[Reporting] Add SavedReport class (#109568) (#110131)

* [Reporting] Add SavedReport class

* add unit test

Co-authored-by: Kibana Machine <42973632+kibanamachine@users.noreply.github.com>

Co-authored-by: Kibana Machine <42973632+kibanamachine@users.noreply.github.com>

x-pack/plugins/reporting/server/lib/store/index.ts

@@ -7,5 +7,6 @@
 
 export { ReportDocument } from '../../../common/types';
 export { Report } from './report';
+export { SavedReport } from './saved_report';
 export { ReportingStore } from './store';
 export { IlmPolicyManager } from './ilm_policy_manager';

x-pack/plugins/reporting/server/lib/store/report.ts

@@ -24,8 +24,7 @@ const puid = new Puid();
 export const MIGRATION_VERSION = '7.14.0';
 
 /*
- * The public fields are a flattened version what Elasticsearch returns when you
- * `GET` a document.
+ * Class for an ephemeral report document: possibly is not saved in Elasticsearch
  */
 export class Report implements Partial<ReportSource & ReportDocumentHead> {
   public _index?: string;

x-pack/plugins/reporting/server/lib/store/saved_report.test.ts

@@ -0,0 +1,46 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import { SavedReport } from './';
+
+test('SavedReport should succeed if report has ES document fields present', () => {
+  const createInstance = () => {
+    return new SavedReport({
+      _id: '290357209345723095',
+      _index: '.reporting-fantastic',
+      _seq_no: 23,
+      _primary_term: 354000,
+      jobtype: 'cool-report',
+      payload: {
+        headers: '',
+        title: '',
+        browserTimezone: '',
+        objectType: '',
+        version: '',
+      },
+    });
+  };
+  expect(createInstance).not.toThrow();
+});
+
+test('SavedReport should throw an error if report is missing ES document fields', () => {
+  const createInstance = () => {
+    return new SavedReport({
+      jobtype: 'cool-report',
+      payload: {
+        headers: '',
+        title: '',
+        browserTimezone: '',
+        objectType: '',
+        version: '',
+      },
+    });
+  };
+  expect(createInstance).toThrowErrorMatchingInlineSnapshot(
+    `"Report is not editable: Job [undefined/undefined] is not synced with ES!"`
+  );
+});

x-pack/plugins/reporting/server/lib/store/saved_report.ts

@@ -0,0 +1,42 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import { ReportDocumentHead, ReportSource } from '../../../common/types';
+import { Report } from './';
+
+/*
+ * Class for a report document that is saved in Elasticsearch
+ */
+export class SavedReport extends Report {
+  public _index: string;
+  public _id: string;
+  public _primary_term: number;
+  public _seq_no: number;
+
+  constructor(opts: Partial<ReportSource> & Partial<ReportDocumentHead>) {
+    super(opts);
+
+    if (opts._id == null || opts._index == null) {
+      throw new Error(
+        `Report is not editable: Job [${opts._id}/${opts._index}] is not synced with ES!`
+      );
+    }
+
+    if (opts._seq_no == null || opts._primary_term == null) {
+      throw new Error(
+        `Report is not editable: Job [${opts._id}] is missing _seq_no and _primary_term fields!`
+      );
+    }
+
+    const { _id, _index, _seq_no, _primary_term } = opts;
+
+    this._id = _id;
+    this._index = _index;
+    this._primary_term = _primary_term;
+    this._seq_no = _seq_no;
+  }
+}

x-pack/plugins/reporting/server/lib/store/store.test.ts

@@ -14,8 +14,7 @@ import {
   createMockLevelLogger,
   createMockReportingCore,
 } from '../../test_helpers';
-import { Report, ReportDocument } from './report';
-import { ReportingStore } from './store';
+import { Report, ReportDocument, ReportingStore, SavedReport } from './';
 
 const { createApiResponse } = elasticsearchServiceMock;
 
@@ -177,7 +176,7 @@ describe('ReportingStore', () => {
     });
   });
 
-  it('findReport gets a report from ES and returns a Report object', async () => {
+  it('findReport gets a report from ES and returns a SavedReport object', async () => {
     // setup
     const mockReport: ReportDocument = {
       _id: '1234-foo-78',
@@ -209,7 +208,7 @@ describe('ReportingStore', () => {
     });
 
     expect(await store.findReportFromTask(report.toReportTaskJSON())).toMatchInlineSnapshot(`
-      Report {
+      SavedReport {
         "_id": "1234-foo-78",
         "_index": ".reporting-test-17409",
         "_primary_term": 1234,
@@ -239,9 +238,9 @@ describe('ReportingStore', () => {
     `);
   });
 
-  it('setReportClaimed sets the status of a record to processing', async () => {
+  it('setReportClaimed sets the status of a saved report to processing', async () => {
     const store = new ReportingStore(mockCore, mockLogger);
-    const report = new Report({
+    const report = new SavedReport({
       _id: 'id-of-processing',
       _index: '.reporting-test-index-12345',
       _seq_no: 42,
@@ -270,9 +269,9 @@ describe('ReportingStore', () => {
     expect(updateCall.if_primary_term).toBe(10002);
   });
 
-  it('setReportFailed sets the status of a record to failed', async () => {
+  it('setReportFailed sets the status of a saved report to failed', async () => {
     const store = new ReportingStore(mockCore, mockLogger);
-    const report = new Report({
+    const report = new SavedReport({
       _id: 'id-of-failure',
       _index: '.reporting-test-index-12345',
       _seq_no: 43,
@@ -301,9 +300,9 @@ describe('ReportingStore', () => {
     expect(updateCall.if_primary_term).toBe(10002);
   });
 
-  it('setReportCompleted sets the status of a record to completed', async () => {
+  it('setReportCompleted sets the status of a saved report to completed', async () => {
     const store = new ReportingStore(mockCore, mockLogger);
-    const report = new Report({
+    const report = new SavedReport({
       _id: 'vastly-great-report-id',
       _index: '.reporting-test-index-12345',
       _seq_no: 44,
@@ -332,9 +331,9 @@ describe('ReportingStore', () => {
     expect(updateCall.if_primary_term).toBe(10002);
   });
 
-  it('sets the status of a record to completed_with_warnings', async () => {
+  it('sets the status of a saved report to completed_with_warnings', async () => {
     const store = new ReportingStore(mockCore, mockLogger);
-    const report = new Report({
+    const report = new SavedReport({
       _id: 'vastly-great-report-id',
       _index: '.reporting-test-index-12345',
       _seq_no: 45,
@@ -378,7 +377,7 @@ describe('ReportingStore', () => {
 
   it('prepareReportForRetry resets the expiration and status on the report document', async () => {
     const store = new ReportingStore(mockCore, mockLogger);
-    const report = new Report({
+    const report = new SavedReport({
       _id: 'pretty-good-report-id',
       _index: '.reporting-test-index-94058763',
       _seq_no: 46,

x-pack/plugins/reporting/server/lib/store/store.ts

@@ -9,16 +9,14 @@ import { IndexResponse, UpdateResponse } from '@elastic/elasticsearch/api/types'
 import { ElasticsearchClient } from 'src/core/server';
 import { LevelLogger, statuses } from '../';
 import { ReportingCore } from '../../';
-import { JobStatus, ReportOutput } from '../../../common/types';
-
 import { ILM_POLICY_NAME } from '../../../common/constants';
-
+import { JobStatus, ReportOutput, ReportSource } from '../../../common/types';
 import { ReportTaskParams } from '../tasks';
-
-import { MIGRATION_VERSION, Report, ReportDocument, ReportSource } from './report';
+import { Report, ReportDocument, SavedReport } from './';
+import { IlmPolicyManager } from './ilm_policy_manager';
 import { indexTimestamp } from './index_timestamp';
 import { mapping } from './mapping';
-import { IlmPolicyManager } from './ilm_policy_manager';
+import { MIGRATION_VERSION } from './report';
 
 /*
  * When an instance of Kibana claims a report job, this information tells us about that instance
@@ -56,18 +54,6 @@ export interface ReportRecordTimeout {
   };
 }
 
-const checkReportIsEditable = (report: Report) => {
-  const { _id, _index, _seq_no, _primary_term } = report;
-  if (_id == null || _index == null) {
-    throw new Error(`Report is not editable: Job [${_id}] is not synced with ES!`);
-  }
-
-  if (_seq_no == null || _primary_term == null) {
-    throw new Error(
-      `Report is not editable: Job [${_id}] is missing _seq_no and _primary_term fields!`
-    );
-  }
-};
 /*
  * When searching for long-pending reports, we get a subset of fields
  */
@@ -215,7 +201,7 @@ export class ReportingStore {
     }
   }
 
-  public async addReport(report: Report): Promise<Report> {
+  public async addReport(report: Report): Promise<SavedReport> {
     let index = report._index;
     if (!index) {
       const timestamp = indexTimestamp(this.indexInterval);
@@ -229,7 +215,7 @@ export class ReportingStore {
 
       await this.refreshIndex(index);
 
-      return report;
+      return report as SavedReport;
     } catch (err) {
       this.logger.error(`Error in adding a report!`);
       this.logger.error(err);
@@ -242,10 +228,15 @@ export class ReportingStore {
    */
   public async findReportFromTask(
     taskJson: Pick<ReportTaskParams, 'id' | 'index'>
-  ): Promise<Report> {
+  ): Promise<SavedReport> {
     if (!taskJson.index) {
       throw new Error('Task JSON is missing index field!');
     }
+    if (!taskJson.id || !taskJson.index) {
+      const notRetrievable = new Error(`Unable to retrieve pending report: Invalid report ID!`);
+      this.logger.error(notRetrievable); // for stack trace
+      throw notRetrievable;
+    }
 
     try {
       const client = await this.getClient();
@@ -254,7 +245,7 @@ export class ReportingStore {
         id: taskJson.id,
       });
 
-      return new Report({
+      return new SavedReport({
         _id: document._id,
         _index: document._index,
         _seq_no: document._seq_no,
@@ -282,7 +273,7 @@ export class ReportingStore {
   }
 
   public async setReportClaimed(
-    report: Report,
+    report: SavedReport,
     processingInfo: ReportProcessingFields
   ): Promise<UpdateResponse<ReportDocument>> {
     const doc = sourceDoc({
@@ -291,12 +282,10 @@ export class ReportingStore {
     });
 
     try {
-      checkReportIsEditable(report);
-
       const client = await this.getClient();
       const { body } = await client.update<ReportDocument>({
         id: report._id,
-        index: report._index!,
+        index: report._index,
         if_seq_no: report._seq_no,
         if_primary_term: report._primary_term,
         refresh: true,
@@ -314,7 +303,7 @@ export class ReportingStore {
   }
 
   public async setReportFailed(
-    report: Report,
+    report: SavedReport,
     failedInfo: ReportFailedFields
   ): Promise<UpdateResponse<ReportDocument>> {
     const doc = sourceDoc({
@@ -323,12 +312,10 @@ export class ReportingStore {
     });
 
     try {
-      checkReportIsEditable(report);
-
       const client = await this.getClient();
       const { body } = await client.update<ReportDocument>({
         id: report._id,
-        index: report._index!,
+        index: report._index,
         if_seq_no: report._seq_no,
         if_primary_term: report._primary_term,
         refresh: true,
@@ -343,7 +330,7 @@ export class ReportingStore {
   }
 
   public async setReportCompleted(
-    report: Report,
+    report: SavedReport,
     completedInfo: ReportCompletedFields
   ): Promise<UpdateResponse<ReportDocument>> {
     const { output } = completedInfo;
@@ -357,12 +344,10 @@ export class ReportingStore {
     } as ReportSource);
 
     try {
-      checkReportIsEditable(report);
-
       const client = await this.getClient();
       const { body } = await client.update<ReportDocument>({
         id: report._id,
-        index: report._index!,
+        index: report._index,
         if_seq_no: report._seq_no,
         if_primary_term: report._primary_term,
         refresh: true,
@@ -376,19 +361,17 @@ export class ReportingStore {
     }
   }
 
-  public async prepareReportForRetry(report: Report): Promise<UpdateResponse<ReportDocument>> {
+  public async prepareReportForRetry(report: SavedReport): Promise<UpdateResponse<ReportDocument>> {
     const doc = sourceDoc({
       status: statuses.JOB_STATUS_PENDING,
       process_expiration: null,
     });
 
     try {
-      checkReportIsEditable(report);
-
       const client = await this.getClient();
       const { body } = await client.update<ReportDocument>({
         id: report._id,
-        index: report._index!,
+        index: report._index,
         if_seq_no: report._seq_no,
         if_primary_term: report._primary_term,
         refresh: true,

x-pack/plugins/reporting/server/lib/tasks/execute_report.ts

@@ -5,13 +5,13 @@
  * 2.0.
  */
 
-import { Writable, finished } from 'stream';
-import { promisify } from 'util';
 import { UpdateResponse } from '@elastic/elasticsearch/api/types';
 import moment from 'moment';
 import * as Rx from 'rxjs';
 import { timeout } from 'rxjs/operators';
-import { LevelLogger, getContentStream } from '../';
+import { finished, Writable } from 'stream';
+import { promisify } from 'util';
+import { getContentStream, LevelLogger } from '../';
 import { ReportingCore } from '../../';
 import {
   RunContext,
@@ -19,11 +19,11 @@ import {
   TaskRunCreatorFunction,
 } from '../../../../task_manager/server';
 import { CancellationToken } from '../../../common';
-import { ReportOutput } from '../../../common/types';
 import { durationToNumber, numberToDuration } from '../../../common/schema_utils';
+import { ReportOutput } from '../../../common/types';
 import { ReportingConfigType } from '../../config';
 import { BasePayload, RunTaskFn } from '../../types';
-import { Report, ReportDocument, ReportingStore } from '../store';
+import { Report, ReportDocument, ReportingStore, SavedReport } from '../store';
 import { ReportFailedFields, ReportProcessingFields } from '../store/store';
 import {
   ReportingTask,
@@ -113,7 +113,7 @@ export class ExecuteReportTask implements ReportingTask {
     return this.taskManagerStart;
   }
 
-  public async _claimJob(task: ReportTaskParams): Promise<Report> {
+  public async _claimJob(task: ReportTaskParams): Promise<SavedReport> {
     if (this.kibanaId == null) {
       throw new Error(`Kibana instance ID is undefined!`);
     }
@@ -122,14 +122,7 @@ export class ExecuteReportTask implements ReportingTask {
     }
 
     const store = await this.getStore();
-    let report: Report;
-    if (task.id && task.index) {
-      // if this is an ad-hoc report, there is a corresponding "pending" record in ReportingStore in need of updating
-      report = await store.findReportFromTask(task); // receives seq_no and primary_term
-    } else {
-      // if this is a scheduled report (not implemented), the report object needs to be instantiated
-      throw new Error('Could not find matching report document!');
-    }
+    const report = await store.findReportFromTask(task); // receives seq_no and primary_term
 
     // Check if this is a completed job. This may happen if the `reports:monitor`
     // task detected it to be a zombie job and rescheduled it, but it
@@ -163,7 +156,7 @@ export class ExecuteReportTask implements ReportingTask {
       process_expiration: expirationTime,
     };
 
-    const claimedReport = new Report({
+    const claimedReport = new SavedReport({
       ...report,
       ...doc,
     });
@@ -183,7 +176,10 @@ export class ExecuteReportTask implements ReportingTask {
     return claimedReport;
   }
 
-  private async _failJob(report: Report, error?: Error): Promise<UpdateResponse<ReportDocument>> {
+  private async _failJob(
+    report: SavedReport,
+    error?: Error
+  ): Promise<UpdateResponse<ReportDocument>> {
     const message = `Failing ${report.jobtype} job ${report._id}`;
 
     // log the error
@@ -250,7 +246,10 @@ export class ExecuteReportTask implements ReportingTask {
       .toPromise();
   }
 
-  public async _completeJob(report: Report, output: CompletedReportOutput): Promise<Report> {
+  public async _completeJob(
+    report: SavedReport,
+    output: CompletedReportOutput
+  ): Promise<SavedReport> {
     let docId = `/${report._index}/_doc/${report._id}`;
 
     this.logger.debug(`Saving ${report.jobtype} to ${docId}.`);
@@ -277,7 +276,7 @@ export class ExecuteReportTask implements ReportingTask {
   private getTaskRunner(): TaskRunCreatorFunction {
     // Keep a separate local stack for each task run
     return (context: RunContext) => {
-      let jobId: string | undefined;
+      let jobId: string;
       const cancellationToken = new CancellationToken();
 
       return {
@@ -289,7 +288,7 @@ export class ExecuteReportTask implements ReportingTask {
          * If any error happens, additional retry attempts may be picked up by a separate instance
          */
         run: async () => {
-          let report: Report | undefined;
+          let report: SavedReport | undefined;
 
           // find the job in the store and set status to processing
           const task = context.taskInstance.params as ReportTaskParams;
@@ -326,7 +325,7 @@ export class ExecuteReportTask implements ReportingTask {
           try {
             const stream = await getContentStream(this.reporting, {
               id: report._id,
-              index: report._index!,
+              index: report._index,
               if_primary_term: report._primary_term,
               if_seq_no: report._seq_no,
             });
@@ -335,8 +334,8 @@ export class ExecuteReportTask implements ReportingTask {
             stream.end();
             await promisify(finished)(stream, { readable: false });
 
-            report._seq_no = stream.getSeqNo();
-            report._primary_term = stream.getPrimaryTerm();
+            report._seq_no = stream.getSeqNo()!;
+            report._primary_term = stream.getPrimaryTerm()!;
 
             if (output) {
               this.logger.debug(`Job output size: ${stream.bytesWritten} bytes.`);
@@ -422,11 +421,11 @@ export class ExecuteReportTask implements ReportingTask {
     };
   }
 
-  public async scheduleTask(report: ReportTaskParams) {
+  public async scheduleTask(params: ReportTaskParams) {
     const taskInstance: ReportingExecuteTaskInstance = {
       taskType: REPORTING_EXECUTE_TYPE,
       state: {},
-      params: report,
+      params,
     };
 
     return await this.getTaskManagerStart().schedule(taskInstance);

x-pack/plugins/reporting/server/lib/tasks/index.ts

@@ -16,13 +16,9 @@ export { ExecuteReportTask } from './execute_report';
 export { MonitorReportsTask } from './monitor_reports';
 export { TaskRunResult };
 
-/*
- * The document created by Reporting to store as task parameters for Task
- * Manager to reference the report in .reporting
- */
 export interface ReportTaskParams<JobPayloadType = BasePayload> {
   id: string;
-  index?: string; // For ad-hoc, which as an existing "pending" record
+  index: string;
   payload: JobPayloadType;
   created_at: ReportSource['created_at'];
   created_by: ReportSource['created_by'];

x-pack/plugins/reporting/server/lib/tasks/monitor_reports.ts

@@ -12,7 +12,7 @@ import { TaskManagerStartContract, TaskRunCreatorFunction } from '../../../../ta
 import { numberToDuration } from '../../../common/schema_utils';
 import { ReportingConfigType } from '../../config';
 import { statuses } from '../statuses';
-import { Report } from '../store';
+import { SavedReport } from '../store';
 import { ReportingTask, ReportingTaskStatus, REPORTING_MONITOR_TYPE, ReportTaskParams } from './';
 
 /*
@@ -115,7 +115,7 @@ export class MonitorReportsTask implements ReportingTask {
             }
 
             // clear process expiration and set status to pending
-            const report = new Report({ ...recoveredJob, ...recoveredJob._source });
+            const report = new SavedReport({ ...recoveredJob, ...recoveredJob._source });
             await reportingStore.prepareReportForRetry(report); // if there is a version conflict response, this just throws and logs an error
 
             // clear process expiration and reschedule