1 package org.opendaylight.controller.sal.connector.remoterpc.util;
3 import org.opendaylight.yangtools.yang.data.api.CompositeNode;
4 import org.opendaylight.yangtools.yang.data.api.Node;
5 import org.opendaylight.yangtools.yang.data.api.SimpleNode;
6 import org.opendaylight.yangtools.yang.data.impl.NodeUtils;
7 import org.opendaylight.yangtools.yang.data.impl.XmlTreeBuilder;
8 import org.slf4j.Logger;
9 import org.slf4j.LoggerFactory;
10 import org.w3c.dom.Document;
12 import javax.xml.stream.XMLStreamException;
13 import javax.xml.transform.OutputKeys;
14 import javax.xml.transform.Transformer;
15 import javax.xml.transform.TransformerException;
16 import javax.xml.transform.TransformerFactory;
17 import javax.xml.transform.dom.DOMSource;
18 import javax.xml.transform.stream.StreamResult;
19 import java.io.ByteArrayInputStream;
20 import java.io.StringWriter;
22 public class XmlUtils {
24 private static final Logger _logger = LoggerFactory.getLogger(XmlUtils.class);
26 public static String compositeNodeToXml(CompositeNode cNode){
27 if (cNode == null) return new String();
29 Document domTree = NodeUtils.buildShadowDomTree(cNode);
30 StringWriter writer = new StringWriter();
32 TransformerFactory tf = TransformerFactory.newInstance();
33 Transformer transformer = tf.newTransformer();
34 transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
35 transformer.transform(new DOMSource(domTree), new StreamResult(writer));
36 } catch (TransformerException e) {
37 _logger.error("Error during translation of Document to OutputStream", e);
40 return writer.toString();
43 public static CompositeNode xmlToCompositeNode(String xml){
44 if (xml==null || xml.length()==0) return null;
48 dataTree = XmlTreeBuilder.buildDataTree(new ByteArrayInputStream(xml.getBytes()));
49 } catch (XMLStreamException e) {
50 _logger.error("Error during building data tree from XML", e);
53 if (dataTree == null) {
54 _logger.error("data tree is null");
57 if (dataTree instanceof SimpleNode) {
58 _logger.error("RPC XML was resolved as SimpleNode");
61 return (CompositeNode) dataTree;