package org.opendaylight.controller.netconf.util.messages;
-import com.google.common.base.Charsets;
-import com.google.common.base.Optional;
-import com.google.common.collect.Lists;
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.util.Arrays;
+import java.util.List;
+
import org.opendaylight.controller.netconf.api.NetconfDeserializerException;
import org.opendaylight.controller.netconf.api.NetconfMessage;
import org.opendaylight.controller.netconf.util.xml.XmlUtil;
import org.w3c.dom.Document;
import org.xml.sax.SAXException;
-import java.io.ByteArrayInputStream;
-import java.io.IOException;
-import java.nio.ByteBuffer;
-import java.util.Arrays;
-import java.util.List;
+import com.google.common.base.Charsets;
+import com.google.common.base.Optional;
+import com.google.common.collect.Lists;
/**
* NetconfMessageFactory for (de)serializing DOM documents.
private static final Logger logger = LoggerFactory.getLogger(NetconfMessageFactory.class);
- public static final byte[] endOfMessage = "]]>]]>".getBytes(Charsets.UTF_8);
-
- public static final byte[] endOfChunk = "\n##\n".getBytes(Charsets.UTF_8);
-
- public static final int MAX_CHUNK_SIZE = 1024; // Bytes
-
private final Optional<String> clientId;
public NetconfMessageFactory() {
}
@Override
- public List<NetconfMessage> parse(byte[] bytes) throws DeserializerException, DocumentedException {
- String s = Charsets.UTF_8.decode(ByteBuffer.wrap(bytes)).toString();
- logger.debug("Parsing message \n{}", s);
- if (bytes[0] == '[') {
- // yuma sends auth information in the first line. Ignore until ]\n
- // is found.
- int endOfAuthHeader = ByteArray.findByteSequence(bytes, new byte[] { ']', '\n' });
+ public NetconfMessage parse(byte[] bytes) throws DeserializerException, DocumentedException {
+ logMessage(bytes);
+
+ String additionalHeader = null;
+
+ if (startsWithAdditionalHeader(bytes)) {
+ // Auth information containing username, ip address... extracted for monitoring
+ int endOfAuthHeader = getAdditionalHeaderEndIndex(bytes);
if (endOfAuthHeader > -1) {
+ byte[] additionalHeaderBytes = Arrays.copyOfRange(bytes, 0, endOfAuthHeader + 2);
+ additionalHeader = additionalHeaderToString(additionalHeaderBytes);
bytes = Arrays.copyOfRange(bytes, endOfAuthHeader + 2, bytes.length);
}
}
- List<NetconfMessage> messages = Lists.newArrayList();
+ NetconfMessage message;
try {
Document doc = XmlUtil.readXmlToDocument(new ByteArrayInputStream(bytes));
- messages.add(new NetconfMessage(doc));
+ message = new NetconfMessage(doc, additionalHeader);
} catch (final SAXException | IOException | IllegalStateException e) {
throw new NetconfDeserializerException("Could not parse message from " + new String(bytes), e);
}
- return messages;
+ return message;
+ }
+
+ private int getAdditionalHeaderEndIndex(byte[] bytes) {
+ for (String possibleEnd : Lists.newArrayList("]\n", "]\r\n")) {
+ int idx = ByteArray.findByteSequence(bytes, possibleEnd.getBytes(Charsets.UTF_8));
+
+ if (idx != -1) {
+ return idx;
+ }
+ }
+
+ return -1;
+ }
+
+ private boolean startsWithAdditionalHeader(byte[] bytes) {
+ List<String> possibleStarts = Lists.newArrayList("[", "\r\n[", "\n[");
+ for (String possibleStart : possibleStarts) {
+ int i = 0;
+ for (byte b : possibleStart.getBytes(Charsets.UTF_8)) {
+ if(bytes[i]!=b)
+ break;
+
+ return true;
+ }
+ }
+
+ return false;
+ };
+
+ private void logMessage(byte[] bytes) {
+ String s = Charsets.UTF_8.decode(ByteBuffer.wrap(bytes)).toString();
+ logger.debug("Parsing message \n{}", s);
+ }
+
+ private String additionalHeaderToString(byte[] bytes) {
+ return Charsets.UTF_8.decode(ByteBuffer.wrap(bytes)).toString();
}
@Override
Comment comment = netconfMessage.getDocument().createComment("clientId:" + clientId.get());
netconfMessage.getDocument().appendChild(comment);
}
- final ByteBuffer msgBytes = Charsets.UTF_8.encode(xmlToString(netconfMessage.getDocument()));
+ ByteBuffer msgBytes;
+ if(netconfMessage.getAdditionalHeader().isPresent()) {
+ String header = netconfMessage.getAdditionalHeader().get();
+ logger.trace("Header of netconf message parsed \n{}", header);
+ msgBytes = Charsets.UTF_8.encode(header + xmlToString(netconfMessage.getDocument()));
+ } else {
+ msgBytes = Charsets.UTF_8.encode(xmlToString(netconfMessage.getDocument()));
+ }
String content = xmlToString(netconfMessage.getDocument());
logger.trace("Putting message \n{}", content);
- byte[] b = new byte[msgBytes.remaining()];
+ byte[] b = new byte[msgBytes.limit()];
msgBytes.get(b);
return b;
}