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service_config.go
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service_config.go
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package config
import (
"container/list"
"fmt"
"net/url"
"os"
"strconv"
"strings"
"sync"
"time"
)
import (
"github.com/creasty/defaults"
"github.com/dubbogo/gost/log/logger"
gxnet "github.com/dubbogo/gost/net"
perrors "github.com/pkg/errors"
"go.uber.org/atomic"
)
import (
"dubbo.apache.org/dubbo-go/v3/common"
"dubbo.apache.org/dubbo-go/v3/common/constant"
"dubbo.apache.org/dubbo-go/v3/common/extension"
"dubbo.apache.org/dubbo-go/v3/protocol"
"dubbo.apache.org/dubbo-go/v3/protocol/protocolwrapper"
)
// ServiceConfig is the configuration of the service provider
type ServiceConfig struct {
id string
Filter string `yaml:"filter" json:"filter,omitempty" property:"filter"`
ProtocolIDs []string `yaml:"protocol-ids" json:"protocol-ids,omitempty" property:"protocol-ids"` // multi protocolIDs support, split by ','
Interface string `yaml:"interface" json:"interface,omitempty" property:"interface"`
RegistryIDs []string `yaml:"registry-ids" json:"registry-ids,omitempty" property:"registry-ids"`
Cluster string `default:"failover" yaml:"cluster" json:"cluster,omitempty" property:"cluster"`
Loadbalance string `default:"random" yaml:"loadbalance" json:"loadbalance,omitempty" property:"loadbalance"`
Group string `yaml:"group" json:"group,omitempty" property:"group"`
Version string `yaml:"version" json:"version,omitempty" property:"version" `
Methods []*MethodConfig `yaml:"methods" json:"methods,omitempty" property:"methods"`
Warmup string `yaml:"warmup" json:"warmup,omitempty" property:"warmup"`
Retries string `yaml:"retries" json:"retries,omitempty" property:"retries"`
Serialization string `yaml:"serialization" json:"serialization" property:"serialization"`
Params map[string]string `yaml:"params" json:"params,omitempty" property:"params"`
Token string `yaml:"token" json:"token,omitempty" property:"token"`
AccessLog string `yaml:"accesslog" json:"accesslog,omitempty" property:"accesslog"`
TpsLimiter string `yaml:"tps.limiter" json:"tps.limiter,omitempty" property:"tps.limiter"`
TpsLimitInterval string `yaml:"tps.limit.interval" json:"tps.limit.interval,omitempty" property:"tps.limit.interval"`
TpsLimitRate string `yaml:"tps.limit.rate" json:"tps.limit.rate,omitempty" property:"tps.limit.rate"`
TpsLimitStrategy string `yaml:"tps.limit.strategy" json:"tps.limit.strategy,omitempty" property:"tps.limit.strategy"`
TpsLimitRejectedHandler string `yaml:"tps.limit.rejected.handler" json:"tps.limit.rejected.handler,omitempty" property:"tps.limit.rejected.handler"`
ExecuteLimit string `yaml:"execute.limit" json:"execute.limit,omitempty" property:"execute.limit"`
ExecuteLimitRejectedHandler string `yaml:"execute.limit.rejected.handler" json:"execute.limit.rejected.handler,omitempty" property:"execute.limit.rejected.handler"`
Auth string `yaml:"auth" json:"auth,omitempty" property:"auth"`
NotRegister bool `yaml:"not_register" json:"not_register,omitempty" property:"not_register"`
ParamSign string `yaml:"param.sign" json:"param.sign,omitempty" property:"param.sign"`
Tag string `yaml:"tag" json:"tag,omitempty" property:"tag"`
GrpcMaxMessageSize int `default:"4" yaml:"max_message_size" json:"max_message_size,omitempty"`
TracingKey string `yaml:"tracing-key" json:"tracing-key,omitempty" propertiy:"tracing-key"`
RCProtocolsMap map[string]*ProtocolConfig
RCRegistriesMap map[string]*RegistryConfig
ProxyFactoryKey string
adaptiveService bool
unexported *atomic.Bool
exported *atomic.Bool
export bool // a flag to control whether the current service should export or not
rpcService common.RPCService
cacheMutex sync.Mutex
cacheProtocol protocol.Protocol
exportersLock sync.Mutex
exporters []protocol.Exporter
metadataType string
}
// Prefix returns dubbo.service.${InterfaceName}.
func (s *ServiceConfig) Prefix() string {
return strings.Join([]string{constant.ServiceConfigPrefix, s.id}, ".")
}
func (s *ServiceConfig) Init(rc *RootConfig) error {
if err := initProviderMethodConfig(s); err != nil {
return err
}
if err := defaults.Set(s); err != nil {
return err
}
s.exported = atomic.NewBool(false)
s.metadataType = rc.Application.MetadataType
if s.Filter == "" {
s.Filter = rc.Provider.Filter
}
if s.Version == "" {
s.Version = rc.Application.Version
}
if s.Group == "" {
s.Group = rc.Application.Group
}
s.unexported = atomic.NewBool(false)
if len(s.RCRegistriesMap) == 0 {
s.RCRegistriesMap = rc.Registries
}
if len(s.RCProtocolsMap) == 0 {
s.RCProtocolsMap = rc.Protocols
}
if rc.Provider != nil {
s.ProxyFactoryKey = rc.Provider.ProxyFactory
}
s.RegistryIDs = translateIds(s.RegistryIDs)
if len(s.RegistryIDs) <= 0 {
s.RegistryIDs = rc.Provider.RegistryIDs
}
s.ProtocolIDs = translateIds(s.ProtocolIDs)
if len(s.ProtocolIDs) <= 0 {
s.ProtocolIDs = rc.Provider.ProtocolIDs
}
if len(s.ProtocolIDs) <= 0 {
for k := range rc.Protocols {
s.ProtocolIDs = append(s.ProtocolIDs, k)
}
}
if s.TracingKey == "" {
s.TracingKey = rc.Provider.TracingKey
}
err := s.check()
if err != nil {
panic(err)
}
s.export = true
return verify(s)
}
func (s *ServiceConfig) check() error {
// check if the limiter has been imported
if s.TpsLimiter != "" {
_, err := extension.GetTpsLimiter(s.TpsLimiter)
if err != nil {
panic(err)
}
}
if s.TpsLimitStrategy != "" {
_, err := extension.GetTpsLimitStrategyCreator(s.TpsLimitStrategy)
if err != nil {
panic(err)
}
}
if s.TpsLimitRejectedHandler != "" {
_, err := extension.GetRejectedExecutionHandler(s.TpsLimitRejectedHandler)
if err != nil {
panic(err)
}
}
if s.TpsLimitInterval != "" {
tpsLimitInterval, err := strconv.ParseInt(s.TpsLimitInterval, 0, 0)
if err != nil {
return fmt.Errorf("[ServiceConfig] Cannot parse the configuration tps.limit.interval for service %s, please check your configuration", s.Interface)
}
if tpsLimitInterval < 0 {
return fmt.Errorf("[ServiceConfig] The configuration tps.limit.interval for service %s must be positive, please check your configuration", s.Interface)
}
}
if s.TpsLimitRate != "" {
tpsLimitRate, err := strconv.ParseInt(s.TpsLimitRate, 0, 0)
if err != nil {
return fmt.Errorf("[ServiceConfig] Cannot parse the configuration tps.limit.rate for service %s, please check your configuration", s.Interface)
}
if tpsLimitRate < 0 {
return fmt.Errorf("[ServiceConfig] The configuration tps.limit.rate for service %s must be positive, please check your configuration", s.Interface)
}
}
return nil
}
// InitExported will set exported as false atom bool
func (s *ServiceConfig) InitExported() {
s.exported = atomic.NewBool(false)
}
// IsExport will return whether the service config is exported or not
func (s *ServiceConfig) IsExport() bool {
return s.exported.Load()
}
// Get Random Port
func getRandomPort(protocolConfigs []*ProtocolConfig) *list.List {
ports := list.New()
for _, proto := range protocolConfigs {
if len(proto.Port) > 0 {
continue
}
tcp, err := gxnet.ListenOnTCPRandomPort(proto.Ip)
if err != nil {
panic(perrors.New(fmt.Sprintf("Get tcp port error, err is {%v}", err)))
}
defer tcp.Close()
ports.PushBack(strings.Split(tcp.Addr().String(), ":")[1])
}
return ports
}
// Export exports the service
func (s *ServiceConfig) Export() error {
// TODO: delay export
if s.unexported != nil && s.unexported.Load() {
err := perrors.Errorf("The service %v has already unexported!", s.Interface)
logger.Errorf(err.Error())
return err
}
if s.exported != nil && s.exported.Load() {
logger.Warnf("The service %v has already exported!", s.Interface)
return nil
}
regUrls := make([]*common.URL, 0)
if !s.NotRegister {
regUrls = loadRegistries(s.RegistryIDs, s.RCRegistriesMap, common.PROVIDER)
}
urlMap := s.getUrlMap()
protocolConfigs := loadProtocol(s.ProtocolIDs, s.RCProtocolsMap)
if len(protocolConfigs) == 0 {
logger.Warnf("The service %v's '%v' protocols don't has right protocolConfigs, Please check your configuration center and transfer protocol ", s.Interface, s.ProtocolIDs)
return nil
}
ports := getRandomPort(protocolConfigs)
nextPort := ports.Front()
proxyFactory := extension.GetProxyFactory(s.ProxyFactoryKey)
for _, proto := range protocolConfigs {
// registry the service reflect
methods, err := common.ServiceMap.Register(s.Interface, proto.Name, s.Group, s.Version, s.rpcService)
if err != nil {
formatErr := perrors.Errorf("The service %v export the protocol %v error! Error message is %v.",
s.Interface, proto.Name, err.Error())
logger.Errorf(formatErr.Error())
return formatErr
}
port := proto.Port
if len(proto.Port) == 0 {
port = nextPort.Value.(string)
nextPort = nextPort.Next()
}
ivkURL := common.NewURLWithOptions(
common.WithPath(s.Interface),
common.WithProtocol(proto.Name),
common.WithIp(proto.Ip),
common.WithPort(port),
common.WithParams(urlMap),
common.WithParamsValue(constant.BeanNameKey, s.id),
//common.WithParamsValue(constant.SslEnabledKey, strconv.FormatBool(config.GetSslEnabled())),
common.WithMethods(strings.Split(methods, ",")),
common.WithToken(s.Token),
common.WithParamsValue(constant.MetadataTypeKey, s.metadataType),
)
if len(s.Tag) > 0 {
ivkURL.AddParam(constant.Tagkey, s.Tag)
}
// post process the URL to be exported
s.postProcessConfig(ivkURL)
// config post processor may set "export" to false
if !ivkURL.GetParamBool(constant.ExportKey, true) {
return nil
}
if len(regUrls) > 0 {
s.cacheMutex.Lock()
if s.cacheProtocol == nil {
logger.Debugf(fmt.Sprintf("First load the registry protocol, url is {%v}!", ivkURL))
s.cacheProtocol = extension.GetProtocol(constant.RegistryProtocol)
}
s.cacheMutex.Unlock()
for _, regUrl := range regUrls {
setRegistrySubURL(ivkURL, regUrl)
invoker := proxyFactory.GetInvoker(regUrl)
exporter := s.cacheProtocol.Export(invoker)
if exporter == nil {
return perrors.New(fmt.Sprintf("Registry protocol new exporter error, registry is {%v}, url is {%v}", regUrl, ivkURL))
}
s.exporters = append(s.exporters, exporter)
}
} else {
if ivkURL.GetParam(constant.InterfaceKey, "") == constant.MetadataServiceName {
ms, err := extension.GetLocalMetadataService("")
if err != nil {
logger.Warnf("export org.apache.dubbo.metadata.MetadataService failed beacause of %s ! pls check if you import _ \"dubbo.apache.org/dubbo-go/v3/metadata/service/local\"", err)
return nil
}
if err := ms.SetMetadataServiceURL(ivkURL); err != nil {
logger.Warnf("SetMetadataServiceURL error = %s", err)
}
}
invoker := proxyFactory.GetInvoker(ivkURL)
exporter := extension.GetProtocol(protocolwrapper.FILTER).Export(invoker)
if exporter == nil {
return perrors.New(fmt.Sprintf("Filter protocol without registry new exporter error, url is {%v}", ivkURL))
}
s.exporters = append(s.exporters, exporter)
}
publishServiceDefinition(ivkURL)
}
s.exported.Store(true)
return nil
}
//setRegistrySubURL set registry sub url is ivkURl
func setRegistrySubURL(ivkURL *common.URL, regUrl *common.URL) {
ivkURL.AddParam(constant.RegistryKey, regUrl.GetParam(constant.RegistryKey, ""))
regUrl.SubURL = ivkURL
}
//loadProtocol filter protocols by ids
func loadProtocol(protocolIds []string, protocols map[string]*ProtocolConfig) []*ProtocolConfig {
returnProtocols := make([]*ProtocolConfig, 0, len(protocols))
for _, v := range protocolIds {
for k, config := range protocols {
if v == k {
returnProtocols = append(returnProtocols, config)
}
}
}
return returnProtocols
}
func loadRegistries(registryIds []string, registries map[string]*RegistryConfig, roleType common.RoleType) []*common.URL {
var registryURLs []*common.URL
//trSlice := strings.Split(targetRegistries, ",")
for k, registryConf := range registries {
target := false
// if user not config targetRegistries, default load all
// Notice: in func "func Split(s, sep string) []string" comment:
// if s does not contain sep and sep is not empty, SplitAfter returns
// a slice of length 1 whose only element is s. So we have to add the
// condition when targetRegistries string is not set (it will be "" when not set)
if len(registryIds) == 0 || (len(registryIds) == 1 && registryIds[0] == "") {
target = true
} else {
// else if user config targetRegistries
for _, tr := range registryIds {
if tr == k {
target = true
break
}
}
}
if target {
if registryURL, err := registryConf.toURL(roleType); err != nil {
logger.Errorf("The registry id: %s url is invalid, error: %#v", k, err)
panic(err)
} else {
registryURLs = append(registryURLs, registryURL)
}
}
}
return registryURLs
}
// Unexport will call unexport of all exporters service config exported
func (s *ServiceConfig) Unexport() {
if !s.exported.Load() {
return
}
if s.unexported.Load() {
return
}
func() {
s.exportersLock.Lock()
defer s.exportersLock.Unlock()
for _, exporter := range s.exporters {
exporter.UnExport()
}
s.exporters = nil
}()
s.exported.Store(false)
s.unexported.Store(true)
}
// Implement only store the @s and return
func (s *ServiceConfig) Implement(rpcService common.RPCService) {
s.rpcService = rpcService
}
func (s *ServiceConfig) getUrlMap() url.Values {
urlMap := url.Values{}
// first set user params
for k, v := range s.Params {
urlMap.Set(k, v)
}
urlMap.Set(constant.InterfaceKey, s.Interface)
urlMap.Set(constant.TimestampKey, strconv.FormatInt(time.Now().Unix(), 10))
urlMap.Set(constant.ClusterKey, s.Cluster)
urlMap.Set(constant.LoadbalanceKey, s.Loadbalance)
urlMap.Set(constant.WarmupKey, s.Warmup)
urlMap.Set(constant.RetriesKey, s.Retries)
if s.Group != "" {
urlMap.Set(constant.GroupKey, s.Group)
}
if s.Version != "" {
urlMap.Set(constant.VersionKey, s.Version)
}
urlMap.Set(constant.RegistryRoleKey, strconv.Itoa(common.PROVIDER))
urlMap.Set(constant.ReleaseKey, "dubbo-golang-"+constant.Version)
urlMap.Set(constant.SideKey, (common.RoleType(common.PROVIDER)).Role())
urlMap.Set(constant.MessageSizeKey, strconv.Itoa(s.GrpcMaxMessageSize))
// todo: move
urlMap.Set(constant.SerializationKey, s.Serialization)
// application config info
ac := GetApplicationConfig()
urlMap.Set(constant.ApplicationKey, ac.Name)
urlMap.Set(constant.OrganizationKey, ac.Organization)
urlMap.Set(constant.NameKey, ac.Name)
urlMap.Set(constant.ModuleKey, ac.Module)
urlMap.Set(constant.AppVersionKey, ac.Version)
urlMap.Set(constant.OwnerKey, ac.Owner)
urlMap.Set(constant.EnvironmentKey, ac.Environment)
// filter
var filters string
if s.Filter == "" {
filters = constant.DefaultServiceFilters
} else {
filters = s.Filter
}
if s.adaptiveService {
filters += fmt.Sprintf(",%s", constant.AdaptiveServiceProviderFilterKey)
}
urlMap.Set(constant.ServiceFilterKey, filters)
// filter special config
urlMap.Set(constant.AccessLogFilterKey, s.AccessLog)
// tps limiter
urlMap.Set(constant.TPSLimitStrategyKey, s.TpsLimitStrategy)
urlMap.Set(constant.TPSLimitIntervalKey, s.TpsLimitInterval)
urlMap.Set(constant.TPSLimitRateKey, s.TpsLimitRate)
urlMap.Set(constant.TPSLimiterKey, s.TpsLimiter)
urlMap.Set(constant.TPSRejectedExecutionHandlerKey, s.TpsLimitRejectedHandler)
urlMap.Set(constant.TracingConfigKey, s.TracingKey)
// execute limit filter
urlMap.Set(constant.ExecuteLimitKey, s.ExecuteLimit)
urlMap.Set(constant.ExecuteRejectedExecutionHandlerKey, s.ExecuteLimitRejectedHandler)
// auth filter
urlMap.Set(constant.ServiceAuthKey, s.Auth)
urlMap.Set(constant.ParameterSignatureEnableKey, s.ParamSign)
// whether to export or not
urlMap.Set(constant.ExportKey, strconv.FormatBool(s.export))
urlMap.Set(constant.PIDKey, fmt.Sprintf("%d", os.Getpid()))
for _, v := range s.Methods {
prefix := "methods." + v.Name + "."
urlMap.Set(prefix+constant.LoadbalanceKey, v.LoadBalance)
urlMap.Set(prefix+constant.RetriesKey, v.Retries)
urlMap.Set(prefix+constant.WeightKey, strconv.FormatInt(v.Weight, 10))
urlMap.Set(prefix+constant.TPSLimitStrategyKey, v.TpsLimitStrategy)
urlMap.Set(prefix+constant.TPSLimitIntervalKey, v.TpsLimitInterval)
urlMap.Set(prefix+constant.TPSLimitRateKey, v.TpsLimitRate)
urlMap.Set(constant.ExecuteLimitKey, v.ExecuteLimit)
urlMap.Set(constant.ExecuteRejectedExecutionHandlerKey, v.ExecuteLimitRejectedHandler)
}
return urlMap
}
// GetExportedUrls will return the url in service config's exporter
func (s *ServiceConfig) GetExportedUrls() []*common.URL {
if s.exported.Load() {
var urls []*common.URL
for _, exporter := range s.exporters {
urls = append(urls, exporter.GetInvoker().GetURL())
}
return urls
}
return nil
}
// postProcessConfig asks registered ConfigPostProcessor to post-process the current ServiceConfig.
func (s *ServiceConfig) postProcessConfig(url *common.URL) {
for _, p := range extension.GetConfigPostProcessors() {
p.PostProcessServiceConfig(url)
}
}
// newEmptyServiceConfig returns default ServiceConfig
func newEmptyServiceConfig() *ServiceConfig {
newServiceConfig := &ServiceConfig{
unexported: atomic.NewBool(false),
exported: atomic.NewBool(false),
export: true,
RCProtocolsMap: make(map[string]*ProtocolConfig),
RCRegistriesMap: make(map[string]*RegistryConfig),
}
newServiceConfig.Params = make(map[string]string)
newServiceConfig.Methods = make([]*MethodConfig, 0, 8)
return newServiceConfig
}
type ServiceConfigBuilder struct {
serviceConfig *ServiceConfig
}
func NewServiceConfigBuilder() *ServiceConfigBuilder {
return &ServiceConfigBuilder{serviceConfig: newEmptyServiceConfig()}
}
func (pcb *ServiceConfigBuilder) SetRegistryIDs(registryIDs ...string) *ServiceConfigBuilder {
pcb.serviceConfig.RegistryIDs = registryIDs
return pcb
}
func (pcb *ServiceConfigBuilder) SetProtocolIDs(protocolIDs ...string) *ServiceConfigBuilder {
pcb.serviceConfig.ProtocolIDs = protocolIDs
return pcb
}
func (pcb *ServiceConfigBuilder) SetInterface(interfaceName string) *ServiceConfigBuilder {
pcb.serviceConfig.Interface = interfaceName
return pcb
}
func (pcb *ServiceConfigBuilder) SetMetadataType(setMetadataType string) *ServiceConfigBuilder {
pcb.serviceConfig.metadataType = setMetadataType
return pcb
}
func (pcb *ServiceConfigBuilder) SetLoadBalancce(lb string) *ServiceConfigBuilder {
pcb.serviceConfig.Loadbalance = lb
return pcb
}
func (pcb *ServiceConfigBuilder) SetWarmUpTie(warmUp string) *ServiceConfigBuilder {
pcb.serviceConfig.Warmup = warmUp
return pcb
}
func (pcb *ServiceConfigBuilder) SetCluster(cluster string) *ServiceConfigBuilder {
pcb.serviceConfig.Cluster = cluster
return pcb
}
func (pcb *ServiceConfigBuilder) AddRCProtocol(protocolName string, protocolConfig *ProtocolConfig) *ServiceConfigBuilder {
pcb.serviceConfig.RCProtocolsMap[protocolName] = protocolConfig
return pcb
}
func (pcb *ServiceConfigBuilder) AddRCRegistry(registryName string, registryConfig *RegistryConfig) *ServiceConfigBuilder {
pcb.serviceConfig.RCRegistriesMap[registryName] = registryConfig
return pcb
}
func (pcb *ServiceConfigBuilder) SetGroup(group string) *ServiceConfigBuilder {
pcb.serviceConfig.Group = group
return pcb
}
func (pcb *ServiceConfigBuilder) SetVersion(version string) *ServiceConfigBuilder {
pcb.serviceConfig.Version = version
return pcb
}
func (pcb *ServiceConfigBuilder) SetProxyFactoryKey(proxyFactoryKey string) *ServiceConfigBuilder {
pcb.serviceConfig.ProxyFactoryKey = proxyFactoryKey
return pcb
}
func (pcb *ServiceConfigBuilder) SetRPCService(service common.RPCService) *ServiceConfigBuilder {
pcb.serviceConfig.rpcService = service
return pcb
}
func (pcb *ServiceConfigBuilder) SetSerialization(serialization string) *ServiceConfigBuilder {
pcb.serviceConfig.Serialization = serialization
return pcb
}
func (pcb *ServiceConfigBuilder) SetServiceID(id string) *ServiceConfigBuilder {
pcb.serviceConfig.id = id
return pcb
}
func (pcb *ServiceConfigBuilder) SetNotRegister(notRegister bool) *ServiceConfigBuilder {
pcb.serviceConfig.NotRegister = notRegister
return pcb
}
func (pcb *ServiceConfigBuilder) Build() *ServiceConfig {
return pcb.serviceConfig
}