1 package org.opendaylight.controller.sal.rest.impl;
3 import java.io.IOException;
4 import java.io.OutputStream;
5 import java.lang.annotation.Annotation;
6 import java.lang.reflect.Type;
8 import javax.ws.rs.Produces;
9 import javax.ws.rs.WebApplicationException;
10 import javax.ws.rs.core.MediaType;
11 import javax.ws.rs.core.MultivaluedMap;
12 import javax.ws.rs.core.Response;
13 import javax.ws.rs.ext.MessageBodyWriter;
14 import javax.ws.rs.ext.Provider;
15 import javax.xml.transform.OutputKeys;
16 import javax.xml.transform.Transformer;
17 import javax.xml.transform.TransformerException;
18 import javax.xml.transform.TransformerFactory;
19 import javax.xml.transform.dom.DOMSource;
20 import javax.xml.transform.stream.StreamResult;
22 import org.opendaylight.controller.sal.rest.api.Draft01;
23 import org.opendaylight.controller.sal.rest.api.Draft02;
24 import org.opendaylight.controller.sal.rest.api.RestconfService;
25 import org.opendaylight.controller.sal.restconf.impl.ResponseException;
26 import org.opendaylight.controller.sal.restconf.impl.StructuredData;
27 import org.opendaylight.yangtools.yang.data.api.CompositeNode;
28 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
29 import org.slf4j.Logger;
30 import org.slf4j.LoggerFactory;
31 import org.w3c.dom.Document;
34 @Produces({ Draft01.MediaTypes.DATA + RestconfService.XML, Draft02.MediaTypes.DATA + RestconfService.XML,
35 MediaType.APPLICATION_XML, MediaType.TEXT_XML })
36 public enum StructuredDataToXmlProvider implements MessageBodyWriter<StructuredData> {
39 private final static Logger logger = LoggerFactory.getLogger(StructuredDataToXmlProvider.class);
42 public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
47 public long getSize(StructuredData t, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
52 public void writeTo(StructuredData t, Class<?> type, Type genericType, Annotation[] annotations,
53 MediaType mediaType, MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream)
54 throws IOException, WebApplicationException {
55 CompositeNode data = t.getData();
57 throw new ResponseException(Response.Status.NOT_FOUND, "No data exists.");
60 XmlMapper xmlMapper = new XmlMapper();
61 Document domTree = xmlMapper.write(data, (DataNodeContainer) t.getSchema());
63 TransformerFactory tf = TransformerFactory.newInstance();
64 Transformer transformer = tf.newTransformer();
65 transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "no");
66 transformer.setOutputProperty(OutputKeys.METHOD, "xml");
67 transformer.setOutputProperty(OutputKeys.INDENT, "yes");
68 transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
69 transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
70 transformer.transform(new DOMSource(domTree), new StreamResult(entityStream));
71 } catch (TransformerException e) {
72 logger.error("Error during translation of Document to OutputStream", e);
73 throw new ResponseException(Response.Status.INTERNAL_SERVER_ERROR, e.getMessage());