diff options
Diffstat (limited to 'src/main/java/org/traccar/protocol/WialonProtocolDecoder.java')
| -rw-r--r-- | src/main/java/org/traccar/protocol/WialonProtocolDecoder.java | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/WialonProtocolDecoder.java b/src/main/java/org/traccar/protocol/WialonProtocolDecoder.java new file mode 100644 index 000000000..8488ca2d1 --- /dev/null +++ b/src/main/java/org/traccar/protocol/WialonProtocolDecoder.java @@ -0,0 +1,223 @@ +/* + * Copyright 2013 - 2019 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.NetworkMessage; +import org.traccar.Protocol; +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.Date; +import java.util.LinkedList; +import java.util.List; +import java.util.regex.Matcher; +import java.util.regex.Pattern; + +public class WialonProtocolDecoder extends BaseProtocolDecoder { + + public WialonProtocolDecoder(Protocol protocol) { + super(protocol); + } + + private static final Pattern PATTERN_ANY = new PatternBuilder() + .expression("([^#]*)?") // imei + .text("#") // start byte + .expression("([^#]+)") // type + .text("#") // separator + .expression("(.*)") // message + .compile(); + + private static final Pattern PATTERN = new PatternBuilder() + .number("(dd)(dd)(dd);") // date (ddmmyy) + .number("(dd)(dd)(dd);") // time (hhmmss) + .number("(dd)(dd.d+);") // latitude + .expression("([NS]);") + .number("(ddd)(dd.d+);") // longitude + .expression("([EW]);") + .number("(d+.?d*)?;") // speed + .number("(d+.?d*)?;") // course + .number("(?:NA|(-?d+.?d*));") // altitude + .number("(?:NA|(d+))") // satellites + .groupBegin().text(";") + .number("(?:NA|(d+.?d*));") // hdop + .number("(?:NA|(d+));") // inputs + .number("(?:NA|(d+));") // outputs + .expression("(?:NA|([^;]*));") // adc + .expression("(?:NA|([^;]*));") // ibutton + .expression("(?:NA|(.*))") // params + .groupEnd("?") + .compile(); + + private void sendResponse(Channel channel, SocketAddress remoteAddress, String type, Integer number) { + if (channel != null) { + StringBuilder response = new StringBuilder("#A"); + response.append(type); + response.append("#"); + if (number != null) { + response.append(number); + } + response.append("\r\n"); + channel.writeAndFlush(new NetworkMessage(response.toString(), remoteAddress)); + } + } + + private Position decodePosition(Channel channel, SocketAddress remoteAddress, String id, String substring) { + + DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, id); + if (deviceSession == null) { + return null; + } + + Parser parser = new Parser(PATTERN, substring); + if (!parser.matches()) { + return null; + } + + Position position = new Position(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + + position.setTime(parser.nextDateTime(Parser.DateTimeFormat.DMY_HMS)); + + position.setLatitude(parser.nextCoordinate()); + position.setLongitude(parser.nextCoordinate()); + position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble(0))); + position.setCourse(parser.nextDouble(0)); + position.setAltitude(parser.nextDouble(0)); + + if (parser.hasNext()) { + int satellites = parser.nextInt(0); + position.setValid(satellites >= 3); + position.set(Position.KEY_SATELLITES, satellites); + } + + position.set(Position.KEY_HDOP, parser.nextDouble()); + position.set(Position.KEY_INPUT, parser.next()); + position.set(Position.KEY_OUTPUT, parser.next()); + + if (parser.hasNext()) { + String[] values = parser.next().split(","); + for (int i = 0; i < values.length; i++) { + position.set(Position.PREFIX_ADC + (i + 1), values[i]); + } + } + + position.set(Position.KEY_DRIVER_UNIQUE_ID, parser.next()); + + if (parser.hasNext()) { + String[] values = parser.next().split(","); + for (String param : values) { + Matcher paramParser = Pattern.compile("(.*):[1-3]:(.*)").matcher(param); + if (paramParser.matches()) { + try { + position.set(paramParser.group(1).toLowerCase(), Double.parseDouble(paramParser.group(2))); + } catch (NumberFormatException e) { + position.set(paramParser.group(1).toLowerCase(), paramParser.group(2)); + } + } + } + } + + return position; + } + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + String sentence = (String) msg; + + Parser parser = new Parser(PATTERN_ANY, sentence); + if (!parser.matches()) { + return null; + } + + String id = parser.next(); + String type = parser.next(); + String data = parser.next(); + + switch (type) { + + case "L": + String[] values = data.split(";"); + + String imei = values[0].indexOf('.') >= 0 ? values[1] : values[0]; + DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei); + if (deviceSession != null) { + sendResponse(channel, remoteAddress, type, 1); + } + break; + + case "P": + sendResponse(channel, remoteAddress, type, null); // heartbeat + break; + + case "D": + case "SD": + Position position = decodePosition( + channel, remoteAddress, id, data); + + if (position != null) { + sendResponse(channel, remoteAddress, type, 1); + return position; + } + break; + + case "B": + String[] messages = data.split("\\|"); + List<Position> positions = new LinkedList<>(); + + for (String message : messages) { + position = decodePosition(channel, remoteAddress, id, message); + if (position != null) { + position.set(Position.KEY_ARCHIVE, true); + positions.add(position); + } + } + + sendResponse(channel, remoteAddress, type, messages.length); + if (!positions.isEmpty()) { + return positions; + } + break; + + case "M": + deviceSession = getDeviceSession(channel, remoteAddress, id); + if (deviceSession != null) { + position = new Position(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + getLastLocation(position, new Date()); + position.setValid(false); + position.set(Position.KEY_RESULT, data); + sendResponse(channel, remoteAddress, type, 1); + return position; + } + break; + + default: + break; + + } + + return null; + } + +} |