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beta.go
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package eskeeper
import (
"bytes"
"context"
"encoding/json"
"errors"
"fmt"
"io/ioutil"
"github.com/Cside/jsondiff"
)
type indexConfigWithName map[string]indexConfig
type indexConfig struct {
Settings map[string]interface{} `json:"settings"`
Mappings map[string]interface{} `json:"mappings"`
}
func (c *esclient) index(ctx context.Context, index index) ([]byte, error) {
get := c.client.Indices.Get
res, err := get(
[]string{index.Name},
get.WithContext(ctx),
get.WithFlatSettings(true),
)
if err != nil {
return nil, fmt.Errorf("get %v settings: %w", index.Name, err)
}
if res.StatusCode != 200 {
body, err := ioutil.ReadAll(res.Body)
if err != nil {
return nil, fmt.Errorf("get %v settings: %w", index.Name, err)
}
return nil, fmt.Errorf("get %v settings: %v", index.Name, string(body))
}
b, err := ioutil.ReadAll(res.Body)
if err != nil {
return nil, fmt.Errorf("get %v settings: %w", index.Name, err)
}
return b, nil
}
// func (c *esclient) settings(ctx context.Context, index index) ([]byte, error) {
// getSettings := c.client.Indices.GetSettings
// res, err := getSettings(
// getSettings.WithIndex(index.Name),
// getSettings.WithContext(ctx),
// )
// if err != nil {
// return nil, fmt.Errorf("get %v settings: %w", index.Name, err)
// }
// if res.StatusCode != 200 {
// body, err := ioutil.ReadAll(res.Body)
// if err != nil {
// return nil, fmt.Errorf("get %v settings: %w", index.Name, err)
// }
// return nil, fmt.Errorf("get %v settings: %v", index.Name, string(body))
// }
// b, err := ioutil.ReadAll(res.Body)
// if err != nil {
// return nil, fmt.Errorf("get %v settings: %w", index.Name, err)
// }
// return b, nil
// }
// func (c *esclient) mapping(ctx context.Context, index index) ([]byte, error) {
// getMapping := c.client.Indices.GetMapping
// res, err := getMapping(
// getMapping.WithIndex(index.Name),
// getMapping.WithContext(ctx),
// )
// if err != nil {
// return nil, fmt.Errorf("get %v mapping: %w", index.Name, err)
// }
// if res.StatusCode != 200 {
// body, err := ioutil.ReadAll(res.Body)
// if err != nil {
// return nil, fmt.Errorf("get %v mapping: %w", index.Name, err)
// }
// return nil, fmt.Errorf("get %v mapping: %v", index.Name, string(body))
// }
// b, err := ioutil.ReadAll(res.Body)
// if err != nil {
// return nil, fmt.Errorf("get %v settings: %w", index.Name, err)
// }
// fmt.Println(string(b))
// return b, nil
// }
// func (c *esclient) equalSettings(ctx context.Context, index index, settingJSON []byte) (bool, error) {
// m, err := c.settings(ctx, index)
// if err != nil {
// return false, fmt.Errorf("get setting: %w", err)
// }
// if diff := jsondiff.Diff(m, settingJSON); diff != "" {
// // fmt.Printf("detect settings diff:\n%s", diff)
// return false, nil
// }
// return true, nil
// }
func (c *esclient) equalMappingsProperties(ctx context.Context, index index, mappingsJSON []byte) (bool, error) {
res, err := c.index(ctx, index)
if err != nil {
return false, fmt.Errorf("get mappings: %w", err)
}
gotConf := make(indexConfigWithName, 0)
err = json.Unmarshal(res, &gotConf)
if err != nil {
return false, fmt.Errorf("unmarshal mapping json: %w", err)
}
v, ok := gotConf[index.Name]
if !ok {
return false, errors.New("get index response dose not contain index name field")
}
b, err := json.Marshal(v.Mappings)
if err != nil {
return false, fmt.Errorf("marshal properties json: %w", err)
}
if diff := jsondiff.Diff(b, mappingsJSON); diff != "" {
// fmt.Printf("detect mapping diff:\n%s", diff)
return false, nil
}
return true, nil
}
func (c *esclient) updateIndex(ctx context.Context, index index) error {
putMapping := c.client.Indices.PutMapping
// putSetting := c.client.Indices.PutSettings
b, err := ioutil.ReadFile(index.Mapping)
if err != nil {
return fmt.Errorf("open mapping file: %w", err)
}
config := &indexConfig{}
err = json.Unmarshal(b, config)
if err != nil {
return fmt.Errorf("unmarshal mapping json: %w", err)
}
// mapping --------
if config.Mappings == nil {
// dose not contain
// return fmt.Errorf("get mappings from file: %w", err)
} else {
j, err := json.Marshal(config.Mappings)
if err != nil {
return fmt.Errorf("marshal mappings json: %w", err)
}
ok, err := c.equalMappingsProperties(ctx, index, j)
if err != nil {
return err
}
if !ok {
res, err := putMapping(
bytes.NewReader(j),
putMapping.WithIndex(index.Name),
putMapping.WithContext(ctx),
)
if err != nil {
return fmt.Errorf("get %v mapping: %w", index, err)
}
if res.StatusCode != 200 {
body, err := ioutil.ReadAll(res.Body)
if err != nil {
return fmt.Errorf("update %v mapping: %w", index.Name, err)
}
return fmt.Errorf("update %v mapping: %v", index.Name, string(body))
}
}
}
// // setting -------
// if config.Settings == nil {
// // dose not contain
// // return fmt.Errorf("get settings from file: %w", err)
// return nil
// }
// j, err := json.Marshal(config.Settings)
// if err != nil {
// return fmt.Errorf("marshal mappings json: %w", err)
// }
// ok, err := c.equalSettings(ctx, index, j)
// if err != nil {
// return err
// }
// if ok {
// return nil
// }
// res, err := putSetting(
// bytes.NewReader(j),
// putSetting.WithIndex(index.Name),
// putSetting.WithContext(ctx),
// )
// if err != nil {
// return fmt.Errorf("update %v setting: %w", index, err)
// }
// if res.StatusCode != 200 {
// body, err := ioutil.ReadAll(res.Body)
// if err != nil {
// return fmt.Errorf("update %v setting: %w", index.Name, err)
// }
// return fmt.Errorf("update %v setting: %v", index.Name, string(body))
// }
return nil
}