Mercurial > hg > ng2-query-ismi

annotate app/query.service.ts @ 1:59b7c3afcc6b

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first interface and http request.
author Robert Casties <casties@mpiwg-berlin.mpg.de>
date Mon, 11 Jan 2016 19:25:53 +0100
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children 80270f5a5735
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59b7c3afcc6b first interface and http request.
Robert Casties <casties@mpiwg-berlin.mpg.de>
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1 import {Injectable} from 'angular2/core';
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2 import {Http, Headers} from 'angular2/http';
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3
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4 import 'rxjs/Rx'; // import all RxJS operators
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5
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6 import {QueryMode} from './query-mode';
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7
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8 @Injectable()
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9 export class QueryService {
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10
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11 public QUERY_MODES: QueryMode[] = [
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12 {id: 'type_is', label:'Object type is'},
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13 {id: 'att_contains', label: 'Attribute contains'}];
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14
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15 constructor(private _http: Http) {}
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16
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17 getQueryModes(): QueryMode[] {
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18 return this.QUERY_MODES;
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19 }
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20
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21 getQueryOptions(queryMode: string) {
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22 var options = ['a1', 'b1', 'c1'];
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23 if (queryMode == 'Attribute contains') {
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24 options = ['d', 'e', 'f'];
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25 }
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26 return Promise.resolve(options);
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27 }
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28
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29 getIsmiObjectTypes() {
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30 var headers = new Headers();
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31 headers.append('Authorization', 'Basic ' + btoa('neo4j'+':'+'neo5j'));
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32 headers.append('Content-Type', 'application/json');
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33 headers.append('Accept', 'application/json');
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34 var data = {
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35 'query': `MATCH (n)
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36 WITH DISTINCT labels(n) AS labels
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37 UNWIND labels AS label
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38 RETURN DISTINCT label
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39 ORDER BY label`,
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40 'params': {}
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41 };
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42
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43 console.debug("http:", this._http, " headers:", headers, " data:", data);
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44
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45 var post = this._http.post('http://localhost:7474/db/data/cypher/', JSON.stringify(data), {'headers': headers});
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46 console.debug("post:", post);
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47 var map = post.map(res => res.json());
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48 console.debug("map:", map);
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49 map.subscribe(
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50 data => console.debug("neo4j data=", data),
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51 err => console.error("neo4j error=", err),
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52 () => console.debug('neo4j query Complete')
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53 );
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54 }
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55 }