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Add generic ES query building utilities (#5168)
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,124 @@ | ||
| // The MIT License (MIT) | ||
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| // Copyright (c) 2017-2020 Uber Technologies Inc. | ||
|
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| // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| // of this software and associated documentation files (the "Software"), to deal | ||
| // in the Software without restriction, including without limitation the rights | ||
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| // copies of the Software, and to permit persons to whom the Software is | ||
| // furnished to do so, subject to the following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in all | ||
| // copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| // SOFTWARE. | ||
|
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| package query | ||
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| type Query interface { | ||
| // Source returns the JSON-serializable query request. | ||
| Source() (interface{}, error) | ||
| } | ||
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| type BoolQuery struct { | ||
| mustClauses []Query | ||
| mustNotClauses []Query | ||
| filterClauses []Query | ||
| } | ||
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| // Creates a new bool query. | ||
| func NewBoolQuery() *BoolQuery { | ||
| return &BoolQuery{ | ||
| mustClauses: make([]Query, 0), | ||
| mustNotClauses: make([]Query, 0), | ||
| filterClauses: make([]Query, 0), | ||
| } | ||
| } | ||
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| func (q *BoolQuery) Must(queries ...Query) *BoolQuery { | ||
| q.mustClauses = append(q.mustClauses, queries...) | ||
| return q | ||
| } | ||
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| func (q *BoolQuery) MustNot(queries ...Query) *BoolQuery { | ||
| q.mustNotClauses = append(q.mustNotClauses, queries...) | ||
| return q | ||
| } | ||
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| func (q *BoolQuery) Filter(filters ...Query) *BoolQuery { | ||
| q.filterClauses = append(q.filterClauses, filters...) | ||
| return q | ||
| } | ||
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| func (q *BoolQuery) Source() (interface{}, error) { | ||
| query := make(map[string]interface{}) | ||
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| boolClause := make(map[string]interface{}) | ||
| query["bool"] = boolClause | ||
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| // must | ||
| if len(q.mustClauses) == 1 { | ||
| src, err := q.mustClauses[0].Source() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| boolClause["must"] = src | ||
| } else if len(q.mustClauses) > 1 { | ||
| var clauses []interface{} | ||
| for _, subQuery := range q.mustClauses { | ||
| src, err := subQuery.Source() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| clauses = append(clauses, src) | ||
| } | ||
| boolClause["must"] = clauses | ||
| } | ||
|
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| // must_not | ||
| if len(q.mustNotClauses) == 1 { | ||
| src, err := q.mustNotClauses[0].Source() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| boolClause["must_not"] = src | ||
| } else if len(q.mustNotClauses) > 1 { | ||
| var clauses []interface{} | ||
| for _, subQuery := range q.mustNotClauses { | ||
| src, err := subQuery.Source() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| clauses = append(clauses, src) | ||
| } | ||
| boolClause["must_not"] = clauses | ||
| } | ||
|
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| // filter | ||
| if len(q.filterClauses) == 1 { | ||
| src, err := q.filterClauses[0].Source() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| boolClause["filter"] = src | ||
| } else if len(q.filterClauses) > 1 { | ||
| var clauses []interface{} | ||
| for _, subQuery := range q.filterClauses { | ||
| src, err := subQuery.Source() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| clauses = append(clauses, src) | ||
| } | ||
| boolClause["filter"] = clauses | ||
| } | ||
|
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| return query, nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| // The MIT License (MIT) | ||
|
|
||
| // Copyright (c) 2017-2020 Uber Technologies Inc. | ||
|
|
||
| // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| // of this software and associated documentation files (the "Software"), to deal | ||
| // in the Software without restriction, including without limitation the rights | ||
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| // copies of the Software, and to permit persons to whom the Software is | ||
| // furnished to do so, subject to the following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in all | ||
| // copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| // SOFTWARE. | ||
|
|
||
| package query | ||
|
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| import ( | ||
| "encoding/json" | ||
| "testing" | ||
| ) | ||
|
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| func TestBoolQuery(t *testing.T) { | ||
| q := NewBoolQuery() | ||
| q = q.MustNot(NewRangeQuery("age").From(10).To(20)) | ||
| src, err := q.Source() | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| data, err := json.Marshal(src) | ||
| if err != nil { | ||
| t.Fatalf("marshaling to JSON failed: %v", err) | ||
| } | ||
| got := string(data) | ||
| expected := `{"bool":{"must_not":{"range":{"age":{"from":10,"include_lower":true,"include_upper":true,"to":20}}}}}` | ||
| if got != expected { | ||
| t.Errorf("expected\n%s\n,got:\n%s", expected, got) | ||
| } | ||
| } |
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