1 files changed, 86 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/MeiligaoProtocolEncoder.java b/src/main/java/org/traccar/protocol/MeiligaoProtocolEncoder.java
new file mode 100644
index 000000000..57cbbe0fc
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/MeiligaoProtocolEncoder.java
@@ -0,0 +1,86 @@
+/*
+ * 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.
+ * 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.helper.Checksum;
+import org.traccar.helper.DataConverter;
+import org.traccar.model.Command;
+
+import java.nio.charset.StandardCharsets;
+import java.util.TimeZone;
+
+public class MeiligaoProtocolEncoder extends BaseProtocolEncoder {
+
+    private ByteBuf encodeContent(long deviceId, int type, ByteBuf content) {
+
+        ByteBuf buf = Unpooled.buffer();
+
+        buf.writeByte('@');
+        buf.writeByte('@');
+
+        buf.writeShort(2 + 2 + 7 + 2 + content.readableBytes() + 2 + 2); // message length
+
+        buf.writeBytes(DataConverter.parseHex((getUniqueId(deviceId) + "FFFFFFFFFFFFFF").substring(0, 14)));
+
+        buf.writeShort(type);
+
+        buf.writeBytes(content);
+
+        buf.writeShort(Checksum.crc16(Checksum.CRC16_CCITT_FALSE, buf.nioBuffer()));
+
+        buf.writeByte('\r');
+        buf.writeByte('\n');
+
+        return buf;
+    }
+
+    @Override
+    protected Object encodeCommand(Command command) {
+
+        ByteBuf content = Unpooled.buffer();
+
+        switch (command.getType()) {
+            case Command.TYPE_POSITION_SINGLE:
+                return encodeContent(command.getDeviceId(), MeiligaoProtocolDecoder.MSG_TRACK_ON_DEMAND, content);
+            case Command.TYPE_POSITION_PERIODIC:
+                content.writeShort(command.getInteger(Command.KEY_FREQUENCY) / 10);
+                return encodeContent(command.getDeviceId(), MeiligaoProtocolDecoder.MSG_TRACK_BY_INTERVAL, content);
+            case Command.TYPE_ENGINE_STOP:
+                content.writeByte(0x01);
+                return encodeContent(command.getDeviceId(), MeiligaoProtocolDecoder.MSG_OUTPUT_CONTROL, content);
+            case Command.TYPE_ENGINE_RESUME:
+                content.writeByte(0x00);
+                return encodeContent(command.getDeviceId(), MeiligaoProtocolDecoder.MSG_OUTPUT_CONTROL, content);
+            case Command.TYPE_ALARM_GEOFENCE:
+                content.writeShort(command.getInteger(Command.KEY_RADIUS));
+                return encodeContent(command.getDeviceId(), MeiligaoProtocolDecoder.MSG_MOVEMENT_ALARM, content);
+            case Command.TYPE_SET_TIMEZONE:
+                int offset = TimeZone.getTimeZone(command.getString(Command.KEY_TIMEZONE)).getRawOffset() / 60000;
+                content.writeBytes(String.valueOf(offset).getBytes(StandardCharsets.US_ASCII));
+                return encodeContent(command.getDeviceId(), MeiligaoProtocolDecoder.MSG_TIME_ZONE, content);
+            case Command.TYPE_REQUEST_PHOTO:
+                return encodeContent(command.getDeviceId(), MeiligaoProtocolDecoder.MSG_TAKE_PHOTO, content);
+            case Command.TYPE_REBOOT_DEVICE:
+                return encodeContent(command.getDeviceId(), MeiligaoProtocolDecoder.MSG_REBOOT_GPS, content);
+            default:
+                return null;
+        }
+    }
+
+}