wip: basic feat

internal/es/client.go

@@ -0,0 +1,65 @@
+package es
+
+import (
+	"esgo2dump/internal/interfaces"
+	"fmt"
+	elastic "github.com/elastic/go-elasticsearch/v8"
+	"github.com/elastic/go-elasticsearch/v8/esapi"
+	"github.com/sirupsen/logrus"
+	"net/url"
+)
+
+func NewClient(url *url.URL) (interfaces.DumpIO, error) {
+
+	var (
+		err      error
+		endpoint = fmt.Sprintf("%s://%s:%s", url.Scheme, url.Host, url.Port())
+		c        *elastic.Client
+		infoResp *esapi.Response
+	)
+
+	logrus.Debugf("es.NewClient: endpoint=%s", endpoint)
+
+	if c, err = elastic.NewClient(
+		elastic.Config{
+			Addresses:     []string{endpoint},
+			Username:      "",
+			Password:      "",
+			CACert:        nil,
+			RetryOnStatus: []int{429},
+			MaxRetries:    3,
+			RetryBackoff:  nil,
+		},
+	); err != nil {
+		logrus.Debugf("es.NewClient: elastic new client with endpont=%s err=%v", endpoint, err)
+		return nil, err
+	}
+
+	if infoResp, err = c.Info(); err != nil {
+		return nil, err
+	}
+
+	if infoResp.StatusCode != 200 {
+		return nil, fmt.Errorf("info es status=%d", infoResp.StatusCode)
+	}
+
+	return &client{c: c}, nil
+}
+
+type client struct {
+	c *elastic.Client
+}
+
+func (c *client) Close() error {
+	return nil
+}
+
+func (c client) Write(docs []map[string]any) (int, error) {
+	//TODO implement me
+	panic("implement me")
+}
+
+func (c client) Read(i int) ([]map[string]any, error) {
+	//TODO implement me
+	panic("implement me")
+}