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get_lifecycle.go
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get_lifecycle.go
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// 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.
// Code generated from the elasticsearch-specification DO NOT EDIT.
// https://github.com/elastic/elasticsearch-specification/tree/ac9c431ec04149d9048f2b8f9731e3c2f7f38754
// Retrieves one or more snapshot lifecycle policy definitions and information
// about the latest snapshot attempts.
package getlifecycle
import (
gobytes "bytes"
"context"
"encoding/json"
"errors"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"strings"
"github.com/elastic/elastic-transport-go/v8/elastictransport"
"github.com/elastic/go-elasticsearch/v8/typedapi/types"
)
const (
policyidMask = iota + 1
)
// ErrBuildPath is returned in case of missing parameters within the build of the request.
var ErrBuildPath = errors.New("cannot build path, check for missing path parameters")
type GetLifecycle struct {
transport elastictransport.Interface
headers http.Header
values url.Values
path url.URL
buf *gobytes.Buffer
paramSet int
policyid string
}
// NewGetLifecycle type alias for index.
type NewGetLifecycle func() *GetLifecycle
// NewGetLifecycleFunc returns a new instance of GetLifecycle with the provided transport.
// Used in the index of the library this allows to retrieve every apis in once place.
func NewGetLifecycleFunc(tp elastictransport.Interface) NewGetLifecycle {
return func() *GetLifecycle {
n := New(tp)
return n
}
}
// Retrieves one or more snapshot lifecycle policy definitions and information
// about the latest snapshot attempts.
//
// https://www.elastic.co/guide/en/elasticsearch/reference/current/slm-api-get-policy.html
func New(tp elastictransport.Interface) *GetLifecycle {
r := &GetLifecycle{
transport: tp,
values: make(url.Values),
headers: make(http.Header),
buf: gobytes.NewBuffer(nil),
}
return r
}
// HttpRequest returns the http.Request object built from the
// given parameters.
func (r *GetLifecycle) HttpRequest(ctx context.Context) (*http.Request, error) {
var path strings.Builder
var method string
var req *http.Request
var err error
r.path.Scheme = "http"
switch {
case r.paramSet == policyidMask:
path.WriteString("/")
path.WriteString("_slm")
path.WriteString("/")
path.WriteString("policy")
path.WriteString("/")
path.WriteString(r.policyid)
method = http.MethodGet
case r.paramSet == 0:
path.WriteString("/")
path.WriteString("_slm")
path.WriteString("/")
path.WriteString("policy")
method = http.MethodGet
}
r.path.Path = path.String()
r.path.RawQuery = r.values.Encode()
if r.path.Path == "" {
return nil, ErrBuildPath
}
if ctx != nil {
req, err = http.NewRequestWithContext(ctx, method, r.path.String(), r.buf)
} else {
req, err = http.NewRequest(method, r.path.String(), r.buf)
}
req.Header = r.headers.Clone()
if req.Header.Get("Accept") == "" {
req.Header.Set("Accept", "application/vnd.elasticsearch+json;compatible-with=8")
}
if err != nil {
return req, fmt.Errorf("could not build http.Request: %w", err)
}
return req, nil
}
// Perform runs the http.Request through the provided transport and returns an http.Response.
func (r GetLifecycle) Perform(ctx context.Context) (*http.Response, error) {
req, err := r.HttpRequest(ctx)
if err != nil {
return nil, err
}
res, err := r.transport.Perform(req)
if err != nil {
return nil, fmt.Errorf("an error happened during the GetLifecycle query execution: %w", err)
}
return res, nil
}
// Do runs the request through the transport, handle the response and returns a getlifecycle.Response
func (r GetLifecycle) Do(ctx context.Context) (Response, error) {
response := NewResponse()
res, err := r.Perform(ctx)
if err != nil {
return nil, err
}
defer res.Body.Close()
if res.StatusCode < 299 {
err = json.NewDecoder(res.Body).Decode(&response)
if err != nil {
return nil, err
}
return response, nil
}
errorResponse := types.NewElasticsearchError()
err = json.NewDecoder(res.Body).Decode(errorResponse)
if err != nil {
return nil, err
}
if errorResponse.Status == 0 {
errorResponse.Status = res.StatusCode
}
return nil, errorResponse
}
// IsSuccess allows to run a query with a context and retrieve the result as a boolean.
// This only exists for endpoints without a request payload and allows for quick control flow.
func (r GetLifecycle) IsSuccess(ctx context.Context) (bool, error) {
res, err := r.Perform(ctx)
if err != nil {
return false, err
}
io.Copy(ioutil.Discard, res.Body)
err = res.Body.Close()
if err != nil {
return false, err
}
if res.StatusCode >= 200 && res.StatusCode < 300 {
return true, nil
}
return false, nil
}
// Header set a key, value pair in the GetLifecycle headers map.
func (r *GetLifecycle) Header(key, value string) *GetLifecycle {
r.headers.Set(key, value)
return r
}
// PolicyId Comma-separated list of snapshot lifecycle policies to retrieve
// API Name: policyid
func (r *GetLifecycle) PolicyId(policyid string) *GetLifecycle {
r.paramSet |= policyidMask
r.policyid = policyid
return r
}