diff options
Diffstat (limited to 'src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java')
| -rw-r--r-- | src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java | 76 |
1 files changed, 64 insertions, 12 deletions
diff --git a/src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java b/src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java index f29fb9850..fc8a49cf5 100644 --- a/src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java +++ b/src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java @@ -1,5 +1,5 @@ /* - * Copyright 2013 - 2020 Anton Tananaev (anton@traccar.org) + * Copyright 2013 - 2022 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. @@ -20,15 +20,16 @@ import io.netty.buffer.ByteBufUtil; import io.netty.buffer.Unpooled; 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.BitBuffer; import org.traccar.helper.UnitsConverter; import org.traccar.model.Position; +import org.traccar.session.DeviceSession; import java.net.SocketAddress; import java.nio.charset.StandardCharsets; +import java.util.Calendar; import java.util.Date; import java.util.HashMap; import java.util.HashSet; @@ -36,6 +37,7 @@ import java.util.LinkedList; import java.util.List; import java.util.Map; import java.util.Set; +import java.util.TimeZone; public class GalileoProtocolDecoder extends BaseProtocolDecoder { @@ -215,7 +217,6 @@ public class GalileoProtocolDecoder extends BaseProtocolDecoder { break; case 0xea: position.set("userDataArray", ByteBufUtil.hexDump(buf.readSlice(buf.readUnsignedByte()))); - position.set("userDataArray", ByteBufUtil.hexDump(buf.readSlice(buf.readUnsignedByte()))); break; default: buf.skipBytes(getTagLength(tag)); @@ -231,7 +232,11 @@ public class GalileoProtocolDecoder extends BaseProtocolDecoder { int header = buf.readUnsignedByte(); if (header == 0x01) { - return decodePositions(channel, remoteAddress, buf); + if (buf.getUnsignedMedium(buf.readerIndex() + 2) == 0x01001c) { + return decodeIridiumPosition(channel, remoteAddress, buf); + } else { + return decodePositions(channel, remoteAddress, buf); + } } else if (header == 0x07) { return decodePhoto(channel, remoteAddress, buf); } @@ -239,10 +244,58 @@ public class GalileoProtocolDecoder extends BaseProtocolDecoder { return null; } - private Object decodePositions( - Channel channel, SocketAddress remoteAddress, ByteBuf buf) throws Exception { + private void decodeMinimalDataSet(Position position, ByteBuf buf) { + BitBuffer bits = new BitBuffer(buf.readSlice(10)); + bits.readUnsigned(1); + + Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("UTC")); + calendar.set(Calendar.DAY_OF_YEAR, 1); + calendar.set(Calendar.HOUR_OF_DAY, calendar.getActualMinimum(Calendar.HOUR_OF_DAY)); + calendar.set(Calendar.MINUTE, calendar.getActualMinimum(Calendar.MINUTE)); + calendar.set(Calendar.SECOND, calendar.getActualMinimum(Calendar.SECOND)); + calendar.set(Calendar.MILLISECOND, calendar.getActualMinimum(Calendar.MILLISECOND)); + calendar.add(Calendar.SECOND, bits.readUnsigned(25)); + position.setTime(calendar.getTime()); + + position.setValid(bits.readUnsigned(1) == 0); + position.setLongitude(360 * bits.readUnsigned(22) / 4194304.0 - 180); + position.setLatitude(360 * bits.readUnsigned(21) / 2097152.0 - 90); + if (bits.readUnsigned(1) > 0) { + position.set(Position.KEY_ALARM, Position.ALARM_GENERAL); + } + } + + private Position decodeIridiumPosition(Channel channel, SocketAddress remoteAddress, ByteBuf buf) { + + buf.readUnsignedShortLE(); // length + + buf.skipBytes(3); // identification header + buf.readUnsignedIntLE(); // index + + DeviceSession deviceSession = getDeviceSession( + channel, remoteAddress, buf.readSlice(15).toString(StandardCharsets.US_ASCII)); + if (deviceSession == null) { + return null; + } + + Position position = new Position(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + + buf.readUnsignedByte(); // session status + buf.skipBytes(4); // reserved + buf.readUnsignedIntLE(); // date and time + + buf.skipBytes(23); // coordinates block + + buf.skipBytes(3); // data tag header + decodeMinimalDataSet(position, buf); + + return position; + } + + private List<Position> decodePositions(Channel channel, SocketAddress remoteAddress, ByteBuf buf) { - int length = (buf.readUnsignedShortLE() & 0x7fff) + 3; + int endIndex = (buf.readUnsignedShortLE() & 0x7fff) + buf.readerIndex(); List<Position> positions = new LinkedList<>(); Set<Integer> tags = new HashSet<>(); @@ -251,7 +304,7 @@ public class GalileoProtocolDecoder extends BaseProtocolDecoder { DeviceSession deviceSession = null; Position position = new Position(getProtocolName()); - while (buf.readerIndex() < length) { + while (buf.readerIndex() < endIndex) { int tag = buf.readUnsignedByte(); if (tags.contains(tag)) { @@ -287,7 +340,7 @@ public class GalileoProtocolDecoder extends BaseProtocolDecoder { if (hasLocation && position.getFixTime() != null) { positions.add(position); - } else if (position.getAttributes().containsKey(Position.KEY_RESULT)) { + } else if (position.hasAttribute(Position.KEY_RESULT)) { position.setDeviceId(deviceSession.getDeviceId()); getLastLocation(position, null); positions.add(position); @@ -322,14 +375,13 @@ public class GalileoProtocolDecoder extends BaseProtocolDecoder { } else { DeviceSession deviceSession = getDeviceSession(channel, remoteAddress); - String uniqueId = Context.getIdentityManager().getById(deviceSession.getDeviceId()).getUniqueId(); position = new Position(getProtocolName()); position.setDeviceId(deviceSession.getDeviceId()); getLastLocation(position, null); - position.set(Position.KEY_IMAGE, Context.getMediaManager().writeFile(uniqueId, photo, "jpg")); + position.set(Position.KEY_IMAGE, writeMediaFile(deviceSession.getUniqueId(), photo, "jpg")); photo.release(); photo = null; |