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.collections.descriptors.Descriptor;
019import org.gbif.api.model.collections.request.DescriptorSearchRequest;
020import org.gbif.api.model.common.paging.PagingRequest;
021import org.gbif.api.model.common.paging.PagingResponse;
022import org.gbif.api.service.collections.DescriptorsService;
023
024/** Iterates over results of {@link DescriptorsService#listDescriptors(DescriptorSearchRequest)}. */
025public class CollectionDescriptorPager extends BasePager<Descriptor> {
026
027  private final DescriptorsService service;
028  private final DescriptorSearchRequest searchRequest;
029
030  public CollectionDescriptorPager(
031      DescriptorsService service, DescriptorSearchRequest searchRequest, int pageSize) {
032    super(pageSize);
033    this.searchRequest = searchRequest;
034    this.service = service;
035  }
036
037  @Override
038  public PagingResponse<Descriptor> nextPage(PagingRequest page) {
039    searchRequest.setOffset(page.getOffset());
040    searchRequest.setLimit(page.getLimit());
041    return service.listDescriptors(searchRequest);
042  }
043}