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import {Injectable} from '@angular/core';
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import {Http, Response} from '@angular/http';
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import {Observable} from 'rxjs/Observable';
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import {AutoCompleteValue} from '../searchPages/searchUtils/searchHelperClasses.class';
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import {OpenaireProperties} from '../utils/properties/openaireProperties';
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import 'rxjs/add/observable/of';
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import 'rxjs/add/operator/do';
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import 'rxjs/add/operator/share';
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import { CacheService } from '../shared/cache.service';
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import {RefineResultsUtils} from './servicesUtils/refineResults.class';
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@Injectable()
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export class RefineFieldResultsService {
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// scoobydoo.di.uoa.gr:8181/dnet-functionality-services-2.0.0-SNAPSHOT/rest/v2/api/projects?refine=true&fields=funderid&page=1&size=0
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constructor(private http: Http, public _cache: CacheService) {}
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getRefineFieldsResultsByEntityName(fields:string[], entityName:string):any{
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let link = OpenaireProperties.getSearchAPIURLForEntity(entityName)+"?format=json&refine=true&page=1&size=0";
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for(var i=0; i < fields.length; i++){
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link += "&fields="+fields[i];
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}
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let key = link;
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if (this._cache.has(key)) {
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return Observable.of(this._cache.get(key)).do(res => console.log(res['meta'])).map(res => [res['meta'].total, RefineResultsUtils.parse(res['refineResults'],fields, entityName)]).do(res => console.log(res));
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}
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return this.http.get(link)
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.map(res => <any> res.json())
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.do(res => {
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this._cache.set(key, res);
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})
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.map(res => [res['meta'].total, RefineResultsUtils.parse(res['refineResults'],fields, entityName)]);
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}
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getRefineFieldResultsByFieldName(fieldName:string, entityName:string):any{
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let link = OpenaireProperties.getSearchAPIURLForEntity(entityName)+"?fields="+fieldName + "&format=json";
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return this.getField(link,fieldName)
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}
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getField (link:string,fieldName:string):any{
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let url = link+"&refine=true&page=1&size=0";
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let key = url;
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if (this._cache.has(key)) {
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return Observable.of(this._cache.get(key)).map(res => this.parse(res,fieldName));
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}
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return this.http.get(url)
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.map(res => <any> res.json())
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.map(res => res['refineResults'])
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.do(res => {
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this._cache.set(key, res);
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})
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.map(res => this.parse(res,fieldName));
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}
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parse(data: any,fieldName:string):any {
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var values:AutoCompleteValue[] = [];
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if(data){
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let field = data[fieldName];
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for(let i=0; i<field.length; i++) {
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var value:AutoCompleteValue = new AutoCompleteValue();
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value.label = field[i].name;
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value.id = field[i].id;
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values.push(value);
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}
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}
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return values;
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}
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private handleError (error: Response) {
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// in a real world app, we may send the error to some remote logging infrastructure
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// instead of just logging it to the console
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console.log(error);
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return Observable.throw(error || 'Server error');
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}
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}
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