| /* |
| * Copyright 2016-present Open Networking Foundation |
| * |
| * Licensed 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.onosproject.yms.app.ych.defaultcodecs.xml; |
| |
| import org.dom4j.Element; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.Iterator; |
| |
| import static org.onosproject.yms.app.ych.defaultcodecs.xml.XmlNodeType.OBJECT_NODE; |
| import static org.onosproject.yms.app.ych.defaultcodecs.xml.XmlNodeType.TEXT_NODE; |
| |
| /** |
| * Represents implementation of codec xml walker. |
| */ |
| class DefaultXmlCodecWalker implements XmlWalker { |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| @Override |
| public void walk(XmlListener listener, Element element, |
| Element rootElement) { |
| try { |
| Element newElement = element.createCopy(); |
| newElement.remove(element.getNamespace()); |
| |
| listener.enterXmlElement(element, getElementType(newElement), |
| rootElement); |
| |
| if (element.hasContent() && !element.isTextOnly()) { |
| for (Iterator i = element.elementIterator(); i.hasNext();) { |
| Element childElement = (Element) i.next(); |
| walk(listener, childElement, rootElement); |
| } |
| } |
| |
| listener.exitXmlElement(element, getElementType(element), |
| rootElement); |
| } catch (Exception e) { |
| log.error("Exception occurred when walk xml element: {}", element); |
| } |
| } |
| |
| /** |
| * Determine the type of an element. |
| * |
| * @param element to be analysed |
| * @return type of the element |
| */ |
| private XmlNodeType getElementType(Element element) { |
| return element.hasContent() && element.isTextOnly() ? |
| TEXT_NODE : OBJECT_NODE; |
| } |
| } |