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/*
* Copyright 2014 - 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.channel.Channel;
import org.traccar.BaseProtocolDecoder;
import org.traccar.DeviceSession;
import org.traccar.Protocol;
import org.traccar.helper.BitUtil;
import org.traccar.helper.Parser;
import org.traccar.helper.PatternBuilder;
import org.traccar.model.Position;
import java.net.SocketAddress;
import java.util.regex.Pattern;
public class HaicomProtocolDecoder extends BaseProtocolDecoder {
public HaicomProtocolDecoder(Protocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.text("$GPRS")
.number("(d+),") // imei
.expression("([^,]+),") // version
.number("(dd)(dd)(dd),") // date (yymmdd)
.number("(dd)(dd)(dd),") // time (hhmmss)
.number("(d)") // flags
.number("(dd)(d{5})") // latitude
.number("(ddd)(d{5}),") // longitude
.number("(d+),") // speed
.number("(d+),") // course
.number("(d+),") // status
.number("(d+)?,") // gprs counting value
.number("(d+)?,") // gps power saving counting value
.number("(d+),") // switch status
.number("(d+)") // relay status
.expression("(?:[LH]{2})?") // power status
.number("#V(d+)") // battery
.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());
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
if (deviceSession == null) {
return null;
}
position.setDeviceId(deviceSession.getDeviceId());
position.set(Position.KEY_VERSION_FW, parser.next());
position.setTime(parser.nextDateTime());
int flags = parser.nextInt(0);
position.setValid(BitUtil.check(flags, 0));
double latitude = parser.nextDouble(0) + parser.nextDouble(0) / 60000;
if (BitUtil.check(flags, 2)) {
position.setLatitude(latitude);
} else {
position.setLatitude(-latitude);
}
double longitude = parser.nextDouble(0) + parser.nextDouble(0) / 60000;
if (BitUtil.check(flags, 1)) {
position.setLongitude(longitude);
} else {
position.setLongitude(-longitude);
}
position.setSpeed(parser.nextDouble(0) / 10);
position.setCourse(parser.nextDouble(0) / 10);
position.set(Position.KEY_STATUS, parser.next());
position.set("gprsCount", parser.next());
position.set("powersaveCountdown", parser.next());
position.set(Position.KEY_INPUT, parser.next());
position.set(Position.KEY_OUTPUT, parser.next());
position.set(Position.KEY_BATTERY, parser.nextDouble(0) * 0.1);
return position;
}
}
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