- Migrate X,Y,W protocols

- Add BufferUtil helper class

19 files changed, 129 insertions, 100 deletions

diff --git a/src/org/traccar/helper/BufferUtil.java b/src/org/traccar/helper/BufferUtil.java
new file mode 100644
index 000000000..b2768dbfd
--- /dev/null
+++ b/src/org/traccar/helper/BufferUtil.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2018 Andrey Kunitsyn (andrey@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.helper;
+
+import java.nio.charset.StandardCharsets;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.ByteBufUtil;
+import io.netty.buffer.Unpooled;
+
+public class BufferUtil {
+
+    public static int indexOf(String needle, ByteBuf haystack) {
+        return ByteBufUtil.indexOf(
+                Unpooled.wrappedBuffer(needle.getBytes(StandardCharsets.US_ASCII)), haystack);
+    }
+
+    public static int indexOf(String needle, ByteBuf haystack, int startIndex, int endIndex) {
+        int index = ByteBufUtil.indexOf(
+                Unpooled.wrappedBuffer(needle.getBytes(StandardCharsets.US_ASCII)),
+                Unpooled.wrappedBuffer(haystack.array(), startIndex, endIndex - startIndex));
+        return (index != -1) ? (startIndex + index) : -1;
+    }
+
+}
diff --git a/src/org/traccar/protocol/AtrackFrameDecoder.java b/src/org/traccar/protocol/AtrackFrameDecoder.java
index a37b5d0f8..4e1758f2d 100644
--- a/src/org/traccar/protocol/AtrackFrameDecoder.java
+++ b/src/org/traccar/protocol/AtrackFrameDecoder.java
@@ -16,13 +16,10 @@
 package org.traccar.protocol;
 
 import io.netty.buffer.ByteBuf;
-import io.netty.buffer.ByteBufUtil;
-import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import io.netty.channel.ChannelHandlerContext;
 import org.traccar.BaseFrameDecoder;
-
-import java.nio.charset.StandardCharsets;
+import org.traccar.helper.BufferUtil;
 
 public class AtrackFrameDecoder extends BaseFrameDecoder {
 
@@ -51,8 +48,7 @@ public class AtrackFrameDecoder extends BaseFrameDecoder {
 
             } else {
 
-                ByteBuf delimiter = Unpooled.wrappedBuffer("\r\n".getBytes(StandardCharsets.US_ASCII));
-                int endIndex = ByteBufUtil.indexOf(delimiter, buf);
+                int endIndex = BufferUtil.indexOf("\r\n", buf);
                 if (endIndex > 0) {
                     return buf.readBytes(endIndex - buf.readerIndex() + 2);
                 }
diff --git a/src/org/traccar/protocol/EnforaProtocolDecoder.java b/src/org/traccar/protocol/EnforaProtocolDecoder.java
index bb7be2209..d78be685f 100644
--- a/src/org/traccar/protocol/EnforaProtocolDecoder.java
+++ b/src/org/traccar/protocol/EnforaProtocolDecoder.java
@@ -16,11 +16,10 @@
 package org.traccar.protocol;
 
 import io.netty.buffer.ByteBuf;
-import io.netty.buffer.ByteBufUtil;
-import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
 import org.traccar.DeviceSession;
+import org.traccar.helper.BufferUtil;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
@@ -83,8 +82,7 @@ public class EnforaProtocolDecoder extends BaseProtocolDecoder {
         }
 
         // Find NMEA sentence
-        ByteBuf header = Unpooled.wrappedBuffer("GPRMC".getBytes(StandardCharsets.US_ASCII));
-        int start = ByteBufUtil.indexOf(header, buf);
+        int start = BufferUtil.indexOf("GPRMC", buf);
         if (start == -1) {
             return null;
         }
diff --git a/src/org/traccar/protocol/WatchFrameDecoder.java b/src/org/traccar/protocol/WatchFrameDecoder.java
index 0009ef30f..1e2f0cea3 100644
--- a/src/org/traccar/protocol/WatchFrameDecoder.java
+++ b/src/org/traccar/protocol/WatchFrameDecoder.java
@@ -15,19 +15,20 @@
  */
 package org.traccar.protocol;
 
-import org.jboss.netty.buffer.ChannelBuffer;
-import org.jboss.netty.buffer.ChannelBuffers;
-import org.jboss.netty.channel.Channel;
-import org.jboss.netty.channel.ChannelHandlerContext;
-import org.jboss.netty.handler.codec.frame.FrameDecoder;
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import io.netty.channel.Channel;
+import io.netty.channel.ChannelHandlerContext;
 
 import java.nio.charset.StandardCharsets;
 
-public class WatchFrameDecoder extends FrameDecoder {
+import org.traccar.BaseFrameDecoder;
+
+public class WatchFrameDecoder extends BaseFrameDecoder {
 
     @Override
     protected Object decode(
-            ChannelHandlerContext ctx, Channel channel, ChannelBuffer buf) throws Exception {
+            ChannelHandlerContext ctx, Channel channel, ByteBuf buf) throws Exception {
 
         int idIndex = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) '*') + 1;
         if (idIndex <= 0) {
@@ -56,7 +57,7 @@ public class WatchFrameDecoder extends FrameDecoder {
         int length = Integer.parseInt(
                 buf.toString(lengthIndex, payloadIndex - lengthIndex, StandardCharsets.US_ASCII), 16);
         if (buf.readableBytes() >= payloadIndex + 1 + length + 1) {
-            ChannelBuffer frame = ChannelBuffers.dynamicBuffer();
+            ByteBuf frame = Unpooled.buffer();
             int endIndex = buf.readerIndex() + payloadIndex + 1 + length + 1;
             while (buf.readerIndex() < endIndex) {
                 byte b = buf.readByte();
diff --git a/src/org/traccar/protocol/WatchProtocol.java b/src/org/traccar/protocol/WatchProtocol.java
index 2be2dc9ae..6f9a4a882 100644
--- a/src/org/traccar/protocol/WatchProtocol.java
+++ b/src/org/traccar/protocol/WatchProtocol.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2017 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2018 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,13 +15,13 @@
  */
 package org.traccar.protocol;
 
-import org.jboss.netty.bootstrap.ServerBootstrap;
-import org.jboss.netty.channel.ChannelPipeline;
-import org.jboss.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
+import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
 import org.traccar.model.Command;
 
+import io.netty.handler.codec.string.StringEncoder;
+
 import java.util.List;
 
 public class WatchProtocol extends BaseProtocol {
@@ -47,9 +47,9 @@ public class WatchProtocol extends BaseProtocol {
 
     @Override
     public void initTrackerServers(List<TrackerServer> serverList) {
-        serverList.add(new TrackerServer(new ServerBootstrap(), getName()) {
+        serverList.add(new TrackerServer(false, getName()) {
             @Override
-            protected void addSpecificHandlers(ChannelPipeline pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline) {
                 pipeline.addLast("frameDecoder", new WatchFrameDecoder());
                 pipeline.addLast("stringEncoder", new StringEncoder());
                 pipeline.addLast("objectEncoder", new WatchProtocolEncoder());
diff --git a/src/org/traccar/protocol/WatchProtocolDecoder.java b/src/org/traccar/protocol/WatchProtocolDecoder.java
index f55b6f7be..a5bdb6d62 100644
--- a/src/org/traccar/protocol/WatchProtocolDecoder.java
+++ b/src/org/traccar/protocol/WatchProtocolDecoder.java
@@ -15,8 +15,8 @@
  */
 package org.traccar.protocol;
 
-import org.jboss.netty.buffer.ChannelBuffer;
-import org.jboss.netty.channel.Channel;
+import io.netty.buffer.ByteBuf;
+import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
 import org.traccar.Context;
 import org.traccar.DeviceSession;
@@ -176,7 +176,7 @@ public class WatchProtocolDecoder extends BaseProtocolDecoder {
     protected Object decode(
             Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
 
-        ChannelBuffer buf = (ChannelBuffer) msg;
+        ByteBuf buf = (ByteBuf) msg;
 
         buf.skipBytes(1); // header
         manufacturer = buf.readBytes(2).toString(StandardCharsets.US_ASCII);
@@ -225,7 +225,7 @@ public class WatchProtocolDecoder extends BaseProtocolDecoder {
 
             sendResponse(channel, id, index, "LK");
 
-            if (buf.readable()) {
+            if (buf.isReadable()) {
                 String[] values = buf.toString(StandardCharsets.US_ASCII).split(",");
                 if (values.length >= 3) {
                     Position position = new Position(getProtocolName());
@@ -259,7 +259,7 @@ public class WatchProtocolDecoder extends BaseProtocolDecoder {
 
         } else if (type.equals("PULSE") || type.equals("heart") || type.equals("bphrt")) {
 
-            if (buf.readable()) {
+            if (buf.isReadable()) {
 
                 Position position = new Position(getProtocolName());
                 position.setDeviceId(deviceSession.getDeviceId());
diff --git a/src/org/traccar/protocol/WatchProtocolEncoder.java b/src/org/traccar/protocol/WatchProtocolEncoder.java
index 4c87f3abd..b2d35e702 100644
--- a/src/org/traccar/protocol/WatchProtocolEncoder.java
+++ b/src/org/traccar/protocol/WatchProtocolEncoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2017 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2018 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,7 +15,7 @@
  */
 package org.traccar.protocol;
 
-import org.jboss.netty.channel.Channel;
+import io.netty.channel.Channel;
 import org.traccar.StringProtocolEncoder;
 import org.traccar.helper.DataConverter;
 import org.traccar.helper.Log;
@@ -47,7 +47,7 @@ public class WatchProtocolEncoder extends StringProtocolEncoder implements Strin
         boolean hasIndex = false;
         String manufacturer = "CS";
         if (channel != null) {
-            WatchProtocolDecoder decoder = channel.getPipeline().get(WatchProtocolDecoder.class);
+            WatchProtocolDecoder decoder = channel.pipeline().get(WatchProtocolDecoder.class);
             if (decoder != null) {
                 hasIndex = decoder.getHasIndex();
                 manufacturer = decoder.getManufacturer();
diff --git a/src/org/traccar/protocol/WondexFrameDecoder.java b/src/org/traccar/protocol/WondexFrameDecoder.java
index c17bcd078..b09306b57 100644
--- a/src/org/traccar/protocol/WondexFrameDecoder.java
+++ b/src/org/traccar/protocol/WondexFrameDecoder.java
@@ -15,14 +15,11 @@
  */
 package org.traccar.protocol;
 
-import java.nio.charset.StandardCharsets;
-
 import org.traccar.BaseFrameDecoder;
 import org.traccar.NetworkMessage;
+import org.traccar.helper.BufferUtil;
 
 import io.netty.buffer.ByteBuf;
-import io.netty.buffer.ByteBufUtil;
-import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import io.netty.channel.ChannelHandlerContext;
 
@@ -49,8 +46,7 @@ public class WondexFrameDecoder extends BaseFrameDecoder {
 
         } else {
 
-            ByteBuf delimiter = Unpooled.wrappedBuffer("\r\n".getBytes(StandardCharsets.US_ASCII));
-            int index = ByteBufUtil.indexOf(delimiter, buf);
+            int index = BufferUtil.indexOf("\r\n", buf);
             if (index != -1) {
                 ByteBuf frame = buf.readBytes(index - buf.readerIndex());
                 buf.skipBytes(2);
diff --git a/src/org/traccar/protocol/XexunFrameDecoder.java b/src/org/traccar/protocol/XexunFrameDecoder.java
index 801fb4d59..15011ac7a 100644
--- a/src/org/traccar/protocol/XexunFrameDecoder.java
+++ b/src/org/traccar/protocol/XexunFrameDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012 - 2016 Anton Tananaev (anton@traccar.org)
+ * Copyright 2012 - 2018 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,31 +15,32 @@
  */
 package org.traccar.protocol;
 
-import org.jboss.netty.buffer.ChannelBuffer;
-import org.jboss.netty.channel.Channel;
-import org.jboss.netty.channel.ChannelHandlerContext;
-import org.jboss.netty.handler.codec.frame.FrameDecoder;
-import org.traccar.helper.StringFinder;
+import org.traccar.BaseFrameDecoder;
+import org.traccar.helper.BufferUtil;
 
-public class XexunFrameDecoder extends FrameDecoder {
+import io.netty.buffer.ByteBuf;
+import io.netty.channel.Channel;
+import io.netty.channel.ChannelHandlerContext;
+
+public class XexunFrameDecoder extends BaseFrameDecoder {
 
     @Override
     protected Object decode(
-            ChannelHandlerContext ctx, Channel channel, ChannelBuffer buf) throws Exception {
+            ChannelHandlerContext ctx, Channel channel, ByteBuf buf) throws Exception {
 
         if (buf.readableBytes() < 80) {
             return null;
         }
 
-        int beginIndex = buf.indexOf(buf.readerIndex(), buf.writerIndex(), new StringFinder("GPRMC"));
+        int beginIndex = BufferUtil.indexOf("GPRMC", buf);
         if (beginIndex == -1) {
-            beginIndex = buf.indexOf(buf.readerIndex(), buf.writerIndex(), new StringFinder("GNRMC"));
+            beginIndex = BufferUtil.indexOf("GNRMC", buf);
             if (beginIndex == -1) {
                 return null;
             }
         }
 
-        int identifierIndex = buf.indexOf(beginIndex, buf.writerIndex(), new StringFinder("imei:"));
+        int identifierIndex = BufferUtil.indexOf("imei:", buf, beginIndex, buf.writerIndex());
         if (identifierIndex == -1) {
             return null;
         }
diff --git a/src/org/traccar/protocol/XexunProtocol.java b/src/org/traccar/protocol/XexunProtocol.java
index b90cbfaaf..11e0e0761 100644
--- a/src/org/traccar/protocol/XexunProtocol.java
+++ b/src/org/traccar/protocol/XexunProtocol.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2016 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2018 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,16 +15,16 @@
  */
 package org.traccar.protocol;
 
-import org.jboss.netty.bootstrap.ServerBootstrap;
-import org.jboss.netty.channel.ChannelPipeline;
-import org.jboss.netty.handler.codec.frame.LineBasedFrameDecoder;
-import org.jboss.netty.handler.codec.string.StringDecoder;
-import org.jboss.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.Context;
+import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
 import org.traccar.model.Command;
 
+import io.netty.handler.codec.LineBasedFrameDecoder;
+import io.netty.handler.codec.string.StringDecoder;
+import io.netty.handler.codec.string.StringEncoder;
+
 import java.util.List;
 
 public class XexunProtocol extends BaseProtocol {
@@ -38,9 +38,9 @@ public class XexunProtocol extends BaseProtocol {
 
     @Override
     public void initTrackerServers(List<TrackerServer> serverList) {
-        serverList.add(new TrackerServer(new ServerBootstrap(), getName()) {
+        serverList.add(new TrackerServer(false, getName()) {
             @Override
-            protected void addSpecificHandlers(ChannelPipeline pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline) {
                 boolean full = Context.getConfig().getBoolean(getName() + ".extended");
                 if (full) {
                     pipeline.addLast("frameDecoder", new LineBasedFrameDecoder(1024)); // tracker bug \n\r
diff --git a/src/org/traccar/protocol/XexunProtocolDecoder.java b/src/org/traccar/protocol/XexunProtocolDecoder.java
index a06a86021..42699c272 100644
--- a/src/org/traccar/protocol/XexunProtocolDecoder.java
+++ b/src/org/traccar/protocol/XexunProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012 - 2017 Anton Tananaev (anton@traccar.org)
+ * Copyright 2012 - 2018 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,7 +15,7 @@
  */
 package org.traccar.protocol;
 
-import org.jboss.netty.channel.Channel;
+import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
 import org.traccar.DeviceSession;
 import org.traccar.helper.DateBuilder;
diff --git a/src/org/traccar/protocol/XirgoProtocol.java b/src/org/traccar/protocol/XirgoProtocol.java
index 13aa8fde1..18017bcdb 100644
--- a/src/org/traccar/protocol/XirgoProtocol.java
+++ b/src/org/traccar/protocol/XirgoProtocol.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2017 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2018 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,16 +15,15 @@
  */
 package org.traccar.protocol;
 
-import org.jboss.netty.bootstrap.ConnectionlessBootstrap;
-import org.jboss.netty.bootstrap.ServerBootstrap;
-import org.jboss.netty.channel.ChannelPipeline;
-import org.jboss.netty.handler.codec.string.StringDecoder;
-import org.jboss.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
+import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
 import org.traccar.model.Command;
 
+import io.netty.handler.codec.string.StringDecoder;
+import io.netty.handler.codec.string.StringEncoder;
+
 import java.util.List;
 
 public class XirgoProtocol extends BaseProtocol {
@@ -37,9 +36,9 @@ public class XirgoProtocol extends BaseProtocol {
 
     @Override
     public void initTrackerServers(List<TrackerServer> serverList) {
-        serverList.add(new TrackerServer(new ServerBootstrap(), getName()) {
+        serverList.add(new TrackerServer(false, getName()) {
             @Override
-            protected void addSpecificHandlers(ChannelPipeline pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline) {
                 pipeline.addLast("frameDecoder", new CharacterDelimiterFrameDecoder(1024, "##"));
                 pipeline.addLast("stringEncoder", new StringEncoder());
                 pipeline.addLast("stringDecoder", new StringDecoder());
@@ -47,9 +46,9 @@ public class XirgoProtocol extends BaseProtocol {
                 pipeline.addLast("objectDecoder", new XirgoProtocolDecoder(XirgoProtocol.this));
             }
         });
-        serverList.add(new TrackerServer(new ConnectionlessBootstrap(), getName()) {
+        serverList.add(new TrackerServer(true, getName()) {
             @Override
-            protected void addSpecificHandlers(ChannelPipeline pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline) {
                 pipeline.addLast("stringEncoder", new StringEncoder());
                 pipeline.addLast("stringDecoder", new StringDecoder());
                 pipeline.addLast("objectEncoder", new XirgoProtocolEncoder());
diff --git a/src/org/traccar/protocol/XirgoProtocolDecoder.java b/src/org/traccar/protocol/XirgoProtocolDecoder.java
index 5cda4aed3..878715e40 100644
--- a/src/org/traccar/protocol/XirgoProtocolDecoder.java
+++ b/src/org/traccar/protocol/XirgoProtocolDecoder.java
@@ -15,7 +15,7 @@
  */
 package org.traccar.protocol;
 
-import org.jboss.netty.channel.Channel;
+import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
 import org.traccar.DeviceSession;
 import org.traccar.helper.Parser;
diff --git a/src/org/traccar/protocol/Xt013Protocol.java b/src/org/traccar/protocol/Xt013Protocol.java
index ad3e24df0..8e43e8f0b 100644
--- a/src/org/traccar/protocol/Xt013Protocol.java
+++ b/src/org/traccar/protocol/Xt013Protocol.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2018 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,14 +15,14 @@
  */
 package org.traccar.protocol;
 
-import org.jboss.netty.bootstrap.ServerBootstrap;
-import org.jboss.netty.channel.ChannelPipeline;
-import org.jboss.netty.handler.codec.frame.LineBasedFrameDecoder;
-import org.jboss.netty.handler.codec.string.StringDecoder;
-import org.jboss.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
+import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
 
+import io.netty.handler.codec.LineBasedFrameDecoder;
+import io.netty.handler.codec.string.StringDecoder;
+import io.netty.handler.codec.string.StringEncoder;
+
 import java.util.List;
 
 public class Xt013Protocol extends BaseProtocol {
@@ -33,9 +33,9 @@ public class Xt013Protocol extends BaseProtocol {
 
     @Override
     public void initTrackerServers(List<TrackerServer> serverList) {
-        serverList.add(new TrackerServer(new ServerBootstrap(), getName()) {
+        serverList.add(new TrackerServer(false, getName()) {
             @Override
-            protected void addSpecificHandlers(ChannelPipeline pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline) {
                 pipeline.addLast("frameDecoder", new LineBasedFrameDecoder(1024));
                 pipeline.addLast("stringDecoder", new StringDecoder());
                 pipeline.addLast("stringEncoder", new StringEncoder());
diff --git a/src/org/traccar/protocol/Xt013ProtocolDecoder.java b/src/org/traccar/protocol/Xt013ProtocolDecoder.java
index a92afd778..fda7c59ea 100644
--- a/src/org/traccar/protocol/Xt013ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Xt013ProtocolDecoder.java
@@ -15,7 +15,7 @@
  */
 package org.traccar.protocol;
 
-import org.jboss.netty.channel.Channel;
+import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
 import org.traccar.DeviceSession;
 import org.traccar.helper.Parser;
diff --git a/src/org/traccar/protocol/Xt2400Protocol.java b/src/org/traccar/protocol/Xt2400Protocol.java
index 0c5e9cd4c..08b281554 100644
--- a/src/org/traccar/protocol/Xt2400Protocol.java
+++ b/src/org/traccar/protocol/Xt2400Protocol.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 - 2018 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,9 +15,8 @@
  */
 package org.traccar.protocol;
 
-import org.jboss.netty.bootstrap.ConnectionlessBootstrap;
-import org.jboss.netty.channel.ChannelPipeline;
 import org.traccar.BaseProtocol;
+import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
 
 import java.util.List;
@@ -30,9 +29,9 @@ public class Xt2400Protocol extends BaseProtocol {
 
     @Override
     public void initTrackerServers(List<TrackerServer> serverList) {
-        serverList.add(new TrackerServer(new ConnectionlessBootstrap(), getName()) {
+        serverList.add(new TrackerServer(true, getName()) {
             @Override
-            protected void addSpecificHandlers(ChannelPipeline pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline) {
                 pipeline.addLast("objectDecoder", new Xt2400ProtocolDecoder(Xt2400Protocol.this));
             }
         });
diff --git a/src/org/traccar/protocol/Xt2400ProtocolDecoder.java b/src/org/traccar/protocol/Xt2400ProtocolDecoder.java
index 1be943e98..25395238c 100644
--- a/src/org/traccar/protocol/Xt2400ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Xt2400ProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 - 2018 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,8 +15,8 @@
  */
 package org.traccar.protocol;
 
-import org.jboss.netty.buffer.ChannelBuffer;
-import org.jboss.netty.channel.Channel;
+import io.netty.buffer.ByteBuf;
+import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
 import org.traccar.Context;
 import org.traccar.DeviceSession;
@@ -103,7 +103,7 @@ public class Xt2400ProtocolDecoder extends BaseProtocolDecoder {
     protected Object decode(
             Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
 
-        ChannelBuffer buf = (ChannelBuffer) msg;
+        ByteBuf buf = (ByteBuf) msg;
 
         byte[] format = null;
         if (formats.size() > 1) {
diff --git a/src/org/traccar/protocol/YwtProtocol.java b/src/org/traccar/protocol/YwtProtocol.java
index 412365ecb..c026fc61a 100644
--- a/src/org/traccar/protocol/YwtProtocol.java
+++ b/src/org/traccar/protocol/YwtProtocol.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2018 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,12 +15,11 @@
  */
 package org.traccar.protocol;
 
-import org.jboss.netty.bootstrap.ServerBootstrap;
-import org.jboss.netty.channel.ChannelPipeline;
-import org.jboss.netty.handler.codec.frame.LineBasedFrameDecoder;
-import org.jboss.netty.handler.codec.string.StringDecoder;
-import org.jboss.netty.handler.codec.string.StringEncoder;
+import io.netty.handler.codec.LineBasedFrameDecoder;
+import io.netty.handler.codec.string.StringDecoder;
+import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
+import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
 
 import java.util.List;
@@ -33,9 +32,9 @@ public class YwtProtocol extends BaseProtocol {
 
     @Override
     public void initTrackerServers(List<TrackerServer> serverList) {
-        serverList.add(new TrackerServer(new ServerBootstrap(), getName()) {
+        serverList.add(new TrackerServer(false, getName()) {
             @Override
-            protected void addSpecificHandlers(ChannelPipeline pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline) {
                 pipeline.addLast("frameDecoder", new LineBasedFrameDecoder(1024));
                 pipeline.addLast("stringEncoder", new StringEncoder());
                 pipeline.addLast("stringDecoder", new StringDecoder());
diff --git a/src/org/traccar/protocol/YwtProtocolDecoder.java b/src/org/traccar/protocol/YwtProtocolDecoder.java
index 3182b838d..4c71b0aea 100644
--- a/src/org/traccar/protocol/YwtProtocolDecoder.java
+++ b/src/org/traccar/protocol/YwtProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 - 2014 Anton Tananaev (anton@traccar.org)
+ * Copyright 2013 - 2018 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,9 +15,10 @@
  */
 package org.traccar.protocol;
 
-import org.jboss.netty.channel.Channel;
+import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
 import org.traccar.DeviceSession;
+import org.traccar.NetworkMessage;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
 import org.traccar.model.Position;
@@ -67,7 +68,7 @@ public class YwtProtocolDecoder extends BaseProtocolDecoder {
                 end = sentence.length();
             }
 
-            channel.write("%AT+SN=" + sentence.substring(start, end));
+            channel.writeAndFlush(new NetworkMessage("%AT+SN=" + sentence.substring(start, end), remoteAddress));
             return null;
         }
 
@@ -104,7 +105,7 @@ public class YwtProtocolDecoder extends BaseProtocolDecoder {
 
         // Send response
         if ((type.equals("KP") || type.equals("EP")) && channel != null) {
-            channel.write("%AT+" + type + "=" + reportId + "\r\n");
+            channel.writeAndFlush(new NetworkMessage("%AT+" + type + "=" + reportId + "\r\n", remoteAddress));
         }
 
         return position;