| /* |
| * 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 com.opensymphony.xwork2.config.providers; |
| |
| import org.apache.commons.lang3.StringUtils; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.NodeList; |
| |
| import java.util.LinkedHashMap; |
| import java.util.Map; |
| |
| |
| /** |
| * XML utilities. |
| * |
| * @author Mike |
| */ |
| public class XmlHelper { |
| |
| |
| /** |
| * <p> |
| * This method will find all the parameters under this <code>paramsElement</code> and return them as |
| * Map<String, String>. For example, |
| * </p> |
| * |
| * <pre> |
| * <result ... > |
| * <param name="param1">value1</param> |
| * <param name="param2">value2</param> |
| * <param name="param3">value3</param> |
| * </result> |
| * </pre> |
| * |
| * <p> |
| * will returns a Map<String, String> with the following key, value pairs: |
| * </p> |
| * |
| * <ul> |
| * <li>param1 - value1</li> |
| * <li>param2 - value2</li> |
| * <li>param3 - value3</li> |
| * </ul> |
| * |
| * @param paramsElement params element |
| * @return a map of key,value pairs |
| */ |
| public static Map<String, String> getParams(Element paramsElement) { |
| LinkedHashMap<String, String> params = new LinkedHashMap<>(); |
| |
| if (paramsElement == null) { |
| return params; |
| } |
| |
| NodeList childNodes = paramsElement.getChildNodes(); |
| |
| for (int i = 0; i < childNodes.getLength(); i++) { |
| Node childNode = childNodes.item(i); |
| |
| if ((childNode.getNodeType() == Node.ELEMENT_NODE) && "param".equals(childNode.getNodeName())) { |
| Element paramElement = (Element) childNode; |
| String paramName = paramElement.getAttribute("name"); |
| |
| String val = getContent(paramElement); |
| if (val.length() > 0) { |
| params.put(paramName, val); |
| } |
| } |
| } |
| |
| return params; |
| } |
| |
| /** |
| * <p> |
| * This method will return the content of this particular <code>element</code>. |
| * For example, |
| * </p> |
| * |
| * <pre> |
| * <result>something_1</result> |
| * </pre> |
| * |
| * <p> |
| * When the {@link org.w3c.dom.Element} <code><result></code> is passed in as |
| * argument (<code>element</code> to this method, it returns the content of it, |
| * namely, <code>something_1</code> in the example above. |
| * </p> |
| * |
| * @param element the DOM element |
| * @return content as string |
| */ |
| public static String getContent(Element element) { |
| StringBuilder paramValue = new StringBuilder(); |
| NodeList childNodes = element.getChildNodes(); |
| for (int j = 0; j < childNodes.getLength(); j++) { |
| Node currentNode = childNodes.item(j); |
| if (currentNode != null && currentNode.getNodeType() == Node.TEXT_NODE) { |
| String val = currentNode.getNodeValue(); |
| if (val != null) { |
| paramValue.append(val.trim()); |
| } |
| } |
| } |
| return paramValue.toString().trim(); |
| } |
| |
| /** |
| * @param doc document |
| * @return the value of the "order" attribute from the root element |
| */ |
| public static Integer getLoadOrder(Document doc) { |
| Element rootElement = doc.getDocumentElement(); |
| String number = rootElement.getAttribute("order"); |
| if (StringUtils.isNotBlank(number)) { |
| try { |
| return Integer.parseInt(number); |
| } catch (NumberFormatException e) { |
| return Integer.MAX_VALUE; |
| } |
| } else { |
| //no order specified |
| return Integer.MAX_VALUE; |
| } |
| } |
| } |