ng2-query-ismi: app/query.service.ts annotate

annotate app/query.service.ts @ 9:402c7229dc7c

more query generation.

author	casties
date	Wed, 20 Jan 2016 11:32:31 +0100
parents	fa646ee46c19
children	66dce99cef4e

rev	line source
1 59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	1 import {Injectable} from 'angular2/core';
59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	2 import {Http, Headers} from 'angular2/http';
59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	3
59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	4 import 'rxjs/Rx'; // import all RxJS operators
59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	5
59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	6 import {QueryMode} from './query-mode';
5 b06a5d61afed new query state stuff. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 3 diff changeset	7 import {QueryState} from './query-state';
b06a5d61afed new query state stuff. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 3 diff changeset	8 import {QueryStep} from './query-step';
1 59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	9
59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	10 @Injectable()
59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	11 export class QueryService {
59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	12
9 402c7229dc7c more query generation. casties parents: 8 diff changeset	13 public neo4jBaseUrl = 'http://localhost:7474/db/data';
7 6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	14 public state: QueryState;
8 fa646ee46c19 more query generation. casties parents: 7 diff changeset	15 public ismiObjectTypes: any;
2 80270f5a5735 more tinkering. casties parents: 1 diff changeset	16
1 59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	17 public QUERY_MODES: QueryMode[] = [
59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	18 {id: 'type_is', label:'Object type is'},
59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	19 {id: 'att_contains', label: 'Attribute contains'}];
59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	20
5 b06a5d61afed new query state stuff. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 3 diff changeset	21 constructor(private _http: Http) {
7 6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	22 this.state = {
6 9f5473536a98 more query generation. casties parents: 5 diff changeset	23 'steps': [],
9f5473536a98 more query generation. casties parents: 5 diff changeset	24 'cypherQuery': '',
7 6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	25 'cypherParams': {},
6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	26 'results': [],
6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	27 'resultTypes': '',
6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	28 'numResults': 0
6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	29 };
6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	30 }
6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	31
8 fa646ee46c19 more query generation. casties parents: 7 diff changeset	32 setup() {
fa646ee46c19 more query generation. casties parents: 7 diff changeset	33 this.setupIsmiObjectTypes();
fa646ee46c19 more query generation. casties parents: 7 diff changeset	34 }
fa646ee46c19 more query generation. casties parents: 7 diff changeset	35
7 6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	36 getState() {
6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	37 return this.state;
5 b06a5d61afed new query state stuff. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 3 diff changeset	38 }
1 59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	39
59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	40 getQueryModes(): QueryMode[] {
59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	41 return this.QUERY_MODES;
59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	42 }
59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	43
3 c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	44 getQueryOptions(queryMode: QueryMode) {
1 59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	45 var options = ['a1', 'b1', 'c1'];
3 c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	46 if (queryMode.id === 'att_contains') {
9 402c7229dc7c more query generation. casties parents: 8 diff changeset	47 if (this.state.attributeCypherQuery) {
402c7229dc7c more query generation. casties parents: 8 diff changeset	48 var res = this.fetchCypherResult(this.state.attributeCypherQuery);
402c7229dc7c more query generation. casties parents: 8 diff changeset	49 res.subscribe(
402c7229dc7c more query generation. casties parents: 8 diff changeset	50 data => {
402c7229dc7c more query generation. casties parents: 8 diff changeset	51 console.debug("neo4j data=", data);
402c7229dc7c more query generation. casties parents: 8 diff changeset	52 var atts = data.results[0].data.map(elem => elem.row[0]).filter(elem => elem[0] != "_");
402c7229dc7c more query generation. casties parents: 8 diff changeset	53 console.debug("ismi attributes=", atts);
402c7229dc7c more query generation. casties parents: 8 diff changeset	54 },
402c7229dc7c more query generation. casties parents: 8 diff changeset	55 err => console.error("neo4j error=", err),
402c7229dc7c more query generation. casties parents: 8 diff changeset	56 () => console.debug('neo4j query Complete')
402c7229dc7c more query generation. casties parents: 8 diff changeset	57 );
402c7229dc7c more query generation. casties parents: 8 diff changeset	58 }
1 59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	59 options = ['d', 'e', 'f'];
3 c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	60 } else if (queryMode.id === 'type_is') {
c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	61 options = this.ismiObjectTypes;
1 59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	62 }
5 b06a5d61afed new query state stuff. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 3 diff changeset	63 console.debug("getQueryOptions returns: ", options);
b06a5d61afed new query state stuff. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 3 diff changeset	64 return options;
1 59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	65 }
59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	66
3 c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	67 setupIsmiObjectTypes() {
c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	68 var query = `MATCH (n) WITH DISTINCT labels(n) AS labels
c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	69 UNWIND labels AS label
c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	70 RETURN DISTINCT label ORDER BY label`;
c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	71
c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	72 var res = this.fetchCypherResult(query);
c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	73 res.subscribe(
c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	74 data => {
c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	75 console.debug("neo4j data=", data);
9 402c7229dc7c more query generation. casties parents: 8 diff changeset	76 this.ismiObjectTypes = data.results[0].data.map(elem => elem.row[0]).filter(elem => elem[0] != "_");
3 c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	77 console.debug("ismi types=", this.ismiObjectTypes);
c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	78 },
c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	79 err => console.error("neo4j error=", err),
c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	80 () => console.debug('neo4j query Complete')
c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	81 );
c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	82 }
c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	83
6 9f5473536a98 more query generation. casties parents: 5 diff changeset	84 setQueryStep(index: number, step: QueryStep) {
7 6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	85 this.state.steps[index] = step;
6 9f5473536a98 more query generation. casties parents: 5 diff changeset	86 this.createCypherQuery();
9f5473536a98 more query generation. casties parents: 5 diff changeset	87 }
9f5473536a98 more query generation. casties parents: 5 diff changeset	88
9f5473536a98 more query generation. casties parents: 5 diff changeset	89 createCypherQuery() {
9 402c7229dc7c more query generation. casties parents: 8 diff changeset	90 var resultCypher = '';
402c7229dc7c more query generation. casties parents: 8 diff changeset	91 var attCypher = '';
7 6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	92 var returnType = '';
9 402c7229dc7c more query generation. casties parents: 8 diff changeset	93 this.state.steps.forEach((step) => {
8 fa646ee46c19 more query generation. casties parents: 7 diff changeset	94 if (step.mode.id === 'type_is') {
9 402c7229dc7c more query generation. casties parents: 8 diff changeset	95 resultCypher = `MATCH (e:${step.objectType}) return e`;
8 fa646ee46c19 more query generation. casties parents: 7 diff changeset	96 returnType = 'node';
9 402c7229dc7c more query generation. casties parents: 8 diff changeset	97 attCypher = `MATCH (e:${step.objectType}) WITH DISTINCT keys(e) AS atts
402c7229dc7c more query generation. casties parents: 8 diff changeset	98 UNWIND atts AS att
402c7229dc7c more query generation. casties parents: 8 diff changeset	99 RETURN DISTINCT att ORDER BY att`;
8 fa646ee46c19 more query generation. casties parents: 7 diff changeset	100 }
9 402c7229dc7c more query generation. casties parents: 8 diff changeset	101 });
402c7229dc7c more query generation. casties parents: 8 diff changeset	102 this.state.resultCypherQuery = resultCypher;
402c7229dc7c more query generation. casties parents: 8 diff changeset	103 this.state.attributeCypherQuery = attCypher;
7 6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	104 this.state.resultTypes = returnType;
6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	105 }
6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	106
6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	107 updateQuery() {
6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	108 this.createCypherQuery();
9 402c7229dc7c more query generation. casties parents: 8 diff changeset	109 var query = this.state.resultCypherQuery;
7 6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	110 var params = this.state.cypherParams;
6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	111 var res = this.fetchCypherResult(query, params);
6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	112 res.subscribe(
6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	113 data => {
6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	114 console.debug("neo4j data=", data);
9 402c7229dc7c more query generation. casties parents: 8 diff changeset	115 this.state.results = data.results[0].data.map(elem => elem.row[0]);
7 6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	116 this.state.numResults = this.state.results.length;
6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	117 },
6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	118 err => console.error("neo4j error=", err),
6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	119 () => console.debug('neo4j query Complete')
6cd6c09032aa object type query with results! Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 6 diff changeset	120 );
6 9f5473536a98 more query generation. casties parents: 5 diff changeset	121 }
9f5473536a98 more query generation. casties parents: 5 diff changeset	122
3 c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	123 fetchCypherResult(query: string, params = {}) {
1 59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	124 var headers = new Headers();
2 80270f5a5735 more tinkering. casties parents: 1 diff changeset	125 headers.append('Authorization', 'Basic ' + btoa('neo4j' + ':' + 'neo5j'));
1 59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	126 headers.append('Content-Type', 'application/json');
59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	127 headers.append('Accept', 'application/json');
3 c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	128 // put headers in options
c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	129 var opts = {'headers': headers};
c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	130 // create POST data from query
9 402c7229dc7c more query generation. casties parents: 8 diff changeset	131 var data = JSON.stringify({'statements': [
402c7229dc7c more query generation. casties parents: 8 diff changeset	132 {'statement': query, 'parameters': params}
402c7229dc7c more query generation. casties parents: 8 diff changeset	133 ]});
3 c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	134 // make post request asynchronously
9 402c7229dc7c more query generation. casties parents: 8 diff changeset	135 var resp = this._http.post(this.neo4jBaseUrl+'/transaction/commit', data, opts)
3 c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	136 // filter result as JSON
c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	137 .map(res => res.json());
c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	138 // return Observable
c741a00d38de first list of object types :-) Robert Casties <casties@mpiwg-berlin.mpg.de> parents: 2 diff changeset	139 return resp;
1 59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	140 }
59b7c3afcc6b first interface and http request. Robert Casties <casties@mpiwg-berlin.mpg.de> parents: diff changeset	141 }

Mercurial > hg > ng2-query-ismi

annotate app/query.service.ts @ 9:402c7229dc7c