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Merge pull request #84 from quickwit-oss/ddelemeny/split-datasource-p…
…rocess-response Extract datasource query processing
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,94 @@ | ||
| import { DataFrame, DataLink, DataQueryRequest, DataQueryResponse, FieldType } from "@grafana/data"; | ||
| import { getDataSourceSrv } from "@grafana/runtime"; | ||
| import { QuickwitDataSource } from 'datasource'; | ||
| import { DataLinkConfig, ElasticsearchQuery } from "../types"; | ||
|
|
||
| export function getQueryResponseProcessor(datasource: QuickwitDataSource, request: DataQueryRequest<ElasticsearchQuery>) { | ||
| return { | ||
| processResponse: (response: DataQueryResponse) => { | ||
| response.data.forEach((dataFrame) => { | ||
| const metrics = request.targets[0].metrics; | ||
| if (metrics && metrics[0].type === 'logs') { | ||
| processLogsDataFrame(datasource, dataFrame); | ||
| } | ||
| }); | ||
| return response; | ||
| } | ||
| }; | ||
| } | ||
| function getCustomFieldName(fieldname: string) { return `$qw_${fieldname}`; } | ||
| export function processLogsDataFrame(datasource: QuickwitDataSource, dataFrame: DataFrame) { | ||
| // Ignore log volume dataframe, no need to add links or a displayed message field. | ||
| if (!dataFrame.refId || dataFrame.refId.startsWith('log-volume')) { | ||
| return; | ||
| } | ||
| if (datasource.logMessageField) { | ||
| const messageFields = datasource.logMessageField.split(','); | ||
| let field_idx_list = []; | ||
| for (const messageField of messageFields) { | ||
| const field_idx = dataFrame.fields.findIndex((field) => field.name === messageField); | ||
| if (field_idx !== -1) { | ||
| field_idx_list.push(field_idx); | ||
| } | ||
| } | ||
| const displayedMessages = Array(dataFrame.length); | ||
| for (let idx = 0; idx < dataFrame.length; idx++) { | ||
| let displayedMessage = ""; | ||
| // If we have only one field, we assume the field name is obvious for the user and we don't need to show it. | ||
| if (field_idx_list.length === 1) { | ||
| displayedMessage = `${dataFrame.fields[field_idx_list[0]].values[idx]}`; | ||
| } else { | ||
| for (const field_idx of field_idx_list) { | ||
| displayedMessage += ` ${dataFrame.fields[field_idx].name}=${dataFrame.fields[field_idx].values[idx]}`; | ||
| } | ||
| } | ||
| displayedMessages[idx] = displayedMessage.trim(); | ||
| } | ||
|
|
||
| const newField = { | ||
| name: getCustomFieldName('message'), | ||
| type: FieldType.string, | ||
| config: {}, | ||
| values: displayedMessages, | ||
| }; | ||
| const [timestamp, ...rest] = dataFrame.fields; | ||
| dataFrame.fields = [timestamp, newField, ...rest]; | ||
| } | ||
|
|
||
| if (!datasource.dataLinks.length) { | ||
| return; | ||
| } | ||
|
|
||
| for (const field of dataFrame.fields) { | ||
| const linksToApply = datasource.dataLinks.filter((dataLink) => dataLink.field === field.name); | ||
|
|
||
| if (linksToApply.length === 0) { | ||
| continue; | ||
| } | ||
|
|
||
| field.config = field.config || {}; | ||
| field.config.links = [...(field.config.links || [], linksToApply.map(generateDataLink))]; | ||
| } | ||
| } | ||
| function generateDataLink(linkConfig: DataLinkConfig): DataLink { | ||
| const dataSourceSrv = getDataSourceSrv(); | ||
|
|
||
| if (linkConfig.datasourceUid) { | ||
| const dsSettings = dataSourceSrv.getInstanceSettings(linkConfig.datasourceUid); | ||
|
|
||
| return { | ||
| title: linkConfig.urlDisplayLabel || '', | ||
| url: '', | ||
| internal: { | ||
| query: { query: linkConfig.url }, | ||
| datasourceUid: linkConfig.datasourceUid, | ||
| datasourceName: dsSettings?.name ?? 'Data source not found', | ||
| }, | ||
| }; | ||
| } else { | ||
| return { | ||
| title: linkConfig.urlDisplayLabel || '', | ||
| url: linkConfig.url, | ||
| }; | ||
| } | ||
| } |
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