1 files changed, 62 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/PstProtocolEncoder.java b/src/main/java/org/traccar/protocol/PstProtocolEncoder.java
new file mode 100644
index 000000000..f3d193324
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/PstProtocolEncoder.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2020 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.helper.Checksum;
+import org.traccar.model.Command;
+
+public class PstProtocolEncoder extends BaseProtocolEncoder {
+
+    public PstProtocolEncoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    private ByteBuf encodeContent(long deviceId, int type, int data1, int data2) {
+
+        ByteBuf buf = Unpooled.buffer();
+
+        buf.writeInt((int) Long.parseLong(getUniqueId(deviceId)));
+        buf.writeByte(0x06); // version
+
+        buf.writeInt(1); // index
+        buf.writeByte(PstProtocolDecoder.MSG_COMMAND);
+        buf.writeShort(type);
+        buf.writeShort(data1);
+        buf.writeShort(data2);
+
+        buf.writeShort(Checksum.crc16(Checksum.CRC16_XMODEM, buf.nioBuffer()));
+
+        return buf;
+    }
+
+    @Override
+    protected Object encodeCommand(Command command) {
+
+        switch (command.getType()) {
+            case Command.TYPE_ENGINE_STOP:
+                return encodeContent(command.getDeviceId(), 0x0002, 0xffff, 0xffff);
+            case Command.TYPE_ENGINE_RESUME:
+                return encodeContent(command.getDeviceId(), 0x0001, 0xffff, 0xffff);
+            default:
+                return null;
+        }
+    }
+
+}