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/*
* Copyright 2016 - 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.Unpooled;
import io.netty.channel.Channel;
import org.traccar.BaseProtocolDecoder;
import org.traccar.session.DeviceSession;
import org.traccar.NetworkMessage;
import org.traccar.Protocol;
import org.traccar.helper.DateBuilder;
import org.traccar.helper.Parser;
import org.traccar.helper.PatternBuilder;
import org.traccar.model.Position;
import java.net.SocketAddress;
import java.nio.charset.StandardCharsets;
import java.util.Calendar;
import java.util.regex.Pattern;
public class SupermateProtocolDecoder extends BaseProtocolDecoder {
public SupermateProtocolDecoder(Protocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.number("d+:") // header
.number("(d+):") // imei
.number("d+:").text("*,")
.number("(d+),") // command id
.expression("([^,]{2}),") // command
.expression("([AV]),") // validity
.number("(xx)(xx)(xx),") // date (yymmdd)
.number("(xx)(xx)(xx),") // time (hhmmss)
.number("(x)(x{7}),") // latitude
.number("(x)(x{7}),") // longitude
.number("(x{4}),") // speed
.number("(x{4}),") // course
.number("(x{12}),") // status
.number("(x+),") // signal
.number("(d+),") // power
.number("(x{4}),") // oil
.number("(x+)?") // odometer
.any()
.compile();
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
Parser parser = new Parser(PATTERN, (String) msg);
if (!parser.matches()) {
return null;
}
Position position = new Position(getProtocolName());
String imei = parser.next();
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
if (deviceSession == null) {
return null;
}
position.setDeviceId(deviceSession.getDeviceId());
position.set("commandId", parser.next());
position.set(Position.KEY_COMMAND, parser.next());
position.setValid(parser.next().equals("A"));
DateBuilder dateBuilder = new DateBuilder()
.setDate(parser.nextHexInt(0), parser.nextHexInt(0), parser.nextHexInt(0))
.setTime(parser.nextHexInt(0), parser.nextHexInt(0), parser.nextHexInt(0));
position.setTime(dateBuilder.getDate());
if (parser.nextHexInt(0) == 8) {
position.setLatitude(-parser.nextHexInt(0) / 600000.0);
} else {
position.setLatitude(parser.nextHexInt(0) / 600000.0);
}
if (parser.nextHexInt(0) == 8) {
position.setLongitude(-parser.nextHexInt(0) / 600000.0);
} else {
position.setLongitude(parser.nextHexInt(0) / 600000.0);
}
position.setSpeed(parser.nextHexInt(0) / 100.0);
position.setCourse(parser.nextHexInt(0) / 100.0);
position.set(Position.KEY_STATUS, parser.next());
position.set("signal", parser.next());
position.set(Position.KEY_POWER, parser.nextDouble(0));
position.set("oil", parser.nextHexInt(0));
position.set(Position.KEY_ODOMETER, parser.nextHexInt(0));
if (channel != null) {
Calendar calendar = Calendar.getInstance();
String content = String.format("#1:%s:1:*,00000000,UP,%02x%02x%02x,%02x%02x%02x#", imei,
calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH) + 1, calendar.get(Calendar.DAY_OF_MONTH),
calendar.get(Calendar.HOUR_OF_DAY), calendar.get(Calendar.MINUTE), calendar.get(Calendar.SECOND));
channel.writeAndFlush(new NetworkMessage(
Unpooled.copiedBuffer(content, StandardCharsets.US_ASCII), remoteAddress));
}
return position;
}
}
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