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serverFind.go
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serverFind.go
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package nacosRF
import (
"github.com/nacos-group/nacos-sdk-go/model"
"github.com/nacos-group/nacos-sdk-go/vo"
)
type ServerInfo struct {
Ip string
Port uint64
ServerName string
}
// FindOneInstance 获取某个服务连接信息
func (this *nacosRF) FindOneInstance(serverName string) (*ServerInfo, error) {
instance, err := this.client.SelectOneHealthyInstance(vo.SelectOneHealthInstanceParam{
Clusters: []string{clusters},
ServiceName: serverName,
GroupName: groupName,
})
if err != nil {
return nil, err
}
return &ServerInfo{
Ip: instance.Ip,
Port: instance.Port,
ServerName: instance.ServiceName,
}, nil
}
// FindAllInstance 获取全部服务连接信息
func (this *nacosRF) FindAllInstance(serverName string) ([]*ServerInfo, error) {
ins, err := this.client.SelectInstances(vo.SelectInstancesParam{
Clusters: []string{clusters},
ServiceName: serverName,
GroupName: groupName,
HealthyOnly: true,
})
if err != nil {
return nil, err
}
infos := make([]*ServerInfo, 0)
for _, info := range ins {
infos = append(infos, &ServerInfo{
Ip: info.Ip,
Port: info.Port,
ServerName: info.ServiceName,
})
}
return infos, nil
}
// ListenInstance 监听某个服务状态信息
func (this *nacosRF) ListenInstance(serverName string, callback func(server *ServerInfo)) {
this.client.Subscribe(&vo.SubscribeParam{
ServiceName: serverName,
Clusters: []string{clusters},
GroupName: groupName,
SubscribeCallback: func(services []model.SubscribeService, err error) {
for _, service := range services {
if service.Enable && service.Healthy {
callback(&ServerInfo{
Ip: service.Ip,
Port: service.Port,
ServerName: service.ServiceName,
})
}
}
},
})
}