argos/dmp-backend/src/main/java/eu/eudat/managers/ExternalDatasetManager.java

package eu.eudat.managers;

import eu.eudat.dao.entities.ExternalDatasetDao;
import eu.eudat.entities.ExternalDataset;
import eu.eudat.models.criteria.ExternalDatasetCriteria;
import eu.eudat.models.externaldataset.ExternalDatasetTableRequest;
import eu.eudat.models.helpers.common.DataTableData;
import eu.eudat.models.externaldataset.ExternalDatasetListingModel;
import eu.eudat.proxy.config.exceptions.HugeResultSet;
import eu.eudat.proxy.config.exceptions.NoURLFound;
import eu.eudat.proxy.fetching.RemoteFetcher;
import eu.eudat.queryable.QueryableList;
import eu.eudat.utilities.builders.DomainModelConverter;

import java.util.List;
import java.util.UUID;

/**
 * Created by ikalyvas on 1/17/2018.
 */
public class ExternalDatasetManager {

    public DataTableData<ExternalDatasetListingModel> getPaged(ExternalDatasetDao externalDatasetDao, ExternalDatasetTableRequest externalDatasetTableRequest) throws Exception {
        QueryableList<ExternalDataset> items = externalDatasetDao.getWithCriteria(externalDatasetTableRequest.getCriteria());
        QueryableList<ExternalDataset> pagedItems = PaginationManager.applyPaging(items, externalDatasetTableRequest);
        List<ExternalDatasetListingModel> externalDatasetListingmodels = new DomainModelConverter<ExternalDataset, ExternalDatasetListingModel>().fromDataModel(pagedItems.toList(), ExternalDatasetListingModel.class);
        DataTableData<ExternalDatasetListingModel> externalDatasetDataTableData = new DataTableData<>();
        externalDatasetDataTableData.setData(externalDatasetListingmodels);
        externalDatasetDataTableData.setTotalCount(items.count());
        return externalDatasetDataTableData;
    }

    public List<ExternalDatasetListingModel> getWithExternal(ExternalDatasetDao externalDatasetDao , String query, RemoteFetcher remoteFetcher) throws HugeResultSet, NoURLFound, InstantiationException, IllegalAccessException {
        ExternalDatasetCriteria criteria = new ExternalDatasetCriteria();
        criteria.setLike(query);
        QueryableList<eu.eudat.entities.ExternalDataset> items = externalDatasetDao.getWithCriteria(criteria);
        List<ExternalDatasetListingModel> externalDatasets = new DomainModelConverter<eu.eudat.entities.ExternalDataset, ExternalDatasetListingModel>().fromDataModel(items.toList(), ExternalDatasetListingModel.class);
        return externalDatasets;
    }

    public ExternalDatasetListingModel getSingle(ExternalDatasetDao externalDatasetDao , UUID id) throws HugeResultSet, NoURLFound, InstantiationException, IllegalAccessException {
        ExternalDataset externalDataset = externalDatasetDao.find(id);
        ExternalDatasetListingModel externalDatasetModel = new ExternalDatasetListingModel();
        externalDatasetModel.fromDataModel(externalDataset);
        return externalDatasetModel;
    }
}