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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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