| /* |
| * 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.cms; |
| |
| import java.util.function.Predicate; |
| import java.util.stream.Stream; |
| import java.util.stream.StreamSupport; |
| |
| import org.apache.sling.api.resource.Resource; |
| |
| public class ResourceTree { |
| |
| private Resource root; |
| |
| public static Stream<ResourceTree> stream(Resource resource) { |
| return new ResourceTree(resource).streamTree(); |
| } |
| |
| public static Stream<ResourceTree> stream(Resource resource, String filterType) { |
| return new ResourceTree(resource).streamTree(filterType); |
| } |
| |
| public static Stream<ResourceTree> stream(Resource resource, Predicate<Resource> filterTraversal, |
| Predicate<ResourceTree> filterInclude) { |
| return new ResourceTree(resource).streamTree(filterTraversal, filterInclude); |
| } |
| |
| private ResourceTree(Resource root) { |
| this.root = root; |
| } |
| |
| public Resource getResource() { |
| return root; |
| } |
| |
| private Stream<ResourceTree> streamTree() { |
| return streamTree(r -> true, rt -> true); |
| } |
| |
| private Stream<ResourceTree> streamTree(String filterType) { |
| return streamTree((r -> filterType.equals(r.getResourceType())), rt -> true); |
| } |
| |
| private Stream<ResourceTree> streamTree(Predicate<Resource> filterTraversal, |
| Predicate<ResourceTree> filterInclude) { |
| return Stream |
| .concat(Stream.of(this), |
| StreamSupport.stream(root.getChildren().spliterator(), false).filter(filterTraversal) |
| .map(ResourceTree::new).flatMap(rt -> rt.streamTree(filterTraversal, filterInclude))) |
| .filter(filterInclude); |
| } |
| } |