refactor logging options

pkg/simple/client/elasticsearch/interface.go

@@ -1,72 +1,7 @@
 package esclient
 
-import (
-	"context"
-	"encoding/json"
-	"fmt"
-	v5 "kubesphere.io/kubesphere/pkg/simple/client/elasticsearch/versions/v5"
-	v6 "kubesphere.io/kubesphere/pkg/simple/client/elasticsearch/versions/v6"
-	v7 "kubesphere.io/kubesphere/pkg/simple/client/elasticsearch/versions/v7"
-	"strings"
-)
-
-const (
-	ElasticV5 = "5"
-	ElasticV6 = "6"
-	ElasticV7 = "7"
-)
-
 type Client interface {
 	// Perform Search API
 	Search(body []byte) ([]byte, error)
 	GetTotalHitCount(v interface{}) int64
 }
-
-func NewForConfig(cfg *Config) Client {
-	address := fmt.Sprintf("http://%s:%s", cfg.Host, cfg.Port)
-	index := cfg.Index
-	switch cfg.VersionMajor {
-	case ElasticV5:
-		return v5.New(address, index)
-	case ElasticV6:
-		return v6.New(address, index)
-	case ElasticV7:
-		return v7.New(address, index)
-	default:
-		return nil
-	}
-}
-
-func detectVersionMajor(cfg *Config) error {
-
-	// Info APIs are backward compatible with versions of v5.x, v6.x and v7.x
-	address := fmt.Sprintf("http://%s:%s", cfg.Host, cfg.Port)
-	es := v6.New(address, "")
-	res, err := es.Client.Info(
-		es.Client.Info.WithContext(context.Background()),
-	)
-	if err != nil {
-		return err
-	}
-	defer res.Body.Close()
-
-	var b map[string]interface{}
-	if err := json.NewDecoder(res.Body).Decode(&b); err != nil {
-		return err
-	}
-	if res.IsError() {
-		// Print the response status and error information.
-		e, _ := b["error"].(map[string]interface{})
-		return fmt.Errorf("[%s] %s: %s", res.Status(), e["type"], e["reason"])
-	}
-
-	// get the major version
-	version, _ := b["version"].(map[string]interface{})
-	number, _ := version["number"].(string)
-	if number == "" {
-		return fmt.Errorf("failed to detect elastic version number")
-	}
-
-	cfg.VersionMajor = strings.Split(number, ".")[0]
-	return nil
-}