D-Net

    private sizeOfDescription: number = 270;

    public parsingFunctions: ParsingFunctions = new ParsingFunctions();

    constructor(private http: HttpClient ) {

    search (resultType:string, params: string, refineParams:string, page: number, size: number, sortBy: string, refineFields:string[] , properties:EnvProperties):any {

        let link = properties.searchAPIURLLAst+this.getEntityName(resultType,true);

        let url = link+"?";

        if(params!= null && params != ''  ) {

            url += params;

        }

        if(refineParams!= null && refineParams != ''  ) {

            url += refineParams;

        }

        if(sortBy) {

          url += "&sortBy=" + sortBy;

        }

        url += "&page="+(page-1)+"&size="+size+"&format=json";

        return this.http.get((properties.useCache)? (properties.cacheUrl+encodeURIComponent(url)): url)

                    .pipe(map(res => [res['meta'].total, this.parseResults(resultType, res['results'], properties),RefineResultsUtils.parse(res['refineResults'],refineFields, "publication")]));

    searchById (resultType:string, id: string, properties:EnvProperties ):any {

        let url = properties.searchAPIURLLAst+this.getEntityName(resultType,true) +"/"+id+"?format=json";

        return this.http.get((properties.useCache)? (properties.cacheUrl+encodeURIComponent(url)): url)

                    .pipe(map(res =>  this.parseResults(resultType, res, properties)));

    searchAggregators (resultType:string, id: string, params: string, refineParams:string, page: number, size: number, properties:EnvProperties ):any {

        let link = properties.searchAPIURLLAst+this.getEntityName(resultType,true);

        let url = link+"?"+"&format=json";

        if(params!= null && params != ''  ) {

            url += params;

        }

        if(refineParams!= null && refineParams != ''  ) {

            url += refineParams;

        }

        url += "&page="+(page-1)+"&size="+size;

        return this.http.get((properties.useCache)? (properties.cacheUrl+encodeURIComponent(url)): url)

                    .pipe(map(res => this.parseRefineResults(id, res['refineResults'])));

    searchByListOfDOI (resultType:string, DOIs: string[], refineParams:string, page: number, size: number, refineFields:string[], properties:EnvProperties ):any {

        let link = properties.searchAPIURLLAst+ this.getEntityName(resultType,true);

        let url = link+"?"+"&format=json&";

        var doisParams = "";

        for(var i =0 ;i < DOIs.length; i++){

          doisParams+=(doisParams.length > 0?"&":"")+'doi="'+ DOIs[i]+'"';

        }

        if(doisParams.length > 0){

          url +="&"+doisParams;

        }

        if(refineParams!= null && refineParams != ''  ) {

            url += refineParams;

        }

        url += "&page="+(page-1)+"&size="+size;

        return this.http.get((properties.useCache)? (properties.cacheUrl+encodeURIComponent(url)): url)

                    .pipe(map(res => [res['meta'].total, this.parseResults(resultType, res['results'], properties),RefineResultsUtils.parse(res['refineResults'],refineFields, "publication")]));

    advancedSearch (resultType:string, params: string, page: number, size: number, sortBy: string, properties:EnvProperties, refineParams:string=null,  refineFields:string[] =null, refineQuery:string = null ):any {

      let url = properties.searchResourcesAPIURL;

      var basicQuery = "(oaftype exact result) and (resulttypeid exact "+this.getEntityName(resultType,false) + ") ";

      url += "?query=";

      if(params!= null && params != ''  ) {

        url +=" ( "+basicQuery+ " ) " +" and (" + params + ")";

      }else{

        url +=" ( "+basicQuery+ " ) ";

      }

      if(refineParams!= null && refineParams != ''  ) {

        url += refineParams;

      }

      if(sortBy) {

        let sortOptions = sortBy.split(",");

        url += "sortBy "+sortOptions[0]+"/sort."+sortOptions[1]+" ";

      }

      if(refineQuery) {

        url += "&" + refineQuery;

      }

      url += "&page="+(page-1)+"&size="+size;

      url += "&format=json";

      return this.http.get((properties.useCache)? (properties.cacheUrl+encodeURIComponent(url)): url)

      .pipe(map(res => [res['meta'].total, this.parseResults(resultType, res['results'], properties),RefineResultsUtils.parse(res['refineResults'],refineFields, "publication")]));

  advancedSearchResults (resultType:string, params: string, page: number, size: number, sortBy: string, properties:EnvProperties, refineParams:string=null,  refineFields:string[] =null, refineQuery:string = null ):any {

    let url = properties.searchAPIURLLAst+"resources2/?format=json";

    if(params!= null && params != ''  ) {

      url +="&query=(" + params + ")";

    if(sortBy) {

      url += (params ? " " : "&query=(*) ")+"sortBy "+sortOptions[0]+"/sort."+sortOptions[1]+(params ? " " : " ");

    if(refineParams!= null && refineParams != ''  ) {

    if(refineQuery) {

    url += "&page="+(page-1)+"&size="+size;

    return this.http.get((properties.useCache)? (properties.cacheUrl+encodeURIComponent(url)): url)

      .pipe(map(res => [res['meta'].total, this.parseResults(resultType, res['results'], properties),RefineResultsUtils.parse(res['refineResults'],refineFields, "publication")]));

    searchResultForEntity (resultType:string, params: string, page: number, size: number, properties:EnvProperties):any {

        let link = properties.searchAPIURLLAst;

        //let url = link+params+"/"+this.getEntityName(resultType,true)+ "?format=json";

        //url += "&page="+(page-1)+"&size="+size;

        //url += "&sortBy=resultdateofacceptance,descending";

        //let url = link+"/resources2?format=json&query="+params+" sortBy resultdateofacceptance/sort.descending&type="+this.getEntityName(resultType,true);

        let url = link+"/"+this.getEntityName(resultType,true);

        url += "?format=json";

        url += "&fq="+params;

        url += "&sortBy=resultdateofacceptance,descending";

        url += "&page="+(page-1)+"&size="+size;

        return this.http.get((properties.useCache)? (properties.cacheUrl+encodeURIComponent(url)): url)

                    .pipe(map(res => [res['meta'].total, this.parseResults(resultType, res['results'], properties)]));

    }

    searchForDataproviders(resultType:string, params: string, page: number, size: number, properties:EnvProperties):any {

        let link = properties.searchAPIURLLAst;

        let url = link+params;

        url += "&sortBy=resultdateofacceptance,descending";

        url += "&page="+(page-1)+"&size="+size + "&format=json";

        return this.http.get((properties.useCache)? (properties.cacheUrl+encodeURIComponent(url)): url)

                    .pipe(map(res => [res['meta'].total, this.parseResults(resultType, res['results'], properties)]));

  searchForMyOrcidLinks (resultType:string, orcidQuery: string, typeQuery: string, page: number, size: number):any {

    let url = properties.searchAPIURLLAst+"resources2/?format=json";

    if(orcidQuery!= null && orcidQuery != ''  ) {

      url +="&query=(" + orcidQuery + ")";

    }

    url += "&page="+(page-1)+"&size="+size;

    return this.http.get((properties.useCache)? (properties.cacheUrl+encodeURIComponent(url)): url)

    parseResults(resultType:string, data: any, properties: EnvProperties): SearchResult[] {

        let results: SearchResult[] = [];

        let length = Array.isArray(data) ? data.length : 1;

        for(let i=0; i<length; i++) {

            let resData = Array.isArray(data) ? data[i]['result']['metadata']['oaf:entity']['oaf:result'] : data['result']['metadata']['oaf:entity']['oaf:result'];

            var result: SearchResult = new SearchResult();

            if(resData['resulttype']) {

              result.entityType = resData['resulttype']['classname'];

            } else {

              result.entityType = resultType;

            result.types = new Array<string>();

            let types = new Set<string>();

            let instance;

            let length = Array.isArray(resData['children']['instance']) ? resData['children']['instance'].length : 1;

            for(let i=0; i<length; i++) {

              instance = Array.isArray(resData['children']['instance']) ? resData['children']['instance'][i] : resData['children']['instance'];

              this.parsingFunctions.parseTypes(result.types, types, instance);

            }

            /////////////////////////// Athena Code ///////////////////////////

            if(resData['pid']) {

              if(!Array.isArray(resData['pid'])) {

                if(resData['pid'].classid && resData['pid'].classid == 'doi'){

                  if(resData['pid'].content != '' && resData['pid'].content != null){

                    result.DOIs.push(resData['pid'].content.replace("https://doi.org/",""));

                  }

                }

              } else {

                for(let i=0; i<resData['pid'].length; i++){

                  if(resData['pid'][i].classid == 'doi'){

                    if(resData['pid'][i].content != '' && resData['pid'][i].content != null){

                      result.DOIs.push(resData['pid'][i].content.replace("https://doi.org/",""));

                    }

                  }

                }

              result.identifiers = this.parsingFunctions.parseIdentifiers(resData['pid']);

            /////////////////////////// Athena Code ///////////////////////////

            if(resData['programmingLanguage'] && resData['programmingLanguage'] != null) {

              result.programmingLanguages = new Array<string>();

              if(!Array.isArray(resData['programmingLanguage'])) {

                if(resData['programmingLanguage'].classname != "Undetermined" && resData['programmingLanguage'].classname) {

                  result.programmingLanguages.push(resData['programmingLanguage'].classname);

                }

              } else {

                for(let i=0; i<resData['programmingLanguage'].length; i++) {

                  if(resData['programmingLanguage'][i].classname != "Undetermined" && resData['programmingLanguage'][i].classname) {

                    result.programmingLanguages.push(resData['programmingLanguage'][i].classname);

                  }

                }

              }

            if(resData['language'] && resData['language'] != null) {

              result.languages = new Array<string>();

              if(!Array.isArray(resData['language'])) {

                if(resData['language'].classname != "Undetermined" && resData['language'].classname) {

                  result.languages.push(resData['language'].classname);

                }

              } else {

                for(let i=0; i<resData['language'].length; i++) {

                  if(resData['language'][i].classname != "Undetermined" && resData['language'][i].classname) {

                    result.languages.push(resData['language'][i].classname);

                  }

                }

              }

            if(resData['country'] && resData['country'] != null) {

              result.countriesForResults = new Array<string>();

              if(!Array.isArray(resData['country'])) {

                if(resData['country'].classname != "Undetermined" && resData['country'].classname) {

                  result.countriesForResults.push(resData['country'].classname);

                }

              } else {

                for(let i=0; i<resData['country'].length; i++) {

                  if(resData['country'][i].classname != "Undetermined" && resData['country'][i].classname) {

                    result.countriesForResults.push(resData['country'][i].classname);

                  }

                }

              }

            result['title'] = {"name": '', "accessMode": '', "sc39": ''};

            if(Array.isArray(resData['title'])) {

              for(let i=0; i<resData['title'].length; i++) {

                if(resData['title'][i] && resData['title'][i].content) {

                  if(!result.title.name || resData['title'][i].classid == "main title") {

                    result['title'].name = String(resData['title'][i].content);

                  }

                  if(resData['title'][i].classid == "main title") {

                    break;

                  }

                }

              }

              if(!result.title.name) {

                result['title'].name = "";

              }

                // result['title'].name = (resData['title'][0] && resData['title'][0].content) ? String(resData['title'][0].content) : "";

            } else {

                result['title'].name = (resData['title'] && resData['title'].content) ? String(resData['title'].content) : "";

            result['id'] = Array.isArray(data) ? data[i]['result']['header']['dri:objIdentifier'] : data['result']['header']['dri:objIdentifier'];

            let canId = ParsingFunctions.parseRelCanonicalId(Array.isArray(data) ? data[i] : data, "result");

            if(canId){

                result['id'] = canId;

            result['relcanId'] = result['id'];

            if(resData['bestaccessright'] && resData['bestaccessright'].hasOwnProperty("classname")) {

                result['title'].accessMode = resData['bestaccessright'].classname;

            if(resData['rels'].hasOwnProperty("rel")) {

                let relLength = Array.isArray(resData['rels']['rel']) ? resData['rels']['rel'].length : 1;

                for(let j=0; j<relLength; j++) {

                    let relation = Array.isArray(resData['rels']['rel']) ? resData['rels']['rel'][j] : resData['rels']['rel'];

                    if(relation.hasOwnProperty("to")) {

                        if(relation['to'].class == "isProducedBy") {

                            result['projects'] = this.parseProjects(result['projects'], relation);

                        }

                    }

                }

            }

            if(resData.hasOwnProperty("creator") && resData['creator'] != null) {

              if(result['authors'] == undefined) {

                result['authors'] = new Array<{"fullName": string, "orcid": string, "orcid_pending": string}>();

              }

              let authors = resData['creator'];

              let length = Array.isArray(authors) ? authors.length : 1;

              for(let i=0; i<length; i++) {

                let author = Array.isArray(authors) ? authors[i] : authors;

                if(author) {

                  result['authors'][author.rank] = {"fullName": author.content, "orcid": author.orcid, "orcid_pending": author.orcid_pending};

                }

              }

              result.authors = result.authors.filter(function (item) {

                return (item != undefined && item.fullName != undefined);

              });

            }

            var date:string = (resData.dateofacceptance)+""; // transform to string in case it is an integer

            result.year = (date && (date).indexOf('-') !== -1)?date.split('-')[0]:date;

            if(!Array.isArray(resData.description)) {

                result.description = (resData.description) ? String(resData.description) : "";

            } else {

                result.description = (resData.description[0]) ? String(resData.description[0]) : "";

            }

            if(result.description && result.description.length > this.sizeOfDescription) {

                result.description = result.description.substring(0, this.sizeOfDescription) + "...";

            }

            if(resData.embargoenddate && resData.embargoenddate != '') {

              result.embargoEndDate = Dates.getDate(resData.embargoenddate);

            }

            if(!Array.isArray(resData.publisher)) {

              result.publisher = resData.publisher;

            } else {

              for(let i=0; i<resData.publisher.length; i++) {

                if(result.publisher != undefined){

                  result.publisher += ', '+resData['publisher'][i];

                } else {

                  result.publisher = resData['publisher'][i];

                }

              }

            }

            results.push(result);

        return results;

    }

    parseProjects(projects: { "id": string, "acronym": string, "title": string,

                              "funderShortname": string, "funderName": string,

                              "code": string }[], relation: any ) :  {

                              "id": string, "acronym": string, "title": string,

                              "funderShortname": string, "funderName": string,

                              "code": string }[] {

      if(projects == undefined) {

          projects = new Array<

              { "id": string, "acronym": string, "title": string,

                "funderShortname": string, "funderName": string,

                "code": string

              }>();

      let countProjects = projects.length;

      projects[countProjects] = {

          "id": "", "acronym": "", "title": "",

          "funderShortname": "", "funderName": "",

          "code": ""

      };

      if(relation.title != 'unidentified') {

          projects[countProjects]['id'] = relation['to'].content;

          projects[countProjects]['acronym'] = relation.acronym;

          projects[countProjects]['title'] = relation.title;

          projects[countProjects]['code'] = relation.code;

          projects[countProjects]['id'] = "";

          projects[countProjects]['acronym'] = "";

          projects[countProjects]['title'] = "";

          projects[countProjects]['code'] = "";

      if(relation.hasOwnProperty("funding")) {

          let fundingLength = Array.isArray(relation['funding']) ? relation['funding'].length : 1;

          for(let z=0; z<fundingLength; z++) {

              let fundingData = Array.isArray(relation['funding']) ? relation['funding'][z] : relation['funding'];

              if(fundingData.hasOwnProperty("funder")) {

                  projects[countProjects]['funderShortname'] = fundingData['funder'].shortname;

                  projects[countProjects]['funderName'] = fundingData['funder'].name;

              }

      return projects;

    parseRefineResults(id: string, data: any): any {

        var results:any = [];

        if(data.hasOwnProperty("resulthostingdatasource")) {

            let length = Array.isArray(data['resulthostingdatasource']) ? data['resulthostingdatasource'].length : 1;

            for(let i=0; i<length; i++) {

                let datasource = Array.isArray(data['resulthostingdatasource']) ? data['resulthostingdatasource'][i] : data['resulthostingdatasource'];

                let result: {"name": string, "id": string, "count": number} = {"name": "", "id": "", "count": 0};

                result['name'] = datasource.name;

                result['id'] = datasource.id.split("||")[0];

                result['count'] = datasource.count;

                if(result['id'] != id && result['name'] != "Unknown Repository") {

                    results.push(result);

                }

            }

        return results;

    private numOfResults(url: string, properties:EnvProperties): any {

      return this.http.get((properties.useCache)? (properties.cacheUrl+encodeURIComponent(url)): url)

                  .pipe(map(res => res['total']));

    numOfEntityResults(resultType:string, id: string, entity: string, properties:EnvProperties):any {

        var parameters: string = "";

        parameters = this.getEntityName(entity, true) + "/"+id+"/"+this.getEntityName(resultType, true)+"/count";

        let url = properties.searchAPIURLLAst+parameters+"?format=json";

        return this.numOfResults(url , properties);

    }

  numOfResearchOutcomes( params: string, properties:EnvProperties, refineParams:string=null):any {

    let url = properties.searchAPIURLLAst+"resources2/?format=json&size=0&type=results";

    if(params.length > 0){

    if(refineParams!= null && refineParams != ''  ) {

    return this.http.get((properties.useCache)? (properties.cacheUrl+encodeURIComponent(url)): url)

    numOfSearchResults(resultType:string, params: string, properties:EnvProperties, refineParams:string=null):any {

        let url = properties.searchAPIURLLAst+this.getEntityName(resultType, true)+"/count?format=json";

        if(params.length > 0){

          var DOIs:string[] = DOI.getDOIsFromString(params);

          var doisParams = "";

          for(var i =0 ;i < DOIs.length; i++){

            doisParams+=(doisParams.length > 0?"&":"")+'doi="'+ DOIs[i]+'"';

          }

          if(doisParams.length > 0){

            url += "&"+doisParams;

          }else{

            url += "&q=" + StringUtils.URIEncode(params);

          }

        }

        if(refineParams!= null && refineParams != ''  ) {

            url += refineParams;

        }

        return this.numOfResults(url, properties);

  numOfSearchResultsLinkedToPub(resultType:string, properties:EnvProperties):any {

    let url = properties.searchAPIURLLAst+"resources?query="+encodeURIComponent("( (oaftype exact result) and (resulttypeid exact "+resultType+") and (relresulttype=publication)  )")+"&page=0&size=0&format=json";

    return this.http.get((properties.useCache)? (properties.cacheUrl+encodeURIComponent(url)): url)

    countTotalResults(resultType:string,  properties:EnvProperties, refineParams:string=null):any {

      let url = properties.searchAPIURLLAst+this.getEntityName(resultType, true)+"/count?format=json"+refineParams;

      return this.numOfResults(url, properties);

    }

/*

    private quote(word: any): string {

        return '"'+word+'"';

    }

*/

    private getEntityName (entityType:string, plural:boolean){

      if(entityType == "publication" ||entityType == "dataset" || entityType == "organization" || entityType == "datasource" || entityType == "project" ){

        if(plural){

          return entityType+ "s";

        }else{

          return entityType;

        }

      }else{