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author | Yuriy Piskarev <yuriy.piskarev@gmail.com> | 2023-08-24 14:16:17 +0300 |
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committer | GitHub <noreply@github.com> | 2023-08-24 14:16:17 +0300 |
commit | ae406c7b49a72de24d81fd74386d9638342c90ee (patch) | |
tree | 6fbcf557375b98e926c78af9c757e62c79d72a1b /src/main/java/org/traccar/protocol/VltProtocolDecoder.java | |
parent | 56ff656c908b19feb2fa3dcffa48cc3bcdfe9b3b (diff) | |
parent | 9aeedc90da24848ff97227d6f281eb4d1e1506ef (diff) | |
download | trackermap-server-ae406c7b49a72de24d81fd74386d9638342c90ee.tar.gz trackermap-server-ae406c7b49a72de24d81fd74386d9638342c90ee.tar.bz2 trackermap-server-ae406c7b49a72de24d81fd74386d9638342c90ee.zip |
Merge branch 'traccar:master' into master
Diffstat (limited to 'src/main/java/org/traccar/protocol/VltProtocolDecoder.java')
-rw-r--r-- | src/main/java/org/traccar/protocol/VltProtocolDecoder.java | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/VltProtocolDecoder.java b/src/main/java/org/traccar/protocol/VltProtocolDecoder.java new file mode 100644 index 000000000..01c0563f5 --- /dev/null +++ b/src/main/java/org/traccar/protocol/VltProtocolDecoder.java @@ -0,0 +1,139 @@ +/* + * Copyright 2023 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 io.netty.handler.codec.http.FullHttpRequest; +import io.netty.handler.codec.http.HttpResponseStatus; +import io.netty.handler.codec.http.QueryStringDecoder; +import org.traccar.BaseHttpProtocolDecoder; +import org.traccar.Protocol; +import org.traccar.helper.Parser; +import org.traccar.helper.PatternBuilder; +import org.traccar.model.CellTower; +import org.traccar.model.Network; +import org.traccar.model.Position; +import org.traccar.session.DeviceSession; + +import java.net.SocketAddress; +import java.nio.charset.StandardCharsets; +import java.util.LinkedList; +import java.util.List; +import java.util.regex.Pattern; + +public class VltProtocolDecoder extends BaseHttpProtocolDecoder { + + public VltProtocolDecoder(Protocol protocol) { + super(protocol); + } + + private static final Pattern PATTERN = new PatternBuilder() + .number("(dd)") // alert id + .expression("([HL])") // history + .number("([01])") // validity + .number("(dd)(dd)(dd)") // date (ddmmyy) + .number("(dd)(dd)(dd)") // time (hhmmss) + .number("(d{3}.d{6})([NS])") // latitude + .number("(d{3}.d{6})([EW])") // longitude + .number("(d{3})") // mcc + .expression("(x*[0-9]+)") // mnc + .number("(x{4})") // lac + .number("(d{9})") // cid + .number("(d{3}.d{2})") // speed + .number("(d{3}.d{2})") // course + .number("(d{2})") // satellites + .number("(d{2})") // hdop + .number("(d{2})") // rssi + .number("([01])") // ignition + .number("([01])") // charging + .expression("([HMS])") // vehicle mode + .compile(); + + private Position decodePosition(DeviceSession deviceSession, String sentence) { + + Parser parser = new Parser(PATTERN, sentence); + if (!parser.matches()) { + return null; + } + + Position position = new Position(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + + position.set(Position.KEY_EVENT, parser.nextInt()); + position.set(Position.KEY_ARCHIVE, parser.next().equals("H") ? true : null); + + position.setValid(parser.nextInt() > 0); + position.setTime(parser.nextDateTime(Parser.DateTimeFormat.DMY_HMS)); + position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM)); + position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM)); + + int mcc = parser.nextInt(); + int mnc = Integer.parseInt(parser.next().replaceAll("x", "")); + int lac = parser.nextHexInt(); + int cid = parser.nextInt(); + + position.setSpeed(parser.nextDouble()); + position.setCourse(parser.nextDouble()); + + position.set(Position.KEY_SATELLITES, parser.nextInt()); + position.set(Position.KEY_HDOP, parser.nextInt()); + + position.setNetwork(new Network(CellTower.from(mcc, mnc, lac, cid, parser.nextInt()))); + + position.set(Position.KEY_IGNITION, parser.nextInt() > 0); + position.set(Position.KEY_CHARGE, parser.nextInt() > 0); + position.set(Position.KEY_MOTION, parser.next().equals("M")); + + return position; + } + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + FullHttpRequest request = (FullHttpRequest) msg; + QueryStringDecoder decoder = new QueryStringDecoder( + request.content().toString(StandardCharsets.US_ASCII), false); + String sentence = decoder.parameters().get("vltdata").iterator().next(); + + int index = 0; + String type = sentence.substring(index, index += 3); + String imei = sentence.substring(index, index += 15); + + DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei); + if (deviceSession == null) { + sendResponse(channel, HttpResponseStatus.BAD_REQUEST); + return null; + } + + sendResponse(channel, HttpResponseStatus.OK); + + switch (type) { + case "NRM": + return decodePosition(deviceSession, sentence.substring(3 + 15)); + case "BTH": + List<Position> positions = new LinkedList<>(); + int count = Integer.parseInt(sentence.substring(index, index += 3)); + for (int i = 0; i < count; i++) { + positions.add(decodePosition(deviceSession, sentence.substring(index, index += 78))); + } + return positions; + default: + return null; + } + } + +} |