import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
-
import javax.ws.rs.Produces;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.ext.Provider;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
-
import org.opendaylight.controller.sal.rest.api.Draft02;
import org.opendaylight.controller.sal.rest.api.RestconfService;
-import org.opendaylight.controller.sal.restconf.impl.ResponseException;
+import org.opendaylight.controller.sal.restconf.impl.RestconfDocumentedException;
+import org.opendaylight.controller.sal.restconf.impl.RestconfError.ErrorTag;
+import org.opendaylight.controller.sal.restconf.impl.RestconfError.ErrorType;
import org.opendaylight.controller.sal.restconf.impl.StructuredData;
import org.opendaylight.yangtools.yang.data.api.CompositeNode;
import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
import org.w3c.dom.Document;
@Provider
-@Produces({ Draft02.MediaTypes.DATA + RestconfService.XML, MediaType.APPLICATION_XML, MediaType.TEXT_XML })
+@Produces({ Draft02.MediaTypes.API + RestconfService.XML, Draft02.MediaTypes.DATA + RestconfService.XML,
+ Draft02.MediaTypes.OPERATION + RestconfService.XML, MediaType.APPLICATION_XML, MediaType.TEXT_XML })
public enum StructuredDataToXmlProvider implements MessageBodyWriter<StructuredData> {
INSTANCE;
- private final static Logger logger = LoggerFactory.getLogger(StructuredDataToXmlProvider.class);
+ private static final Logger LOG = LoggerFactory.getLogger(StructuredDataToXmlProvider.class);
+ private static final TransformerFactory FACTORY = TransformerFactory.newInstance();
+ private static final ThreadLocal<Transformer> TRANSFORMER = new ThreadLocal<Transformer>() {
+ @Override
+ protected Transformer initialValue() {
+ final Transformer ret;
+ try {
+ ret = FACTORY.newTransformer();
+ } catch (TransformerConfigurationException e) {
+ LOG.error("Failed to instantiate XML transformer", e);
+ throw new IllegalStateException("XML encoding currently unavailable", e);
+ }
+
+ ret.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "no");
+ ret.setOutputProperty(OutputKeys.METHOD, "xml");
+ ret.setOutputProperty(OutputKeys.INDENT, "yes");
+ ret.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
+ ret.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
+
+ return ret;
+ }
+ };
@Override
- public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
- return true;
+ public boolean isWriteable(final Class<?> type, final Type genericType, final Annotation[] annotations, final MediaType mediaType) {
+ return type.equals(StructuredData.class);
}
@Override
- public long getSize(StructuredData t, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
+ public long getSize(final StructuredData t, final Class<?> type, final Type genericType, final Annotation[] annotations, final MediaType mediaType) {
return -1;
}
@Override
- public void writeTo(StructuredData t, Class<?> type, Type genericType, Annotation[] annotations,
- MediaType mediaType, MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream)
- throws IOException, WebApplicationException {
+ public void writeTo(final StructuredData t, final Class<?> type, final Type genericType, final Annotation[] annotations,
+ final MediaType mediaType, final MultivaluedMap<String, Object> httpHeaders, final OutputStream entityStream)
+ throws IOException, WebApplicationException {
CompositeNode data = t.getData();
if (data == null) {
- throw new ResponseException(Response.Status.NOT_FOUND, "No data exists.");
+ throw new RestconfDocumentedException(Response.Status.NOT_FOUND);
}
-
- XmlMapper xmlMapper = new XmlMapper();
- Document domTree = xmlMapper.write(data, (DataNodeContainer) t.getSchema());
+
+ final Transformer trans;
+ try {
+ trans = TRANSFORMER.get();
+ if (t.isPrettyPrintMode()) {
+ trans.setOutputProperty(OutputKeys.INDENT, "yes");
+ } else {
+ trans.setOutputProperty(OutputKeys.INDENT, "no");
+ }
+ } catch (RuntimeException e) {
+ throw new RestconfDocumentedException(e.getMessage(), ErrorType.TRANSPORT,
+ ErrorTag.OPERATION_FAILED);
+ }
+
+ // FIXME: BUG-1281: eliminate the intermediate Document
+ final Document domTree = new XmlMapper().write(data, (DataNodeContainer) t.getSchema());
try {
- TransformerFactory tf = TransformerFactory.newInstance();
- Transformer transformer = tf.newTransformer();
- transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "no");
- transformer.setOutputProperty(OutputKeys.METHOD, "xml");
- transformer.setOutputProperty(OutputKeys.INDENT, "yes");
- transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
- transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
- transformer.transform(new DOMSource(domTree), new StreamResult(entityStream));
+ trans.transform(new DOMSource(domTree), new StreamResult(entityStream));
} catch (TransformerException e) {
- logger.error("Error during translation of Document to OutputStream", e);
- throw new ResponseException(Response.Status.INTERNAL_SERVER_ERROR, e.getMessage());
+ LOG.error("Error during translation of Document to OutputStream", e);
+ throw new RestconfDocumentedException(e.getMessage(), ErrorType.TRANSPORT,
+ ErrorTag.OPERATION_FAILED);
}
}