2 * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
9 package org.opendaylight.controller.sal.connector.remoterpc.util;
11 import org.opendaylight.yangtools.yang.data.api.CompositeNode;
12 import org.opendaylight.yangtools.yang.data.api.Node;
13 import org.opendaylight.yangtools.yang.data.api.SimpleNode;
14 import org.opendaylight.yangtools.yang.data.impl.NodeUtils;
15 import org.opendaylight.yangtools.yang.data.impl.XmlTreeBuilder;
16 import org.slf4j.Logger;
17 import org.slf4j.LoggerFactory;
18 import org.w3c.dom.Document;
20 import javax.xml.stream.XMLStreamException;
21 import javax.xml.transform.OutputKeys;
22 import javax.xml.transform.Transformer;
23 import javax.xml.transform.TransformerException;
24 import javax.xml.transform.TransformerFactory;
25 import javax.xml.transform.dom.DOMSource;
26 import javax.xml.transform.stream.StreamResult;
27 import java.io.ByteArrayInputStream;
28 import java.io.StringWriter;
30 public class XmlUtils {
32 private static final Logger _logger = LoggerFactory.getLogger(XmlUtils.class);
34 public static String compositeNodeToXml(CompositeNode cNode){
35 if (cNode == null) return new String();
37 Document domTree = NodeUtils.buildShadowDomTree(cNode);
38 StringWriter writer = new StringWriter();
40 TransformerFactory tf = TransformerFactory.newInstance();
41 Transformer transformer = tf.newTransformer();
42 transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
43 transformer.transform(new DOMSource(domTree), new StreamResult(writer));
44 } catch (TransformerException e) {
45 _logger.error("Error during translation of Document to OutputStream", e);
48 return writer.toString();
51 public static CompositeNode xmlToCompositeNode(String xml){
52 if (xml==null || xml.length()==0) return null;
56 dataTree = XmlTreeBuilder.buildDataTree(new ByteArrayInputStream(xml.getBytes()));
57 } catch (XMLStreamException e) {
58 _logger.error("Error during building data tree from XML", e);
61 if (dataTree == null) {
62 _logger.error("data tree is null");
65 if (dataTree instanceof SimpleNode) {
66 _logger.error("RPC XML was resolved as SimpleNode");
69 return (CompositeNode) dataTree;