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minio/vendor/gopkg.in/olivere/elastic.v3/search_request.go

178 lines
4.1 KiB

// Copyright 2012-2015 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 (
"fmt"
"strings"
)
// SearchRequest combines a search request and its
// query details (see SearchSource).
// It is used in combination with MultiSearch.
type SearchRequest struct {
searchType string // default in ES is "query_then_fetch"
indices []string
types []string
routing *string
preference *string
requestCache *bool
scroll string
source interface{}
}
// NewSearchRequest creates a new search request.
func NewSearchRequest() *SearchRequest {
return &SearchRequest{
indices: make([]string, 0),
types: make([]string, 0),
}
}
// SearchRequest must be one of "query_then_fetch", "query_and_fetch",
// "scan", "count", "dfs_query_then_fetch", or "dfs_query_and_fetch".
// Use one of the constants defined via SearchType.
func (r *SearchRequest) SearchType(searchType string) *SearchRequest {
r.searchType = searchType
return r
}
func (r *SearchRequest) SearchTypeDfsQueryThenFetch() *SearchRequest {
return r.SearchType("dfs_query_then_fetch")
}
func (r *SearchRequest) SearchTypeDfsQueryAndFetch() *SearchRequest {
return r.SearchType("dfs_query_and_fetch")
}
func (r *SearchRequest) SearchTypeQueryThenFetch() *SearchRequest {
return r.SearchType("query_then_fetch")
}
func (r *SearchRequest) SearchTypeQueryAndFetch() *SearchRequest {
return r.SearchType("query_and_fetch")
}
func (r *SearchRequest) SearchTypeScan() *SearchRequest {
return r.SearchType("scan")
}
func (r *SearchRequest) SearchTypeCount() *SearchRequest {
return r.SearchType("count")
}
func (r *SearchRequest) Index(indices ...string) *SearchRequest {
r.indices = append(r.indices, indices...)
return r
}
func (r *SearchRequest) HasIndices() bool {
return len(r.indices) > 0
}
func (r *SearchRequest) Type(types ...string) *SearchRequest {
r.types = append(r.types, types...)
return r
}
func (r *SearchRequest) Routing(routing string) *SearchRequest {
r.routing = &routing
return r
}
func (r *SearchRequest) Routings(routings ...string) *SearchRequest {
if routings != nil {
routings := strings.Join(routings, ",")
r.routing = &routings
} else {
r.routing = nil
}
return r
}
func (r *SearchRequest) Preference(preference string) *SearchRequest {
r.preference = &preference
return r
}
func (r *SearchRequest) RequestCache(requestCache bool) *SearchRequest {
r.requestCache = &requestCache
return r
}
func (r *SearchRequest) Scroll(scroll string) *SearchRequest {
r.scroll = scroll
return r
}
func (r *SearchRequest) SearchSource(searchSource *SearchSource) *SearchRequest {
return r.Source(searchSource)
}
func (r *SearchRequest) Source(source interface{}) *SearchRequest {
switch v := source.(type) {
case *SearchSource:
src, err := v.Source()
if err != nil {
// Do not do anything in case of an error
return r
}
r.source = src
default:
r.source = source
}
return r
}
// header is used e.g. by MultiSearch to get information about the search header
// of one SearchRequest.
// See http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-multi-search.html
func (r *SearchRequest) header() interface{} {
h := make(map[string]interface{})
if r.searchType != "" {
h["search_type"] = r.searchType
}
switch len(r.indices) {
case 0:
case 1:
h["index"] = r.indices[0]
default:
h["indices"] = r.indices
}
switch len(r.types) {
case 0:
case 1:
h["type"] = r.types[0]
default:
h["types"] = r.types
}
if r.routing != nil && *r.routing != "" {
h["routing"] = *r.routing
}
if r.preference != nil && *r.preference != "" {
h["preference"] = *r.preference
}
if r.requestCache != nil {
h["request_cache"] = fmt.Sprintf("%v", *r.requestCache)
}
if r.scroll != "" {
h["scroll"] = r.scroll
}
return h
}
// body is used by MultiSearch to get information about the search body
// of one SearchRequest.
// See http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-multi-search.html
func (r *SearchRequest) body() interface{} {
return r.source
}