mirror of
https://github.com/go-gitea/gitea.git
synced 2024-11-30 05:07:06 +08:00
5dbf36f356
* Issue search support elasticsearch * Fix lint * Add indexer name on app.ini * add a warnning on SearchIssuesByKeyword * improve code
321 lines
9.3 KiB
Go
Vendored
321 lines
9.3 KiB
Go
Vendored
// 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"
|
|
)
|
|
|
|
// IndicesAnalyzeService performs the analysis process on a text and returns
|
|
// the tokens breakdown of the text.
|
|
//
|
|
// See https://www.elastic.co/guide/en/elasticsearch/reference/7.0/indices-analyze.html
|
|
// for detail.
|
|
type IndicesAnalyzeService 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
|
|
|
|
index string
|
|
request *IndicesAnalyzeRequest
|
|
format string
|
|
preferLocal *bool
|
|
bodyJson interface{}
|
|
bodyString string
|
|
}
|
|
|
|
// NewIndicesAnalyzeService creates a new IndicesAnalyzeService.
|
|
func NewIndicesAnalyzeService(client *Client) *IndicesAnalyzeService {
|
|
return &IndicesAnalyzeService{
|
|
client: client,
|
|
request: new(IndicesAnalyzeRequest),
|
|
}
|
|
}
|
|
|
|
// Pretty tells Elasticsearch whether to return a formatted JSON response.
|
|
func (s *IndicesAnalyzeService) Pretty(pretty bool) *IndicesAnalyzeService {
|
|
s.pretty = &pretty
|
|
return s
|
|
}
|
|
|
|
// Human specifies whether human readable values should be returned in
|
|
// the JSON response, e.g. "7.5mb".
|
|
func (s *IndicesAnalyzeService) Human(human bool) *IndicesAnalyzeService {
|
|
s.human = &human
|
|
return s
|
|
}
|
|
|
|
// ErrorTrace specifies whether to include the stack trace of returned errors.
|
|
func (s *IndicesAnalyzeService) ErrorTrace(errorTrace bool) *IndicesAnalyzeService {
|
|
s.errorTrace = &errorTrace
|
|
return s
|
|
}
|
|
|
|
// FilterPath specifies a list of filters used to reduce the response.
|
|
func (s *IndicesAnalyzeService) FilterPath(filterPath ...string) *IndicesAnalyzeService {
|
|
s.filterPath = filterPath
|
|
return s
|
|
}
|
|
|
|
// Header adds a header to the request.
|
|
func (s *IndicesAnalyzeService) Header(name string, value string) *IndicesAnalyzeService {
|
|
if s.headers == nil {
|
|
s.headers = http.Header{}
|
|
}
|
|
s.headers.Add(name, value)
|
|
return s
|
|
}
|
|
|
|
// Headers specifies the headers of the request.
|
|
func (s *IndicesAnalyzeService) Headers(headers http.Header) *IndicesAnalyzeService {
|
|
s.headers = headers
|
|
return s
|
|
}
|
|
|
|
// Index is the name of the index to scope the operation.
|
|
func (s *IndicesAnalyzeService) Index(index string) *IndicesAnalyzeService {
|
|
s.index = index
|
|
return s
|
|
}
|
|
|
|
// Format of the output.
|
|
func (s *IndicesAnalyzeService) Format(format string) *IndicesAnalyzeService {
|
|
s.format = format
|
|
return s
|
|
}
|
|
|
|
// PreferLocal, when true, specifies that a local shard should be used
|
|
// if available. When false, a random shard is used (default: true).
|
|
func (s *IndicesAnalyzeService) PreferLocal(preferLocal bool) *IndicesAnalyzeService {
|
|
s.preferLocal = &preferLocal
|
|
return s
|
|
}
|
|
|
|
// Request passes the analyze request to use.
|
|
func (s *IndicesAnalyzeService) Request(request *IndicesAnalyzeRequest) *IndicesAnalyzeService {
|
|
if request == nil {
|
|
s.request = new(IndicesAnalyzeRequest)
|
|
} else {
|
|
s.request = request
|
|
}
|
|
return s
|
|
}
|
|
|
|
// Analyzer is the name of the analyzer to use.
|
|
func (s *IndicesAnalyzeService) Analyzer(analyzer string) *IndicesAnalyzeService {
|
|
s.request.Analyzer = analyzer
|
|
return s
|
|
}
|
|
|
|
// Attributes is a list of token attributes to output; this parameter works
|
|
// only with explain=true.
|
|
func (s *IndicesAnalyzeService) Attributes(attributes ...string) *IndicesAnalyzeService {
|
|
s.request.Attributes = attributes
|
|
return s
|
|
}
|
|
|
|
// CharFilter is a list of character filters to use for the analysis.
|
|
func (s *IndicesAnalyzeService) CharFilter(charFilter ...string) *IndicesAnalyzeService {
|
|
s.request.CharFilter = charFilter
|
|
return s
|
|
}
|
|
|
|
// Explain, when true, outputs more advanced details (default: false).
|
|
func (s *IndicesAnalyzeService) Explain(explain bool) *IndicesAnalyzeService {
|
|
s.request.Explain = explain
|
|
return s
|
|
}
|
|
|
|
// Field specifies to use a specific analyzer configured for this field (instead of passing the analyzer name).
|
|
func (s *IndicesAnalyzeService) Field(field string) *IndicesAnalyzeService {
|
|
s.request.Field = field
|
|
return s
|
|
}
|
|
|
|
// Filter is a list of filters to use for the analysis.
|
|
func (s *IndicesAnalyzeService) Filter(filter ...string) *IndicesAnalyzeService {
|
|
s.request.Filter = filter
|
|
return s
|
|
}
|
|
|
|
// Text is the text on which the analysis should be performed (when request body is not used).
|
|
func (s *IndicesAnalyzeService) Text(text ...string) *IndicesAnalyzeService {
|
|
s.request.Text = text
|
|
return s
|
|
}
|
|
|
|
// Tokenizer is the name of the tokenizer to use for the analysis.
|
|
func (s *IndicesAnalyzeService) Tokenizer(tokenizer string) *IndicesAnalyzeService {
|
|
s.request.Tokenizer = tokenizer
|
|
return s
|
|
}
|
|
|
|
// BodyJson is the text on which the analysis should be performed.
|
|
func (s *IndicesAnalyzeService) BodyJson(body interface{}) *IndicesAnalyzeService {
|
|
s.bodyJson = body
|
|
return s
|
|
}
|
|
|
|
// BodyString is the text on which the analysis should be performed.
|
|
func (s *IndicesAnalyzeService) BodyString(body string) *IndicesAnalyzeService {
|
|
s.bodyString = body
|
|
return s
|
|
}
|
|
|
|
// buildURL builds the URL for the operation.
|
|
func (s *IndicesAnalyzeService) buildURL() (string, url.Values, error) {
|
|
// Build URL
|
|
var err error
|
|
var path string
|
|
|
|
if s.index == "" {
|
|
path = "/_analyze"
|
|
} else {
|
|
path, err = uritemplates.Expand("/{index}/_analyze", map[string]string{
|
|
"index": s.index,
|
|
})
|
|
}
|
|
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.format != "" {
|
|
params.Set("format", s.format)
|
|
}
|
|
if s.preferLocal != nil {
|
|
params.Set("prefer_local", fmt.Sprintf("%v", *s.preferLocal))
|
|
}
|
|
|
|
return path, params, nil
|
|
}
|
|
|
|
// Do will execute the request with the given context.
|
|
func (s *IndicesAnalyzeService) Do(ctx context.Context) (*IndicesAnalyzeResponse, error) {
|
|
// Check pre-conditions
|
|
if err := s.Validate(); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
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 if s.bodyString != "" {
|
|
body = s.bodyString
|
|
} else {
|
|
// Request parameters are deprecated in 5.1.1, and we must use a JSON
|
|
// structure in the body to pass the parameters.
|
|
// See https://www.elastic.co/guide/en/elasticsearch/reference/7.0/indices-analyze.html
|
|
body = s.request
|
|
}
|
|
|
|
res, err := s.client.PerformRequest(ctx, PerformRequestOptions{
|
|
Method: "POST",
|
|
Path: path,
|
|
Params: params,
|
|
Body: body,
|
|
Headers: s.headers,
|
|
})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
ret := new(IndicesAnalyzeResponse)
|
|
if err = s.client.decoder.Decode(res.Body, ret); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return ret, nil
|
|
}
|
|
|
|
func (s *IndicesAnalyzeService) Validate() error {
|
|
var invalid []string
|
|
if s.bodyJson == nil && s.bodyString == "" {
|
|
if len(s.request.Text) == 0 {
|
|
invalid = append(invalid, "Text")
|
|
}
|
|
}
|
|
if len(invalid) > 0 {
|
|
return fmt.Errorf("missing required fields: %v", invalid)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// IndicesAnalyzeRequest specifies the parameters of the analyze request.
|
|
type IndicesAnalyzeRequest struct {
|
|
Text []string `json:"text,omitempty"`
|
|
Analyzer string `json:"analyzer,omitempty"`
|
|
Tokenizer string `json:"tokenizer,omitempty"`
|
|
Filter []string `json:"filter,omitempty"`
|
|
CharFilter []string `json:"char_filter,omitempty"`
|
|
Field string `json:"field,omitempty"`
|
|
Explain bool `json:"explain,omitempty"`
|
|
Attributes []string `json:"attributes,omitempty"`
|
|
}
|
|
|
|
type IndicesAnalyzeResponse struct {
|
|
Tokens []AnalyzeToken `json:"tokens"` // json part for normal message
|
|
Detail IndicesAnalyzeResponseDetail `json:"detail"` // json part for verbose message of explain request
|
|
}
|
|
|
|
type AnalyzeTokenList struct {
|
|
Name string `json:"name"`
|
|
Tokens []AnalyzeToken `json:"tokens,omitempty"`
|
|
}
|
|
|
|
type AnalyzeToken struct {
|
|
Token string `json:"token"`
|
|
Type string `json:"type"` // e.g. "<ALPHANUM>"
|
|
StartOffset int `json:"start_offset"`
|
|
EndOffset int `json:"end_offset"`
|
|
Bytes string `json:"bytes"` // e.g. "[67 75 79]"
|
|
Position int `json:"position"`
|
|
PositionLength int `json:"positionLength"` // seems to be wrong in 7.2+ (no snake_case), see https://github.com/elastic/elasticsearch/blob/7.2/server/src/main/java/org/elasticsearch/action/admin/indices/analyze/AnalyzeResponse.java
|
|
TermFrequency int `json:"termFrequency"`
|
|
Keyword bool `json:"keyword"`
|
|
}
|
|
|
|
type CharFilteredText struct {
|
|
Name string `json:"name"`
|
|
FilteredText []string `json:"filtered_text"`
|
|
}
|
|
|
|
type IndicesAnalyzeResponseDetail struct {
|
|
CustomAnalyzer bool `json:"custom_analyzer"`
|
|
Analyzer *AnalyzeTokenList `json:"analyzer,omitempty"`
|
|
Charfilters []*CharFilteredText `json:"charfilters,omitempty"`
|
|
Tokenizer *AnalyzeTokenList `json:"tokenizer,omitempty"`
|
|
TokenFilters []*AnalyzeTokenList `json:"tokenfilters,omitempty"`
|
|
}
|