init: web_hgcg_server 初始化提交

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

pub/esmanager/manager.go

@@ -0,0 +1,53 @@
+package esmanager
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"net/http"
+
+	"github.com/elastic/go-elasticsearch/v7"
+)
+
+var Instance *Manager
+
+type Manager struct {
+	client *elasticsearch.Client
+	conf   *elasticsearch.Config
+}
+
+func NewManager(url string, user string, pw string) (*Manager, error) {
+	if url == "" {
+		return nil, errors.New(fmt.Sprintf("Elastic NewManager url is empty!"))
+	}
+	cfg := elasticsearch.Config{
+		Addresses: []string{url},
+		Transport: &http.Transport{
+			MaxIdleConnsPerHost: 10,
+			IdleConnTimeout:     30,
+		},
+		Username: user,
+		Password: pw,
+	}
+	return &Manager{conf: &cfg}, nil
+}
+
+func (m *Manager) Client() *elasticsearch.Client {
+	return m.client
+}
+
+func (m *Manager) ClientConnect() error {
+	c, err := elasticsearch.NewClient(*m.conf)
+	if err != nil {
+		return err
+	}
+	resp, err := c.Ping(c.Ping.WithContext(context.Background()))
+	if err != nil {
+		return err
+	}
+	if resp.StatusCode != http.StatusOK {
+		return errors.New(fmt.Sprintf("%+v", resp))
+	}
+	m.client = c
+	return nil
+}