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/*
* Copyright 2013 Anton Tananaev (anton.tananaev@gmail.com)
*
* 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 java.util.Calendar;
import java.util.TimeZone;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.traccar.BaseProtocolDecoder;
import org.traccar.ServerManager;
import org.traccar.helper.Log;
import org.traccar.model.ExtendedInfoFormatter;
import org.traccar.model.Position;
public class TotemProtocolDecoder extends BaseProtocolDecoder {
public TotemProtocolDecoder(ServerManager serverManager) {
super(serverManager);
}
private static final Pattern patternFirst = Pattern.compile(
"\\$\\$" + // Header
"\\p{XDigit}{2}" + // Length
"(\\d+)\\|" + // IMEI
".." + // Alarm Type
"\\$GPRMC," +
"(\\d{2})(\\d{2})(\\d{2})\\.\\d+," + // Time (HHMMSS.SS)
"([AV])," + // Validity
"(\\d+)(\\d{2}\\.\\d+)," + // Latitude (DDMM.MMMM)
"([NS])," +
"(\\d+)(\\d{2}\\.\\d+)," + // Longitude (DDDMM.MMMM)
"([EW])," +
"(\\d+\\.?\\d*)?," + // Speed
"(\\d+\\.?\\d*)?," + // Course
"(\\d{2})(\\d{2})(\\d{2})" + // Date (DDMMYY)
"[^\\*]+\\*\\p{XDigit}{2}\\|" + // Checksum
"\\d+\\.\\d+\\|" + // PDOP
"(\\d+\\.\\d+)\\|" + // HDOP
"\\d+\\.\\d+\\|" + // VDOP
"(\\d+)\\|" + // IO Status
"\\d+\\|" + // Time
"\\d" + // Charged
"(\\d{3})" + // Battery
"(\\d{4})\\|" + // External Power
"(\\d+)\\|" + // ADC
"(\\p{XDigit}{8})\\|" + // Location Code
"(\\d+)\\|" + // Temperature
"(\\d+.\\d+)\\|" + // Milage
"\\d+\\|" + // Serial Number
".*\\|?" +
"\\p{XDigit}{4}"); // Checksum
private static final Pattern patternSecond = Pattern.compile(
"\\$\\$" + // Header
"\\p{XDigit}{2}" + // Length
"(\\d+)\\|" + // IMEI
".." + // Alarm Type
"(\\d{2})(\\d{2})(\\d{2})" + // Date (DDMMYY)
"(\\d{2})(\\d{2})(\\d{2})\\|" + // Time (HHMMSS)
"([AV])\\|" + // Validity
"(\\d+)(\\d{2}\\.\\d+)\\|" + // Latitude (DDMM.MMMM)
"([NS])\\|" +
"(\\d+)(\\d{2}\\.\\d+)\\|" + // Longitude (DDDMM.MMMM)
"([EW])\\|" +
"(\\d+\\.\\d+)?\\|" + // Speed
"(\\d+)?\\|" + // Course
"(\\d+\\.\\d+)\\|" + // HDOP
"(\\d+)\\|" + // IO Status
"\\d" + // Charged
"(\\d{2})" + // Battery
"(\\d{2})\\|" + // External Power
"(\\d+)\\|" + // ADC
"(\\p{XDigit}{8})\\|" + // Location Code
"(\\d+)\\|" + // Temperature
"(\\d+.\\d+)\\|" + // Milage
"\\d+\\|" + // Serial Number
"\\p{XDigit}{4}"); // Checksum
private static final Pattern patternThird = Pattern.compile(
"\\$\\$" + // Header
"\\p{XDigit}{2}" + // Length
"(\\d+)\\|" + // IMEI
".." + // Alarm Type
"(\\d{2})(\\d{2})(\\d{2})" + // Date (YYMMDD)
"(\\d{2})(\\d{2})(\\d{2})" + // Time (HHMMSS)
"(\\p{XDigit}{4})" + // IO Status
"[01]" + // Charging
"(\\d{2})" + // Battery
"(\\d{2})" + // External Power
"(\\d{4})" + // ADC 1
"(\\d{4})" + // ADC 2
"(\\d{3})" + // Temperature 1
"(\\d{3})" + // Temperature 2
"(\\p{XDigit}{8})" + // Location Code
"([AV])" + // Validity
"(\\d{2})" + // Satellites
"(\\d{3})" + // Course
"(\\d{3})" + // Speed
"(\\d{2}\\.\\d)" + // PDOP
"(\\d{7})" + // Milage
"(\\d{2})(\\d{2}\\.\\d{4})" + // Latitude (DDMM.MMMM)
"([NS])" +
"(\\d{3})(\\d{2}\\.\\d{4})" + // Longitude (DDDMM.MMMM)
"([EW])" +
"\\d{4}" + // Serial Number
"\\p{XDigit}{4}"); // Checksum
private enum MessageFormat {
first,
second,
third
}
@Override
protected Object decode(
ChannelHandlerContext ctx, Channel channel, Object msg)
throws Exception {
String sentence = (String) msg;
// Determine format
MessageFormat format = MessageFormat.third;
if (sentence.contains("$GPRMC")) {
format = MessageFormat.first;
} else {
int index = sentence.indexOf('|');
if (index != -1 && sentence.indexOf('|', index + 1) != -1) {
format = MessageFormat.second;
}
}
// Parse message
Matcher parser = null;
if (format == MessageFormat.first) {
parser = patternFirst.matcher(sentence);
} else if (format == MessageFormat.second) {
parser = patternSecond.matcher(sentence);
} else if (format == MessageFormat.third) {
parser = patternThird.matcher(sentence);
}
if (parser == null || !parser.matches()) {
return null;
}
// Create new position
Position position = new Position();
ExtendedInfoFormatter extendedInfo = new ExtendedInfoFormatter("totem");
Integer index = 1;
// Get device by IMEI
String imei = parser.group(index++);
try {
position.setDeviceId(getDataManager().getDeviceByImei(imei).getId());
} catch(Exception error) {
Log.warning("Unknown device - " + imei);
return null;
}
if (format == MessageFormat.first || format == MessageFormat.second) {
// Time
Calendar time = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
time.clear();
int year = 0;
if (format == MessageFormat.second) {
time.set(Calendar.DAY_OF_MONTH, Integer.valueOf(parser.group(index++)));
time.set(Calendar.MONTH, Integer.valueOf(parser.group(index++)) - 1);
year = Integer.valueOf(parser.group(index++));
time.set(Calendar.YEAR, 2000 + year);
}
time.set(Calendar.HOUR, Integer.valueOf(parser.group(index++)));
time.set(Calendar.MINUTE, Integer.valueOf(parser.group(index++)));
time.set(Calendar.SECOND, Integer.valueOf(parser.group(index++)));
// Validity
position.setValid(parser.group(index++).compareTo("A") == 0);
// Latitude
Double latitude = Double.valueOf(parser.group(index++));
latitude += Double.valueOf(parser.group(index++)) / 60;
if (parser.group(index++).compareTo("S") == 0) latitude = -latitude;
position.setLatitude(latitude);
// Longitude
Double longitude = Double.valueOf(parser.group(index++));
longitude += Double.valueOf(parser.group(index++)) / 60;
if (parser.group(index++).compareTo("W") == 0) longitude = -longitude;
position.setLongitude(longitude);
// Speed
String speed = parser.group(index++);
if (speed != null) {
position.setSpeed(Double.valueOf(speed));
} else {
position.setSpeed(0.0);
}
// Course
String course = parser.group(index++);
if (course != null) {
position.setCourse(Double.valueOf(course));
} else {
position.setCourse(0.0);
}
// Date
if (format == MessageFormat.first) {
time.set(Calendar.DAY_OF_MONTH, Integer.valueOf(parser.group(index++)));
time.set(Calendar.MONTH, Integer.valueOf(parser.group(index++)) - 1);
year = Integer.valueOf(parser.group(index++));
time.set(Calendar.YEAR, 2000 + year);
}
if (year == 0) {
return null; // ignore invalid data
}
position.setTime(time.getTime());
// Altitude
position.setAltitude(0.0);
// Accuracy
extendedInfo.set("hdop", parser.group(index++));
// IO Status
extendedInfo.set("io", parser.group(index++));
// Power
extendedInfo.set("battery", parser.group(index++));
extendedInfo.set("power", Double.valueOf(parser.group(index++)));
// ADC
extendedInfo.set("adc", parser.group(index++));
// Location Code
extendedInfo.set("lac", parser.group(index++));
// Temperature
extendedInfo.set("temperature", parser.group(index++));
// Milage
extendedInfo.set("milage", parser.group(index++));
} else if (format == MessageFormat.third) {
// Time
Calendar time = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
time.clear();
time.set(Calendar.YEAR, 2000 + Integer.valueOf(parser.group(index++)));
time.set(Calendar.MONTH, Integer.valueOf(parser.group(index++)) - 1);
time.set(Calendar.DAY_OF_MONTH, Integer.valueOf(parser.group(index++)));
time.set(Calendar.HOUR, Integer.valueOf(parser.group(index++)));
time.set(Calendar.MINUTE, Integer.valueOf(parser.group(index++)));
time.set(Calendar.SECOND, Integer.valueOf(parser.group(index++)));
position.setTime(time.getTime());
// IO Status
extendedInfo.set("io", parser.group(index++));
// Power
extendedInfo.set("battery", Double.valueOf(parser.group(index++)) / 10);
extendedInfo.set("power", Double.valueOf(parser.group(index++)));
// ADC
extendedInfo.set("adc1", parser.group(index++));
extendedInfo.set("adc2", parser.group(index++));
// Temperature
extendedInfo.set("temperature1", parser.group(index++));
extendedInfo.set("temperature2", parser.group(index++));
// Location Code
extendedInfo.set("lac", parser.group(index++));
// Validity
position.setValid(parser.group(index++).compareTo("A") == 0 ? true : false);
// Satellites
extendedInfo.set("satellites", parser.group(index++));
// Course
position.setCourse(Double.valueOf(parser.group(index++)));
// Speed
position.setSpeed(Double.valueOf(parser.group(index++)));
// PDOP
extendedInfo.set("pdop", parser.group(index++));
// Milage
extendedInfo.set("milage", parser.group(index++));
// Latitude
Double latitude = Double.valueOf(parser.group(index++));
latitude += Double.valueOf(parser.group(index++)) / 60;
if (parser.group(index++).compareTo("S") == 0) latitude = -latitude;
position.setLatitude(latitude);
// Longitude
Double longitude = Double.valueOf(parser.group(index++));
longitude += Double.valueOf(parser.group(index++)) / 60;
if (parser.group(index++).compareTo("W") == 0) longitude = -longitude;
position.setLongitude(longitude);
}
// Extended info
position.setExtendedInfo(extendedInfo.toString());
return position;
}
}
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