File Xpp3Utils.java
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Classes
| Class | Line # | Actions | |||||
|---|---|---|---|---|---|---|---|
| Xpp3Utils | 39 | 21 | 0% | 10 | 4 |
Contributing tests
This file is covered by 23 tests.
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| 1 | /* | |
| 2 | * Licensed to the Apache Software Foundation (ASF) under one | |
| 3 | * or more contributor license agreements. See the NOTICE file | |
| 4 | * distributed with this work for additional information | |
| 5 | * regarding copyright ownership. The ASF licenses this file | |
| 6 | * to you under the Apache License, Version 2.0 (the | |
| 7 | * "License"); you may not use this file except in compliance | |
| 8 | * with the License. You may obtain a copy of the License at | |
| 9 | * | |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 11 | * | |
| 12 | * Unless required by applicable law or agreed to in writing, | |
| 13 | * software distributed under the License is distributed on an | |
| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
| 15 | * KIND, either express or implied. See the License for the | |
| 16 | * specific language governing permissions and limitations | |
| 17 | * under the License. | |
| 18 | */ | |
| 19 | package org.devacfr.maven.skins.reflow; | |
| 20 | ||
| 21 | import javax.annotation.Nonnull; | |
| 22 | import javax.annotation.Nullable; | |
| 23 | ||
| 24 | import java.util.Collections; | |
| 25 | import java.util.List; | |
| 26 | import java.util.stream.Collectors; | |
| 27 | ||
| 28 | import com.google.common.collect.Lists; | |
| 29 | import org.codehaus.plexus.util.xml.Xpp3Dom; | |
| 30 | ||
| 31 | import static java.util.Objects.requireNonNull; | |
| 32 | ||
| 33 | /** | |
| 34 | * Utility class to manipulate {@link Xpp3Dom} model. | |
| 35 | * | |
| 36 | * @author Christophe Friederich | |
| 37 | * @since 2.0 | |
| 38 | */ | |
| 39 | public final class Xpp3Utils { | |
| 40 | ||
| 41 | 0 |  private Xpp3Utils() { |
| 42 | 0 | throw new UnsupportedOperationException(); |
| 43 | } | |
| 44 | ||
| 45 | /** | |
| 46 | * Retrieves the child node. Tests both default name and with namespace. | |
| 47 | * | |
| 48 | * @param parentNode | |
| 49 | * the parent node | |
| 50 | * @param name | |
| 51 | * the child name of node to get | |
| 52 | * @param namespace | |
| 53 | * the namespace (can be empty or {@code null}). | |
| 54 | * @return Returns Returns {@link Xpp3Dom} representing the child of {@code parentNode} if exists, otherwise returns | |
| 55 | * {@code null}. | |
| 56 | */ | |
| 57 | 602 | @Nullable public static Xpp3Dom getFirstChild(@Nullable final Xpp3Dom parentNode, |
| 58 | @Nonnull final String name, | |
| 59 | @Nonnull final String namespace) { | |
| 60 | 602 | if (parentNode == null) { |
| 61 | 33 | return null; |
| 62 | } | |
| 63 | 569 | requireNonNull(namespace); |
| 64 | 569 | final Xpp3Dom child = parentNode.getChild(requireNonNull(name)); |
| 65 | 569 | if (child != null) { |
| 66 | 255 | return child; |
| 67 | } | |
| 68 | ||
| 69 | 314 | return parentNode.getChild(namespace + name); |
| 70 | } | |
| 71 | ||
| 72 | /** | |
| 73 | * Gets the list of all children name for the {@code parentNode}. | |
| 74 | * | |
| 75 | * @param parentNode | |
| 76 | * the parent node to use (can be {@code null}. | |
| 77 | * @return Returns a list of {@link String} representing the name of all children, which may be empty but never | |
| 78 | * {@code null}. | |
| 79 | * @since 1.3 | |
| 80 | */ | |
| 81 | 2 | @SuppressWarnings("null") |
| 82 | @Nonnull | |
| 83 | public static List<String> getChildren(@Nullable final Xpp3Dom parentNode) { | |
| 84 | 2 | return getChildrenNodes(parentNode, null).stream().map(Xpp3Dom::getName).collect(Collectors.toList()); |
| 85 | } | |
| 86 | ||
| 87 | /** | |
| 88 | * Gets children list filtered by name of {@code parentNode}. | |
| 89 | * | |
| 90 | * @param parentNode | |
| 91 | * the parent node to use. | |
| 92 | * @param name | |
| 93 | * the name of element to filter | |
| 94 | * @return Returns a list of {@link Xpp3Dom} representing all children element filtered by {@code name} of | |
| 95 | * {@code parentNode}. | |
| 96 | */ | |
| 97 | 33 | @SuppressWarnings("null") |
| 98 | @Nonnull | |
| 99 | public static List<Xpp3Dom> getChildrenNodes(@Nullable final Xpp3Dom parentNode, final String name) { | |
| 100 | 33 | if (parentNode == null) { |
| 101 | 2 | return Collections.emptyList(); |
| 102 | } | |
| 103 | 31 | final Xpp3Dom[] children = parentNode.getChildren(); |
| 104 | 31 | if (children == null) { |
| 105 | 0 | return Collections.emptyList(); |
| 106 | } | |
| 107 | 31 | final List<Xpp3Dom> list = Lists.newArrayListWithCapacity(children.length); |
| 108 | 31 | for (final Xpp3Dom child : children) { |
| 109 | 51 | if (name != null) { |
| 110 | 41 | if (name.equals(child.getName())) { |
| 111 | 31 | list.add(child); |
| 112 | } | |
| 113 | } else { | |
| 114 | 10 | list.add(child); |
| 115 | } | |
| 116 | } | |
| 117 | ||
| 118 | 31 | return list; |
| 119 | } | |
| 120 | } |