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utils.go
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utils.go
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package nacos
import (
"fmt"
"strconv"
"strings"
"github.com/nacos-group/nacos-sdk-go/clients"
"github.com/nacos-group/nacos-sdk-go/common/constant"
"github.com/nacos-group/nacos-sdk-go/model"
"github.com/nacos-group/nacos-sdk-go/vo"
)
func GetOneInstance(urls string, nameSpace string, param vo.SelectOneHealthInstanceParam) (instance *model.Instance, err error) {
serverConfigs, err := getServerConfigs(urls)
if err != nil {
return nil, fmt.Errorf("failed to resolve nacos server url %s: %s", urls, err.Error())
}
namingClient, err := clients.CreateNamingClient(map[string]interface{}{
"serverConfigs": serverConfigs,
"clientConfig": constant.ClientConfig{
NamespaceId: nameSpace,
TimeoutMs: 5000,
NotLoadCacheAtStart: true,
LogDir: "/dev/null",
},
})
if err != nil {
return nil, fmt.Errorf("failed to create nacos client when getting one service. error: %s", err.Error())
}
instance, err = namingClient.SelectOneHealthyInstance(param)
if err != nil {
return nil, fmt.Errorf("failed to get %s service in [%s, %s]. error: %s", param, urls, nameSpace, err.Error())
}
return instance, nil
}
func getServerConfigs(urls string) ([]constant.ServerConfig, error) {
// nolint
var configs []constant.ServerConfig
for _, url := range strings.Split(urls, ",") {
laddr := strings.Split(url, ":")
serverPort, err := strconv.Atoi(laddr[1])
if err != nil {
return nil, err
}
configs = append(configs, constant.ServerConfig{
IpAddr: laddr[0],
Port: uint64(serverPort),
})
}
return configs, nil
}