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877 lines
32 KiB
Go
Vendored
877 lines
32 KiB
Go
Vendored
// Copyright 2012-present Oliver Eilhard. All rights reserved.
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// Use of this source code is governed by a MIT-license.
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// See http://olivere.mit-license.org/license.txt for details.
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package elastic
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import (
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"context"
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"encoding/json"
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"fmt"
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"net/http"
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"net/url"
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"reflect"
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"strings"
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"github.com/olivere/elastic/v7/uritemplates"
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)
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// Search for documents in Elasticsearch.
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type SearchService struct {
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client *Client
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pretty *bool // pretty format the returned JSON response
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human *bool // return human readable values for statistics
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errorTrace *bool // include the stack trace of returned errors
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filterPath []string // list of filters used to reduce the response
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headers http.Header // custom request-level HTTP headers
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searchSource *SearchSource // q
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source interface{}
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searchType string // search_type
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index []string
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typ []string
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routing string // routing
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preference string // preference
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requestCache *bool // request_cache
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ignoreUnavailable *bool // ignore_unavailable
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ignoreThrottled *bool // ignore_throttled
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allowNoIndices *bool // allow_no_indices
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expandWildcards string // expand_wildcards
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lenient *bool // lenient
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maxResponseSize int64
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allowPartialSearchResults *bool // allow_partial_search_results
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typedKeys *bool // typed_keys
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seqNoPrimaryTerm *bool // seq_no_primary_term
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batchedReduceSize *int // batched_reduce_size
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maxConcurrentShardRequests *int // max_concurrent_shard_requests
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preFilterShardSize *int // pre_filter_shard_size
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restTotalHitsAsInt *bool // rest_total_hits_as_int
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ccsMinimizeRoundtrips *bool // ccs_minimize_roundtrips
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}
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// NewSearchService creates a new service for searching in Elasticsearch.
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func NewSearchService(client *Client) *SearchService {
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builder := &SearchService{
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client: client,
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searchSource: NewSearchSource(),
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}
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return builder
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}
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// Pretty tells Elasticsearch whether to return a formatted JSON response.
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func (s *SearchService) Pretty(pretty bool) *SearchService {
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s.pretty = &pretty
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return s
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}
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// Human specifies whether human readable values should be returned in
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// the JSON response, e.g. "7.5mb".
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func (s *SearchService) Human(human bool) *SearchService {
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s.human = &human
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return s
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}
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// ErrorTrace specifies whether to include the stack trace of returned errors.
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func (s *SearchService) ErrorTrace(errorTrace bool) *SearchService {
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s.errorTrace = &errorTrace
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return s
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}
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// FilterPath specifies a list of filters used to reduce the response.
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func (s *SearchService) FilterPath(filterPath ...string) *SearchService {
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s.filterPath = filterPath
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return s
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}
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// Header adds a header to the request.
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func (s *SearchService) Header(name string, value string) *SearchService {
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if s.headers == nil {
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s.headers = http.Header{}
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}
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s.headers.Add(name, value)
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return s
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}
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// Headers specifies the headers of the request.
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func (s *SearchService) Headers(headers http.Header) *SearchService {
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s.headers = headers
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return s
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}
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// SearchSource sets the search source builder to use with this service.
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func (s *SearchService) SearchSource(searchSource *SearchSource) *SearchService {
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s.searchSource = searchSource
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if s.searchSource == nil {
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s.searchSource = NewSearchSource()
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}
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return s
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}
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// Source allows the user to set the request body manually without using
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// any of the structs and interfaces in Elastic.
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func (s *SearchService) Source(source interface{}) *SearchService {
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s.source = source
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return s
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}
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// Index sets the names of the indices to use for search.
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func (s *SearchService) Index(index ...string) *SearchService {
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s.index = append(s.index, index...)
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return s
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}
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// Type adds search restrictions for a list of types.
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//
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// Deprecated: Types are in the process of being removed. Instead of using a type, prefer to
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// filter on a field on the document.
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func (s *SearchService) Type(typ ...string) *SearchService {
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s.typ = append(s.typ, typ...)
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return s
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}
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// Timeout sets the timeout to use, e.g. "1s" or "1000ms".
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func (s *SearchService) Timeout(timeout string) *SearchService {
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s.searchSource = s.searchSource.Timeout(timeout)
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return s
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}
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// Profile sets the Profile API flag on the search source.
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// When enabled, a search executed by this service will return query
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// profiling data.
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func (s *SearchService) Profile(profile bool) *SearchService {
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s.searchSource = s.searchSource.Profile(profile)
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return s
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}
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// Collapse adds field collapsing.
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func (s *SearchService) Collapse(collapse *CollapseBuilder) *SearchService {
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s.searchSource = s.searchSource.Collapse(collapse)
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return s
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}
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// PointInTime specifies an optional PointInTime to be used in the context
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// of this search.
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func (s *SearchService) PointInTime(pointInTime *PointInTime) *SearchService {
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s.searchSource = s.searchSource.PointInTime(pointInTime)
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return s
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}
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// TimeoutInMillis sets the timeout in milliseconds.
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func (s *SearchService) TimeoutInMillis(timeoutInMillis int) *SearchService {
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s.searchSource = s.searchSource.TimeoutInMillis(timeoutInMillis)
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return s
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}
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// TerminateAfter specifies the maximum number of documents to collect for
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// each shard, upon reaching which the query execution will terminate early.
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func (s *SearchService) TerminateAfter(terminateAfter int) *SearchService {
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s.searchSource = s.searchSource.TerminateAfter(terminateAfter)
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return s
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}
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// SearchType sets the search operation type. Valid values are:
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// "dfs_query_then_fetch" and "query_then_fetch".
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// See https://www.elastic.co/guide/en/elasticsearch/reference/7.0/search-request-search-type.html
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// for details.
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func (s *SearchService) SearchType(searchType string) *SearchService {
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s.searchType = searchType
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return s
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}
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// Routing is a list of specific routing values to control the shards
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// the search will be executed on.
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func (s *SearchService) Routing(routings ...string) *SearchService {
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s.routing = strings.Join(routings, ",")
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return s
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}
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// Preference sets the preference to execute the search. Defaults to
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// randomize across shards ("random"). Can be set to "_local" to prefer
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// local shards, "_primary" to execute on primary shards only,
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// or a custom value which guarantees that the same order will be used
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// across different requests.
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func (s *SearchService) Preference(preference string) *SearchService {
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s.preference = preference
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return s
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}
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// RequestCache indicates whether the cache should be used for this
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// request or not, defaults to index level setting.
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func (s *SearchService) RequestCache(requestCache bool) *SearchService {
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s.requestCache = &requestCache
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return s
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}
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// Query sets the query to perform, e.g. MatchAllQuery.
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func (s *SearchService) Query(query Query) *SearchService {
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s.searchSource = s.searchSource.Query(query)
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return s
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}
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// PostFilter will be executed after the query has been executed and
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// only affects the search hits, not the aggregations.
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// This filter is always executed as the last filtering mechanism.
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func (s *SearchService) PostFilter(postFilter Query) *SearchService {
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s.searchSource = s.searchSource.PostFilter(postFilter)
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return s
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}
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// FetchSource indicates whether the response should contain the stored
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// _source for every hit.
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func (s *SearchService) FetchSource(fetchSource bool) *SearchService {
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s.searchSource = s.searchSource.FetchSource(fetchSource)
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return s
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}
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// FetchSourceContext indicates how the _source should be fetched.
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func (s *SearchService) FetchSourceContext(fetchSourceContext *FetchSourceContext) *SearchService {
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s.searchSource = s.searchSource.FetchSourceContext(fetchSourceContext)
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return s
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}
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// Highlight adds highlighting to the search.
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func (s *SearchService) Highlight(highlight *Highlight) *SearchService {
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s.searchSource = s.searchSource.Highlight(highlight)
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return s
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}
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// GlobalSuggestText defines the global text to use with all suggesters.
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// This avoids repetition.
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func (s *SearchService) GlobalSuggestText(globalText string) *SearchService {
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s.searchSource = s.searchSource.GlobalSuggestText(globalText)
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return s
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}
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// Suggester adds a suggester to the search.
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func (s *SearchService) Suggester(suggester Suggester) *SearchService {
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s.searchSource = s.searchSource.Suggester(suggester)
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return s
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}
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// Aggregation adds an aggreation to perform as part of the search.
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func (s *SearchService) Aggregation(name string, aggregation Aggregation) *SearchService {
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s.searchSource = s.searchSource.Aggregation(name, aggregation)
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return s
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}
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// MinScore sets the minimum score below which docs will be filtered out.
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func (s *SearchService) MinScore(minScore float64) *SearchService {
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s.searchSource = s.searchSource.MinScore(minScore)
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return s
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}
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// From index to start the search from. Defaults to 0.
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func (s *SearchService) From(from int) *SearchService {
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s.searchSource = s.searchSource.From(from)
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return s
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}
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// Size is the number of search hits to return. Defaults to 10.
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func (s *SearchService) Size(size int) *SearchService {
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s.searchSource = s.searchSource.Size(size)
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return s
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}
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// Explain indicates whether each search hit should be returned with
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// an explanation of the hit (ranking).
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func (s *SearchService) Explain(explain bool) *SearchService {
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s.searchSource = s.searchSource.Explain(explain)
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return s
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}
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// Version indicates whether each search hit should be returned with
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// a version associated to it.
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func (s *SearchService) Version(version bool) *SearchService {
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s.searchSource = s.searchSource.Version(version)
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return s
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}
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// Sort adds a sort order.
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func (s *SearchService) Sort(field string, ascending bool) *SearchService {
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s.searchSource = s.searchSource.Sort(field, ascending)
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return s
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}
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// SortWithInfo adds a sort order.
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func (s *SearchService) SortWithInfo(info SortInfo) *SearchService {
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s.searchSource = s.searchSource.SortWithInfo(info)
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return s
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}
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// SortBy adds a sort order.
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func (s *SearchService) SortBy(sorter ...Sorter) *SearchService {
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s.searchSource = s.searchSource.SortBy(sorter...)
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return s
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}
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// DocvalueField adds a single field to load from the field data cache
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// and return as part of the search.
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func (s *SearchService) DocvalueField(docvalueField string) *SearchService {
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s.searchSource = s.searchSource.DocvalueField(docvalueField)
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return s
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}
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// DocvalueFieldWithFormat adds a single field to load from the field data cache
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// and return as part of the search.
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func (s *SearchService) DocvalueFieldWithFormat(docvalueField DocvalueField) *SearchService {
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s.searchSource = s.searchSource.DocvalueFieldWithFormat(docvalueField)
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return s
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}
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// DocvalueFields adds one or more fields to load from the field data cache
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// and return as part of the search.
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func (s *SearchService) DocvalueFields(docvalueFields ...string) *SearchService {
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s.searchSource = s.searchSource.DocvalueFields(docvalueFields...)
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return s
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}
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// DocvalueFieldsWithFormat adds one or more fields to load from the field data cache
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// and return as part of the search.
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func (s *SearchService) DocvalueFieldsWithFormat(docvalueFields ...DocvalueField) *SearchService {
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s.searchSource = s.searchSource.DocvalueFieldsWithFormat(docvalueFields...)
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return s
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}
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// NoStoredFields indicates that no stored fields should be loaded, resulting in only
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// id and type to be returned per field.
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func (s *SearchService) NoStoredFields() *SearchService {
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s.searchSource = s.searchSource.NoStoredFields()
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return s
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}
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// StoredField adds a single field to load and return (note, must be stored) as
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// part of the search request. If none are specified, the source of the
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// document will be returned.
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func (s *SearchService) StoredField(fieldName string) *SearchService {
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s.searchSource = s.searchSource.StoredField(fieldName)
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return s
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}
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// StoredFields sets the fields to load and return as part of the search request.
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// If none are specified, the source of the document will be returned.
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func (s *SearchService) StoredFields(fields ...string) *SearchService {
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s.searchSource = s.searchSource.StoredFields(fields...)
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return s
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}
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// TrackScores is applied when sorting and controls if scores will be
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// tracked as well. Defaults to false.
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func (s *SearchService) TrackScores(trackScores bool) *SearchService {
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s.searchSource = s.searchSource.TrackScores(trackScores)
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return s
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}
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// TrackTotalHits controls if the total hit count for the query should be tracked.
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//
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// See https://www.elastic.co/guide/en/elasticsearch/reference/7.1/search-request-track-total-hits.html
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// for details.
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func (s *SearchService) TrackTotalHits(trackTotalHits interface{}) *SearchService {
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s.searchSource = s.searchSource.TrackTotalHits(trackTotalHits)
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return s
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}
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// SearchAfter allows a different form of pagination by using a live cursor,
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// using the results of the previous page to help the retrieval of the next.
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//
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// See https://www.elastic.co/guide/en/elasticsearch/reference/7.0/search-request-search-after.html
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func (s *SearchService) SearchAfter(sortValues ...interface{}) *SearchService {
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s.searchSource = s.searchSource.SearchAfter(sortValues...)
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return s
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}
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// DefaultRescoreWindowSize sets the rescore window size for rescores
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// that don't specify their window.
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func (s *SearchService) DefaultRescoreWindowSize(defaultRescoreWindowSize int) *SearchService {
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s.searchSource = s.searchSource.DefaultRescoreWindowSize(defaultRescoreWindowSize)
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return s
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}
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// Rescorer adds a rescorer to the search.
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func (s *SearchService) Rescorer(rescore *Rescore) *SearchService {
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s.searchSource = s.searchSource.Rescorer(rescore)
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return s
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}
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// IgnoreUnavailable indicates whether the specified concrete indices
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// should be ignored when unavailable (missing or closed).
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func (s *SearchService) IgnoreUnavailable(ignoreUnavailable bool) *SearchService {
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s.ignoreUnavailable = &ignoreUnavailable
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return s
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}
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// IgnoreThrottled indicates whether specified concrete, expanded or aliased
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// indices should be ignored when throttled.
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func (s *SearchService) IgnoreThrottled(ignoreThrottled bool) *SearchService {
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s.ignoreThrottled = &ignoreThrottled
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return s
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}
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// AllowNoIndices indicates whether to ignore if a wildcard indices
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// expression resolves into no concrete indices. (This includes `_all` string
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// or when no indices have been specified).
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func (s *SearchService) AllowNoIndices(allowNoIndices bool) *SearchService {
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s.allowNoIndices = &allowNoIndices
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return s
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}
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// ExpandWildcards indicates whether to expand wildcard expression to
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// concrete indices that are open, closed or both.
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func (s *SearchService) ExpandWildcards(expandWildcards string) *SearchService {
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s.expandWildcards = expandWildcards
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return s
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}
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// Lenient specifies whether format-based query failures (such as providing
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// text to a numeric field) should be ignored.
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func (s *SearchService) Lenient(lenient bool) *SearchService {
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s.lenient = &lenient
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return s
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}
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// MaxResponseSize sets an upper limit on the response body size that we accept,
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// to guard against OOM situations.
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func (s *SearchService) MaxResponseSize(maxResponseSize int64) *SearchService {
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s.maxResponseSize = maxResponseSize
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return s
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}
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// AllowPartialSearchResults indicates if an error should be returned if
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// there is a partial search failure or timeout.
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func (s *SearchService) AllowPartialSearchResults(enabled bool) *SearchService {
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s.allowPartialSearchResults = &enabled
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return s
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}
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// TypedKeys specifies whether aggregation and suggester names should be
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// prefixed by their respective types in the response.
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func (s *SearchService) TypedKeys(enabled bool) *SearchService {
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s.typedKeys = &enabled
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return s
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}
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// SeqNoPrimaryTerm specifies whether to return sequence number and
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// primary term of the last modification of each hit.
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func (s *SearchService) SeqNoPrimaryTerm(enabled bool) *SearchService {
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s.seqNoPrimaryTerm = &enabled
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return s
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}
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// BatchedReduceSize specifies the number of shard results that should be reduced
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// at once on the coordinating node. This value should be used as a protection
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// mechanism to reduce the memory overhead per search request if the potential
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// number of shards in the request can be large.
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func (s *SearchService) BatchedReduceSize(size int) *SearchService {
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s.batchedReduceSize = &size
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return s
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}
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// MaxConcurrentShardRequests specifies the number of concurrent shard requests
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// this search executes concurrently. This value should be used to limit the
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// impact of the search on the cluster in order to limit the number of
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// concurrent shard requests.
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func (s *SearchService) MaxConcurrentShardRequests(max int) *SearchService {
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s.maxConcurrentShardRequests = &max
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return s
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}
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// PreFilterShardSize specifies a threshold that enforces a pre-filter roundtrip
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// to prefilter search shards based on query rewriting if the number of shards
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// the search request expands to exceeds the threshold. This filter roundtrip
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// can limit the number of shards significantly if for instance a shard can
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// not match any documents based on it's rewrite method i.e. if date filters are
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|
// mandatory to match but the shard bounds and the query are disjoint.
|
|
func (s *SearchService) PreFilterShardSize(threshold int) *SearchService {
|
|
s.preFilterShardSize = &threshold
|
|
return s
|
|
}
|
|
|
|
// RestTotalHitsAsInt indicates whether hits.total should be rendered as an
|
|
// integer or an object in the rest search response.
|
|
func (s *SearchService) RestTotalHitsAsInt(enabled bool) *SearchService {
|
|
s.restTotalHitsAsInt = &enabled
|
|
return s
|
|
}
|
|
|
|
// CCSMinimizeRoundtrips indicates whether network round-trips should be minimized
|
|
// as part of cross-cluster search requests execution.
|
|
func (s *SearchService) CCSMinimizeRoundtrips(enabled bool) *SearchService {
|
|
s.ccsMinimizeRoundtrips = &enabled
|
|
return s
|
|
}
|
|
|
|
// buildURL builds the URL for the operation.
|
|
func (s *SearchService) buildURL() (string, url.Values, error) {
|
|
var err error
|
|
var path string
|
|
|
|
if len(s.index) > 0 && len(s.typ) > 0 {
|
|
path, err = uritemplates.Expand("/{index}/{type}/_search", map[string]string{
|
|
"index": strings.Join(s.index, ","),
|
|
"type": strings.Join(s.typ, ","),
|
|
})
|
|
} else if len(s.index) > 0 {
|
|
path, err = uritemplates.Expand("/{index}/_search", map[string]string{
|
|
"index": strings.Join(s.index, ","),
|
|
})
|
|
} else if len(s.typ) > 0 {
|
|
path, err = uritemplates.Expand("/_all/{type}/_search", map[string]string{
|
|
"type": strings.Join(s.typ, ","),
|
|
})
|
|
} else {
|
|
path = "/_search"
|
|
}
|
|
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.searchType != "" {
|
|
params.Set("search_type", s.searchType)
|
|
}
|
|
if s.routing != "" {
|
|
params.Set("routing", s.routing)
|
|
}
|
|
if s.preference != "" {
|
|
params.Set("preference", s.preference)
|
|
}
|
|
if v := s.requestCache; v != nil {
|
|
params.Set("request_cache", fmt.Sprint(*v))
|
|
}
|
|
if v := s.allowNoIndices; v != nil {
|
|
params.Set("allow_no_indices", fmt.Sprint(*v))
|
|
}
|
|
if s.expandWildcards != "" {
|
|
params.Set("expand_wildcards", s.expandWildcards)
|
|
}
|
|
if v := s.lenient; v != nil {
|
|
params.Set("lenient", fmt.Sprint(*v))
|
|
}
|
|
if v := s.ignoreUnavailable; v != nil {
|
|
params.Set("ignore_unavailable", fmt.Sprint(*v))
|
|
}
|
|
if v := s.ignoreThrottled; v != nil {
|
|
params.Set("ignore_throttled", fmt.Sprint(*v))
|
|
}
|
|
if s.seqNoPrimaryTerm != nil {
|
|
params.Set("seq_no_primary_term", fmt.Sprint(*s.seqNoPrimaryTerm))
|
|
}
|
|
if v := s.allowPartialSearchResults; v != nil {
|
|
params.Set("allow_partial_search_results", fmt.Sprint(*v))
|
|
}
|
|
if v := s.typedKeys; v != nil {
|
|
params.Set("typed_keys", fmt.Sprint(*v))
|
|
}
|
|
if v := s.batchedReduceSize; v != nil {
|
|
params.Set("batched_reduce_size", fmt.Sprint(*v))
|
|
}
|
|
if v := s.maxConcurrentShardRequests; v != nil {
|
|
params.Set("max_concurrent_shard_requests", fmt.Sprint(*v))
|
|
}
|
|
if v := s.preFilterShardSize; v != nil {
|
|
params.Set("pre_filter_shard_size", fmt.Sprint(*v))
|
|
}
|
|
if v := s.restTotalHitsAsInt; v != nil {
|
|
params.Set("rest_total_hits_as_int", fmt.Sprint(*v))
|
|
}
|
|
if v := s.ccsMinimizeRoundtrips; v != nil {
|
|
params.Set("ccs_minimize_roundtrips", fmt.Sprint(*v))
|
|
}
|
|
return path, params, nil
|
|
}
|
|
|
|
// Validate checks if the operation is valid.
|
|
func (s *SearchService) Validate() error {
|
|
return nil
|
|
}
|
|
|
|
// Do executes the search and returns a SearchResult.
|
|
func (s *SearchService) Do(ctx context.Context) (*SearchResult, 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
|
|
}
|
|
|
|
// Perform request
|
|
var body interface{}
|
|
if s.source != nil {
|
|
body = s.source
|
|
} else {
|
|
src, err := s.searchSource.Source()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
body = src
|
|
}
|
|
res, err := s.client.PerformRequest(ctx, PerformRequestOptions{
|
|
Method: "POST",
|
|
Path: path,
|
|
Params: params,
|
|
Body: body,
|
|
Headers: s.headers,
|
|
MaxResponseSize: s.maxResponseSize,
|
|
})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Return search results
|
|
ret := new(SearchResult)
|
|
if err := s.client.decoder.Decode(res.Body, ret); err != nil {
|
|
ret.Header = res.Header
|
|
return nil, err
|
|
}
|
|
ret.Header = res.Header
|
|
return ret, nil
|
|
}
|
|
|
|
// SearchResult is the result of a search in Elasticsearch.
|
|
type SearchResult struct {
|
|
Header http.Header `json:"-"`
|
|
TookInMillis int64 `json:"took,omitempty"` // search time in milliseconds
|
|
TerminatedEarly bool `json:"terminated_early,omitempty"` // request terminated early
|
|
NumReducePhases int `json:"num_reduce_phases,omitempty"`
|
|
Clusters *SearchResultCluster `json:"_clusters,omitempty"` // 6.1.0+
|
|
ScrollId string `json:"_scroll_id,omitempty"` // only used with Scroll and Scan operations
|
|
Hits *SearchHits `json:"hits,omitempty"` // the actual search hits
|
|
Suggest SearchSuggest `json:"suggest,omitempty"` // results from suggesters
|
|
Aggregations Aggregations `json:"aggregations,omitempty"` // results from aggregations
|
|
TimedOut bool `json:"timed_out,omitempty"` // true if the search timed out
|
|
Error *ErrorDetails `json:"error,omitempty"` // only used in MultiGet
|
|
Profile *SearchProfile `json:"profile,omitempty"` // profiling results, if optional Profile API was active for this search
|
|
Shards *ShardsInfo `json:"_shards,omitempty"` // shard information
|
|
Status int `json:"status,omitempty"` // used in MultiSearch
|
|
PitId string `json:"pit_id,omitempty"` // Point In Time ID
|
|
}
|
|
|
|
// SearchResultCluster holds information about a search response
|
|
// from a cluster.
|
|
type SearchResultCluster struct {
|
|
Successful int `json:"successful,omitempty"`
|
|
Total int `json:"total,omitempty"`
|
|
Skipped int `json:"skipped,omitempty"`
|
|
}
|
|
|
|
// TotalHits is a convenience function to return the number of hits for
|
|
// a search result. The return value might not be accurate, unless
|
|
// track_total_hits parameter has set to true.
|
|
func (r *SearchResult) TotalHits() int64 {
|
|
if r != nil && r.Hits != nil && r.Hits.TotalHits != nil {
|
|
return r.Hits.TotalHits.Value
|
|
}
|
|
return 0
|
|
}
|
|
|
|
// Each is a utility function to iterate over all hits. It saves you from
|
|
// checking for nil values. Notice that Each will ignore errors in
|
|
// serializing JSON and hits with empty/nil _source will get an empty
|
|
// value
|
|
func (r *SearchResult) Each(typ reflect.Type) []interface{} {
|
|
if r.Hits == nil || r.Hits.Hits == nil || len(r.Hits.Hits) == 0 {
|
|
return nil
|
|
}
|
|
slice := make([]interface{}, 0, len(r.Hits.Hits))
|
|
for _, hit := range r.Hits.Hits {
|
|
v := reflect.New(typ).Elem()
|
|
if hit.Source == nil {
|
|
slice = append(slice, v.Interface())
|
|
continue
|
|
}
|
|
if err := json.Unmarshal(hit.Source, v.Addr().Interface()); err == nil {
|
|
slice = append(slice, v.Interface())
|
|
}
|
|
}
|
|
return slice
|
|
}
|
|
|
|
// SearchHits specifies the list of search hits.
|
|
type SearchHits struct {
|
|
TotalHits *TotalHits `json:"total,omitempty"` // total number of hits found
|
|
MaxScore *float64 `json:"max_score,omitempty"` // maximum score of all hits
|
|
Hits []*SearchHit `json:"hits,omitempty"` // the actual hits returned
|
|
}
|
|
|
|
// NestedHit is a nested innerhit
|
|
type NestedHit struct {
|
|
Field string `json:"field"`
|
|
Offset int `json:"offset,omitempty"`
|
|
Child *NestedHit `json:"_nested,omitempty"`
|
|
}
|
|
|
|
// TotalHits specifies total number of hits and its relation
|
|
type TotalHits struct {
|
|
Value int64 `json:"value"` // value of the total hit count
|
|
Relation string `json:"relation"` // how the value should be interpreted: accurate ("eq") or a lower bound ("gte")
|
|
}
|
|
|
|
// UnmarshalJSON into TotalHits, accepting both the new response structure
|
|
// in ES 7.x as well as the older response structure in earlier versions.
|
|
// The latter can be enabled with RestTotalHitsAsInt(true).
|
|
func (h *TotalHits) UnmarshalJSON(data []byte) error {
|
|
if data == nil || string(data) == "null" {
|
|
return nil
|
|
}
|
|
var v struct {
|
|
Value int64 `json:"value"` // value of the total hit count
|
|
Relation string `json:"relation"` // how the value should be interpreted: accurate ("eq") or a lower bound ("gte")
|
|
}
|
|
if err := json.Unmarshal(data, &v); err != nil {
|
|
var count int64
|
|
if err2 := json.Unmarshal(data, &count); err2 != nil {
|
|
return err // return inner error
|
|
}
|
|
h.Value = count
|
|
h.Relation = "eq"
|
|
return nil
|
|
}
|
|
*h = v
|
|
return nil
|
|
}
|
|
|
|
// SearchHit is a single hit.
|
|
type SearchHit struct {
|
|
Score *float64 `json:"_score,omitempty"` // computed score
|
|
Index string `json:"_index,omitempty"` // index name
|
|
Type string `json:"_type,omitempty"` // type meta field
|
|
Id string `json:"_id,omitempty"` // external or internal
|
|
Uid string `json:"_uid,omitempty"` // uid meta field (see MapperService.java for all meta fields)
|
|
Routing string `json:"_routing,omitempty"` // routing meta field
|
|
Parent string `json:"_parent,omitempty"` // parent meta field
|
|
Version *int64 `json:"_version,omitempty"` // version number, when Version is set to true in SearchService
|
|
SeqNo *int64 `json:"_seq_no"`
|
|
PrimaryTerm *int64 `json:"_primary_term"`
|
|
Sort []interface{} `json:"sort,omitempty"` // sort information
|
|
Highlight SearchHitHighlight `json:"highlight,omitempty"` // highlighter information
|
|
Source json.RawMessage `json:"_source,omitempty"` // stored document source
|
|
Fields map[string]interface{} `json:"fields,omitempty"` // returned (stored) fields
|
|
Explanation *SearchExplanation `json:"_explanation,omitempty"` // explains how the score was computed
|
|
MatchedQueries []string `json:"matched_queries,omitempty"` // matched queries
|
|
InnerHits map[string]*SearchHitInnerHits `json:"inner_hits,omitempty"` // inner hits with ES >= 1.5.0
|
|
Nested *NestedHit `json:"_nested,omitempty"` // for nested inner hits
|
|
Shard string `json:"_shard,omitempty"` // used e.g. in Search Explain
|
|
Node string `json:"_node,omitempty"` // used e.g. in Search Explain
|
|
|
|
// HighlightFields
|
|
// SortValues
|
|
// MatchedFilters
|
|
}
|
|
|
|
// SearchHitInnerHits is used for inner hits.
|
|
type SearchHitInnerHits struct {
|
|
Hits *SearchHits `json:"hits,omitempty"`
|
|
}
|
|
|
|
// SearchExplanation explains how the score for a hit was computed.
|
|
// See https://www.elastic.co/guide/en/elasticsearch/reference/7.0/search-request-explain.html.
|
|
type SearchExplanation struct {
|
|
Value float64 `json:"value"` // e.g. 1.0
|
|
Description string `json:"description"` // e.g. "boost" or "ConstantScore(*:*), product of:"
|
|
Details []SearchExplanation `json:"details,omitempty"` // recursive details
|
|
}
|
|
|
|
// Suggest
|
|
|
|
// SearchSuggest is a map of suggestions.
|
|
// See https://www.elastic.co/guide/en/elasticsearch/reference/7.0/search-suggesters.html.
|
|
type SearchSuggest map[string][]SearchSuggestion
|
|
|
|
// SearchSuggestion is a single search suggestion.
|
|
// See https://www.elastic.co/guide/en/elasticsearch/reference/7.0/search-suggesters.html.
|
|
type SearchSuggestion struct {
|
|
Text string `json:"text"`
|
|
Offset int `json:"offset"`
|
|
Length int `json:"length"`
|
|
Options []SearchSuggestionOption `json:"options"`
|
|
}
|
|
|
|
// SearchSuggestionOption is an option of a SearchSuggestion.
|
|
// See https://www.elastic.co/guide/en/elasticsearch/reference/7.0/search-suggesters.html.
|
|
type SearchSuggestionOption struct {
|
|
Text string `json:"text"`
|
|
Index string `json:"_index"`
|
|
Type string `json:"_type"`
|
|
Id string `json:"_id"`
|
|
Score float64 `json:"score"` // term and phrase suggesters uses "score" as of 6.2.4
|
|
ScoreUnderscore float64 `json:"_score"` // completion and context suggesters uses "_score" as of 6.2.4
|
|
Highlighted string `json:"highlighted"`
|
|
CollateMatch bool `json:"collate_match"`
|
|
Freq int `json:"freq"` // from TermSuggestion.Option in Java API
|
|
Source json.RawMessage `json:"_source"`
|
|
Contexts map[string][]string `json:"contexts,omitempty"`
|
|
}
|
|
|
|
// SearchProfile is a list of shard profiling data collected during
|
|
// query execution in the "profile" section of a SearchResult
|
|
type SearchProfile struct {
|
|
Shards []SearchProfileShardResult `json:"shards"`
|
|
}
|
|
|
|
// SearchProfileShardResult returns the profiling data for a single shard
|
|
// accessed during the search query or aggregation.
|
|
type SearchProfileShardResult struct {
|
|
ID string `json:"id"`
|
|
Searches []QueryProfileShardResult `json:"searches"`
|
|
Aggregations []ProfileResult `json:"aggregations"`
|
|
}
|
|
|
|
// QueryProfileShardResult is a container class to hold the profile results
|
|
// for a single shard in the request. It comtains a list of query profiles,
|
|
// a collector tree and a total rewrite tree.
|
|
type QueryProfileShardResult struct {
|
|
Query []ProfileResult `json:"query,omitempty"`
|
|
RewriteTime int64 `json:"rewrite_time,omitempty"`
|
|
Collector []interface{} `json:"collector,omitempty"`
|
|
}
|
|
|
|
// CollectorResult holds the profile timings of the collectors used in the
|
|
// search. Children's CollectorResults may be embedded inside of a parent
|
|
// CollectorResult.
|
|
type CollectorResult struct {
|
|
Name string `json:"name,omitempty"`
|
|
Reason string `json:"reason,omitempty"`
|
|
Time string `json:"time,omitempty"`
|
|
TimeNanos int64 `json:"time_in_nanos,omitempty"`
|
|
Children []CollectorResult `json:"children,omitempty"`
|
|
}
|
|
|
|
// ProfileResult is the internal representation of a profiled query,
|
|
// corresponding to a single node in the query tree.
|
|
type ProfileResult struct {
|
|
Type string `json:"type"`
|
|
Description string `json:"description,omitempty"`
|
|
NodeTime string `json:"time,omitempty"`
|
|
NodeTimeNanos int64 `json:"time_in_nanos,omitempty"`
|
|
Breakdown map[string]int64 `json:"breakdown,omitempty"`
|
|
Children []ProfileResult `json:"children,omitempty"`
|
|
}
|
|
|
|
// Aggregations (see search_aggs.go)
|
|
|
|
// Highlighting
|
|
|
|
// SearchHitHighlight is the highlight information of a search hit.
|
|
// See https://www.elastic.co/guide/en/elasticsearch/reference/7.0/search-request-highlighting.html
|
|
// for a general discussion of highlighting.
|
|
type SearchHitHighlight map[string][]string
|