|
1 | 1 | import {
|
| 2 | + BucketAggregation, |
| 3 | + ElasticsearchQuery, |
| 4 | + MetricAggregation, |
2 | 5 | TermsQuery,
|
3 | 6 | } from '../types';
|
4 | 7 |
|
5 |
| -export class ElasticQueryBuilder { |
6 |
| - timeField: string; |
7 | 8 |
|
8 |
| - constructor(options: { timeField: string }) { |
9 |
| - this.timeField = options.timeField; |
10 |
| - } |
11 |
| - |
12 |
| - getRangeFilter() { |
13 |
| - const filter: any = {}; |
14 |
| - filter[this.timeField] = { |
15 |
| - gte: '$timeFrom', |
16 |
| - lte: '$timeTo', |
17 |
| - // FIXME when Quickwit supports format. |
18 |
| - // format: 'epoch_millis', |
19 |
| - }; |
20 |
| - |
21 |
| - return filter; |
22 |
| - } |
23 |
| - |
24 |
| - getTermsQuery(queryDef: TermsQuery) { |
25 |
| - const query: any = { |
26 |
| - size: 0, |
27 |
| - query: { |
28 |
| - bool: { |
29 |
| - filter: [{ range: this.getRangeFilter() }], |
30 |
| - }, |
31 |
| - }, |
32 |
| - }; |
33 |
| - |
34 |
| - if (queryDef.query) { |
35 |
| - query.query.bool.filter.push({ |
36 |
| - query_string: { |
37 |
| - // FIXME when Quickwit supports analyze_wildcard. |
38 |
| - // analyze_wildcard: true, |
39 |
| - query: queryDef.query, |
40 |
| - }, |
41 |
| - }); |
42 |
| - } |
| 9 | +type OrderByType = '_key' | '_term' | '_count' |
43 | 10 |
|
44 |
| - let size = 500; |
45 |
| - if (queryDef.size) { |
46 |
| - size = queryDef.size; |
| 11 | +function getTermsAgg( |
| 12 | + fieldName: string, |
| 13 | + size: number, |
| 14 | + orderBy: OrderByType = "_key", |
| 15 | + order: 'asc'|'desc' = 'asc' |
| 16 | + ): BucketAggregation { |
| 17 | + return { |
| 18 | + type: 'terms', |
| 19 | + id: "", |
| 20 | + field: fieldName, |
| 21 | + settings:{ |
| 22 | + size: size.toString(), |
| 23 | + order: order, |
| 24 | + orderBy: orderBy, |
47 | 25 | }
|
| 26 | + } |
| 27 | +} |
48 | 28 |
|
49 |
| - query.aggs = { |
50 |
| - '1': { |
51 |
| - terms: { |
52 |
| - field: queryDef.field, |
53 |
| - size: size, |
54 |
| - order: {}, |
55 |
| - }, |
56 |
| - }, |
57 |
| - }; |
| 29 | +export function getDataQuery(queryDef: TermsQuery, refId: string): ElasticsearchQuery { |
| 30 | + const metrics: MetricAggregation[] = [ |
| 31 | + {id:"count1", type:'count'} |
| 32 | + ]; |
58 | 33 |
|
59 |
| - // Default behaviour is to order results by { _key: asc } |
60 |
| - // queryDef.order allows selection of asc/desc |
61 |
| - // queryDef.orderBy allows selection of doc_count ordering (defaults desc) |
| 34 | + // Default behaviour is to order results by { _key: asc } |
| 35 | + // queryDef.order allows selection of asc/desc |
| 36 | + // queryDef.orderBy allows selection of doc_count ordering (defaults desc) |
62 | 37 |
|
63 |
| - const { orderBy = 'key', order = orderBy === 'doc_count' ? 'desc' : 'asc' } = queryDef; |
| 38 | + let orderBy: OrderByType; |
| 39 | + switch (queryDef.orderBy || 'key') { |
| 40 | + case 'key': |
| 41 | + case 'term': |
| 42 | + orderBy = '_key' |
| 43 | + break; |
| 44 | + case 'doc_count': |
| 45 | + orderBy = '_count' |
| 46 | + break; |
| 47 | + default: |
| 48 | + throw { message: `Invalid query sort type ${queryDef.orderBy}` }; |
| 49 | + } |
64 | 50 |
|
65 |
| - if (['asc', 'desc'].indexOf(order) < 0) { |
66 |
| - throw { message: `Invalid query sort order ${order}` }; |
67 |
| - } |
| 51 | + const {order = orderBy === '_count' ? 'desc' : 'asc' } = queryDef; |
| 52 | + if (['asc', 'desc'].indexOf(order) < 0) { |
| 53 | + throw { message: `Invalid query sort order ${order}` }; |
| 54 | + } |
68 | 55 |
|
69 |
| - switch (orderBy) { |
70 |
| - case 'key': |
71 |
| - case 'term': |
72 |
| - const keyname = '_key'; |
73 |
| - query.aggs['1'].terms.order[keyname] = order; |
74 |
| - break; |
75 |
| - case 'doc_count': |
76 |
| - query.aggs['1'].terms.order['_count'] = order; |
77 |
| - break; |
78 |
| - default: |
79 |
| - throw { message: `Invalid query sort type ${orderBy}` }; |
80 |
| - } |
| 56 | + const bucketAggs: BucketAggregation[] = []; |
| 57 | + if (queryDef.field) { |
| 58 | + bucketAggs.push(getTermsAgg(queryDef.field, 500, orderBy, order)) |
| 59 | + } |
81 | 60 |
|
82 |
| - return query; |
| 61 | + return { |
| 62 | + refId, |
| 63 | + metrics, |
| 64 | + bucketAggs, |
| 65 | + query: queryDef.query, |
83 | 66 | }
|
84 | 67 | }
|
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