Support HuaSheng commands

3 files changed, 82 insertions, 2 deletions

diff --git a/src/main/java/org/traccar/protocol/HuaShengProtocol.java b/src/main/java/org/traccar/protocol/HuaShengProtocol.java
index b1b61e977..4a0ebe5d7 100644
--- a/src/main/java/org/traccar/protocol/HuaShengProtocol.java
+++ b/src/main/java/org/traccar/protocol/HuaShengProtocol.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2023 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.
@@ -19,6 +19,7 @@ import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
 import org.traccar.config.Config;
+import org.traccar.model.Command;
 
 import javax.inject.Inject;
 
@@ -26,10 +27,16 @@ public class HuaShengProtocol extends BaseProtocol {
 
     @Inject
     public HuaShengProtocol(Config config) {
+        setSupportedDataCommands(
+                Command.TYPE_POSITION_PERIODIC,
+                Command.TYPE_ALARM_ARM,
+                Command.TYPE_ALARM_DISARM,
+                Command.TYPE_SET_SPEED_LIMIT);
         addServer(new TrackerServer(config, getName(), false) {
             @Override
             protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new HuaShengFrameDecoder());
+                pipeline.addLast(new HuaShengProtocolEncoder(HuaShengProtocol.this));
                 pipeline.addLast(new HuaShengProtocolDecoder(HuaShengProtocol.this));
             }
         });
diff --git a/src/main/java/org/traccar/protocol/HuaShengProtocolDecoder.java b/src/main/java/org/traccar/protocol/HuaShengProtocolDecoder.java
index 371691d82..993e36978 100644
--- a/src/main/java/org/traccar/protocol/HuaShengProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/HuaShengProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2023 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.
@@ -48,6 +48,8 @@ public class HuaShengProtocolDecoder extends BaseProtocolDecoder {
     public static final int MSG_UPFAULT_RSP = 0xFF13;
     public static final int MSG_HSO_REQ = 0x0002;
     public static final int MSG_HSO_RSP = 0x0003;
+    public static final int MSG_SET_REQ = 0xAA04;
+    public static final int MSG_SET_RSP = 0xFF05;
 
     private void sendResponse(Channel channel, int type, int index, ByteBuf content) {
         if (channel != null) {
diff --git a/src/main/java/org/traccar/protocol/HuaShengProtocolEncoder.java b/src/main/java/org/traccar/protocol/HuaShengProtocolEncoder.java
new file mode 100644
index 000000000..636196ec4
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/HuaShengProtocolEncoder.java
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2023 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.
+ * 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.protocol;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import org.traccar.BaseProtocolEncoder;
+import org.traccar.Protocol;
+import org.traccar.model.Command;
+
+public class HuaShengProtocolEncoder extends BaseProtocolEncoder {
+
+    public HuaShengProtocolEncoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    private ByteBuf encodeContent(ByteBuf content) {
+
+        ByteBuf buf = Unpooled.buffer();
+        buf.writeByte(0xC0);
+        buf.writeShort(0x0000); // flag and version
+        buf.writeShort(12 + content.readableBytes());
+        buf.writeShort(HuaShengProtocolDecoder.MSG_SET_REQ);
+        buf.writeShort(0); // checksum
+        buf.writeInt(1); // index
+        buf.writeBytes(content);
+        content.release();
+        buf.writeByte(0xC0);
+
+        return buf;
+    }
+
+    @Override
+    protected Object encodeCommand(Command command) {
+
+        ByteBuf content = Unpooled.buffer(0);
+        switch (command.getType()) {
+            case Command.TYPE_POSITION_PERIODIC:
+                content.writeShort(0x0002);
+                content.writeShort(6); // length
+                content.writeShort(command.getInteger(Command.KEY_FREQUENCY));
+                return encodeContent(content);
+            case Command.TYPE_ALARM_ARM:
+            case Command.TYPE_ALARM_DISARM:
+                content.writeShort(0x0001);
+                content.writeShort(5); // length
+                content.writeByte(command.getType().equals(Command.TYPE_ALARM_ARM) ? 1 : 0);
+            case Command.TYPE_SET_SPEED_LIMIT:
+                content.writeShort(0x0004);
+                content.writeShort(6); // length
+                content.writeShort(command.getInteger(Command.KEY_DATA));
+                return encodeContent(content);
+            default:
+                return null;
+        }
+    }
+
+}