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package org.traccar.protocol;
import org.jboss.netty.buffer.ChannelBuffer;
import org.jboss.netty.buffer.ChannelBuffers;
import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.traccar.BaseProtocolDecoder;
import org.traccar.database.DataManager;
import org.traccar.helper.ChannelBufferTools;
import org.traccar.helper.Log;
import org.traccar.model.Position;
import javax.xml.bind.DatatypeConverter;
import java.net.SocketAddress;
import java.text.SimpleDateFormat;
import java.util.*;
public class T800xProtocolDecoder extends BaseProtocolDecoder {
public T800xProtocolDecoder(T800xProtocol protocol) {
super(protocol);
}
SimpleDateFormat dateFormatGmt = new SimpleDateFormat("yyyy-MMM-dd HH:mm:ss");
SimpleDateFormat dateFormatLocal = new SimpleDateFormat("yyyy-MMM-dd HH:mm:ss");
private static final int MSG_LOGIN = 0x01;
private static final int MSG_GPS = 0x02;
private static final int MSG_HEARTBEAT = 0x03;
private static final int MSG_ALARM = 0x04;
private static final int MSG_STATE = 0x05;
private static final int MSG_SMS = 0x06;
private static final int MSG_OBD = 0x07;
private static final int MSG_INTERACTIVE = 0x80;
private static final int MSG_DATA = 0x81;
private Long deviceId;
private void sendLoginResponse(Channel channel, int type, int index, String imei) {
if (channel != null) {
int length=7+(imei.length()/2+1);
ChannelBuffer response = ChannelBuffers.buffer(length);
response.writeByte(0x23);
response.writeByte(0x23); // header
response.writeByte(type);
response.writeByte(0x00);
response.writeByte(length); // length
response.writeShort(0x0001);//imei
//IMEI
response.writeBytes(DatatypeConverter.parseHexBinary("0" + imei));
channel.write(response);
}
}
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
ChannelBuffer buf = (ChannelBuffer) msg;
List<Position> positions=new ArrayList<Position>();
//List<Status> statusList=new ArrayList<Status>();
int i=0;
while (buf.readable()){
i++;
buf.skipBytes(2); // header
int type = buf.readUnsignedByte(); // type
buf.readShort(); // length
int index = buf.readUnsignedShort(); // index
String imei = ChannelBuffers.hexDump(buf.readBytes(8)).substring(1); // imei
if (type == MSG_LOGIN) {
if (identify(imei, channel)) {
sendLoginResponse(channel, type, index, imei); // send login response
}
return null;
} else if (deviceId != null &&
(type == MSG_GPS || type == MSG_ALARM)) {
//ExtendedInfoFormatter extendedInfo = new ExtendedInfoFormatter(getProtocol());
//extendedInfo.set("index", index);
//ACC ON Interval TODO
buf.skipBytes(2);
//Acc OFF Interval TODO
buf.skipBytes(2);
//Angel Degree TODO
buf.skipBytes(1);
//Angel Distance TODO
buf.skipBytes(2);
//Speed Alarm TODO
buf.skipBytes(2);
//GPS Status TODO
String locationType = getBits(buf.readUnsignedByte());
//Gsensor Manager TODO
buf.skipBytes(1);
//Reserve Bit
buf.skipBytes(1);
//HeartBit
buf.skipBytes(1);
//Relay Status
buf.skipBytes(1);
//Drag Alarm Setting
buf.skipBytes(2);
// Digital I/O Status
String binaryDigitalIO = getBits(buf.readUnsignedByte());
//extendedInfo.set("acc", binaryDigitalIO.charAt(1));
//extendedInfo.set("ac", binaryDigitalIO.charAt(2));
buf.skipBytes(1);
// 2 Analog Input
buf.skipBytes(4);
// Alarm Data
String alarmData = ChannelBuffers.hexDump(buf.readBytes(1));
String statusType=getStatusType(alarmData);
//extendedInfo.set(statusType,true);
if(type == MSG_ALARM)
{
Log.debug("ALARM : "+statusType);
if(alarmData.equals("08") || alarmData.equals("10")){
sendAlarmPacketAfter16Sec(channel,type,index, imei + alarmData);
}else{
sendLoginResponse(channel, type, index, imei + alarmData);
}
}
// Reserve
buf.skipBytes(1);
// Mileage
buf.skipBytes(4);
// Inner Battery Voltage
double batteryVoltage = Double.parseDouble(ChannelBuffers.hexDump(buf.readBytes(1)));
//extendedInfo.set("power", getBatteryPerc(batteryVoltage));
// Time & Date Calculation
Calendar time = Calendar.getInstance();
time.clear();
time.set(Calendar.YEAR, 2000 + Integer.parseInt(ChannelBuffers.hexDump(buf.readBytes(1))));
time.set(Calendar.MONTH, (Integer.parseInt(ChannelBuffers.hexDump(buf.readBytes(1))) - 1));
time.set(Calendar.DAY_OF_MONTH, Integer.parseInt(ChannelBuffers.hexDump(buf.readBytes(1))));
time.set(Calendar.HOUR_OF_DAY, Integer.parseInt(ChannelBuffers.hexDump(buf.readBytes(1))));
time.set(Calendar.MINUTE, Integer.parseInt(ChannelBuffers.hexDump(buf.readBytes(1))));
time.set(Calendar.SECOND, Integer.parseInt(ChannelBuffers.hexDump(buf.readBytes(1))));
if (locationType.charAt(1) == '1') {
Log.debug("GPS DATA");
Position position = new Position();
position.setDeviceId(deviceId);
position.setTime(time.getTime());
// Read Altitude
byte[] altitude = new byte[]{buf.readByte(), buf.readByte(), buf.readByte(), buf.readByte()};
position.setAltitude((double) bytes2Float(altitude, 0));
// Read Longitude & Latitude
byte[] longitude = new byte[]{buf.readByte(), buf.readByte(), buf.readByte(), buf.readByte()};
byte[] latitude = new byte[]{buf.readByte(), buf.readByte(), buf.readByte(), buf.readByte()};
position.setLongitude((double) bytes2Float(longitude, 0));
position.setLatitude((double) bytes2Float(latitude, 0));
// Read Speed
String str_speed = ChannelBuffers.hexDump(buf.readBytes(2));
String result = str_speed.substring(0, 3) + "." + str_speed.substring(3);
position.setSpeed(Double.parseDouble(result) * 0.539957);
//position.setExtendedInfo(extendedInfo.toString());
positions.add(position);
buf.skipBytes(2);
}
else {
Log.debug("LBS DATA");
if(type == MSG_ALARM)
{
/*Status status = new Status();
status.setDate(time.getTime());
status.setDeviceid(deviceId);
status.setVoltage(getBatteryPerc(batteryVoltage));
status.setStatusType(statusType);
statusList.add(status);*/
}
buf.skipBytes(16);
}
} else if (deviceId != null &&
(type == MSG_HEARTBEAT)) {
dateFormatGmt.setTimeZone(TimeZone.getTimeZone("GMT"));
/*Status status = new Status();
status.setDate(dateFormatLocal.parse(dateFormatGmt.format(new Date())));
status.setDeviceid(deviceId);
statusList.add(status);*/
sendLoginResponse(channel, type, index, imei);
}
}
/*MixPacket mixPacket=new MixPacket();
mixPacket.setPositions(positions);
mixPacket.setStatus(statusList);*/
return positions;
}
private void sendAlarmPacketAfter16Sec(final Channel channel,final int type,final int index,final String alarmData) {
new Timer().schedule(new TimerTask() {
@Override
public void run() {
sendLoginResponse(channel, type, index,alarmData);
}
}, 16001);
}
private static String getBits(int flags) {
int hexFlag = Integer.parseInt(Integer.toHexString(flags), 16);
String binaryAlarm = Integer.toBinaryString(hexFlag);
binaryAlarm = (String.format("%8s", binaryAlarm)).replace(' ', '0');
return binaryAlarm;
}
public static float bytes2Float(byte[] bytes, int offset) {
int value;
value = bytes[offset];
value &= 0xff;
value |= ((long) bytes[offset + 1] << 8);
value &= 0xffff;
value |= ((long) bytes[offset + 2] << 16);
value &= 0xffffff;
value |= ((long) bytes[offset + 3] << 24);
return Float.intBitsToFloat(value);
}
public static int getBatteryPerc(double batteryPercentage) {
if (batteryPercentage >= 1 && batteryPercentage < 6) {
return 0;
} else if (batteryPercentage > 5 && batteryPercentage < 11) {
return 1;
} else if (batteryPercentage > 10 && batteryPercentage < 21) {
return 2;
} else if (batteryPercentage > 20 && batteryPercentage < 36) {
return 3;
} else if (batteryPercentage > 35 && batteryPercentage < 71) {
return 4;
} else if (batteryPercentage > 70 && batteryPercentage < 96) {
return 5;
} else if (batteryPercentage > 95 && batteryPercentage < 101 || batteryPercentage == 0) {
return 6;
}
return -1;
}
private String getStatusType(String alarmCode) {
String alarmCodeString = "";
if (alarmCode.equals("02")) {
alarmCodeString = "LBA";
}else if (alarmCode.equals("03")) {
alarmCodeString = "SOS";
}else if (alarmCode.equals("08") || alarmCode.equals("10") ) {
alarmCodeString = "VIBALM";
} else if (alarmCode.equals("16")) {
alarmCodeString = "PWROFF";
} else if (alarmCode.equals("15")) {
alarmCodeString = "PWRON";
} else {
alarmCodeString = "NDFND";
}
return alarmCodeString;
}
}
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