private void decodeEventData(int event, ChannelBuffer buf) { switch (event) { case 2: case 40: buf.readUnsignedByte(); break; case 9: buf.readUnsignedMedium(); break; case 31: case 32: buf.readUnsignedShort(); break; case 38: buf.skipBytes(4 * 9); break; case 113: buf.readUnsignedInt(); buf.readUnsignedByte(); break; case 121: case 142: buf.readLong(); break; case 130: buf.readUnsignedInt(); // incorrect break; default: break; } }
@Override protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { ChannelBuffer buf = (ChannelBuffer) msg; buf.skipBytes(4); // system code int type = buf.readUnsignedByte(); long deviceUniqueId = buf.readUnsignedInt(); if (type != MSG_CLIENT_SERIAL) { buf.readUnsignedShort(); // communication control } byte packetNumber = buf.readByte(); // Send reply sendReply(channel, deviceUniqueId, packetNumber); // Parse location if (type == MSG_CLIENT_STATUS) { Position position = new Position(); position.setProtocol(getProtocolName()); // Device identifier if (!identify(String.valueOf(deviceUniqueId), channel)) { return null; } position.setDeviceId(getDeviceId()); buf.readUnsignedByte(); // hardware version buf.readUnsignedByte(); // software version buf.readUnsignedByte(); // protocol version // Status position.set(Event.KEY_STATUS, buf.getUnsignedByte(buf.readerIndex()) & 0x0f); int operator = (buf.readUnsignedByte() & 0xf0) << 4; operator += buf.readUnsignedByte(); buf.readUnsignedByte(); // reason data buf.readUnsignedByte(); // reason buf.readUnsignedByte(); // mode buf.readUnsignedInt(); // IO operator <<= 8; operator += buf.readUnsignedByte(); position.set("operator", operator); buf.readUnsignedInt(); // ADC buf.readUnsignedMedium(); // Odometer buf.skipBytes(6); // multi-purpose data buf.readUnsignedShort(); // gps fix buf.readUnsignedByte(); // location status buf.readUnsignedByte(); // mode 1 buf.readUnsignedByte(); // mode 2 position.setValid(buf.readUnsignedByte() >= 3); // satellites // Location data position.setLongitude(buf.readInt() / Math.PI * 180 / 100000000); position.setLatitude(buf.readInt() / Math.PI * 180 / 100000000.0); position.setAltitude(buf.readInt() * 0.01); position.setSpeed(UnitsConverter.knotsFromMps(buf.readInt() * 0.01)); position.setCourse(buf.readUnsignedShort() / Math.PI * 180.0 / 1000.0); // Time Calendar time = Calendar.getInstance(TimeZone.getTimeZone("UTC")); time.clear(); time.set(Calendar.SECOND, buf.readUnsignedByte()); time.set(Calendar.MINUTE, buf.readUnsignedByte()); time.set(Calendar.HOUR_OF_DAY, buf.readUnsignedByte()); time.set(Calendar.DAY_OF_MONTH, buf.readUnsignedByte()); time.set(Calendar.MONTH, buf.readUnsignedByte() - 1); time.set(Calendar.YEAR, buf.readUnsignedShort()); position.setTime(time.getTime()); return position; } return null; }
@Override protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { ChannelBuffer buf = (ChannelBuffer) msg; buf.skipBytes(2); // header int type = buf.readUnsignedByte(); buf.readUnsignedShort(); // size if (type == MSG_ON_DEMAND || type == MSG_POSITION_UPLOAD || type == MSG_POSITION_REUPLOAD || type == MSG_ALARM || type == MSG_REPLY || type == MSG_PERIPHERAL) { // Create new position Position position = new Position(); position.setProtocol(getProtocolName()); // Device identification if (!identify(readSerialNumber(buf), channel)) { return null; } position.setDeviceId(getDeviceId()); // Date and time Calendar time = Calendar.getInstance(TimeZone.getTimeZone("UTC")); time.clear(); time.set(Calendar.YEAR, 2000 + ChannelBufferTools.readHexInteger(buf, 2)); time.set(Calendar.MONTH, ChannelBufferTools.readHexInteger(buf, 2) - 1); time.set(Calendar.DAY_OF_MONTH, ChannelBufferTools.readHexInteger(buf, 2)); time.set(Calendar.HOUR_OF_DAY, ChannelBufferTools.readHexInteger(buf, 2)); time.set(Calendar.MINUTE, ChannelBufferTools.readHexInteger(buf, 2)); time.set(Calendar.SECOND, ChannelBufferTools.readHexInteger(buf, 2)); position.setTime(time.getTime()); // Location position.setLatitude(ChannelBufferTools.readCoordinate(buf)); position.setLongitude(ChannelBufferTools.readCoordinate(buf)); position.setSpeed(UnitsConverter.knotsFromKph(ChannelBufferTools.readHexInteger(buf, 4))); position.setCourse(ChannelBufferTools.readHexInteger(buf, 4)); // Flags int flags = buf.readUnsignedByte(); position.setValid((flags & 0x80) != 0); if (type == MSG_ALARM) { buf.skipBytes(2); } else { // Odometer position.set(Event.KEY_ODOMETER, buf.readUnsignedMedium()); // Status buf.skipBytes(4); // Other buf.skipBytes(8); } // TODO: parse extra data return position; } else if (type == MSG_LOGIN && channel != null) { buf.skipBytes(4); // serial number buf.readByte(); // reserved ChannelBuffer response = ChannelBuffers.dynamicBuffer(); response.writeByte(0x29); response.writeByte(0x29); // header response.writeByte(MSG_CONFIRMATION); response.writeShort(5); // size response.writeByte(buf.readUnsignedByte()); response.writeByte(type); response.writeByte(0); // reserved response.writeByte(Crc.xorChecksum(response.toByteBuffer())); response.writeByte(0x0D); // ending channel.write(response); } return null; }
@Override protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { ChannelBuffer buf = (ChannelBuffer) msg; buf.readUnsignedByte(); // marker int version = buf.readUnsignedByte(); String imei; if ((version & 0x80) != 0) { imei = String.valueOf((buf.readUnsignedInt() << (3 * 8)) | buf.readUnsignedMedium()); } else { imei = String.valueOf(imeiFromUnitId(buf.readUnsignedMedium())); } buf.readUnsignedShort(); // length int selector = DEFAULT_SELECTOR; if ((version & 0x40) != 0) { selector = buf.readUnsignedMedium(); } Position position = new Position(); position.setProtocol(getProtocolName()); if (!identify(imei, channel, remoteAddress)) { return null; } position.setDeviceId(getDeviceId()); int event = buf.readUnsignedByte(); position.set(Event.KEY_EVENT, event); position.set("event-info", buf.readUnsignedByte()); if ((selector & 0x0008) != 0) { position.setValid((buf.readUnsignedByte() & 0x40) != 0); } else { return null; // no location data } if ((selector & 0x0004) != 0) { buf.skipBytes(4); // snapshot time } if ((selector & 0x0008) != 0) { position.setTime(new Date(buf.readUnsignedInt() * 1000)); position.setLatitude(buf.readInt() / 1000000.0); position.setLongitude(buf.readInt() / 1000000.0); position.set(Event.KEY_SATELLITES, buf.readUnsignedByte()); } if ((selector & 0x0010) != 0) { position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedByte())); buf.readUnsignedByte(); // maximum speed position.setCourse(buf.readUnsignedByte() * 2.0); } if ((selector & 0x0040) != 0) { position.set(Event.KEY_INPUT, buf.readUnsignedByte()); } if ((selector & 0x0020) != 0) { position.set(Event.PREFIX_ADC + 1, buf.readUnsignedShort()); position.set(Event.PREFIX_ADC + 2, buf.readUnsignedShort()); position.set(Event.PREFIX_ADC + 3, buf.readUnsignedShort()); position.set(Event.PREFIX_ADC + 4, buf.readUnsignedShort()); } if ((selector & 0x8000) != 0) { position.set(Event.KEY_POWER, buf.readUnsignedShort() / 1000.0); position.set(Event.KEY_BATTERY, buf.readUnsignedShort()); } // Pulse rate 1 if ((selector & 0x10000) != 0) { buf.readUnsignedShort(); buf.readUnsignedInt(); } // Pulse rate 2 if ((selector & 0x20000) != 0) { buf.readUnsignedShort(); buf.readUnsignedInt(); } if ((selector & 0x0080) != 0) { position.set("trip1", buf.readUnsignedInt()); } if ((selector & 0x0100) != 0) { position.set("trip2", buf.readUnsignedInt()); } if ((selector & 0x0040) != 0) { position.set(Event.KEY_OUTPUT, buf.readUnsignedByte()); } if ((selector & 0x0200) != 0) { position.set( Event.KEY_RFID, (((long) buf.readUnsignedShort()) << 32) + buf.readUnsignedInt()); } if ((selector & 0x0400) != 0) { buf.readUnsignedByte(); // Keypad } if ((selector & 0x0800) != 0) { position.setAltitude(buf.readShort()); } if ((selector & 0x2000) != 0) { buf.readUnsignedShort(); // snapshot counter } if ((selector & 0x4000) != 0) { buf.skipBytes(8); // state flags } if ((selector & 0x80000) != 0) { buf.skipBytes(11); // cell info } if ((selector & 0x1000) != 0) { decodeEventData(event, buf); } if (Context.getConfig().getBoolean(getProtocolName() + ".can") && buf.readable() && (selector & 0x1000) != 0 && event == EVENT_DATA) { decodeCanData(buf, position); } return position; }
private void decodeCanData(ChannelBuffer buf, Position position) { buf.readUnsignedMedium(); // packet identifier buf.readUnsignedByte(); // version int count = buf.readUnsignedByte(); buf.readUnsignedByte(); // batch count buf.readUnsignedShort(); // selector bit buf.readUnsignedInt(); // timestamp buf.skipBytes(8); ArrayList<ChannelBuffer> values = new ArrayList<>(count); for (int i = 0; i < count; i++) { values.add(buf.readBytes(8)); } for (int i = 0; i < count; i++) { ChannelBuffer value = values.get(i); switch (buf.readInt()) { case 0x20D: position.set(Event.KEY_RPM, ChannelBuffers.swapShort(value.readShort())); position.set("diesel-temperature", ChannelBuffers.swapShort(value.readShort()) * 0.1); position.set("battery-voltage", ChannelBuffers.swapShort(value.readShort()) * 0.01); position.set("supply-air-temp-dep1", ChannelBuffers.swapShort(value.readShort()) * 0.1); break; case 0x30D: position.set("active-alarm", ChannelBuffers.hexDump(value)); break; case 0x40C: position.set("air-temp-dep1", ChannelBuffers.swapShort(value.readShort()) * 0.1); position.set("air-temp-dep2", ChannelBuffers.swapShort(value.readShort()) * 0.1); break; case 0x40D: position.set("cold-unit-state", ChannelBuffers.hexDump(value)); break; case 0x50C: position.set("defrost-temp-dep1", ChannelBuffers.swapShort(value.readShort()) * 0.1); position.set("defrost-temp-dep2", ChannelBuffers.swapShort(value.readShort()) * 0.1); break; case 0x50D: position.set("condenser-pressure", ChannelBuffers.swapShort(value.readShort()) * 0.1); position.set("suction-pressure", ChannelBuffers.swapShort(value.readShort()) * 0.1); break; case 0x58C: value.readByte(); value.readShort(); // index switch (value.readByte()) { case 0x01: position.set("setpoint-zone1", ChannelBuffers.swapInt(value.readInt()) * 0.1); break; case 0x02: position.set("setpoint-zone2", ChannelBuffers.swapInt(value.readInt()) * 0.1); break; case 0x05: position.set("unit-type", ChannelBuffers.swapInt(value.readInt())); break; case 0x13: position.set("diesel-hours", ChannelBuffers.swapInt(value.readInt()) / 60 / 60); break; case 0x14: position.set("electric-hours", ChannelBuffers.swapInt(value.readInt()) / 60 / 60); break; case 0x17: position.set("service-indicator", ChannelBuffers.swapInt(value.readInt())); break; case 0x18: position.set("software-version", ChannelBuffers.swapInt(value.readInt()) * 0.01); break; default: break; } break; default: Log.warning(new UnsupportedOperationException()); break; } } }
@Override protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { ChannelBuffer buf = (ChannelBuffer) msg; buf.readUnsignedByte(); // protocol buf.readUnsignedShort(); // length int index = buf.readUnsignedByte() >> 3; if (channel != null) { ChannelBuffer response = ChannelBuffers.copiedBuffer("^" + index, Charset.defaultCharset()); channel.write(response, remoteAddress); } String id = String.valueOf(buf.readUnsignedInt()); if (!identify(id, channel, remoteAddress)) { return null; } List<Position> positions = new LinkedList<>(); while (buf.readableBytes() > 2) { Position position = new Position(); position.setProtocol(getProtocolName()); position.setDeviceId(getDeviceId()); int end = buf.readerIndex() + buf.readUnsignedByte(); position.setTime(new Date(buf.readUnsignedInt() * 1000)); int flags = buf.readUnsignedByte(); position.set(Event.KEY_SATELLITES, BitUtil.range(flags, 2)); position.setValid(BitUtil.range(flags, 0, 2) > 0); // Latitude double lat = buf.readUnsignedMedium(); lat = lat * -180 / 16777216 + 90; position.setLatitude(lat); // Longitude double lon = buf.readUnsignedMedium(); lon = lon * 360 / 16777216 - 180; position.setLongitude(lon); // Status flags = buf.readUnsignedByte(); position.set(Event.KEY_IGNITION, BitUtil.check(flags, 0)); position.set(Event.KEY_GSM, BitUtil.range(flags, 2, 3)); position.setCourse((BitUtil.range(flags, 5) * 45 + 180) % 360); // Speed int speed = buf.readUnsignedByte(); if (speed < 250) { position.setSpeed(UnitsConverter.knotsFromKph(speed)); } while (buf.readerIndex() < end) { int type = buf.readUnsignedByte(); int length = buf.readUnsignedByte(); if (length == 255) { length += buf.readUnsignedByte(); } switch (type) { case 2: position.set(Event.KEY_ODOMETER, buf.readUnsignedMedium()); break; case 5: position.set(Event.KEY_INPUT, buf.readUnsignedByte()); break; case 6: { int n = buf.readUnsignedByte() >> 4; if (n < 2) { position.set(Event.PREFIX_ADC + n, readSwappedFloat(buf)); } else { position.set("di" + (n - 2), readSwappedFloat(buf)); } } break; case 7: { int alarm = buf.readUnsignedByte(); buf.readUnsignedByte(); if (BitUtil.check(alarm, 5)) { position.set(Event.KEY_ALARM, BitUtil.range(alarm, 0, 4)); } } break; case 8: position.set("antihijack", buf.readUnsignedByte()); break; case 9: position.set("authorized", ChannelBufferTools.readHexString(buf, 16)); break; case 10: position.set("unauthorized", ChannelBufferTools.readHexString(buf, 16)); break; case 24: { Set<Integer> temps = new LinkedHashSet<>(); int temp = buf.readUnsignedByte(); for (int i = 3; i >= 0; i--) { int n = (temp >> (2 * i)) & 0x03; if (!temps.contains(n)) { temps.add(n); } } for (int n : temps) { position.set(Event.PREFIX_TEMP + n, buf.readUnsignedByte()); } } break; case 28: position.set("weight", buf.readUnsignedShort()); buf.readUnsignedByte(); break; case 90: position.set(Event.KEY_POWER, readSwappedFloat(buf)); break; case 101: position.set(Event.KEY_OBD_SPEED, buf.readUnsignedByte()); break; case 102: position.set(Event.KEY_RPM, buf.readUnsignedByte() * 50); break; case 107: { int fuel = buf.readUnsignedShort(); switch (fuel >> 14) { case 1: position.set(Event.KEY_FUEL, (fuel & 0x3fff) * 0.4 + "%"); break; case 2: position.set(Event.KEY_FUEL, (fuel & 0x3fff) * 0.5 + " l"); break; case 3: position.set(Event.KEY_FUEL, (fuel & 0x3fff) * -0.5 + " l"); break; } } break; case 108: position.set(Event.KEY_OBD_ODOMETER, buf.readUnsignedInt() * 5); break; case 150: position.set("door", buf.readUnsignedByte()); break; default: buf.skipBytes(length); break; } } positions.add(position); } return positions; }