From 59416923dcb3a756eaf532cc4259f2f6625c0762 Mon Sep 17 00:00:00 2001 From: Anton Tananaev Date: Sun, 31 Mar 2019 22:35:39 -0700 Subject: Convert project to gradle --- .../traccar/protocol/MeiligaoProtocolEncoder.java | 86 ++++++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100644 src/main/java/org/traccar/protocol/MeiligaoProtocolEncoder.java (limited to 'src/main/java/org/traccar/protocol/MeiligaoProtocolEncoder.java') 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; + } + } + +} -- cgit v1.2.3