| /** |
| * 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.xml.security.utils; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.NodeList; |
| |
| /** |
| */ |
| public class HelperNodeList implements NodeList { |
| |
| /** Field nodes */ |
| List<Node> nodes = new ArrayList<>(); |
| boolean allNodesMustHaveSameParent = false; |
| |
| /** |
| * |
| */ |
| public HelperNodeList() { |
| this(false); |
| } |
| |
| |
| /** |
| * @param allNodesMustHaveSameParent |
| */ |
| public HelperNodeList(boolean allNodesMustHaveSameParent) { |
| this.allNodesMustHaveSameParent = allNodesMustHaveSameParent; |
| } |
| |
| /** |
| * Method item |
| * |
| * @param index |
| * @return node with index i |
| */ |
| public Node item(int index) { |
| return nodes.get(index); |
| } |
| |
| /** |
| * Method getLength |
| * |
| * @return length of the list |
| */ |
| public int getLength() { |
| return nodes.size(); |
| } |
| |
| /** |
| * Method appendChild |
| * |
| * @param node |
| * @throws IllegalArgumentException |
| */ |
| public void appendChild(Node node) throws IllegalArgumentException { |
| if (this.allNodesMustHaveSameParent && this.getLength() > 0 |
| && this.item(0).getParentNode() != node.getParentNode()) { |
| throw new IllegalArgumentException("Nodes have not the same Parent"); |
| } |
| nodes.add(node); |
| } |
| |
| /** |
| * @return the document that contains this nodelist |
| */ |
| public Document getOwnerDocument() { |
| if (this.getLength() == 0) { |
| return null; |
| } |
| return XMLUtils.getOwnerDocument(this.item(0)); |
| } |
| } |