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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 {OpenaireProperties} from '../utils/properties/openaireProperties';
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import {SearchResult} from '../utils/entities/searchResult';
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import {RefineResultsUtils} from './servicesUtils/refineResults.class';
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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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@Injectable()
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export class SearchDatasetsService {
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private sizeOfDescription: number = 497;
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constructor(private http: Http, public _cache: CacheService) {}
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searchDatasets (params: string, refineParams:string, page: number, size: number, refineFields:string[] ):any {
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let link = OpenaireProperties.getSearchAPIURLLast()+"datasets";
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let url = link+"?";
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if(params!= null && params != '' ) {
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url += params;
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}
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if(refineParams!= null && refineParams != '' ) {
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url += refineParams;
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}
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url += "&page="+ (page-1) +"&size="+size+"&format=json";
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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));
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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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//.do(res => console.info(res))
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.map(res => [res['meta'].total, this.parseResults(res['results']),RefineResultsUtils.parse(res['refineResults'],refineFields)])
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.do(res => {
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this._cache.set(key, res);
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});
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}
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advancedSearchDatasets (params: string, page: number, size: number ):any {
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let url = OpenaireProperties.getSearchResourcesAPIURL();
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var basicQuery = "(oaftype exact result) and (resulttypeid exact dataset) "
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url += "?query=";
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if(params!= null && params != '' ) {
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url +=" ( "+basicQuery+ " ) " +" and (" + params + ")";
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}else{
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url +=" ( "+basicQuery+ " ) ";
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}
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url += "&page="+(page-1)+"&size="+size;
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url += "&format=json";
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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));
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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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//.do(res => console.info(res))
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.map(res => [res['meta'].total, this.parseResults(res['results'])])
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.do(res => {
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this._cache.set(key, res);
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});
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}
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searchDatasetsForEntity (params: string, page: number, size: number):any {
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let link = OpenaireProperties.getSearchAPIURLLast();
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let url = link+params+"/datasets"+"?format=json";
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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));
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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['meta'].total, this.parseResults(res['results'])])
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.do(res => {
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this._cache.set(key, res);
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});
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}
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searchDatasetsForDataproviders(params: string, page: number, size: number):any {
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let link = OpenaireProperties.getSearchAPIURLLast();
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let url = link+params+"&format=json";
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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));
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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['meta'].total, this.parseResults(res['results'])])
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.do(res => {
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this._cache.set(key, res);
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});
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}
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parseResults(data: any): SearchResult[] {
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let results: SearchResult[] = [];
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let length = Array.isArray(data) ? data.length : 1;
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for(let i=0; i<length; i++) {
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let resData = Array.isArray(data) ? data[i]['result']['metadata']['oaf:entity']['oaf:result'] : data['result']['metadata']['oaf:entity']['oaf:result'];
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var result: SearchResult = new SearchResult();
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result['title'] = {"name": '', "url": '', "accessMode": ''};
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if(Array.isArray(resData['title'])) {
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result['title'].name = resData['title'][0].content;
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} else {
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result['title'].name = resData['title'].content;
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}
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result['title'].url = OpenaireProperties.getsearchLinkToDataset();
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result['title'].url += Array.isArray(data) ? data[i]['result']['header']['dri:objIdentifier'] : data['result']['header']['dri:objIdentifier'];
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result['id'] = Array.isArray(data) ? data[i]['result']['header']['dri:objIdentifier'] : data['result']['header']['dri:objIdentifier'];
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if(resData['bestlicense'].hasOwnProperty("classid")) {
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result['title'].accessMode = resData['bestlicense'].classid;
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}
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if(resData['rels'].hasOwnProperty("rel")) {
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let relLength = Array.isArray(resData['rels']['rel']) ? resData['rels']['rel'].length : 1;
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for(let j=0; j<relLength; j++) {
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let relation = Array.isArray(resData['rels']['rel']) ? resData['rels']['rel'][j] : resData['rels']['rel'];
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if(relation.hasOwnProperty("to")) {
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if(relation['to'].class == "hasAuthor") {
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if(result['authors'] == undefined) {
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result['authors'] = new Array<{"name": string, "url": string}>();
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}
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result['authors'].push({"name": relation.fullname, "url": OpenaireProperties.getsearchLinkToPerson()+relation['to'].content});
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} else if(relation['to'].class == "isProducedBy") {
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if(result['projects'] == undefined) {
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result['projects'] = new Array<
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{ "url": string, "acronym": string, "title": string,
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"funderShortname": string, "funderName": string,
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"code": string
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}>();
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}
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let countProjects = result['projects'].length;
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result['projects'][countProjects] = {
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"url": "", "acronym": "", "title": "",
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"funderShortname": "", "funderName": "",
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"code": ""
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}
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result['projects'][countProjects]['url'] =
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OpenaireProperties.getsearchLinkToProject() + relation['to'].content;
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result['projects'][countProjects]['acronym'] = relation.acronym;
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result['projects'][countProjects]['title'] = relation.title;
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result['projects'][countProjects]['code'] = relation.code;
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if(relation.hasOwnProperty("funding")) {
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let fundingLength = Array.isArray(relation['funding']) ? relation['funding'].length : 1;
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for(let z=0; z<fundingLength; z++) {
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let fundingData = Array.isArray(relation['funding']) ? relation['funding'][z] : relation['funding'];
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if(fundingData.hasOwnProperty("funder")) {
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result['projects'][countProjects]['funderShortname'] = fundingData['funder'].shortname;
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result['projects'][countProjects]['funderName'] = fundingData['funder'].name;
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}
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}
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}
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}
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}
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}
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}
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result.year = resData.dateofacceptance.split('-')[0];
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if(!Array.isArray(resData.description)) {
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result.description = resData.description;
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} else {
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result.description = resData.description[0];
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}
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if(result.description.length > this.sizeOfDescription) {
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result.description = result.description.substring(0, this.sizeOfDescription)+"...";
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}
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result.embargoEndDate = resData.embargoenddate;
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if(!Array.isArray(resData.publisher)) {
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result.publisher = resData.publisher;
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} else {
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for(let i=0; i<resData.publisher.length; i++) {
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if(result.publisher != undefined){
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result.publisher += ', '+resData['publisher'][i];
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} else {
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result.publisher = resData['publisher'][i];
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}
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}
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}
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results.push(result);
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}
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return results;
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}
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numOfEntityDatasets(id: string, entity: string):any {
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//OpenaireProperties.getSearchAPIURLLast()
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//"http://rudie.di.uoa.gr:8080/dnet-functionality-services-2.0.0-SNAPSHOT/rest/v2/api/"
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let url = OpenaireProperties.getSearchAPIURLLast()+entity+id+"/datasets/count"+"?format=json";
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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));
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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.total)
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.do(res => {
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this._cache.set(key, res);
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});
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}
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numOfSearchDatasets(params: string):any {
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//OpenaireProperties.getSearchAPIURLLast()
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//"http://rudie.di.uoa.gr:8080/dnet-functionality-services-2.0.0-SNAPSHOT/rest/v2/api/"
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let url = OpenaireProperties.getSearchAPIURLLast()+"datasets/count?q="+params+"&format=json";
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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));
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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.total)
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.do(res => {
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this._cache.set(key, res);
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});
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}
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}
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