bench-forgejo/vendor/github.com/olivere/elastic/v7/msearch.go
Lunny Xiao 5dbf36f356
Issue search support elasticsearch (#9428)
* Issue search support elasticsearch

* Fix lint

* Add indexer name on app.ini

* add a warnning on SearchIssuesByKeyword

* improve code
2020-02-13 14:06:17 +08:00

169 lines
4.4 KiB
Go

// 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"
"encoding/json"
"fmt"
"net/http"
"net/url"
"strings"
)
// MultiSearch executes one or more searches in one roundtrip.
type MultiSearchService 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
requests []*SearchRequest
indices []string
maxConcurrentRequests *int
preFilterShardSize *int
}
func NewMultiSearchService(client *Client) *MultiSearchService {
builder := &MultiSearchService{
client: client,
}
return builder
}
// Pretty tells Elasticsearch whether to return a formatted JSON response.
func (s *MultiSearchService) Pretty(pretty bool) *MultiSearchService {
s.pretty = &pretty
return s
}
// Human specifies whether human readable values should be returned in
// the JSON response, e.g. "7.5mb".
func (s *MultiSearchService) Human(human bool) *MultiSearchService {
s.human = &human
return s
}
// ErrorTrace specifies whether to include the stack trace of returned errors.
func (s *MultiSearchService) ErrorTrace(errorTrace bool) *MultiSearchService {
s.errorTrace = &errorTrace
return s
}
// FilterPath specifies a list of filters used to reduce the response.
func (s *MultiSearchService) FilterPath(filterPath ...string) *MultiSearchService {
s.filterPath = filterPath
return s
}
// Header adds a header to the request.
func (s *MultiSearchService) Header(name string, value string) *MultiSearchService {
if s.headers == nil {
s.headers = http.Header{}
}
s.headers.Add(name, value)
return s
}
// Headers specifies the headers of the request.
func (s *MultiSearchService) Headers(headers http.Header) *MultiSearchService {
s.headers = headers
return s
}
func (s *MultiSearchService) Add(requests ...*SearchRequest) *MultiSearchService {
s.requests = append(s.requests, requests...)
return s
}
func (s *MultiSearchService) Index(indices ...string) *MultiSearchService {
s.indices = append(s.indices, indices...)
return s
}
func (s *MultiSearchService) MaxConcurrentSearches(max int) *MultiSearchService {
s.maxConcurrentRequests = &max
return s
}
func (s *MultiSearchService) PreFilterShardSize(size int) *MultiSearchService {
s.preFilterShardSize = &size
return s
}
func (s *MultiSearchService) Do(ctx context.Context) (*MultiSearchResult, error) {
// Build url
path := "/_msearch"
// 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 v := s.maxConcurrentRequests; v != nil {
params.Set("max_concurrent_searches", fmt.Sprintf("%v", *v))
}
if v := s.preFilterShardSize; v != nil {
params.Set("pre_filter_shard_size", fmt.Sprintf("%v", *v))
}
// Set body
var lines []string
for _, sr := range s.requests {
// Set default indices if not specified in the request
if !sr.HasIndices() && len(s.indices) > 0 {
sr = sr.Index(s.indices...)
}
header, err := json.Marshal(sr.header())
if err != nil {
return nil, err
}
body, err := sr.Body()
if err != nil {
return nil, err
}
lines = append(lines, string(header))
lines = append(lines, body)
}
body := strings.Join(lines, "\n") + "\n" // add trailing \n
// Get response
res, err := s.client.PerformRequest(ctx, PerformRequestOptions{
Method: "GET",
Path: path,
Params: params,
Body: body,
Headers: s.headers,
})
if err != nil {
return nil, err
}
// Return result
ret := new(MultiSearchResult)
if err := s.client.decoder.Decode(res.Body, ret); err != nil {
return nil, err
}
return ret, nil
}
// MultiSearchResult is the outcome of running a multi-search operation.
type MultiSearchResult struct {
TookInMillis int64 `json:"took,omitempty"` // search time in milliseconds
Responses []*SearchResult `json:"responses,omitempty"`
}