiceInstance:
send := Get_S2C_PutServiceInstance()
defer func() {
if sender != nil {
ctx.Send(sender, send)
}
}()
sg := c.getServiceGroup(msg.Name)
if sg == nil {
send.Err.Code = EC_ServiceGroupNotExist
} else {
info := sg.GetInfoByID(int(msg.ID))
if info == nil || info.IsEmpty() {
send.Err.Code = EC_ServiceInfoNotExist
} else {
instance := service.NewInstance()
msg.Instance.DumpTo(instance)
key := c.GenInstanceKey(msg.Name, int(msg.ID))
value, err := json.Marshal(instance)
if err != nil {
send.Err.Code = EC_MarshalInstanceFail
send.Err.Message = err.Error()
return
}
err = c.etcdsc.PutWithLease(key, string(value), c.LeaseID())
if err != nil {
send.Err.Code = EC_Fail
send.Err.Message = err.Error()
return
}
info.Instance = instance
return
}
}
case *C2S_TryLockServicePosition:
send := Get_S2C_TryLockServicePosition()
defer func() {
if sender != nil {
ctx.Send(sender, send)
}
}()
sg := c.getServiceGroup(msg.Name)
if sg == nil {
send.Err.Code = EC_ServiceGroupNotExist
} else {
info := sg.GetInfoByID(int(msg.ID))
if info == nil || info.IsEmpty() {
send.Err.Code = EC_ServiceInfoNotExist
} else {
if info.Instance != nil {
send.Err.Code = EC_ServiceInstanceAlreadyExist
return
}
instance := service.NewInstance()
msg.Instance.DumpTo(instance)
key := c.GenInstanceKey(msg.Name, int(msg.ID))
value, err := json.Marshal(instance)
if err != nil {
send.Err.Code = EC_MarshalInstanceFail
send.Err.Message = err.Error()
return
}
err = c.etcdsc.PutWithLease(key, string(value), c.LeaseID())
if err != nil {
send.Err.Code = EC_Fail
send.Err.Message = err.Error()
return
}
// todo 目前还未做负载均衡,写死0
key = c.GenPayloadKey(msg.Name, int(msg.ID))
err = c.etcdsc.PutWithLease(key, "0", c.LeaseID())
if err != nil {
send.Err.Code = EC_Fail
send.Err.Message = err.Error()
}
info.Instance = instance
}
}
case *C2S_PutServicePayload:
send := Get_S2C_PutServicePayload()
defer func() {
if sender != nil {
ctx.Send(sender, send)
}
}()
sg := c.getServiceGroup(msg.Name)
if sg == nil {
send.Err.Code = EC_ServiceGroupNotExist
} else {
info := sg.GetInfoByID(int(msg.ID))
if info == nil || info.IsEmpty() {
send.Err.Code = EC_ServiceInfoNotExist
} else {
key := c.GenPayloadKey(msg.Name, int(msg.ID))
value := strconv.Itoa(int(msg.Payload))
err := c.etcdsc.PutWithLease(key, value, c.LeaseID())
if err != nil {
send.Err.Code = EC_PutPayloadToEtcdFail
send.Err.Message = err.Error()
return
}
info.Payload = int(msg.Payload)
}
}
case *C2S_ServiceGroupAllInfo:
send := Get_S2C_ServiceGroupAllInfo()
defer func() {
if sender != nil {
ctx.Send(sender, send)
}
}()
sg := c.getServiceGroup(msg.Name)
if sg == nil {
send.Err.Code = EC_ServiceGroupNotExist
} else {
sg.EachInfo(func(id int, i *service.Info) bool {
info := Get_ServiceInfo()
info.CopyFrom(i)
send.Infos = append(send.Infos, info)
return true
})
}
case *C2S_RoundRobinPickServiceInstance:
send := Get_S2C_RoundRobinPickServiceInstance()
defer func() {
if sender != nil {
ctx.Send(sender, send)
}
}()
sg := c.getServiceGroup(msg.Name)
if sg == nil {
send.Err.Code = EC_ServiceInfoNotExist
} else {
info := sg.RoundRobinPickInstance()
if info != nil {
send.Info.CopyFrom(info)
}
}
case *C2S_AddWatchCallback:
send := &S2C_AddWatchCallback{}
defer func() {
if sender != nil {
ctx.Send(sender, send)
}
}()
c.watchCallbacks = append(c.watchCallbacks, msg.cb)
case *clientv3.Event:
_, section, serviceName, serviceID, err := ParseKey(string(msg.Kv.Key))
defer func() {
for _, cb := range c.watchCallbacks {
if cb != nil {
cb(section, serviceName, serviceID, msg, err)
}
}
}()
if err != nil {
log.Println(err)
return
}
if serviceName == GlobalConfigName {
if c.globalConfig == nil {
err = fmt.Errorf("global config not exist")
return
}
switch section {
case SectionConfig:
switch msg.Type {
case mvccpb.PUT:
iGlobalConfig := reflect.New(c.globalConfigReflectType).Interface()
if err = json.Unmarshal(msg.Kv.Value, iGlobalConfig); err != nil {
err = fmt.Errorf("unmarshal globalConfig config json [%s] fail, %v", string(msg.Kv.Value), err)
return
}
c.globalConfig = iGlobalConfig.(service.IGlobalConfig)
case mvccpb.DELETE:
if c.globalConfig == nil {
err = fmt.Errorf("globalConfig config not exist")
return
}
c.globalConfig = nil
}
default:
err = fmt.Errorf("unsupported globalConfig config section[%s]", section)
}
return
}
sg := c.getServiceGroup(serviceName)
if sg == nil {
err = fmt.Errorf("get Info unit [%s] fail", serviceName)
return
}
switch section {
case SectionConfig:
switch msg.Type {
case mvccpb.PUT:
iConfig := reflect.New(sg.ConfigReflectType).Interface()
if err = json.Unmarshal(msg.Kv.Value, iConfig); err != nil {
err = fmt.Errorf("unmarshal [%s] json [%s] fail, %v", serviceName, string(msg.Kv.Value), err)
return
}
s := sg.GetInfoByID(serviceID)
if s == nil {
s = service.NewInfo(iConfig.(service.IConfig), msg.Kv.Value, serviceID)
if s.Config.ID() != serviceID {
err = fmt.Errorf("%s cfg.ID()[%d] != id[%d]", serviceName, s.Config.ID(), serviceID)
return
}
err = s.Config.Check()
if err != nil {
return
}
sg.AddInfo(serviceID, s)
} else {
s.Config = iConfig.(service.IConfig)
}
case mvccpb.DELETE:
sg.RemoveInfo(serviceID)
}
case SectionInstance:
s := sg.GetInfoByID(serviceID)
if s == nil {
err = fmt.Errorf("get Info %s[%d] fail", serviceName, serviceID)
return
}
switch msg.Type {
case mvccpb.PUT:
instance := service.NewInstance()
if err = json.Unmarshal(msg.Kv.Value, instance); err != nil {
err = fmt.Errorf("put %s[%d] instance fail, unmarshal [%s] fail, %v",
serviceName, serviceID, string(msg.Kv.Value), err)
return
}
// 服务启动时会put一个空的instance来占位,所以需要避免添加一个空的instance
if instance.IsEmpty() {
err = fmt.Errorf("can not put a %s[%d] nil instance", serviceName, serviceID)
return
}
s.Instance = instance
case mvccpb.DELETE:
if s.Instance == nil {
err = fmt.Errorf("already delete %s[%d] instance fail", serviceName, serviceID)
return
}
s.Instance = nil
}
case SectionPayload:
s := sg.GetInfoByID(serviceID)
if s == nil {
err = fmt.Errorf("get Info %s[%d] fail", serviceName, serviceID)
return
}
switch msg.Type {
case mvccpb.PUT:
if s.Instance == nil {
err = fmt.Errorf("put %s[%d] payload fail, instance is nil", serviceName, serviceID)
return
}
s.Payload, err = strconv.Atoi(string(msg.Kv.Value))
if err != nil {
s.Payload = service.PayloadNil
err = fmt.Errorf("put %s[%d] payload fail, %v", serviceName, serviceID, err)
return
}
case mvccpb.DELETE:
if s.Payload == service.PayloadNil {
err = fmt.Errorf("already delete %s[%d] payload", serviceName, serviceID)
return
}
s.Payload = service.PayloadNil
}
default:
err = fmt.Errorf("unsupported section[%s]", section)
}
default:
c.Error("recv unsupported msg [%#v] from [%v]", msg, sender)
}
}
func (c *Cluster) onStarted(ctx actor.Context) {
// 开启监听etcd的协程
rch := c.etcdsc.WatchWithPrefix(c.etcdConfig.Root)
var wg sync.WaitGroup
wg.Add(1)
go etcdv3.WatchLoop(rch, func(ev *clientv3.Event) {
mactor.RootContext.Send(c.PID(), ev)
}, &wg)
wg.Wait()
}
func (c *Cluster) onStopping(ctx actor.Context) {
c.etcdsc.Close()
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
func (c Cluster) EtcdConfig() EtcdConfig {
return c.etcdConfig
}
func (c Cluster) LeaseID() clientv3.LeaseID {
return c.leaseID
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
func (c Cluster) GetGlobalConfig() (IGlobalConfig, error) {
recv, err := Request_S2C_GlobalConfig(c.PID(), Get_C2S_GlobalConfig())
if err != nil {
return nil, err
}
if len(recv.ConfigData) == 0 {
return nil, nil
}
globalConfig := reflect.New(c.globalConfigReflectType).Interface().(service.IGlobalConfig)
err = json.Unmarshal(recv.ConfigData, globalConfig)
if err != nil {
return nil, err
}
return globalConfig, nil
}
func (c Cluster) getServiceGroup(serviceName string) *service.Group {
v, ok := c.serviceGroups.Load(serviceName)
if ok {
return v.(*service.Group)
}
return nil
}
func (c Cluster) GetServiceGlobalConfig(serviceName string) (service.IGlobalConfig, error) {
sg := c.getServiceGroup(serviceName)
if sg == nil {
return nil, fmt.Errorf("service group not exist")
}
send := Get_C2S_ServiceGlobalConfig()
send.Name = serviceName
recv, err := Request_S2C_ServiceGlobalConfig(c.PID(), send)
if err != nil {
return nil, err
}
if !recv.Err.IsNil() {
return nil, recv.Err
}
if len(recv.ConfigData) == 0 {
return nil, nil
}
globalConfig := reflect.New(sg.GlobalConfigReflectType).Interface().(service.IGlobalConfig)
err = json.Unmarshal(recv.ConfigData, globalConfig)
if err != nil {
return nil, err
}
return globalConfig, nil
}
func (c Cluster) GetServiceInfo(serviceName string, serviceID int) (*service.Info, error) {
sg := c.getServiceGroup(serviceName)
if sg == nil {
return nil, fmt.Errorf("service group not exist")
}
send := Get_C2S_ServiceInfo()
send.Name = serviceName
send.ID = int32(serviceID)
recv, err := Request_S2C_ServiceInfo(c.PID(), send)
if err != nil {
return nil, err
}
if !recv.Err.IsNil() {
return nil, recv.Err
}
if len(recv.Info.ConfigData) == 0 {
return nil, nil
}
config := reflect.New(sg.ConfigReflectType).Interface().(service.IConfig)
err = json.Unmarshal(recv.Info.ConfigData, config)
if err != nil {
return nil, err
}
info := service.NewInfo(config, recv.Info.ConfigData, config.ID())
recv.Info.DumpTo(info)
return info, nil
}
func (c Cluster) GetServiceInstance(serviceName string, serviceID int) (*service.Instance, error) {
sg := c.getServiceGroup(serviceName)
if sg == nil {
return nil, fmt.Errorf("service group not exist")
}
send := Get_C2S_ServiceInstance()
send.Name = serviceName
send.ID = int32(serviceID)
recv, err := Request_S2C_ServiceInstance(c.PID(), send)
if err != nil {
return nil, err
}
if !recv.Err.IsNil() {
return nil, recv.Err
}
instance := service.NewInstance()
recv.Instance.DumpTo(instance)
return instance, nil
}
func (c Cluster) PutServiceInstance(serviceName string, serviceID int, instance *service.Instance) error {
sg := c.getServiceGroup(serviceName)
if sg == nil {
return fmt.Errorf("service group not exist")
}
send := Get_C2S_PutServiceInstance()
send.Name = serviceName
send.ID = int32(serviceID)
send.Instance.CopyFrom(instance)
recv, err := Request_S2C_PutServiceInstance(c.PID(), send)
if err != nil {
return err
}
if !recv.Err.IsNil() {
return recv.Err
}
return nil
}
func (c Cluster) TryLockServicePosition(serviceName string, serviceID int, instance *service.Instance) error {
sg := c.getServiceGroup(serviceName)
if sg == nil {
return fmt.Errorf("service group not exist")
}
send := Get_C2S_TryLockServicePosition()
send.Name = serviceName
send.ID = int32(serviceID)
send.Instance.CopyFrom(instance)
recv, err := Request_S2C_TryLockServicePosition(c.PID(), send)
if err != nil {
return err
}
if !recv.Err.IsNil() {
return recv.Err
}
return nil
}
func (c *Cluster) RoundRobinPickServiceInstance(serviceName string) (info *service.Info, err error) {
sg := c.getServiceGroup(serviceName)
if sg == nil {
return nil, fmt.Errorf("service group not exist")
}
send := Get_C2S_RoundRobinPickServiceInstance()
send.Name = serviceName
recv, err := Request_S2C_RoundRobinPickServiceInstance(c.PID(), send)
if err != nil {
return nil, err
}
if !recv.Err.IsNil() {
return nil, recv.Err
}
if recv.Info == nil || len(recv.Info.ConfigData) == 0 {
return nil, nil
}
config := reflect.New(sg.ConfigReflectType).Interface().(service.IConfig)
err = json.Unmarshal(recv.Info.ConfigData, config)
if err != nil {
return nil, err
}
info = service.NewInfo(config, recv.Info.ConfigData, config.ID())
recv.Info.DumpTo(info)
return
}
func (c Cluster) GetServicePayload(serviceName string, serviceID int) (int, error) {
sg := c.getServiceGroup(serviceName)
if sg == nil {
return service.PayloadNil, fmt.Errorf("service group not exist")
}
send := Get_C2S_ServicePayload()
send.Name = serviceName
send.ID = int32(serviceID)
recv, err := Request_S2C_ServicePayload(c.PID(), send)
if err != nil {
return service.PayloadNil, err
}
if !recv.Err.IsNil() {
return service.PayloadNil, recv.Err
}
return int(recv.Payload), nil
}
func (c Cluster) PutServicePayload(serviceName string, serviceID int, payload int) error {
sg := c.getServiceGroup(serviceName)
if sg == nil {
return fmt.Errorf("service group not exist")
}
send := Get_C2S_PutServicePayload()
send.Name = serviceName
send.ID = int32(serviceID)
send.Payload = int32(payload)
recv, err := Request_S2C_PutServicePayload(c.PID(), send)
if err != nil {
return err
}
if !recv.Err.IsNil() {
return recv.Err
}
return nil
}
func (c Cluster) GetServiceGroupAllInfo(serviceName string) ([]*service.Info, error) {
sg := c.getServiceGroup(serviceName)
if sg == nil {
return nil, fmt.Errorf("service group not exist")
}
send := Get_C2S_ServiceGroupAllInfo()
send.Name = serviceName
recv, err := Request_S2C_ServiceGroupAllInfo(c.PID(), send)
if err != nil {
return nil, err
}
if !recv.Err.IsNil() {
return nil, recv.Err
}
var infos []*service.Info
for _, i := range recv.Infos {
if len(i.ConfigData) == 0 {
continue
}
config := reflect.New(sg.ConfigReflectType).Interface().(service.IConfig)
err = json.Unmarshal(i.ConfigData, config)
if err != nil {
return nil, err
}
info := service.NewInfo(config, i.ConfigData, config.ID())
i.DumpTo(info)
infos = append(infos, info)
}
return infos, nil
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
func (c *Cluster) AddWatchCallback(cb WatchCallback) (err error) {
if cb == nil {
return fmt.Errorf("callback is nil")
}
send := &C2S_AddWatchCallback{}
send.cb = cb
recv, err := Request_S2C_AddWatchCallback(c.PID(), send)
if err != nil {
return err
}
if recv.err != nil {
return recv.err
}
return
}
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