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470 lines
12 KiB
470 lines
12 KiB
5 years ago
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// 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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// Highlight allows highlighting search results on one or more fields.
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// For details, see:
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// https://www.elastic.co/guide/en/elasticsearch/reference/7.0/search-request-highlighting.html
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type Highlight struct {
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fields []*HighlighterField
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tagsSchema *string
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highlightFilter *bool
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fragmentSize *int
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numOfFragments *int
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preTags []string
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postTags []string
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order *string
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encoder *string
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requireFieldMatch *bool
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boundaryMaxScan *int
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boundaryChars *string
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boundaryScannerType *string
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boundaryScannerLocale *string
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highlighterType *string
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fragmenter *string
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highlightQuery Query
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noMatchSize *int
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phraseLimit *int
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options map[string]interface{}
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forceSource *bool
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useExplicitFieldOrder bool
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}
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func NewHighlight() *Highlight {
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hl := &Highlight{
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options: make(map[string]interface{}),
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}
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return hl
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}
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func (hl *Highlight) Fields(fields ...*HighlighterField) *Highlight {
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hl.fields = append(hl.fields, fields...)
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return hl
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}
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func (hl *Highlight) Field(name string) *Highlight {
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field := NewHighlighterField(name)
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hl.fields = append(hl.fields, field)
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return hl
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}
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func (hl *Highlight) TagsSchema(schemaName string) *Highlight {
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hl.tagsSchema = &schemaName
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return hl
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}
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func (hl *Highlight) HighlightFilter(highlightFilter bool) *Highlight {
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hl.highlightFilter = &highlightFilter
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return hl
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}
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func (hl *Highlight) FragmentSize(fragmentSize int) *Highlight {
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hl.fragmentSize = &fragmentSize
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return hl
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}
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func (hl *Highlight) NumOfFragments(numOfFragments int) *Highlight {
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hl.numOfFragments = &numOfFragments
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return hl
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}
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func (hl *Highlight) Encoder(encoder string) *Highlight {
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hl.encoder = &encoder
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return hl
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}
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func (hl *Highlight) PreTags(preTags ...string) *Highlight {
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hl.preTags = append(hl.preTags, preTags...)
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return hl
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}
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func (hl *Highlight) PostTags(postTags ...string) *Highlight {
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hl.postTags = append(hl.postTags, postTags...)
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return hl
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}
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func (hl *Highlight) Order(order string) *Highlight {
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hl.order = &order
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return hl
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}
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func (hl *Highlight) RequireFieldMatch(requireFieldMatch bool) *Highlight {
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hl.requireFieldMatch = &requireFieldMatch
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return hl
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}
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func (hl *Highlight) BoundaryMaxScan(boundaryMaxScan int) *Highlight {
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hl.boundaryMaxScan = &boundaryMaxScan
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return hl
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}
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func (hl *Highlight) BoundaryChars(boundaryChars string) *Highlight {
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hl.boundaryChars = &boundaryChars
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return hl
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}
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func (hl *Highlight) BoundaryScannerType(boundaryScannerType string) *Highlight {
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hl.boundaryScannerType = &boundaryScannerType
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return hl
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}
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func (hl *Highlight) BoundaryScannerLocale(boundaryScannerLocale string) *Highlight {
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hl.boundaryScannerLocale = &boundaryScannerLocale
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return hl
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}
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func (hl *Highlight) HighlighterType(highlighterType string) *Highlight {
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hl.highlighterType = &highlighterType
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return hl
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}
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func (hl *Highlight) Fragmenter(fragmenter string) *Highlight {
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hl.fragmenter = &fragmenter
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return hl
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}
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func (hl *Highlight) HighlightQuery(highlightQuery Query) *Highlight {
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hl.highlightQuery = highlightQuery
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return hl
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}
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func (hl *Highlight) NoMatchSize(noMatchSize int) *Highlight {
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hl.noMatchSize = &noMatchSize
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return hl
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}
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func (hl *Highlight) Options(options map[string]interface{}) *Highlight {
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hl.options = options
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return hl
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}
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func (hl *Highlight) ForceSource(forceSource bool) *Highlight {
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hl.forceSource = &forceSource
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return hl
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}
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func (hl *Highlight) UseExplicitFieldOrder(useExplicitFieldOrder bool) *Highlight {
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hl.useExplicitFieldOrder = useExplicitFieldOrder
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return hl
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}
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// Creates the query source for the bool query.
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func (hl *Highlight) Source() (interface{}, error) {
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// Returns the map inside of "highlight":
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// "highlight":{
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// ... this ...
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// }
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source := make(map[string]interface{})
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if hl.tagsSchema != nil {
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source["tags_schema"] = *hl.tagsSchema
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}
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if hl.preTags != nil && len(hl.preTags) > 0 {
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source["pre_tags"] = hl.preTags
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}
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if hl.postTags != nil && len(hl.postTags) > 0 {
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source["post_tags"] = hl.postTags
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}
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if hl.order != nil {
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source["order"] = *hl.order
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}
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if hl.highlightFilter != nil {
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source["highlight_filter"] = *hl.highlightFilter
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}
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if hl.fragmentSize != nil {
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source["fragment_size"] = *hl.fragmentSize
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}
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if hl.numOfFragments != nil {
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source["number_of_fragments"] = *hl.numOfFragments
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}
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if hl.encoder != nil {
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source["encoder"] = *hl.encoder
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}
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if hl.requireFieldMatch != nil {
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source["require_field_match"] = *hl.requireFieldMatch
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}
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if hl.boundaryMaxScan != nil {
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source["boundary_max_scan"] = *hl.boundaryMaxScan
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}
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if hl.boundaryChars != nil {
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source["boundary_chars"] = *hl.boundaryChars
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}
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if hl.boundaryScannerType != nil {
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source["boundary_scanner"] = *hl.boundaryScannerType
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}
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if hl.boundaryScannerLocale != nil {
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source["boundary_scanner_locale"] = *hl.boundaryScannerLocale
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}
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if hl.highlighterType != nil {
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source["type"] = *hl.highlighterType
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}
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if hl.fragmenter != nil {
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source["fragmenter"] = *hl.fragmenter
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}
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if hl.highlightQuery != nil {
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src, err := hl.highlightQuery.Source()
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if err != nil {
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return nil, err
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}
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source["highlight_query"] = src
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}
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if hl.noMatchSize != nil {
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source["no_match_size"] = *hl.noMatchSize
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}
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if hl.phraseLimit != nil {
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source["phrase_limit"] = *hl.phraseLimit
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}
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if hl.options != nil && len(hl.options) > 0 {
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source["options"] = hl.options
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}
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if hl.forceSource != nil {
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source["force_source"] = *hl.forceSource
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}
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if hl.fields != nil && len(hl.fields) > 0 {
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if hl.useExplicitFieldOrder {
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// Use a slice for the fields
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var fields []map[string]interface{}
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for _, field := range hl.fields {
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src, err := field.Source()
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if err != nil {
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return nil, err
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}
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fmap := make(map[string]interface{})
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fmap[field.Name] = src
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fields = append(fields, fmap)
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}
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source["fields"] = fields
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} else {
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// Use a map for the fields
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fields := make(map[string]interface{})
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for _, field := range hl.fields {
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src, err := field.Source()
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if err != nil {
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return nil, err
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}
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fields[field.Name] = src
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}
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source["fields"] = fields
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}
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}
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return source, nil
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}
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// HighlighterField specifies a highlighted field.
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type HighlighterField struct {
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Name string
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preTags []string
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postTags []string
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fragmentSize int
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fragmentOffset int
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numOfFragments int
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highlightFilter *bool
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order *string
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requireFieldMatch *bool
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boundaryMaxScan int
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boundaryChars []rune
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highlighterType *string
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fragmenter *string
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highlightQuery Query
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noMatchSize *int
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matchedFields []string
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phraseLimit *int
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options map[string]interface{}
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forceSource *bool
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/*
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Name string
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preTags []string
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postTags []string
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fragmentSize int
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numOfFragments int
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fragmentOffset int
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highlightFilter *bool
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order string
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requireFieldMatch *bool
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boundaryMaxScan int
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boundaryChars []rune
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highlighterType string
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fragmenter string
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highlightQuery Query
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noMatchSize *int
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matchedFields []string
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options map[string]interface{}
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forceSource *bool
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*/
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}
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func NewHighlighterField(name string) *HighlighterField {
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return &HighlighterField{
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Name: name,
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preTags: make([]string, 0),
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postTags: make([]string, 0),
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fragmentSize: -1,
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fragmentOffset: -1,
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numOfFragments: -1,
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boundaryMaxScan: -1,
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boundaryChars: make([]rune, 0),
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matchedFields: make([]string, 0),
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options: make(map[string]interface{}),
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}
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}
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func (f *HighlighterField) PreTags(preTags ...string) *HighlighterField {
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f.preTags = append(f.preTags, preTags...)
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return f
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}
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func (f *HighlighterField) PostTags(postTags ...string) *HighlighterField {
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f.postTags = append(f.postTags, postTags...)
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return f
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}
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func (f *HighlighterField) FragmentSize(fragmentSize int) *HighlighterField {
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f.fragmentSize = fragmentSize
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return f
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}
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func (f *HighlighterField) FragmentOffset(fragmentOffset int) *HighlighterField {
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f.fragmentOffset = fragmentOffset
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return f
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}
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func (f *HighlighterField) NumOfFragments(numOfFragments int) *HighlighterField {
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f.numOfFragments = numOfFragments
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return f
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}
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func (f *HighlighterField) HighlightFilter(highlightFilter bool) *HighlighterField {
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f.highlightFilter = &highlightFilter
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return f
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}
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func (f *HighlighterField) Order(order string) *HighlighterField {
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f.order = &order
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return f
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}
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func (f *HighlighterField) RequireFieldMatch(requireFieldMatch bool) *HighlighterField {
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f.requireFieldMatch = &requireFieldMatch
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return f
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}
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func (f *HighlighterField) BoundaryMaxScan(boundaryMaxScan int) *HighlighterField {
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f.boundaryMaxScan = boundaryMaxScan
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return f
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}
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func (f *HighlighterField) BoundaryChars(boundaryChars ...rune) *HighlighterField {
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f.boundaryChars = append(f.boundaryChars, boundaryChars...)
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return f
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}
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func (f *HighlighterField) HighlighterType(highlighterType string) *HighlighterField {
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f.highlighterType = &highlighterType
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return f
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}
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func (f *HighlighterField) Fragmenter(fragmenter string) *HighlighterField {
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f.fragmenter = &fragmenter
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return f
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}
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func (f *HighlighterField) HighlightQuery(highlightQuery Query) *HighlighterField {
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f.highlightQuery = highlightQuery
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return f
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}
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func (f *HighlighterField) NoMatchSize(noMatchSize int) *HighlighterField {
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f.noMatchSize = &noMatchSize
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return f
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}
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func (f *HighlighterField) Options(options map[string]interface{}) *HighlighterField {
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f.options = options
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return f
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}
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||
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func (f *HighlighterField) MatchedFields(matchedFields ...string) *HighlighterField {
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f.matchedFields = append(f.matchedFields, matchedFields...)
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return f
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}
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||
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func (f *HighlighterField) PhraseLimit(phraseLimit int) *HighlighterField {
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f.phraseLimit = &phraseLimit
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||
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return f
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}
|
||
|
|
|
||
|
|
func (f *HighlighterField) ForceSource(forceSource bool) *HighlighterField {
|
||
|
|
f.forceSource = &forceSource
|
||
|
|
return f
|
||
|
|
}
|
||
|
|
|
||
|
|
func (f *HighlighterField) Source() (interface{}, error) {
|
||
|
|
source := make(map[string]interface{})
|
||
|
|
|
||
|
|
if f.preTags != nil && len(f.preTags) > 0 {
|
||
|
|
source["pre_tags"] = f.preTags
|
||
|
|
}
|
||
|
|
if f.postTags != nil && len(f.postTags) > 0 {
|
||
|
|
source["post_tags"] = f.postTags
|
||
|
|
}
|
||
|
|
if f.fragmentSize != -1 {
|
||
|
|
source["fragment_size"] = f.fragmentSize
|
||
|
|
}
|
||
|
|
if f.numOfFragments != -1 {
|
||
|
|
source["number_of_fragments"] = f.numOfFragments
|
||
|
|
}
|
||
|
|
if f.fragmentOffset != -1 {
|
||
|
|
source["fragment_offset"] = f.fragmentOffset
|
||
|
|
}
|
||
|
|
if f.highlightFilter != nil {
|
||
|
|
source["highlight_filter"] = *f.highlightFilter
|
||
|
|
}
|
||
|
|
if f.order != nil {
|
||
|
|
source["order"] = *f.order
|
||
|
|
}
|
||
|
|
if f.requireFieldMatch != nil {
|
||
|
|
source["require_field_match"] = *f.requireFieldMatch
|
||
|
|
}
|
||
|
|
if f.boundaryMaxScan != -1 {
|
||
|
|
source["boundary_max_scan"] = f.boundaryMaxScan
|
||
|
|
}
|
||
|
|
if f.boundaryChars != nil && len(f.boundaryChars) > 0 {
|
||
|
|
source["boundary_chars"] = f.boundaryChars
|
||
|
|
}
|
||
|
|
if f.highlighterType != nil {
|
||
|
|
source["type"] = *f.highlighterType
|
||
|
|
}
|
||
|
|
if f.fragmenter != nil {
|
||
|
|
source["fragmenter"] = *f.fragmenter
|
||
|
|
}
|
||
|
|
if f.highlightQuery != nil {
|
||
|
|
src, err := f.highlightQuery.Source()
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
source["highlight_query"] = src
|
||
|
|
}
|
||
|
|
if f.noMatchSize != nil {
|
||
|
|
source["no_match_size"] = *f.noMatchSize
|
||
|
|
}
|
||
|
|
if f.matchedFields != nil && len(f.matchedFields) > 0 {
|
||
|
|
source["matched_fields"] = f.matchedFields
|
||
|
|
}
|
||
|
|
if f.phraseLimit != nil {
|
||
|
|
source["phrase_limit"] = *f.phraseLimit
|
||
|
|
}
|
||
|
|
if f.options != nil && len(f.options) > 0 {
|
||
|
|
source["options"] = f.options
|
||
|
|
}
|
||
|
|
if f.forceSource != nil {
|
||
|
|
source["force_source"] = *f.forceSource
|
||
|
|
}
|
||
|
|
|
||
|
|
return source, nil
|
||
|
|
}
|