001/*
002 * Copyright 2020 Global Biodiversity Information Facility (GBIF)
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.gbif.api.util.iterables;
017
018import org.gbif.api.model.common.paging.PagingRequest;
019import org.gbif.api.model.common.paging.PagingResponse;
020import org.gbif.api.model.registry.search.DatasetSearchRequest;
021import org.gbif.api.model.registry.search.DatasetSearchResult;
022import org.gbif.api.service.registry.DatasetSearchService;
023
024import javax.annotation.Nullable;
025
026/**
027 * Pages through all datasets search results.
028 */
029public class DatasetSearchResultsPager extends BasePager<DatasetSearchResult> {
030
031    private final DatasetSearchService datasetSearchService;
032    private final DatasetSearchRequest datasetSearchRequest;
033
034    public DatasetSearchResultsPager(DatasetSearchService datasetSearchService,
035                                     @Nullable DatasetSearchRequest datasetSearchRequest,
036                                     int pageSize) {
037      super(pageSize);
038      this.datasetSearchService = datasetSearchService;
039      this.datasetSearchRequest = datasetSearchRequest;
040    }
041
042    @Override
043    public PagingResponse<DatasetSearchResult> nextPage(PagingRequest page) {
044      datasetSearchRequest.copyPagingValues(page);
045      return datasetSearchService.search(datasetSearchRequest);
046    }
047
048
049}