D-Net

package eu.dnetlib.data.bulktag;

import com.google.common.collect.Lists;

import com.google.common.collect.Maps;

import com.google.gson.Gson;

import org.apache.commons.logging.Log;

import org.apache.commons.logging.LogFactory;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import java.util.stream.Collectors;

/**

 * Created by miriam on 02/08/2018.

 */

public class CommunityConfiguration {

    private static final Log log = LogFactory.getLog(CommunityConfiguration.class);

    enum MapModes{

        SUBJECT_MAP,

        DATASOURCE_MAP,

        ZENODO_COMMUNITY_MAP

    }

    private Map<String,Community> communities;

    //map subject -> communityid

    private transient Map<String,List<Pair<String,SelectionCriteria>>> subjectMap = new HashMap<>();

    //map datasourceid -> communityid

    private transient Map<String,List<Pair<String,SelectionCriteria>>> datasourceMap = new HashMap<>();

    //map zenodocommunityid -> communityid

    private transient Map<String,List<Pair<String,SelectionCriteria>>> zenodocommunityMap = new HashMap<>();

    public CommunityConfiguration(final Map<String, Community> communities) {

        this.communities = communities;

        init();

    }

    public void init() {

        if (subjectMap == null) {

            subjectMap = Maps.newHashMap();

        }

        if (datasourceMap == null) {

            datasourceMap = Maps.newHashMap();

        }

        if (zenodocommunityMap == null) {

            zenodocommunityMap = Maps.newHashMap();

        }

        for(Community c : getCommunities().values()) {

            //get subjects

            final String id = c.getId();

            for(String sbj : c.getSubjects()){

                Pair<String,SelectionCriteria> p = new Pair<>(id,new SelectionCriteria(null));

                add(sbj.toLowerCase().trim() , p, subjectMap);

            }

            //get datasources

            for(Datasource d: c.getDatasources()){

                add(d.getOpenaireId(),new Pair<>(id,d.getSelCriteria()),datasourceMap);

            }

            //get zenodo communities

            for(ZenodoCommunity zc : c.getZenodoCommunities()){

                add(zc.getZenodoCommunityId(),new Pair<>(id,zc.getSelCriteria()),zenodocommunityMap);

            }

        }

    }

    private void add(String key,Pair<String,SelectionCriteria> value, Map<String,List<Pair<String,SelectionCriteria>>> map){

        List<Pair<String,SelectionCriteria>> values = map.get(key);

        if (values == null){

            values = new ArrayList<>();

            map.put(key,values);

        }

        values.add(value);

    }

    public List<Pair<String,SelectionCriteria>> getCommunityForSubject(String sbj){

        return subjectMap.get(sbj);

    }

    public List<Pair<String,SelectionCriteria>> getCommunityForDatasource(String dts){

        return datasourceMap.get(dts);

    }

    public List<Pair<String,SelectionCriteria>> getCommunityForZenodoCommunity(String zc){

        return zenodocommunityMap.get(zc);

    }

    public List<String> getCommunityForSubjectValue(String value) {

        return getContextIds(subjectMap.get(value));

    }

    public List<String> getCommunityForDatasourceValue(String value) {

        return getContextIds(datasourceMap.get(value.toLowerCase()));

    }

    public List<String> getCommunityForZenodoCommunityValue(String value){

        return getContextIds(zenodocommunityMap.get(value.toLowerCase()));

    }

    private List<String> getContextIds(List<Pair<String, SelectionCriteria>> list) {

        if (list != null) {

            return list.stream().map(p -> p.getFst()).collect(Collectors.toList());

        }

        return Lists.newArrayList();

    }

    /*

    public SelectionCriteria getSelCriteria(String value, String community, MapModes map_mode){

        Map<String,List<Pair<String,SelectionCriteria>>> map = null;

        if(map_mode == MapModes.DATASOURCE_MAP)

            map = datasourceMap;

        else

        if(map_mode == MapModes.ZENODO_COMMUNITY_MAP)

            map = zenodocommunityMap;

        else

            new Throwable("Impossible to have Selection Criteria over subjects");

        List<Pair<String, SelectionCriteria>> lst = map.get(value);

        List<SelectionCriteria> selectionList = lst.stream().map(p -> {

            if (p.fst == community)

                return p.snd;

            return null;

        }).collect(Collectors.toList());//for each community there will be only one Selection Criteria per datasource or zenodo community

        if(selectionList != null)

            if (selectionList.size()>0)

                return selectionList.get(0);

        return null;

    }

    */

    public Map<String, Community> getCommunities() {

        return communities;

    }

    public void setCommunities(Map<String, Community> communities) {

        this.communities = communities;

    }

    public String toJson() {

        final Gson g = new Gson();

        return g.toJson(this);

    }

    public int size() {

        return communities.keySet().size();

    }

    public Community getCommunityById(String id){

        return communities.get(id);

    }

    public List<Community> getCommunityList() {

        return Lists.newLinkedList(communities.values());

    }

}