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4 <title>Code coverage report for MySQLConnection.ts</title>
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18 <h1>
19 <a href="index.html">All files</a> MySQLConnection.ts
20 </h1>
21 <div class='clearfix'>
22 <div class='fl pad1y space-right2'>
23 <span class="strong">91.89% </span>
24 <span class="quiet">Statements</span>
25 <span class='fraction'>68/74</span>
26 </div>
27 <div class='fl pad1y space-right2'>
28 <span class="strong">83.33% </span>
29 <span class="quiet">Branches</span>
30 <span class='fraction'>25/30</span>
31 </div>
32 <div class='fl pad1y space-right2'>
33 <span class="strong">92.31% </span>
34 <span class="quiet">Functions</span>
35 <span class='fraction'>24/26</span>
36 </div>
37 <div class='fl pad1y space-right2'>
38 <span class="strong">93.15% </span>
39 <span class="quiet">Lines</span>
40 <span class='fraction'>68/73</span>
41 </div>
42 </div>
43 <p class="quiet">
44 Press <em>n</em> or <em>j</em> to go to the next uncovered block, <em>b</em>, <em>p</em> or <em>k</em> for the previous block.
45 </p>
46 </div>
47 <div class='status-line high'></div>
48<pre><table class="coverage">
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394<span class="cline-any cline-neutral">&nbsp;</span>
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399<span class="cline-any cline-neutral">&nbsp;</span>
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403<span class="cline-any cline-neutral">&nbsp;</span>
404<span class="cline-any cline-neutral">&nbsp;</span>
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406<span class="cline-any cline-neutral">&nbsp;</span>
407<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">// Copyright (C) 2017 Norman Breau
408&nbsp;
409// This program is free software: you can redistribute it and/or modify
410// it under the terms of the GNU General Public License as published by
411// the Free Software Foundation, either version 3 of the License, or
412// (at your option) any later version.
413&nbsp;
414// This program is distributed in the hope that it will be useful,
415// but WITHOUT ANY WARRANTY; without even the implied warranty of
416// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
417// GNU General Public License for more details.
418&nbsp;
419// You should have received a copy of the GNU General Public License
420// along with this program. If not, see &lt;http://www.gnu.org/licenses/&gt;.
421&nbsp;
422import {DatabaseConnection} from './DatabaseConnection';
423import {DatabaseQueryError} from './DatabaseQueryError';
424import {getInstance, getApplicationLogger} from './instance';
425import * as MySQL from 'mysql';
426import {Readable} from 'stream';
427&nbsp;
428const DEFAULT_HIGH_WATERMARK: number = 512; // in number of result objects
429&nbsp;
430export class MySQLConnection extends DatabaseConnection {
431 private transaction: boolean;
432 private _opened: boolean;
433&nbsp;
434 public constructor(connection: MySQL.PoolConnection, instantiationStack: string, isReadOnly: boolean = true) {
435 super(connection, isReadOnly, instantiationStack);
436&nbsp;
437 this._opened = true;
438 this.transaction = false;
439&nbsp;
440 connection.config.queryFormat = <span class="fstat-no" title="function not covered" >function(q</span>uery: string, values: any) {
441<span class="cstat-no" title="statement not covered" > if (!values) <span class="cstat-no" title="statement not covered" >return query;</span></span>
442&nbsp;
443<span class="cstat-no" title="statement not covered" > return query.replace(/:(\w+)/g, <span class="fstat-no" title="function not covered" >function(this: any, t</span>xt: string, key: string): string {</span>
444 // eslint-disable-next-line no-prototype-builtins
445<span class="cstat-no" title="statement not covered" > if (values.hasOwnProperty(key)) {</span>
446<span class="cstat-no" title="statement not covered" > return this.escape(values[key]);</span>
447 }
448<span class="cstat-no" title="statement not covered" > return txt;</span>
449 }.bind(this));
450 };
451 }
452&nbsp;
453 public isTransaction(): boolean {
454 return this.transaction;
455 }
456&nbsp;
457 public isOpen(): boolean {
458 return this._opened;
459 }
460&nbsp;
461 protected _query(query: string, params?: any): Promise&lt;any&gt; {
462 return new Promise((resolve, reject) =&gt; {
463 let queryObject: MySQL.Query = this.getAPI().query({
464 sql: query,
465 timeout: this.getTimeout()
466 }, params, (error: MySQL.MysqlError, results: any) =&gt; {
467 if (error) {
468 return reject(new DatabaseQueryError(queryObject.sql, error));
469 }
470&nbsp;
471 return resolve(results);
472 });
473 getApplicationLogger().trace(queryObject.sql);
474 });
475 }
476&nbsp;
477 protected _stream(query: string, params?: any, streamOptions?: any): Readable {
478 if (!streamOptions) {
479 streamOptions = {};
480 }
481&nbsp;
482 <span class="missing-if-branch" title="else path not taken" >E</span>if (!streamOptions.highWatermark) {
483 streamOptions.highWatermark = DEFAULT_HIGH_WATERMARK;
484 }
485&nbsp;
486 const queryObject: MySQL.Query = this.getAPI().query({
487 sql: query,
488 timeout: this.getTimeout()
489 }, params);
490&nbsp;
491 getApplicationLogger().trace(queryObject.sql);
492&nbsp;
493 return queryObject.stream(streamOptions);
494 }
495&nbsp;
496 public startTransaction(): Promise&lt;void&gt; {
497 if (this.isReadOnly()) {
498 return Promise.reject(new Error('A readonly connection cannot start a transaction.'));
499 }
500&nbsp;
501 if (this.isTransaction()) {
502 return Promise.reject(new Error('Connection is already in a transaction.'));
503 }
504&nbsp;
505 this.transaction = true;
506&nbsp;
507 return new Promise&lt;void&gt;((resolve, reject) =&gt; {
508 this.query('START TRANSACTION').then(() =&gt; {
509 resolve();
510 }).catch((ex) =&gt; {
511 this.transaction = false;
512 getApplicationLogger().error(ex);
513 reject(ex);
514 });
515 });
516 }
517&nbsp;
518 public endTransaction(requiresRollback: boolean = false): Promise&lt;void&gt; {
519 return (requiresRollback) ? this.rollback() : this.commit();
520 }
521&nbsp;
522 public rollback(): Promise&lt;void&gt; {
523 if (!this.isTransaction()) {
524 return Promise.reject(new Error('Cannot rollback when there is no active transaction.'));
525 }
526&nbsp;
527 return new Promise&lt;void&gt;((resolve, reject) =&gt; {
528 this.query('ROLLBACK').then(() =&gt; {
529 this.transaction = false
530 resolve();
531 }).catch((ex: any) =&gt; {
532 getApplicationLogger().error(ex);
533 reject(ex);
534 });
535 });
536 }
537&nbsp;
538 public commit(): Promise&lt;void&gt; {
539 if (!this.isTransaction()) {
540 return Promise.reject(new Error('Cannot commit when there is no active transaction.'));
541 }
542&nbsp;
543 return new Promise&lt;void&gt;((resolve, reject) =&gt; {
544 this.query('COMMIT').then(() =&gt; {
545 this.transaction = false;
546 resolve();
547 }).catch((ex: any) =&gt; {
548 getApplicationLogger().error(ex);
549 reject(ex);
550 });
551 });
552 }
553&nbsp;
554 protected _close(forceClose: boolean): Promise&lt;void&gt; {
555 if (!forceClose &amp;&amp; this.isTransaction()) {
556 return Promise.reject(new Error('Cannot close a connection while there is an active transaction. Use commit or rollback first.'));
557 }
558&nbsp;
559 this._opened = false;
560
561 return new Promise&lt;void&gt;((resolve, reject) =&gt; {
562 let rollbackPromise: Promise&lt;void&gt; = null;
563 if (forceClose) {
564 if (this.isTransaction()) {
565 rollbackPromise = this.rollback();
566 }
567 else {
568 rollbackPromise = Promise.resolve();
569 }
570 }
571 else {
572 rollbackPromise = Promise.resolve();
573 }
574&nbsp;
575 rollbackPromise.then(() =&gt; {
576 this.getAPI().release();
577 resolve();
578 }).catch((error: any) =&gt; {
579 getInstance().getLogger().error(error);
580 this.getAPI().release();
581 resolve();
582 });
583 });
584 }
585}
586&nbsp;</pre></td></tr>
587</table></pre>
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