| /* |
| * 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.any23.validator; |
| |
| import org.apache.any23.extractor.html.DomUtils; |
| import org.w3c.dom.Attr; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.NamedNodeMap; |
| import org.w3c.dom.Node; |
| |
| import java.net.URI; |
| import java.util.List; |
| import java.util.Locale; |
| |
| /** |
| * This class wraps the <i>DOM</i> document. |
| * |
| * @author Michele Mostarda (mostarda@fbk.eu) |
| * @author Davide Palmisano (palmisano@fbk.eu) |
| */ |
| public class DefaultDOMDocument implements DOMDocument { |
| |
| private URI documentIRI; |
| |
| private Document document; |
| |
| public DefaultDOMDocument(URI documentIRI, Document document) { |
| if(documentIRI == null) { |
| throw new NullPointerException("documentIRI cannot be null."); |
| } |
| if(document == null) { |
| throw new NullPointerException("document cannot be null."); |
| } |
| this.documentIRI = documentIRI; |
| this.document = document; |
| } |
| |
| public URI getDocumentIRI() { |
| return documentIRI; |
| } |
| |
| public Document getOriginalDocument() { |
| return document; |
| } |
| |
| public List<Node> getNodes(String xPath) { |
| return DomUtils.findAll(document, xPath); |
| } |
| |
| public Node getNode(String xPath) { |
| List<Node> nodes = DomUtils.findAll(document, xPath); |
| if(nodes.size() == 0) { |
| throw new IllegalArgumentException( |
| String.format(Locale.ROOT, "Cannot find node at XPath '%s'", xPath) |
| ); |
| } |
| if(nodes.size() > 1) { |
| throw new IllegalArgumentException( |
| String.format(Locale.ROOT, "The given XPath '%s' corresponds to more than one node.", xPath) |
| ); |
| } |
| return nodes.get(0); |
| } |
| |
| public void addAttribute(String xPath, String attrName, String attrValue) { |
| Node node = getNode(xPath); |
| NamedNodeMap namedNodeMap = node.getAttributes(); |
| Attr attr = document.createAttribute(attrName); |
| attr.setNodeValue(attrValue); |
| namedNodeMap.setNamedItem(attr); |
| } |
| |
| public List<Node> getNodesWithAttribute(String attrName) { |
| return DomUtils.findAllByAttributeName(document, attrName); |
| } |
| |
| } |