package org.opendaylight.controller.netconf.util.handler;
import io.netty.buffer.ByteBuf;
+import io.netty.buffer.ByteBufOutputStream;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.MessageToByteEncoder;
-import java.nio.ByteBuffer;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+
+import javax.xml.transform.OutputKeys;
+import javax.xml.transform.Transformer;
+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.netconf.api.NetconfMessage;
-import org.opendaylight.controller.netconf.util.xml.XmlUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.w3c.dom.Comment;
-import org.w3c.dom.Document;
import com.google.common.annotations.VisibleForTesting;
-import com.google.common.base.Charsets;
import com.google.common.base.Optional;
public class NetconfMessageToXMLEncoder extends MessageToByteEncoder<NetconfMessage> {
private static final Logger LOG = LoggerFactory.getLogger(NetconfMessageToXMLEncoder.class);
+ private static final TransformerFactory FACTORY = TransformerFactory.newInstance();
private final Optional<String> clientId;
@Override
@VisibleForTesting
- public void encode(ChannelHandlerContext ctx, NetconfMessage msg, ByteBuf out) throws Exception {
+ public void encode(ChannelHandlerContext ctx, NetconfMessage msg, ByteBuf out) throws IOException, TransformerException {
LOG.debug("Sent to encode : {}", msg);
if (clientId.isPresent()) {
msg.getDocument().appendChild(comment);
}
- final ByteBuffer msgBytes = encodeMessage(msg);
-
- LOG.trace("Putting message \n{}", xmlToString(msg.getDocument()));
- out.writeBytes(msgBytes);
- }
-
- protected ByteBuffer encodeMessage(NetconfMessage msg) {
- return Charsets.UTF_8.encode(xmlToString(msg.getDocument()));
- }
+ try (OutputStream os = new ByteBufOutputStream(out)) {
+ Transformer transformer = FACTORY.newTransformer();
+ transformer.setOutputProperty(OutputKeys.INDENT, "yes");
+ transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
- protected String xmlToString(Document doc) {
- return XmlUtil.toString(doc, false);
+ StreamResult result = new StreamResult(new OutputStreamWriter(os));
+ DOMSource source = new DOMSource(msg.getDocument());
+ transformer.transform(source, result);
+ }
}
}