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author | Anton Tananaev <anton.tananaev@gmail.com> | 2019-03-31 22:35:39 -0700 |
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committer | Anton Tananaev <anton.tananaev@gmail.com> | 2019-03-31 22:35:39 -0700 |
commit | 59416923dcb3a756eaf532cc4259f2f6625c0762 (patch) | |
tree | 9082dae6616deac8fda432b7bfd80e4a52b6d9dc /src/main/java/org/traccar/protocol/AstraProtocolDecoder.java | |
parent | 79a129dd6327d932133d6b9a50190d3f4927bff9 (diff) | |
download | traccar-server-59416923dcb3a756eaf532cc4259f2f6625c0762.tar.gz traccar-server-59416923dcb3a756eaf532cc4259f2f6625c0762.tar.bz2 traccar-server-59416923dcb3a756eaf532cc4259f2f6625c0762.zip |
Convert project to gradle
Diffstat (limited to 'src/main/java/org/traccar/protocol/AstraProtocolDecoder.java')
-rw-r--r-- | src/main/java/org/traccar/protocol/AstraProtocolDecoder.java | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/AstraProtocolDecoder.java b/src/main/java/org/traccar/protocol/AstraProtocolDecoder.java new file mode 100644 index 000000000..e6f546b9f --- /dev/null +++ b/src/main/java/org/traccar/protocol/AstraProtocolDecoder.java @@ -0,0 +1,129 @@ +/* + * Copyright 2016 - 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.Unpooled; +import io.netty.channel.Channel; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +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.UnitsConverter; +import org.traccar.model.Position; + +import java.net.SocketAddress; +import java.nio.charset.StandardCharsets; +import java.util.LinkedList; +import java.util.List; + +public class AstraProtocolDecoder extends BaseProtocolDecoder { + + private static final Logger LOGGER = LoggerFactory.getLogger(AstraProtocolDecoder.class); + + public AstraProtocolDecoder(Protocol protocol) { + super(protocol); + } + + public static final int MSG_HEARTBEAT = 0x1A; + public static final int MSG_DATA = 0x10; + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + ByteBuf buf = (ByteBuf) msg; + + if (channel != null) { + channel.writeAndFlush(new NetworkMessage(Unpooled.wrappedBuffer(new byte[] {0x06}), remoteAddress)); + } + + buf.readUnsignedByte(); // protocol + buf.readUnsignedShort(); // length + + String imei = String.format("%08d", buf.readUnsignedInt()) + String.format("%07d", buf.readUnsignedMedium()); + DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei); + if (deviceSession == null) { + return null; + } + + List<Position> positions = new LinkedList<>(); + + while (buf.readableBytes() > 2) { + + Position position = new Position(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + + buf.readUnsignedByte(); // index + + position.setValid(true); + position.setLatitude(buf.readInt() * 0.000001); + position.setLongitude(buf.readInt() * 0.000001); + + DateBuilder dateBuilder = new DateBuilder() + .setDate(1980, 1, 6).addMillis(buf.readUnsignedInt() * 1000L); + position.setTime(dateBuilder.getDate()); + + position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedByte() * 2)); + position.setCourse(buf.readUnsignedByte() * 2); + + int reason = buf.readUnsignedMedium(); + position.set(Position.KEY_EVENT, reason); + + int status = buf.readUnsignedShort(); + position.set(Position.KEY_STATUS, status); + + position.set(Position.PREFIX_IO + 1, buf.readUnsignedByte()); + position.set(Position.PREFIX_ADC + 1, buf.readUnsignedByte()); + position.set(Position.KEY_BATTERY, buf.readUnsignedByte()); + position.set(Position.KEY_POWER, buf.readUnsignedByte()); + + buf.readUnsignedByte(); // max journey speed + buf.skipBytes(6); // accelerometer + position.set(Position.KEY_ODOMETER_TRIP, buf.readUnsignedShort()); + buf.readUnsignedShort(); // journey idle time + + position.setAltitude(buf.readUnsignedByte() * 20); + + int quality = buf.readUnsignedByte(); + position.set(Position.KEY_SATELLITES, quality & 0xf); + position.set(Position.KEY_RSSI, quality >> 4); + + buf.readUnsignedByte(); // geofence events + + if (BitUtil.check(status, 8)) { + position.set(Position.KEY_DRIVER_UNIQUE_ID, buf.readSlice(7).toString(StandardCharsets.US_ASCII)); + position.set(Position.KEY_ODOMETER, buf.readUnsignedMedium() * 1000); + position.set(Position.KEY_HOURS, UnitsConverter.msFromHours(buf.readUnsignedShort())); + } + + if (BitUtil.check(status, 6)) { + LOGGER.warn("Extension data is not supported"); + return position; + } + + positions.add(position); + + } + + return positions; + } + +} |