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