| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.sling.graphql.samples.website.datafetchers; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.stream.StreamSupport; |
| |
| import org.apache.sling.api.resource.Resource; |
| import org.apache.sling.graphql.samples.website.models.SlingWrappers; |
| |
| import graphql.schema.DataFetcher; |
| import graphql.schema.DataFetchingEnvironment; |
| |
| /** Find articles that belong to a given section (business, news etc) */ |
| class ArticlesBySectionFetcher implements DataFetcher<Object> { |
| |
| public static final String NAME = "articlesBySection"; |
| |
| private final Resource section; |
| |
| ArticlesBySectionFetcher(Resource section) { |
| this.section = section; |
| } |
| |
| @Override |
| public Object get(DataFetchingEnvironment env) throws Exception { |
| // TODO should paginate instead |
| final int maxArticles = 42; |
| |
| final List<Map<String, Object>> result = new ArrayList<>(); |
| final Iterable<Resource> it = () -> section.getResourceResolver().getChildren(section).iterator(); |
| StreamSupport.stream(it.spliterator(), false) |
| .limit(maxArticles) |
| .forEach(child -> result.add(SlingWrappers.resourceWrapper(child))); |
| return result; |
| } |
| } |