Платформа ЦРНП "Мирокод" для разработки проектов
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377 lines
9.8 KiB
377 lines
9.8 KiB
// 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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"fmt" |
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"net/http" |
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"net/url" |
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"strings" |
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"github.com/olivere/elastic/v7/uritemplates" |
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) |
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// IndexService adds or updates a typed JSON document in a specified index, |
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// making it searchable. |
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// |
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// See https://www.elastic.co/guide/en/elasticsearch/reference/7.0/docs-index_.html |
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// for details. |
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type IndexService 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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id string |
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index string |
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typ string |
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parent string |
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routing string |
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timeout string |
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timestamp string |
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ttl string |
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version interface{} |
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opType string |
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versionType string |
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refresh string |
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waitForActiveShards string |
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pipeline string |
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ifSeqNo *int64 |
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ifPrimaryTerm *int64 |
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bodyJson interface{} |
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bodyString string |
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} |
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// NewIndexService creates a new IndexService. |
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func NewIndexService(client *Client) *IndexService { |
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return &IndexService{ |
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client: client, |
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typ: "_doc", |
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} |
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} |
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// Pretty tells Elasticsearch whether to return a formatted JSON response. |
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func (s *IndexService) Pretty(pretty bool) *IndexService { |
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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 *IndexService) Human(human bool) *IndexService { |
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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 *IndexService) ErrorTrace(errorTrace bool) *IndexService { |
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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 *IndexService) FilterPath(filterPath ...string) *IndexService { |
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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 *IndexService) Header(name string, value string) *IndexService { |
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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 *IndexService) Headers(headers http.Header) *IndexService { |
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s.headers = headers |
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return s |
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} |
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// Id is the document ID. |
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func (s *IndexService) Id(id string) *IndexService { |
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s.id = id |
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return s |
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} |
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// Index is the name of the index. |
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func (s *IndexService) Index(index string) *IndexService { |
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s.index = index |
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return s |
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} |
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// Type is the type of the document. |
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// |
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// Deprecated: Types are in the process of being removed. |
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func (s *IndexService) Type(typ string) *IndexService { |
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s.typ = typ |
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return s |
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} |
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// WaitForActiveShards sets the number of shard copies that must be active |
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// before proceeding with the index operation. Defaults to 1, meaning the |
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// primary shard only. Set to `all` for all shard copies, otherwise set to |
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// any non-negative value less than or equal to the total number of copies |
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// for the shard (number of replicas + 1). |
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func (s *IndexService) WaitForActiveShards(waitForActiveShards string) *IndexService { |
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s.waitForActiveShards = waitForActiveShards |
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return s |
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} |
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// Pipeline specifies the pipeline id to preprocess incoming documents with. |
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func (s *IndexService) Pipeline(pipeline string) *IndexService { |
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s.pipeline = pipeline |
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return s |
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} |
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// Refresh the index after performing the operation. |
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// |
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// See https://www.elastic.co/guide/en/elasticsearch/reference/7.0/docs-refresh.html |
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// for details. |
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func (s *IndexService) Refresh(refresh string) *IndexService { |
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s.refresh = refresh |
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return s |
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} |
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// Ttl is an expiration time for the document. |
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func (s *IndexService) Ttl(ttl string) *IndexService { |
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s.ttl = ttl |
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return s |
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} |
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// TTL is an expiration time for the document (alias for Ttl). |
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func (s *IndexService) TTL(ttl string) *IndexService { |
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s.ttl = ttl |
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return s |
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} |
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// Version is an explicit version number for concurrency control. |
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func (s *IndexService) Version(version interface{}) *IndexService { |
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s.version = version |
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return s |
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} |
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// OpType is an explicit operation type, i.e. "create" or "index" (default). |
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func (s *IndexService) OpType(opType string) *IndexService { |
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s.opType = opType |
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return s |
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} |
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// Parent is the ID of the parent document. |
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func (s *IndexService) Parent(parent string) *IndexService { |
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s.parent = parent |
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return s |
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} |
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// Routing is a specific routing value. |
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func (s *IndexService) Routing(routing string) *IndexService { |
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s.routing = routing |
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return s |
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} |
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// Timeout is an explicit operation timeout. |
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func (s *IndexService) Timeout(timeout string) *IndexService { |
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s.timeout = timeout |
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return s |
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} |
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// Timestamp is an explicit timestamp for the document. |
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func (s *IndexService) Timestamp(timestamp string) *IndexService { |
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s.timestamp = timestamp |
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return s |
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} |
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// VersionType is a specific version type. |
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func (s *IndexService) VersionType(versionType string) *IndexService { |
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s.versionType = versionType |
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return s |
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} |
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// IfSeqNo indicates to only perform the index operation if the last |
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// operation that has changed the document has the specified sequence number. |
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func (s *IndexService) IfSeqNo(seqNo int64) *IndexService { |
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s.ifSeqNo = &seqNo |
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return s |
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} |
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// IfPrimaryTerm indicates to only perform the index operation if the |
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// last operation that has changed the document has the specified primary term. |
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func (s *IndexService) IfPrimaryTerm(primaryTerm int64) *IndexService { |
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s.ifPrimaryTerm = &primaryTerm |
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return s |
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} |
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// BodyJson is the document as a serializable JSON interface. |
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func (s *IndexService) BodyJson(body interface{}) *IndexService { |
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s.bodyJson = body |
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return s |
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} |
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// BodyString is the document encoded as a string. |
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func (s *IndexService) BodyString(body string) *IndexService { |
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s.bodyString = body |
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return s |
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} |
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// buildURL builds the URL for the operation. |
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func (s *IndexService) buildURL() (string, string, url.Values, error) { |
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var err error |
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var method, path string |
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if s.id != "" { |
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// Create document with manual id |
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method = "PUT" |
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path, err = uritemplates.Expand("/{index}/{type}/{id}", map[string]string{ |
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"id": s.id, |
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"index": s.index, |
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"type": s.typ, |
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}) |
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} else { |
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// Automatic ID generation |
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// See https://www.elastic.co/guide/en/elasticsearch/reference/7.0/docs-index_.html#index-creation |
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method = "POST" |
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path, err = uritemplates.Expand("/{index}/{type}/", map[string]string{ |
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"index": s.index, |
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"type": s.typ, |
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}) |
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} |
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if err != nil { |
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return "", "", url.Values{}, err |
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} |
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// Add query string parameters |
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params := url.Values{} |
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if v := s.pretty; v != nil { |
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params.Set("pretty", fmt.Sprint(*v)) |
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} |
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if v := s.human; v != nil { |
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params.Set("human", fmt.Sprint(*v)) |
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} |
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if v := s.errorTrace; v != nil { |
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params.Set("error_trace", fmt.Sprint(*v)) |
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} |
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if len(s.filterPath) > 0 { |
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params.Set("filter_path", strings.Join(s.filterPath, ",")) |
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} |
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if s.waitForActiveShards != "" { |
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params.Set("wait_for_active_shards", s.waitForActiveShards) |
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} |
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if s.refresh != "" { |
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params.Set("refresh", s.refresh) |
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} |
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if s.opType != "" { |
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params.Set("op_type", s.opType) |
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} |
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if s.parent != "" { |
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params.Set("parent", s.parent) |
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} |
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if s.pipeline != "" { |
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params.Set("pipeline", s.pipeline) |
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} |
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if s.routing != "" { |
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params.Set("routing", s.routing) |
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} |
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if s.timeout != "" { |
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params.Set("timeout", s.timeout) |
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} |
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if s.timestamp != "" { |
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params.Set("timestamp", s.timestamp) |
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} |
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if s.ttl != "" { |
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params.Set("ttl", s.ttl) |
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} |
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if s.version != nil { |
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params.Set("version", fmt.Sprintf("%v", s.version)) |
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} |
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if s.versionType != "" { |
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params.Set("version_type", s.versionType) |
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} |
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if v := s.ifSeqNo; v != nil { |
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params.Set("if_seq_no", fmt.Sprintf("%d", *v)) |
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} |
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if v := s.ifPrimaryTerm; v != nil { |
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params.Set("if_primary_term", fmt.Sprintf("%d", *v)) |
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} |
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return method, path, params, nil |
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} |
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// Validate checks if the operation is valid. |
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func (s *IndexService) Validate() error { |
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var invalid []string |
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if s.index == "" { |
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invalid = append(invalid, "Index") |
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} |
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if s.typ == "" { |
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invalid = append(invalid, "Type") |
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} |
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if s.bodyString == "" && s.bodyJson == nil { |
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invalid = append(invalid, "BodyJson") |
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} |
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if len(invalid) > 0 { |
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return fmt.Errorf("missing required fields: %v", invalid) |
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} |
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return nil |
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} |
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// Do executes the operation. |
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func (s *IndexService) Do(ctx context.Context) (*IndexResponse, error) { |
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// Check pre-conditions |
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if err := s.Validate(); err != nil { |
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return nil, err |
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} |
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// Get URL for request |
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method, path, params, err := s.buildURL() |
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if err != nil { |
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return nil, err |
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} |
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// Setup HTTP request body |
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var body interface{} |
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if s.bodyJson != nil { |
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body = s.bodyJson |
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} else { |
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body = s.bodyString |
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} |
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// Get HTTP response |
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res, err := s.client.PerformRequest(ctx, PerformRequestOptions{ |
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Method: method, |
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Path: path, |
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Params: params, |
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Body: body, |
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Headers: s.headers, |
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}) |
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if err != nil { |
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return nil, err |
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} |
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// Return operation response |
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ret := new(IndexResponse) |
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if err := s.client.decoder.Decode(res.Body, ret); err != nil { |
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return nil, err |
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} |
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return ret, nil |
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} |
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// IndexResponse is the result of indexing a document in Elasticsearch. |
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type IndexResponse struct { |
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Index string `json:"_index,omitempty"` |
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Type string `json:"_type,omitempty"` |
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Id string `json:"_id,omitempty"` |
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Version int64 `json:"_version,omitempty"` |
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Result string `json:"result,omitempty"` |
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Shards *ShardsInfo `json:"_shards,omitempty"` |
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SeqNo int64 `json:"_seq_no,omitempty"` |
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PrimaryTerm int64 `json:"_primary_term,omitempty"` |
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Status int `json:"status,omitempty"` |
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ForcedRefresh bool `json:"forced_refresh,omitempty"` |
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}
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