2 files changed, 11 insertions, 13 deletions
diff --git a/src/main/java/org/traccar/protocol/TaipStringEncoder.java b/src/main/java/org/traccar/protocol/TaipPrefixEncoder.java
index 6af35937c..b690c176d 100644
--- a/src/main/java/org/traccar/protocol/TaipStringEncoder.java
+++ b/src/main/java/org/traccar/protocol/TaipPrefixEncoder.java
@@ -24,29 +24,24 @@ import org.traccar.Context;
 import org.traccar.Protocol;
 import org.traccar.config.Keys;
 
-import java.nio.charset.StandardCharsets;
 import java.util.List;
 
 @ChannelHandler.Sharable
-public class TaipStringEncoder extends MessageToMessageEncoder<CharSequence> {
+public class TaipPrefixEncoder extends MessageToMessageEncoder<ByteBuf> {
 
     private final Protocol protocol;
 
-    public TaipStringEncoder(Protocol protocol) {
+    public TaipPrefixEncoder(Protocol protocol) {
         this.protocol = protocol;
     }
 
     @Override
-    protected void encode(ChannelHandlerContext ctx, CharSequence msg, List<Object> out) throws Exception {
-        if (msg.length() == 0) {
-            return;
-        }
-        ByteBuf buf = Unpooled.buffer();
+    protected void encode(ChannelHandlerContext ctx, ByteBuf msg, List<Object> out) throws Exception {
         if (Context.getConfig().getBoolean(Keys.PROTOCOL_PREFIX.withPrefix(protocol.getName()))) {
-            buf.writeBytes(new byte[] {0x20, 0x20, 0x06, 0x00});
+            Unpooled.wrappedBuffer(Unpooled.wrappedBuffer(new byte[] {0x20, 0x20, 0x06, 0x00}), msg);
+        } else {
+            out.add(msg);
         }
-        buf.writeCharSequence(msg, StandardCharsets.US_ASCII);
-        out.add(buf);
     }
 
 }
diff --git a/src/main/java/org/traccar/protocol/TaipProtocol.java b/src/main/java/org/traccar/protocol/TaipProtocol.java
index 5df9f7d3c..0966cfd7c 100644
--- a/src/main/java/org/traccar/protocol/TaipProtocol.java
+++ b/src/main/java/org/traccar/protocol/TaipProtocol.java
@@ -16,6 +16,7 @@
 package org.traccar.protocol;
 
 import io.netty.handler.codec.string.StringDecoder;
+import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
@@ -28,16 +29,18 @@ public class TaipProtocol extends BaseProtocol {
             @Override
             protected void addProtocolHandlers(PipelineBuilder pipeline) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '<'));
+                pipeline.addLast(new TaipPrefixEncoder(TaipProtocol.this));
                 pipeline.addLast(new StringDecoder());
-                pipeline.addLast(new TaipStringEncoder(TaipProtocol.this));
+                pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new TaipProtocolDecoder(TaipProtocol.this));
             }
         });
         addServer(new TrackerServer(true, getName()) {
             @Override
             protected void addProtocolHandlers(PipelineBuilder pipeline) {
+                pipeline.addLast(new TaipPrefixEncoder(TaipProtocol.this));
                 pipeline.addLast(new StringDecoder());
-                pipeline.addLast(new TaipStringEncoder(TaipProtocol.this));
+                pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new TaipProtocolDecoder(TaipProtocol.this));
             }
         });