intergrate opensearch v2 (#5044)

intergrate opensearch

Signed-off-by: chengdehao <dehaocheng@kubesphere.io>

Co-authored-by: chengdehao <dehaocheng@kubesphere.io>

vendor/github.com/opensearch-project/opensearch-go/v2/opensearchapi/opensearchapi.response.go

@@ -0,0 +1,114 @@
+// SPDX-License-Identifier: Apache-2.0
+//
+// The OpenSearch Contributors require contributions made to
+// this file be licensed under the Apache-2.0 license or a
+// compatible open source license.
+//
+// Modifications Copyright OpenSearch Contributors. See
+// GitHub history for details.
+
+// Licensed to Elasticsearch B.V. under one or more contributor
+// license agreements. See the NOTICE file distributed with
+// this work for additional information regarding copyright
+// ownership. Elasticsearch B.V. licenses this file to you under
+// the Apache License, Version 2.0 (the "License"); you may
+// not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package opensearchapi
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"strconv"
+	"strings"
+)
+
+// Response represents the API response.
+//
+type Response struct {
+	StatusCode int
+	Header     http.Header
+	Body       io.ReadCloser
+}
+
+// String returns the response as a string.
+//
+// The intended usage is for testing or debugging only.
+//
+func (r *Response) String() string {
+	var (
+		out = new(bytes.Buffer)
+		b1  = bytes.NewBuffer([]byte{})
+		b2  = bytes.NewBuffer([]byte{})
+		tr  io.Reader
+	)
+
+	if r != nil && r.Body != nil {
+		tr = io.TeeReader(r.Body, b1)
+		defer r.Body.Close()
+
+		if _, err := io.Copy(b2, tr); err != nil {
+			out.WriteString(fmt.Sprintf("<error reading response body: %v>", err))
+			return out.String()
+		}
+		defer func() { r.Body = ioutil.NopCloser(b1) }()
+	}
+
+	if r != nil {
+		out.WriteString(fmt.Sprintf("[%d %s]", r.StatusCode, http.StatusText(r.StatusCode)))
+		if r.StatusCode > 0 {
+			out.WriteRune(' ')
+		}
+	} else {
+		out.WriteString("[0 <nil>]")
+	}
+
+	if r != nil && r.Body != nil {
+		out.ReadFrom(b2) // errcheck exclude (*bytes.Buffer).ReadFrom
+	}
+
+	return out.String()
+}
+
+// Status returns the response status as a string.
+//
+func (r *Response) Status() string {
+	var b strings.Builder
+	if r != nil {
+		b.WriteString(strconv.Itoa(r.StatusCode))
+		b.WriteString(" ")
+		b.WriteString(http.StatusText(r.StatusCode))
+	}
+	return b.String()
+}
+
+// IsError returns true when the response status indicates failure.
+//
+func (r *Response) IsError() bool {
+	return r.StatusCode > 299
+}
+
+// Warnings returns the deprecation warnings from response headers.
+//
+func (r *Response) Warnings() []string {
+	return r.Header["Warning"]
+}
+
+// HasWarnings returns true when the response headers contain deprecation warnings.
+//
+func (r *Response) HasWarnings() bool {
+	return len(r.Warnings()) > 0
+}