diff options
Diffstat (limited to 'src/main/java/org/traccar/protocol/UuxProtocolDecoder.java')
-rw-r--r-- | src/main/java/org/traccar/protocol/UuxProtocolDecoder.java | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/UuxProtocolDecoder.java b/src/main/java/org/traccar/protocol/UuxProtocolDecoder.java new file mode 100644 index 000000000..cb8656545 --- /dev/null +++ b/src/main/java/org/traccar/protocol/UuxProtocolDecoder.java @@ -0,0 +1,95 @@ +/* + * Copyright 2021 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.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.model.Position; + +import java.net.SocketAddress; +import java.nio.charset.StandardCharsets; +import java.util.Calendar; + +public class UuxProtocolDecoder extends BaseProtocolDecoder { + + public UuxProtocolDecoder(Protocol protocol) { + super(protocol); + } + + public static final int MSG_IMMOBILIZER = 0x9E; + public static final int MSG_ACK = 0xD0; + public static final int MSG_NACK = 0xF0; + + private void sendResponse(Channel channel, int productCode, int protocolVersion, int type) { + if (channel != null && BitUtil.check(protocolVersion, 7)) { + ByteBuf response = Unpooled.buffer(); + response.writeShort(productCode); + response.writeByte(BitUtil.to(protocolVersion, 7)); + response.writeByte(1); // length + response.writeByte(type); + channel.writeAndFlush(new NetworkMessage(response, channel.remoteAddress())); + } + } + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + ByteBuf buf = (ByteBuf) msg; + + int productCode = buf.readUnsignedShort(); + int protocolVersion = buf.readUnsignedByte(); + buf.readUnsignedByte(); // length + int type = buf.readUnsignedByte(); + + String vehicleId = buf.readCharSequence(10, StandardCharsets.US_ASCII).toString(); + DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, vehicleId); + if (deviceSession == null) { + sendResponse(channel, productCode, protocolVersion, MSG_NACK); + return null; + } + + if (type == MSG_IMMOBILIZER) { + + Position position = new Position(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + + DateBuilder dateBuilder = new DateBuilder() + .setDate(Calendar.getInstance().get(Calendar.YEAR), buf.readUnsignedByte(), buf.readUnsignedByte()) + .setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte()); + + getLastLocation(position, dateBuilder.getDate()); + + position.set("companyId", buf.readCharSequence(6, StandardCharsets.US_ASCII).toString()); + position.set("tripId", buf.readUnsignedShort()); + + return position; + + } + + sendResponse(channel, productCode, protocolVersion, MSG_ACK); + + return null; + } + +} |