c526a38369
ultimately this is make it more convenient for us to wire up different elements of the analysis pipeline, without having to preload everything into memory before we need it separately the index layer now has a mechanism for storing internal key/value pairs. this is expected to be used to store the mapping, and possibly other pieces of data by the top layer, but not exposed to the user at the top.
212 lines
5.4 KiB
Go
212 lines
5.4 KiB
Go
// Copyright (c) 2014 Couchbase, Inc.
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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// except in compliance with the License. You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software distributed under the
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// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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// either express or implied. See the License for the specific language governing permissions
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// and limitations under the License.
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package bleve
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import (
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"encoding/json"
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"fmt"
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"time"
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"github.com/couchbaselabs/bleve/analysis"
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"github.com/couchbaselabs/bleve/search"
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)
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type NumericRange struct {
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Name string `json:"name,omitempty"`
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Min *float64 `json:"min,omitempty"`
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Max *float64 `json:"max,omitempty"`
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}
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type DateTimeRange struct {
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Name string `json:"name,omitempty"`
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Start time.Time `json:"start,omitempty"`
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End time.Time `json:"end,omitempty"`
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startString *string
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endString *string
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}
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func (dr *DateTimeRange) ParseDates(dateTimeParser analysis.DateTimeParser) {
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if dr.Start.IsZero() && dr.startString != nil {
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start, err := dateTimeParser.ParseDateTime(*dr.startString)
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if err == nil {
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dr.Start = start
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}
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}
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if dr.End.IsZero() && dr.endString != nil {
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end, err := dateTimeParser.ParseDateTime(*dr.endString)
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if err == nil {
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dr.End = end
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}
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}
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}
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func (dr *DateTimeRange) UnmarshalJSON(input []byte) error {
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var temp struct {
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Name string `json:"name,omitempty"`
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Start *string `json:"start,omitempty"`
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End *string `json:"end,omitempty"`
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}
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err := json.Unmarshal(input, &temp)
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if err != nil {
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return err
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}
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dr.Name = temp.Name
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if temp.Start != nil {
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dr.startString = temp.Start
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}
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if temp.End != nil {
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dr.endString = temp.End
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}
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return nil
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}
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type FacetRequest struct {
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Size int
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Field string
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NumericRanges []*NumericRange `json:"numeric_ranges,omitempty"`
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DateTimeRanges []*DateTimeRange `json:"date_ranges,omitempty"`
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}
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func NewFacetRequest(field string, size int) *FacetRequest {
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return &FacetRequest{
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Field: field,
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Size: size,
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}
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}
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func (fr *FacetRequest) AddDateTimeRange(name string, start, end time.Time) {
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if fr.DateTimeRanges == nil {
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fr.DateTimeRanges = make([]*DateTimeRange, 0, 1)
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}
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fr.DateTimeRanges = append(fr.DateTimeRanges, &DateTimeRange{Name: name, Start: start, End: end})
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}
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func (fr *FacetRequest) AddNumericRange(name string, min, max *float64) {
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if fr.NumericRanges == nil {
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fr.NumericRanges = make([]*NumericRange, 0, 1)
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}
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fr.NumericRanges = append(fr.NumericRanges, &NumericRange{Name: name, Min: min, Max: max})
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}
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type FacetsRequest map[string]*FacetRequest
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type HighlightRequest struct {
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Style *string `json:"style"`
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Fields []string `json:"fields"`
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}
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func NewHighlight() *HighlightRequest {
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return &HighlightRequest{}
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}
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func NewHighlightWithStyle(style string) *HighlightRequest {
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return &HighlightRequest{
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Style: &style,
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}
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}
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type SearchRequest struct {
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Query Query `json:"query"`
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Size int `json:"size"`
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From int `json:"from"`
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Highlight *HighlightRequest `json:"highlight"`
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Fields []string `json:"fields"`
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Facets FacetsRequest `json:"facets"`
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Explain bool `json:"explain"`
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}
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func (r *SearchRequest) AddFacet(facetName string, f *FacetRequest) {
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if r.Facets == nil {
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r.Facets = make(FacetsRequest, 1)
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}
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r.Facets[facetName] = f
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}
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func (r *SearchRequest) UnmarshalJSON(input []byte) error {
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var temp struct {
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Q json.RawMessage `json:"query"`
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Size int `json:"size"`
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From int `json:"from"`
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Highlight *HighlightRequest `json:"highlight"`
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Fields []string `json:"fields"`
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Facets FacetsRequest `json:"facets"`
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Explain bool `json:"explain"`
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}
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err := json.Unmarshal(input, &temp)
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if err != nil {
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return err
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}
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r.Size = temp.Size
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r.From = temp.From
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r.Explain = temp.Explain
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r.Highlight = temp.Highlight
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r.Fields = temp.Fields
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r.Facets = temp.Facets
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r.Query, err = ParseQuery(temp.Q)
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if err != nil {
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return err
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}
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if r.Size <= 0 {
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r.Size = 10
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}
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if r.From <= 0 {
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r.From = 0
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}
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return nil
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}
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func NewSearchRequest(q Query) *SearchRequest {
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return NewSearchRequestOptions(q, 10, 0, false)
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}
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func NewSearchRequestOptions(q Query, size, from int, explain bool) *SearchRequest {
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return &SearchRequest{
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Query: q,
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Size: size,
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From: from,
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Explain: explain,
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}
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}
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type SearchResult struct {
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Request *SearchRequest `json:"request"`
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Hits search.DocumentMatchCollection `json:"hits"`
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Total uint64 `json:"total_hits"`
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MaxScore float64 `json:"max_score"`
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Took time.Duration `json:"took"`
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Facets search.FacetResults `json:"facets"`
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}
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func (sr *SearchResult) String() string {
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rv := ""
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if len(sr.Hits) > 0 {
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rv = fmt.Sprintf("%d matches, showing %d through %d, took %s\n", sr.Total, sr.Request.From+1, sr.Request.From+len(sr.Hits), sr.Took)
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for i, hit := range sr.Hits {
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rv += fmt.Sprintf("%5d. %s (%f)\n", i+sr.Request.From+1, hit.ID, hit.Score)
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for fragmentField, fragments := range hit.Fragments {
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rv += fmt.Sprintf("\t%s\n", fragmentField)
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for _, fragment := range fragments {
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rv += fmt.Sprintf("\t\t%s\n", fragment)
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}
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}
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}
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} else {
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rv = "No matches"
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}
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return rv
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}
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