X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?p=controller.git;a=blobdiff_plain;f=opendaylight%2Fnetconf%2Fnetconf-netty-util%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fnetconf%2Fnettyutil%2Fhandler%2FNetconfXMLToHelloMessageDecoder.java;h=69af52d61e0e8eb3b8617b07b8006a6cf0fd9ff3;hp=efe4861577b0ce3173a182d8005f37e186242ae8;hb=b2e81149739c87f0ecc2ce7f06448d7a5d3162b8;hpb=478ce1fa1dc30974b7cf23fd5258f1af5366d547

diff --git a/opendaylight/netconf/netconf-netty-util/src/main/java/org/opendaylight/controller/netconf/nettyutil/handler/NetconfXMLToHelloMessageDecoder.java b/opendaylight/netconf/netconf-netty-util/src/main/java/org/opendaylight/controller/netconf/nettyutil/handler/NetconfXMLToHelloMessageDecoder.java
index efe4861577..69af52d61e 100644
--- a/opendaylight/netconf/netconf-netty-util/src/main/java/org/opendaylight/controller/netconf/nettyutil/handler/NetconfXMLToHelloMessageDecoder.java
+++ b/opendaylight/netconf/netconf-netty-util/src/main/java/org/opendaylight/controller/netconf/nettyutil/handler/NetconfXMLToHelloMessageDecoder.java
@@ -7,31 +7,28 @@
  */
 package org.opendaylight.controller.netconf.nettyutil.handler;
 
+import com.google.common.annotations.VisibleForTesting;
+import com.google.common.base.Charsets;
 import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableList;
 import com.google.common.collect.Lists;
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufUtil;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.handler.codec.ByteToMessageDecoder;
-
 import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.nio.ByteBuffer;
 import java.util.Arrays;
 import java.util.List;
-
+import org.opendaylight.controller.config.util.xml.XmlUtil;
 import org.opendaylight.controller.netconf.api.NetconfDocumentedException;
 import org.opendaylight.controller.netconf.api.NetconfMessage;
 import org.opendaylight.controller.netconf.util.messages.NetconfHelloMessage;
 import org.opendaylight.controller.netconf.util.messages.NetconfHelloMessageAdditionalHeader;
-import org.opendaylight.controller.netconf.util.xml.XmlUtil;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.w3c.dom.Document;
-
-import com.google.common.annotations.VisibleForTesting;
-import com.google.common.base.Charsets;
-import com.google.common.collect.ImmutableList;
 import org.xml.sax.SAXException;
 
 /**
@@ -59,12 +56,12 @@ public final class NetconfXMLToHelloMessageDecoder extends ByteToMessageDecoder
     // State variables do not have to by synchronized
     // Netty uses always the same (1) thread per pipeline
     // We use instance of this per pipeline
-    private List<NetconfMessage> nonHelloMessages = Lists.newArrayList();
+    private final List<NetconfMessage> nonHelloMessages = Lists.newArrayList();
     private boolean helloReceived = false;
 
     @Override
     @VisibleForTesting
-    public void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws IOException, SAXException, NetconfDocumentedException {
+    public void decode(final ChannelHandlerContext ctx, final ByteBuf in, final List<Object> out) throws IOException, SAXException, NetconfDocumentedException {
         if (in.readableBytes() == 0) {
             LOG.debug("No more content in incoming buffer.");
             return;
@@ -72,7 +69,10 @@ public final class NetconfXMLToHelloMessageDecoder extends ByteToMessageDecoder
 
         in.markReaderIndex();
         try {
-            LOG.trace("Received to decode: {}", ByteBufUtil.hexDump(in));
+            if (LOG.isTraceEnabled()) {
+                LOG.trace("Received to decode: {}", ByteBufUtil.hexDump(in));
+            }
+
             byte[] bytes = new byte[in.readableBytes()];
             in.readBytes(bytes);
 
@@ -84,9 +84,9 @@ public final class NetconfXMLToHelloMessageDecoder extends ByteToMessageDecoder
                 // Auth information containing username, ip address... extracted for monitoring
                 int endOfAuthHeader = getAdditionalHeaderEndIndex(bytes);
                 if (endOfAuthHeader > -1) {
-                    byte[] additionalHeaderBytes = Arrays.copyOfRange(bytes, 0, endOfAuthHeader + 2);
+                    byte[] additionalHeaderBytes = Arrays.copyOfRange(bytes, 0, endOfAuthHeader);
                     additionalHeader = additionalHeaderToString(additionalHeaderBytes);
-                    bytes = Arrays.copyOfRange(bytes, endOfAuthHeader + 2, bytes.length);
+                    bytes = Arrays.copyOfRange(bytes, endOfAuthHeader, bytes.length);
                 }
             }
 
@@ -95,16 +95,13 @@ public final class NetconfXMLToHelloMessageDecoder extends ByteToMessageDecoder
             final NetconfMessage message = getNetconfMessage(additionalHeader, doc);
             if (message instanceof NetconfHelloMessage) {
                 Preconditions.checkState(helloReceived == false,
-                        "Multiple hello messages received, unexpected hello: %s",
-                        XmlUtil.toString(message.getDocument()));
+                        "Multiple hello messages received, unexpected hello: %s", message);
                 out.add(message);
                 helloReceived = true;
             // Non hello message, suspend the message and insert into cache
             } else {
-                Preconditions.checkState(helloReceived, "Hello message not received, instead received: %s",
-                        XmlUtil.toString(message.getDocument()));
-                LOG.debug("Netconf message received during negotiation, caching {}",
-                        XmlUtil.toString(message.getDocument()));
+                Preconditions.checkState(helloReceived, "Hello message not received, instead received: %s", message);
+                LOG.debug("Netconf message received during negotiation, caching {}", message);
                 nonHelloMessages.add(message);
             }
         } finally {
@@ -112,7 +109,7 @@ public final class NetconfXMLToHelloMessageDecoder extends ByteToMessageDecoder
         }
     }
 
-    private NetconfMessage getNetconfMessage(final String additionalHeader, final Document doc) throws NetconfDocumentedException {
+    private static NetconfMessage getNetconfMessage(final String additionalHeader, final Document doc) throws NetconfDocumentedException {
         NetconfMessage msg = new NetconfMessage(doc);
         if(NetconfHelloMessage.isHelloMessage(msg)) {
             if (additionalHeader != null) {
@@ -125,12 +122,12 @@ public final class NetconfXMLToHelloMessageDecoder extends ByteToMessageDecoder
         return msg;
     }
 
-    private int getAdditionalHeaderEndIndex(byte[] bytes) {
+    private static int getAdditionalHeaderEndIndex(final byte[] bytes) {
         for (byte[] possibleEnd : POSSIBLE_ENDS) {
             int idx = findByteSequence(bytes, possibleEnd);
 
             if (idx != -1) {
-                return idx;
+                return idx + possibleEnd.length;
             }
         }
 
@@ -162,13 +159,14 @@ public final class NetconfXMLToHelloMessageDecoder extends ByteToMessageDecoder
         return -1;
     }
 
-
-    private void logMessage(byte[] bytes) {
-        String s = Charsets.UTF_8.decode(ByteBuffer.wrap(bytes)).toString();
-        LOG.debug("Parsing message \n{}", s);
+    private static void logMessage(final byte[] bytes) {
+        if (LOG.isDebugEnabled()) {
+            String s = Charsets.UTF_8.decode(ByteBuffer.wrap(bytes)).toString();
+            LOG.debug("Parsing message \n{}", s);
+        }
     }
 
-    private boolean startsWithAdditionalHeader(byte[] bytes) {
+    private static boolean startsWithAdditionalHeader(final byte[] bytes) {
         for (byte[] possibleStart : POSSIBLE_STARTS) {
             int i = 0;
             for (byte b : possibleStart) {
@@ -185,7 +183,7 @@ public final class NetconfXMLToHelloMessageDecoder extends ByteToMessageDecoder
         return false;
     }
 
-    private String additionalHeaderToString(byte[] bytes) {
+    private static String additionalHeaderToString(final byte[] bytes) {
         return Charsets.UTF_8.decode(ByteBuffer.wrap(bytes)).toString();
     }