| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| import axios from 'axios'; |
| import { AxiosResponse } from 'axios'; |
| |
| import { assemble } from './general'; |
| |
| export function parseHtmlError(htmlStr: string): string | undefined { |
| const startIndex = htmlStr.indexOf('</h3><pre>'); |
| const endIndex = htmlStr.indexOf('\n\tat'); |
| if (startIndex === -1 || endIndex === -1) return; |
| |
| return htmlStr |
| .substring(startIndex + 10, endIndex) |
| .replace(/"/g, '"') |
| .replace(/'/g, `'`) |
| .replace(/>/g, '>'); |
| } |
| |
| export function getDruidErrorMessage(e: any) { |
| const data: any = (e.response || {}).data || {}; |
| switch (typeof data) { |
| case 'object': |
| return ( |
| assemble( |
| data.error, |
| data.errorMessage, |
| data.errorClass, |
| data.host ? `on host ${data.host}` : undefined, |
| ).join(' / ') || e.message |
| ); |
| |
| case 'string': |
| const htmlResp = parseHtmlError(data); |
| return htmlResp ? `HTML Error: ${htmlResp}` : e.message; |
| |
| default: |
| return e.message; |
| } |
| } |
| |
| export async function queryDruidRune(runeQuery: Record<string, any>): Promise<any> { |
| let runeResultResp: AxiosResponse<any>; |
| try { |
| runeResultResp = await axios.post('/druid/v2', runeQuery); |
| } catch (e) { |
| throw new Error(getDruidErrorMessage(e)); |
| } |
| return runeResultResp.data; |
| } |
| |
| export async function queryDruidSql<T = any>(sqlQuery: Record<string, any>): Promise<T[]> { |
| let sqlResultResp: AxiosResponse<any>; |
| try { |
| sqlResultResp = await axios.post('/druid/v2/sql', sqlQuery); |
| } catch (e) { |
| throw new Error(getDruidErrorMessage(e)); |
| } |
| return sqlResultResp.data; |
| } |
| |
| export interface BasicQueryExplanation { |
| query: any; |
| signature: string | null; |
| } |
| |
| export interface SemiJoinQueryExplanation { |
| mainQuery: BasicQueryExplanation; |
| subQueryRight: BasicQueryExplanation; |
| } |
| |
| function parseQueryPlanResult(queryPlanResult: string): BasicQueryExplanation { |
| if (!queryPlanResult) { |
| return { |
| query: null, |
| signature: null, |
| }; |
| } |
| |
| const queryAndSignature = queryPlanResult.split(', signature='); |
| const queryValue = new RegExp(/query=(.+)/).exec(queryAndSignature[0]); |
| const signatureValue = queryAndSignature[1]; |
| |
| let parsedQuery: any; |
| |
| if (queryValue && queryValue[1]) { |
| try { |
| parsedQuery = JSON.parse(queryValue[1]); |
| } catch (e) {} |
| } |
| |
| return { |
| query: parsedQuery || queryPlanResult, |
| signature: signatureValue || null, |
| }; |
| } |
| |
| export function parseQueryPlan( |
| raw: string, |
| ): BasicQueryExplanation | SemiJoinQueryExplanation | string { |
| let plan: string = raw; |
| plan = plan.replace(/\n/g, ''); |
| |
| if (plan.includes('DruidOuterQueryRel(')) { |
| return plan; // don't know how to parse this |
| } |
| |
| let queryArgs: string; |
| const queryRelFnStart = 'DruidQueryRel('; |
| const semiJoinFnStart = 'DruidSemiJoin('; |
| |
| if (plan.startsWith(queryRelFnStart)) { |
| queryArgs = plan.substring(queryRelFnStart.length, plan.length - 1); |
| } else if (plan.startsWith(semiJoinFnStart)) { |
| queryArgs = plan.substring(semiJoinFnStart.length, plan.length - 1); |
| const leftExpressionsArgs = ', leftExpressions='; |
| const keysArgumentIdx = queryArgs.indexOf(leftExpressionsArgs); |
| if (keysArgumentIdx !== -1) { |
| return { |
| mainQuery: parseQueryPlanResult(queryArgs.substring(0, keysArgumentIdx)), |
| subQueryRight: parseQueryPlan(queryArgs.substring(queryArgs.indexOf(queryRelFnStart))), |
| } as SemiJoinQueryExplanation; |
| } |
| } else { |
| return plan; |
| } |
| |
| return parseQueryPlanResult(queryArgs); |
| } |