@@ -0,0 +1,267 @@
|
||||
package elastic
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"context"
|
||||
"encoding/json"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"net/http"
|
||||
"time"
|
||||
|
||||
"91porn-server/common/log"
|
||||
|
||||
"github.com/elastic/go-elasticsearch/v8/esapi"
|
||||
)
|
||||
|
||||
type M map[string]interface{}
|
||||
|
||||
type A []map[string]interface{}
|
||||
|
||||
type MGetBody struct {
|
||||
ID string `json:"_id"`
|
||||
}
|
||||
|
||||
// ElasticResp 响应
|
||||
type Response = esapi.Response
|
||||
|
||||
type Options struct {
|
||||
Address []string
|
||||
MaxIdleConnsPerHost int //每个client z最多允许的空闲连接数
|
||||
IdleConnTimeout time.Duration //空闲连接超时时间
|
||||
UserName string
|
||||
PassWord string
|
||||
}
|
||||
|
||||
// 查看集群信息
|
||||
func (c *Client) Info() (*Response, error) {
|
||||
resp, err := c.Client.Info(c.Client.Info.WithContext(context.Background()))
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
resp.Body.Close()
|
||||
return resp, err
|
||||
}
|
||||
|
||||
// 初始化索引
|
||||
func (c *Client) CreateIndices(index string, setting M) error {
|
||||
resp, err := c.Client.Indices.Create(index, func(request *esapi.IndicesCreateRequest) {
|
||||
request.Body = marshalSearchM(setting)
|
||||
})
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
resp.Body.Close()
|
||||
return nil
|
||||
}
|
||||
|
||||
// search 搜索
|
||||
func (c *Client) Search(index string, bind interface{}, query M, o ...func(*esapi.SearchRequest)) error {
|
||||
o = append(o,
|
||||
c.Client.Search.WithContext(context.Background()),
|
||||
c.Client.Search.WithIndex(index),
|
||||
c.Client.Search.WithBody(marshalSearchM(query)),
|
||||
c.Client.Search.WithTrackTotalHits(true),
|
||||
c.Client.Search.WithPretty(),
|
||||
)
|
||||
resp, err := c.Client.Search(o...)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
return unmarshalBody(bind, resp)
|
||||
}
|
||||
|
||||
func (c *Client) SearchWithTotal(index string, bind interface{}, query M, o ...func(*esapi.SearchRequest)) error {
|
||||
o = append(o,
|
||||
c.Client.Search.WithContext(context.Background()),
|
||||
c.Client.Search.WithIndex(index),
|
||||
c.Client.Search.WithBody(marshalSearchM(query)),
|
||||
c.Client.Search.WithTrackTotalHits(true),
|
||||
c.Client.Search.WithPretty(),
|
||||
)
|
||||
resp, err := c.Client.Search(o...)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
return unmarshalBodyWithTotal(bind, resp)
|
||||
}
|
||||
|
||||
// Aggregate Aggregate 聚合
|
||||
func (c *Client) Aggregate(index string, bind interface{}, query M, o ...func(*esapi.SearchRequest)) (int, error) {
|
||||
o = append(o,
|
||||
c.Client.Search.WithContext(context.Background()),
|
||||
c.Client.Search.WithIndex(index),
|
||||
c.Client.Search.WithBody(marshalSearchM(query)),
|
||||
c.Client.Search.WithTrackTotalHits(true),
|
||||
c.Client.Search.WithPretty(),
|
||||
)
|
||||
resp, err := c.Client.Search(o...)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
return resp.StatusCode, unmarshalAggregateBody(bind, resp)
|
||||
}
|
||||
|
||||
// Get 根据ID搜索
|
||||
func (c *Client) Get(index string, bind interface{}, id string, o ...func(*esapi.GetRequest)) (int, error) {
|
||||
o = append(o,
|
||||
c.Client.Get.WithContext(context.Background()),
|
||||
c.Client.Get.WithPretty(),
|
||||
)
|
||||
resp, err := c.Client.Get(index, id, o...)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
return resp.StatusCode, unmarshalBody(bind, resp)
|
||||
}
|
||||
|
||||
// MGet MGet 批量查询
|
||||
func (c *Client) MGet(index string, bind interface{}, ids []string, o ...func(*esapi.MgetRequest)) error {
|
||||
m := make([]MGetBody, len(ids))
|
||||
for i, v := range ids {
|
||||
m[i] = MGetBody{ID: v}
|
||||
}
|
||||
o = append(o,
|
||||
c.Client.Mget.WithIndex(index),
|
||||
c.Client.Mget.WithContext(context.Background()),
|
||||
)
|
||||
resp, err := c.Client.Mget(marshalSearchM(M{"docs": m}), o...)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
if resp.StatusCode != http.StatusOK {
|
||||
return fmt.Errorf("%+v", resp)
|
||||
}
|
||||
return unmarshalBody(bind, resp)
|
||||
}
|
||||
|
||||
// BulkDelete 函数
|
||||
func (c *Client) BulkDelete(index string, source M, o ...func(*esapi.BulkRequest)) error {
|
||||
o = append(o,
|
||||
c.Client.Bulk.WithIndex(index),
|
||||
c.Client.Bulk.WithContext(context.Background()),
|
||||
c.Client.Bulk.WithRefresh("true"),
|
||||
)
|
||||
resp, err := c.Client.Bulk(marshalDeleteBulkM(source), o...)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
if resp.IsError() {
|
||||
return fmt.Errorf("error response: %s", resp.String())
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func marshalDeleteBulkM(source M) io.Reader {
|
||||
var buf bytes.Buffer
|
||||
for k, _ := range source {
|
||||
var meta = []byte(fmt.Sprintf(`{ "delete" : { "_id" : "%s" } }%s`, k, "\n"))
|
||||
buf.Grow(len(meta))
|
||||
buf.Write(meta)
|
||||
}
|
||||
return bytes.NewReader(buf.Bytes())
|
||||
}
|
||||
|
||||
// 批量插入
|
||||
func (c *Client) Bulk(index string, source M, o ...func(*esapi.BulkRequest)) error {
|
||||
o = append(o,
|
||||
c.Client.Bulk.WithIndex(index),
|
||||
c.Client.Bulk.WithContext(context.Background()),
|
||||
)
|
||||
resp, err := c.Client.Bulk(marshalBulkM(source), o...)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
resp.Body.Close()
|
||||
if resp.StatusCode != http.StatusOK {
|
||||
return fmt.Errorf("%+v", resp)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// BulkChecked 在 HTTP 成功后继续检查每条写入结果,供需要可靠推进同步进度的任务使用。
|
||||
func (c *Client) BulkChecked(index string, source M) error {
|
||||
if len(source) == 0 {
|
||||
return nil
|
||||
}
|
||||
ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
|
||||
defer cancel()
|
||||
resp, err := c.Client.Bulk(marshalBulkM(source),
|
||||
c.Client.Bulk.WithIndex(index), c.Client.Bulk.WithContext(ctx))
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
if resp.StatusCode != http.StatusOK {
|
||||
return fmt.Errorf("bulk %s: HTTP %d", index, resp.StatusCode)
|
||||
}
|
||||
var result struct {
|
||||
Errors bool `json:"errors"`
|
||||
Items []map[string]struct {
|
||||
ID string `json:"_id"`
|
||||
Status int `json:"status"`
|
||||
Error json.RawMessage `json:"error"`
|
||||
} `json:"items"`
|
||||
}
|
||||
if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
|
||||
return fmt.Errorf("decode bulk %s response: %w", index, err)
|
||||
}
|
||||
if len(result.Items) != len(source) {
|
||||
return fmt.Errorf("bulk %s: expected %d results, got %d", index, len(source), len(result.Items))
|
||||
}
|
||||
for _, item := range result.Items {
|
||||
entry, ok := item["index"]
|
||||
if !ok || len(item) != 1 {
|
||||
return fmt.Errorf("bulk %s: missing index result", index)
|
||||
}
|
||||
if entry.Status < 200 || entry.Status >= 300 || (len(entry.Error) > 0 && string(entry.Error) != "null") {
|
||||
return fmt.Errorf("bulk %s: document %s failed, status %d", index, entry.ID, entry.Status)
|
||||
}
|
||||
}
|
||||
if result.Errors {
|
||||
return fmt.Errorf("bulk %s: response contains errors", index)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Count 获取数量
|
||||
func (c *Client) Count(index string, query M, o ...func(*esapi.CountRequest)) (cnt int, err error) {
|
||||
o = append(o,
|
||||
c.Client.Count.WithIndex(index),
|
||||
c.Client.Count.WithBody(marshalSearchM(query)),
|
||||
c.Client.Count.WithContext(context.Background()),
|
||||
)
|
||||
resp, err := c.Client.Count(o...)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
if resp.StatusCode != http.StatusOK {
|
||||
return 0, fmt.Errorf("%+v", resp)
|
||||
}
|
||||
var bind struct {
|
||||
Count int `json:"count"`
|
||||
}
|
||||
return bind.Count, unmarshalBody(&bind, resp)
|
||||
}
|
||||
|
||||
func (c *Client) Ping() error {
|
||||
resp, err := c.Client.Ping(c.Client.Ping.WithContext(context.Background()))
|
||||
if err != nil {
|
||||
log.Warn("elasticSarch ping error ", log.E(err))
|
||||
return err
|
||||
}
|
||||
resp.Body.Close()
|
||||
if resp.StatusCode != http.StatusOK {
|
||||
log.Warn("elasticSarch ping failed ", log.Any("status code", resp.StatusCode))
|
||||
return errors.New("elasticSarch ping failed")
|
||||
}
|
||||
return nil
|
||||
}
|
||||
Reference in New Issue
Block a user