Issue search support elasticsearch (#9428)

* Issue search support elasticsearch

* Fix lint

* Add indexer name on app.ini

* add a warnning on SearchIssuesByKeyword

* improve code

vendor/github.com/olivere/elastic/v7/indices_put_template.go

@@ -0,0 +1,259 @@
+// Copyright 2012-present Oliver Eilhard. All rights reserved.
+// Use of this source code is governed by a MIT-license.
+// See http://olivere.mit-license.org/license.txt for details.
+
+package elastic
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"net/url"
+	"strings"
+
+	"github.com/olivere/elastic/v7/uritemplates"
+)
+
+// IndicesPutTemplateService creates or updates index mappings.
+// See https://www.elastic.co/guide/en/elasticsearch/reference/7.0/indices-templates.html.
+type IndicesPutTemplateService struct {
+	client *Client
+
+	pretty     *bool       // pretty format the returned JSON response
+	human      *bool       // return human readable values for statistics
+	errorTrace *bool       // include the stack trace of returned errors
+	filterPath []string    // list of filters used to reduce the response
+	headers    http.Header // custom request-level HTTP headers
+
+	name          string
+	cause         string
+	order         interface{}
+	version       *int
+	create        *bool
+	timeout       string
+	masterTimeout string
+	flatSettings  *bool
+	bodyJson      interface{}
+	bodyString    string
+}
+
+// NewIndicesPutTemplateService creates a new IndicesPutTemplateService.
+func NewIndicesPutTemplateService(client *Client) *IndicesPutTemplateService {
+	return &IndicesPutTemplateService{
+		client: client,
+	}
+}
+
+// Pretty tells Elasticsearch whether to return a formatted JSON response.
+func (s *IndicesPutTemplateService) Pretty(pretty bool) *IndicesPutTemplateService {
+	s.pretty = &pretty
+	return s
+}
+
+// Human specifies whether human readable values should be returned in
+// the JSON response, e.g. "7.5mb".
+func (s *IndicesPutTemplateService) Human(human bool) *IndicesPutTemplateService {
+	s.human = &human
+	return s
+}
+
+// ErrorTrace specifies whether to include the stack trace of returned errors.
+func (s *IndicesPutTemplateService) ErrorTrace(errorTrace bool) *IndicesPutTemplateService {
+	s.errorTrace = &errorTrace
+	return s
+}
+
+// FilterPath specifies a list of filters used to reduce the response.
+func (s *IndicesPutTemplateService) FilterPath(filterPath ...string) *IndicesPutTemplateService {
+	s.filterPath = filterPath
+	return s
+}
+
+// Header adds a header to the request.
+func (s *IndicesPutTemplateService) Header(name string, value string) *IndicesPutTemplateService {
+	if s.headers == nil {
+		s.headers = http.Header{}
+	}
+	s.headers.Add(name, value)
+	return s
+}
+
+// Headers specifies the headers of the request.
+func (s *IndicesPutTemplateService) Headers(headers http.Header) *IndicesPutTemplateService {
+	s.headers = headers
+	return s
+}
+
+// Name is the name of the index template.
+func (s *IndicesPutTemplateService) Name(name string) *IndicesPutTemplateService {
+	s.name = name
+	return s
+}
+
+// Cause describes the cause for this index template creation. This is currently
+// undocumented, but part of the Java source.
+func (s *IndicesPutTemplateService) Cause(cause string) *IndicesPutTemplateService {
+	s.cause = cause
+	return s
+}
+
+// Timeout is an explicit operation timeout.
+func (s *IndicesPutTemplateService) Timeout(timeout string) *IndicesPutTemplateService {
+	s.timeout = timeout
+	return s
+}
+
+// MasterTimeout specifies the timeout for connection to master.
+func (s *IndicesPutTemplateService) MasterTimeout(masterTimeout string) *IndicesPutTemplateService {
+	s.masterTimeout = masterTimeout
+	return s
+}
+
+// FlatSettings indicates whether to return settings in flat format (default: false).
+func (s *IndicesPutTemplateService) FlatSettings(flatSettings bool) *IndicesPutTemplateService {
+	s.flatSettings = &flatSettings
+	return s
+}
+
+// Order is the order for this template when merging multiple matching ones
+// (higher numbers are merged later, overriding the lower numbers).
+func (s *IndicesPutTemplateService) Order(order interface{}) *IndicesPutTemplateService {
+	s.order = order
+	return s
+}
+
+// Version sets the version number for this template.
+func (s *IndicesPutTemplateService) Version(version int) *IndicesPutTemplateService {
+	s.version = &version
+	return s
+}
+
+// Create indicates whether the index template should only be added if
+// new or can also replace an existing one.
+func (s *IndicesPutTemplateService) Create(create bool) *IndicesPutTemplateService {
+	s.create = &create
+	return s
+}
+
+// BodyJson is documented as: The template definition.
+func (s *IndicesPutTemplateService) BodyJson(body interface{}) *IndicesPutTemplateService {
+	s.bodyJson = body
+	return s
+}
+
+// BodyString is documented as: The template definition.
+func (s *IndicesPutTemplateService) BodyString(body string) *IndicesPutTemplateService {
+	s.bodyString = body
+	return s
+}
+
+// buildURL builds the URL for the operation.
+func (s *IndicesPutTemplateService) buildURL() (string, url.Values, error) {
+	// Build URL
+	path, err := uritemplates.Expand("/_template/{name}", map[string]string{
+		"name": s.name,
+	})
+	if err != nil {
+		return "", url.Values{}, err
+	}
+
+	// Add query string parameters
+	params := url.Values{}
+	if v := s.pretty; v != nil {
+		params.Set("pretty", fmt.Sprint(*v))
+	}
+	if v := s.human; v != nil {
+		params.Set("human", fmt.Sprint(*v))
+	}
+	if v := s.errorTrace; v != nil {
+		params.Set("error_trace", fmt.Sprint(*v))
+	}
+	if len(s.filterPath) > 0 {
+		params.Set("filter_path", strings.Join(s.filterPath, ","))
+	}
+	if s.order != nil {
+		params.Set("order", fmt.Sprintf("%v", s.order))
+	}
+	if s.version != nil {
+		params.Set("version", fmt.Sprintf("%v", *s.version))
+	}
+	if s.create != nil {
+		params.Set("create", fmt.Sprintf("%v", *s.create))
+	}
+	if s.cause != "" {
+		params.Set("cause", s.cause)
+	}
+	if s.timeout != "" {
+		params.Set("timeout", s.timeout)
+	}
+	if s.masterTimeout != "" {
+		params.Set("master_timeout", s.masterTimeout)
+	}
+	if s.flatSettings != nil {
+		params.Set("flat_settings", fmt.Sprintf("%v", *s.flatSettings))
+	}
+	return path, params, nil
+}
+
+// Validate checks if the operation is valid.
+func (s *IndicesPutTemplateService) Validate() error {
+	var invalid []string
+	if s.name == "" {
+		invalid = append(invalid, "Name")
+	}
+	if s.bodyString == "" && s.bodyJson == nil {
+		invalid = append(invalid, "BodyJson")
+	}
+	if len(invalid) > 0 {
+		return fmt.Errorf("missing required fields: %v", invalid)
+	}
+	return nil
+}
+
+// Do executes the operation.
+func (s *IndicesPutTemplateService) Do(ctx context.Context) (*IndicesPutTemplateResponse, error) {
+	// Check pre-conditions
+	if err := s.Validate(); err != nil {
+		return nil, err
+	}
+
+	// Get URL for request
+	path, params, err := s.buildURL()
+	if err != nil {
+		return nil, err
+	}
+
+	// Setup HTTP request body
+	var body interface{}
+	if s.bodyJson != nil {
+		body = s.bodyJson
+	} else {
+		body = s.bodyString
+	}
+
+	// Get HTTP response
+	res, err := s.client.PerformRequest(ctx, PerformRequestOptions{
+		Method:  "PUT",
+		Path:    path,
+		Params:  params,
+		Body:    body,
+		Headers: s.headers,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	// Return operation response
+	ret := new(IndicesPutTemplateResponse)
+	if err := s.client.decoder.Decode(res.Body, ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+}
+
+// IndicesPutTemplateResponse is the response of IndicesPutTemplateService.Do.
+type IndicesPutTemplateResponse struct {
+	Acknowledged       bool   `json:"acknowledged"`
+	ShardsAcknowledged bool   `json:"shards_acknowledged"`
+	Index              string `json:"index,omitempty"`
+}