diff options
Diffstat (limited to 'src/main/java/org/traccar/protocol/UproProtocolDecoder.java')
| -rw-r--r-- | src/main/java/org/traccar/protocol/UproProtocolDecoder.java | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/UproProtocolDecoder.java b/src/main/java/org/traccar/protocol/UproProtocolDecoder.java new file mode 100644 index 000000000..dc7a9200d --- /dev/null +++ b/src/main/java/org/traccar/protocol/UproProtocolDecoder.java @@ -0,0 +1,212 @@ +/* + * Copyright 2012 - 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.buffer.ByteBuf; +import io.netty.buffer.ByteBufUtil; +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.BitUtil; +import org.traccar.helper.DateBuilder; +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 java.net.SocketAddress; +import java.nio.charset.StandardCharsets; +import java.util.regex.Pattern; + +public class UproProtocolDecoder extends BaseProtocolDecoder { + + public UproProtocolDecoder(Protocol protocol) { + super(protocol); + } + + private static final Pattern PATTERN_HEADER = new PatternBuilder() + .text("*") + .expression("(..20)") // head + .expression("([01])") // ack + .number("(d+),") // device id + .expression("(.)") // type + .expression("(.)") // subtype + .any() + .compile(); + + private static final Pattern PATTERN_LOCATION = new PatternBuilder() + .number("(dd)(dd)(dd)") // time (hhmmss) + .number("(dd)(dd)(dddd)") // latitude + .number("(ddd)(dd)(dddd)") // longitude + .number("(d)") // flags + .number("(dd)") // speed + .number("(dd)") // course + .number("(dd)(dd)(dd)") // date (ddmmyy) + .compile(); + + private void decodeLocation(Position position, String data) { + Parser parser = new Parser(PATTERN_LOCATION, data); + if (parser.matches()) { + + DateBuilder dateBuilder = new DateBuilder() + .setTime(parser.nextInt(0), parser.nextInt(0), parser.nextInt(0)); + + position.setValid(true); + position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_MIN_MIN)); + position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_MIN_MIN)); + + int flags = parser.nextInt(0); + position.setValid(BitUtil.check(flags, 0)); + if (!BitUtil.check(flags, 1)) { + position.setLatitude(-position.getLatitude()); + } + if (!BitUtil.check(flags, 2)) { + position.setLongitude(-position.getLongitude()); + } + + position.setSpeed(parser.nextInt(0) * 2); + position.setCourse(parser.nextInt(0) * 10); + + dateBuilder.setDateReverse(parser.nextInt(0), parser.nextInt(0), parser.nextInt(0)); + position.setTime(dateBuilder.getDate()); + + } + } + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + ByteBuf buf = (ByteBuf) msg; + + if (buf.getByte(buf.readerIndex()) != '*') { + return null; + } + + int headerIndex = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) '&'); + if (headerIndex < 0) { + headerIndex = buf.writerIndex(); + } + String header = buf.readSlice(headerIndex - buf.readerIndex()).toString(StandardCharsets.US_ASCII); + + Parser parser = new Parser(PATTERN_HEADER, header); + if (!parser.matches()) { + return null; + } + + String head = parser.next(); + boolean reply = parser.next().equals("1"); + + DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next()); + if (deviceSession == null) { + return null; + } + + Position position = new Position(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + + String type = parser.next(); + String subtype = parser.next(); + + if (reply && channel != null) { + channel.writeAndFlush(new NetworkMessage("*" + head + "Y" + type + subtype + "#", remoteAddress)); + } + + while (buf.isReadable()) { + + buf.readByte(); // skip delimiter + + byte dataType = buf.readByte(); + + int delimiterIndex = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) '&'); + if (delimiterIndex < 0) { + delimiterIndex = buf.writerIndex(); + } + + ByteBuf data = buf.readSlice(delimiterIndex - buf.readerIndex()); + + switch (dataType) { + case 'A': + decodeLocation(position, data.toString(StandardCharsets.US_ASCII)); + break; + case 'B': + position.set(Position.KEY_STATUS, data.toString(StandardCharsets.US_ASCII)); + break; + case 'C': + long odometer = 0; + while (data.isReadable()) { + odometer <<= 4; + odometer += data.readByte() - (byte) '0'; + } + position.set(Position.KEY_ODOMETER, odometer * 2 * 1852 / 3600); + break; + case 'F': + position.setSpeed( + Integer.parseInt(data.readSlice(4).toString(StandardCharsets.US_ASCII)) * 0.1); + break; + case 'K': + position.set("statusExtended", data.toString(StandardCharsets.US_ASCII)); + break; + case 'P': + if (data.readableBytes() >= 16) { + position.setNetwork(new Network(CellTower.from( + Integer.parseInt(data.readSlice(4).toString(StandardCharsets.US_ASCII)), + Integer.parseInt(data.readSlice(4).toString(StandardCharsets.US_ASCII)), + Integer.parseInt(data.readSlice(4).toString(StandardCharsets.US_ASCII), 16), + Integer.parseInt(data.readSlice(4).toString(StandardCharsets.US_ASCII), 16)))); + } + break; + case 'Q': + position.set("obdPid", ByteBufUtil.hexDump(data)); + break; + case 'R': + if (head.startsWith("HQ")) { + position.set(Position.KEY_RSSI, + Integer.parseInt(data.readSlice(2).toString(StandardCharsets.US_ASCII))); + position.set(Position.KEY_SATELLITES, + Integer.parseInt(data.readSlice(2).toString(StandardCharsets.US_ASCII))); + } else { + position.set("odbTravel", ByteBufUtil.hexDump(data)); + } + break; + case 'S': + position.set("obdTraffic", ByteBufUtil.hexDump(data)); + break; + case 'T': + position.set(Position.KEY_BATTERY_LEVEL, + Integer.parseInt(data.readSlice(2).toString(StandardCharsets.US_ASCII))); + break; + case 'V': + position.set(Position.KEY_POWER, + Integer.parseInt(data.readSlice(4).toString(StandardCharsets.US_ASCII)) * 0.1); + break; + default: + break; + } + + } + + if (position.getLatitude() != 0 && position.getLongitude() != 0) { + return position; + } + + return null; + } + +} |