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// Copyright 2012-2015 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
// MatchQuery is a family of queries that accept text/numerics/dates,
// analyzes it, and constructs a query out of it. For more details,
// see http://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-match-query.html.
//
// To create a new MatchQuery, use NewMatchQuery. To create specific types
// of queries, e.g. a match_phrase query, use NewMatchQuery(...).Type("phrase"),
// or use one of the shortcuts like NewMatchPhraseQuery(...).
type MatchQuery struct {
Query
name string
value interface{}
matchQueryType string // boolean, phrase, phrase_prefix
operator string // or / and
analyzer string
boost *float32
slop *int
fuzziness string
prefixLength *int
maxExpansions *int
minimumShouldMatch string
rewrite string
fuzzyRewrite string
lenient *bool
fuzzyTranspositions *bool
zeroTermsQuery string
cutoffFrequency *float32
queryName string
}
// NewMatchQuery creates a new MatchQuery.
func NewMatchQuery(name string, value interface{}) MatchQuery {
q := MatchQuery{name: name, value: value}
return q
}
// NewMatchPhraseQuery creates a new MatchQuery with type phrase.
func NewMatchPhraseQuery(name string, value interface{}) MatchQuery {
q := MatchQuery{name: name, value: value, matchQueryType: "phrase"}
return q
}
// NewMatchPhrasePrefixQuery creates a new MatchQuery with type phrase_prefix.
func NewMatchPhrasePrefixQuery(name string, value interface{}) MatchQuery {
q := MatchQuery{name: name, value: value, matchQueryType: "phrase_prefix"}
return q
}
// Type can be "boolean", "phrase", or "phrase_prefix".
func (q MatchQuery) Type(matchQueryType string) MatchQuery {
q.matchQueryType = matchQueryType
return q
}
func (q MatchQuery) Operator(operator string) MatchQuery {
q.operator = operator
return q
}
func (q MatchQuery) Analyzer(analyzer string) MatchQuery {
q.analyzer = analyzer
return q
}
func (q MatchQuery) Boost(boost float32) MatchQuery {
q.boost = &boost
return q
}
func (q MatchQuery) Slop(slop int) MatchQuery {
q.slop = &slop
return q
}
func (q MatchQuery) Fuzziness(fuzziness string) MatchQuery {
q.fuzziness = fuzziness
return q
}
func (q MatchQuery) PrefixLength(prefixLength int) MatchQuery {
q.prefixLength = &prefixLength
return q
}
func (q MatchQuery) MaxExpansions(maxExpansions int) MatchQuery {
q.maxExpansions = &maxExpansions
return q
}
func (q MatchQuery) MinimumShouldMatch(minimumShouldMatch string) MatchQuery {
q.minimumShouldMatch = minimumShouldMatch
return q
}
func (q MatchQuery) Rewrite(rewrite string) MatchQuery {
q.rewrite = rewrite
return q
}
func (q MatchQuery) FuzzyRewrite(fuzzyRewrite string) MatchQuery {
q.fuzzyRewrite = fuzzyRewrite
return q
}
func (q MatchQuery) Lenient(lenient bool) MatchQuery {
q.lenient = &lenient
return q
}
func (q MatchQuery) FuzzyTranspositions(fuzzyTranspositions bool) MatchQuery {
q.fuzzyTranspositions = &fuzzyTranspositions
return q
}
// ZeroTermsQuery can be "all" or "none".
func (q MatchQuery) ZeroTermsQuery(zeroTermsQuery string) MatchQuery {
q.zeroTermsQuery = zeroTermsQuery
return q
}
func (q MatchQuery) CutoffFrequency(cutoff float32) MatchQuery {
q.cutoffFrequency = &cutoff
return q
}
func (q MatchQuery) QueryName(queryName string) MatchQuery {
q.queryName = queryName
return q
}
func (q MatchQuery) Source() interface{} {
// {"match":{"name":{"query":"value","type":"boolean/phrase"}}}
source := make(map[string]interface{})
match := make(map[string]interface{})
source["match"] = match
query := make(map[string]interface{})
match[q.name] = query
query["query"] = q.value
if q.matchQueryType != "" {
query["type"] = q.matchQueryType
}
if q.operator != "" {
query["operator"] = q.operator
}
if q.analyzer != "" {
query["analyzer"] = q.analyzer
}
if q.boost != nil {
query["boost"] = *q.boost
}
if q.slop != nil {
query["slop"] = *q.slop
}
if q.fuzziness != "" {
query["fuzziness"] = q.fuzziness
}
if q.prefixLength != nil {
query["prefix_length"] = *q.prefixLength
}
if q.maxExpansions != nil {
query["max_expansions"] = *q.maxExpansions
}
if q.minimumShouldMatch != "" {
query["minimum_should_match"] = q.minimumShouldMatch
}
if q.rewrite != "" {
query["rewrite"] = q.rewrite
}
if q.fuzzyRewrite != "" {
query["fuzzy_rewrite"] = q.fuzzyRewrite
}
if q.lenient != nil {
query["lenient"] = *q.lenient
}
if q.fuzzyTranspositions != nil {
query["fuzzy_transpositions"] = *q.fuzzyTranspositions
}
if q.zeroTermsQuery != "" {
query["zero_terms_query"] = q.zeroTermsQuery
}
if q.cutoffFrequency != nil {
query["cutoff_frequency"] = q.cutoffFrequency
}
if q.queryName != "" {
query["_name"] = q.queryName
}
return source
}
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