boolquery.go

// Licensed to Elasticsearch B.V. under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Elasticsearch B.V. licenses this file to you under
// the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

// Code generated from the elasticsearch-specification DO NOT EDIT.
// https://github.com/elastic/elasticsearch-specification/tree/5fb8f1ce9c4605abcaa44aa0f17dbfc60497a757

package types

import (
	"bytes"
	"encoding/json"
	"errors"
	"fmt"
	"io"
	"strconv"
)

// BoolQuery type.
//
// https://github.com/elastic/elasticsearch-specification/blob/5fb8f1ce9c4605abcaa44aa0f17dbfc60497a757/specification/_types/query_dsl/compound.ts#L28-L52
type BoolQuery struct {
	// Boost Floating point number used to decrease or increase the relevance scores of
	// the query.
	// Boost values are relative to the default value of 1.0.
	// A boost value between 0 and 1.0 decreases the relevance score.
	// A value greater than 1.0 increases the relevance score.
	Boost *float32 `json:"boost,omitempty"`
	// Filter The clause (query) must appear in matching documents.
	// However, unlike `must`, the score of the query will be ignored.
	Filter []Query `json:"filter,omitempty"`
	// MinimumShouldMatch Specifies the number or percentage of `should` clauses returned documents
	// must match.
	MinimumShouldMatch MinimumShouldMatch `json:"minimum_should_match,omitempty"`
	// Must The clause (query) must appear in matching documents and will contribute to
	// the score.
	Must []Query `json:"must,omitempty"`
	// MustNot The clause (query) must not appear in the matching documents.
	// Because scoring is ignored, a score of `0` is returned for all documents.
	MustNot    []Query `json:"must_not,omitempty"`
	QueryName_ *string `json:"_name,omitempty"`
	// Should The clause (query) should appear in the matching document.
	Should []Query `json:"should,omitempty"`
}

func (s *BoolQuery) UnmarshalJSON(data []byte) error {

	dec := json.NewDecoder(bytes.NewReader(data))

	for {
		t, err := dec.Token()
		if err != nil {
			if errors.Is(err, io.EOF) {
				break
			}
			return err
		}

		switch t {

		case "boost":
			var tmp interface{}
			dec.Decode(&tmp)
			switch v := tmp.(type) {
			case string:
				value, err := strconv.ParseFloat(v, 32)
				if err != nil {
					return fmt.Errorf("%s | %w", "Boost", err)
				}
				f := float32(value)
				s.Boost = &f
			case float64:
				f := float32(v)
				s.Boost = &f
			}

		case "filter":
			rawMsg := json.RawMessage{}
			dec.Decode(&rawMsg)
			if !bytes.HasPrefix(rawMsg, []byte("[")) {
				o := NewQuery()
				if err := json.NewDecoder(bytes.NewReader(rawMsg)).Decode(&o); err != nil {
					return fmt.Errorf("%s | %w", "Filter", err)
				}

				s.Filter = append(s.Filter, *o)
			} else {
				if err := json.NewDecoder(bytes.NewReader(rawMsg)).Decode(&s.Filter); err != nil {
					return fmt.Errorf("%s | %w", "Filter", err)
				}
			}

		case "minimum_should_match":
			if err := dec.Decode(&s.MinimumShouldMatch); err != nil {
				return fmt.Errorf("%s | %w", "MinimumShouldMatch", err)
			}

		case "must":
			rawMsg := json.RawMessage{}
			dec.Decode(&rawMsg)
			if !bytes.HasPrefix(rawMsg, []byte("[")) {
				o := NewQuery()
				if err := json.NewDecoder(bytes.NewReader(rawMsg)).Decode(&o); err != nil {
					return fmt.Errorf("%s | %w", "Must", err)
				}

				s.Must = append(s.Must, *o)
			} else {
				if err := json.NewDecoder(bytes.NewReader(rawMsg)).Decode(&s.Must); err != nil {
					return fmt.Errorf("%s | %w", "Must", err)
				}
			}

		case "must_not":
			rawMsg := json.RawMessage{}
			dec.Decode(&rawMsg)
			if !bytes.HasPrefix(rawMsg, []byte("[")) {
				o := NewQuery()
				if err := json.NewDecoder(bytes.NewReader(rawMsg)).Decode(&o); err != nil {
					return fmt.Errorf("%s | %w", "MustNot", err)
				}

				s.MustNot = append(s.MustNot, *o)
			} else {
				if err := json.NewDecoder(bytes.NewReader(rawMsg)).Decode(&s.MustNot); err != nil {
					return fmt.Errorf("%s | %w", "MustNot", err)
				}
			}

		case "_name":
			var tmp json.RawMessage
			if err := dec.Decode(&tmp); err != nil {
				return fmt.Errorf("%s | %w", "QueryName_", err)
			}
			o := string(tmp[:])
			o, err = strconv.Unquote(o)
			if err != nil {
				o = string(tmp[:])
			}
			s.QueryName_ = &o

		case "should":
			rawMsg := json.RawMessage{}
			dec.Decode(&rawMsg)
			if !bytes.HasPrefix(rawMsg, []byte("[")) {
				o := NewQuery()
				if err := json.NewDecoder(bytes.NewReader(rawMsg)).Decode(&o); err != nil {
					return fmt.Errorf("%s | %w", "Should", err)
				}

				s.Should = append(s.Should, *o)
			} else {
				if err := json.NewDecoder(bytes.NewReader(rawMsg)).Decode(&s.Should); err != nil {
					return fmt.Errorf("%s | %w", "Should", err)
				}
			}

		}
	}
	return nil
}

// NewBoolQuery returns a BoolQuery.
func NewBoolQuery() *BoolQuery {
	r := &BoolQuery{}

	return r
}