diff options
Diffstat (limited to 'src/main/java/org/traccar/protocol/GlobalSatProtocolDecoder.java')
| -rw-r--r-- | src/main/java/org/traccar/protocol/GlobalSatProtocolDecoder.java | 248 |
1 files changed, 248 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/GlobalSatProtocolDecoder.java b/src/main/java/org/traccar/protocol/GlobalSatProtocolDecoder.java new file mode 100644 index 000000000..3d4ab5760 --- /dev/null +++ b/src/main/java/org/traccar/protocol/GlobalSatProtocolDecoder.java @@ -0,0 +1,248 @@ +/* + * Copyright 2013 - 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.Context; +import org.traccar.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.helper.UnitsConverter; +import org.traccar.model.Position; + +import java.net.SocketAddress; +import java.util.regex.Pattern; + +public class GlobalSatProtocolDecoder extends BaseProtocolDecoder { + + private String format0; + private String format1; + + public GlobalSatProtocolDecoder(Protocol protocol) { + super(protocol); + + format0 = Context.getConfig().getString(getProtocolName() + ".format0", "TSPRXAB27GHKLMnaicz*U!"); + format1 = Context.getConfig().getString(getProtocolName() + ".format1", "SARY*U!"); + } + + public void setFormat0(String format) { + format0 = format; + } + + public void setFormat1(String format) { + format1 = format; + } + + private Position decodeOriginal(Channel channel, SocketAddress remoteAddress, String sentence) { + + if (channel != null) { + channel.writeAndFlush(new NetworkMessage("ACK\r", remoteAddress)); + } + + String format; + if (sentence.startsWith("GSr")) { + format = format0; + } else if (sentence.startsWith("GSh")) { + format = format1; + } else { + return null; + } + + // Check that message contains required parameters + if (!format.contains("B") || !format.contains("S") || !(format.contains("1") + || format.contains("2") || format.contains("3")) || !(format.contains("6") + || format.contains("7") || format.contains("8"))) { + return null; + } + + if (format.contains("*")) { + format = format.substring(0, format.indexOf('*')); + sentence = sentence.substring(0, sentence.indexOf('*')); + } + String[] values = sentence.split(","); + + Position position = new Position(getProtocolName()); + + for (int formatIndex = 0, valueIndex = 1; formatIndex < format.length() + && valueIndex < values.length; formatIndex++) { + String value = values[valueIndex]; + + switch (format.charAt(formatIndex)) { + case 'S': + DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, value); + if (deviceSession == null) { + return null; + } + position.setDeviceId(deviceSession.getDeviceId()); + break; + case 'A': + if (value.isEmpty()) { + position.setValid(false); + } else { + position.setValid(Integer.parseInt(value) != 1); + } + break; + case 'B': + DateBuilder dateBuilder = new DateBuilder() + .setDay(Integer.parseInt(value.substring(0, 2))) + .setMonth(Integer.parseInt(value.substring(2, 4))) + .setYear(Integer.parseInt(value.substring(4))); + value = values[++valueIndex]; + dateBuilder + .setHour(Integer.parseInt(value.substring(0, 2))) + .setMinute(Integer.parseInt(value.substring(2, 4))) + .setSecond(Integer.parseInt(value.substring(4))); + position.setTime(dateBuilder.getDate()); + break; + case 'C': + valueIndex += 1; + break; + case '1': + double longitude = Double.parseDouble(value.substring(1)); + if (value.charAt(0) == 'W') { + longitude = -longitude; + } + position.setLongitude(longitude); + break; + case '2': + longitude = Double.parseDouble(value.substring(4)) / 60; + longitude += Integer.parseInt(value.substring(1, 4)); + if (value.charAt(0) == 'W') { + longitude = -longitude; + } + position.setLongitude(longitude); + break; + case '3': + position.setLongitude(Double.parseDouble(value) * 0.000001); + break; + case '6': + double latitude = Double.parseDouble(value.substring(1)); + if (value.charAt(0) == 'S') { + latitude = -latitude; + } + position.setLatitude(latitude); + break; + case '7': + latitude = Double.parseDouble(value.substring(3)) / 60; + latitude += Integer.parseInt(value.substring(1, 3)); + if (value.charAt(0) == 'S') { + latitude = -latitude; + } + position.setLatitude(latitude); + break; + case '8': + position.setLatitude(Double.parseDouble(value) * 0.000001); + break; + case 'G': + position.setAltitude(Double.parseDouble(value)); + break; + case 'H': + position.setSpeed(Double.parseDouble(value)); + break; + case 'I': + position.setSpeed(UnitsConverter.knotsFromKph(Double.parseDouble(value))); + break; + case 'J': + position.setSpeed(UnitsConverter.knotsFromMph(Double.parseDouble(value))); + break; + case 'K': + position.setCourse(Double.parseDouble(value)); + break; + case 'N': + if (value.endsWith("mV")) { + position.set(Position.KEY_BATTERY, + Integer.parseInt(value.substring(0, value.length() - 2)) / 1000.0); + } else { + position.set(Position.KEY_BATTERY_LEVEL, Integer.parseInt(value)); + } + break; + default: + // Unsupported + break; + } + + valueIndex += 1; + } + return position; + } + + private static final Pattern PATTERN = new PatternBuilder() + .text("$") + .number("(d+),") // imei + .number("d+,") // mode + .number("(d+),") // fix + .number("(dd)(dd)(dd),") // date (ddmmyy) + .number("(dd)(dd)(dd),") // time (hhmmss) + .expression("([EW])") + .number("(ddd)(dd.d+),") // longitude (dddmm.mmmm) + .expression("([NS])") + .number("(dd)(dd.d+),") // latitude (ddmm.mmmm) + .number("(d+.?d*),") // altitude + .number("(d+.?d*),") // speed + .number("(d+.?d*)?,") // course + .number("(d+)[,*]") // satellites + .number("(d+.?d*)") // hdop + .compile(); + + private Position decodeAlternative(Channel channel, SocketAddress remoteAddress, String sentence) { + + Parser parser = new Parser(PATTERN, sentence); + if (!parser.matches()) { + return null; + } + + Position position = new Position(getProtocolName()); + + DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next()); + if (deviceSession == null) { + return null; + } + position.setDeviceId(deviceSession.getDeviceId()); + + position.setValid(!parser.next().equals("1")); + position.setTime(parser.nextDateTime(Parser.DateTimeFormat.DMY_HMS)); + position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG_MIN)); + position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG_MIN)); + position.setAltitude(parser.nextDouble(0)); + position.setSpeed(parser.nextDouble(0)); + position.setCourse(parser.nextDouble(0)); + + position.set(Position.KEY_SATELLITES, parser.nextInt(0)); + position.set(Position.KEY_HDOP, parser.nextDouble()); + + return position; + } + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + String sentence = (String) msg; + + if (sentence.startsWith("GS")) { + return decodeOriginal(channel, remoteAddress, sentence); + } else if (sentence.startsWith("$")) { + return decodeAlternative(channel, remoteAddress, sentence); + } + + return null; + } + +} |