Merge branch 'traccar:master' into master

1 files changed, 85 insertions, 0 deletions

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..dc34f7b4e
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/HuaShengProtocolEncoder.java
@@ -0,0 +1,85 @@
+/*
+ * 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(int type, ByteBuf content) {
+
+        ByteBuf buf = Unpooled.buffer();
+        buf.writeByte(0xC0);
+        buf.writeShort(0x0000); // flag and version
+        buf.writeShort(12 + content.readableBytes());
+        buf.writeShort(type);
+        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(HuaShengProtocolDecoder.MSG_SET_REQ, content);
+            case Command.TYPE_OUTPUT_CONTROL:
+                /*
+0x01: Lock the relay1; //relay on
+0x02: Unlock the relay1; //relay off
+0x03: Lock the relay2; //relay2 on
+0x04: Unlock the relay2; //relay2 off
+0x05: Lock the relay3; //relay3 on
+0x06: Unlock the relay3; //realy3 off
+                 */
+                content.writeByte(
+                        (command.getInteger(Command.KEY_INDEX) - 1) * 2
+                        + (2 - command.getInteger(Command.KEY_DATA)));
+                return encodeContent(HuaShengProtocolDecoder.MSG_CTRL_REQ, 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);
+                return encodeContent(HuaShengProtocolDecoder.MSG_SET_REQ, content);
+            case Command.TYPE_SET_SPEED_LIMIT:
+                content.writeShort(0x0004);
+                content.writeShort(6); // length
+                content.writeShort(command.getInteger(Command.KEY_DATA));
+                return encodeContent(HuaShengProtocolDecoder.MSG_SET_REQ, content);
+            default:
+                return null;
+        }
+    }
+
+}