From 59416923dcb3a756eaf532cc4259f2f6625c0762 Mon Sep 17 00:00:00 2001 From: Anton Tananaev Date: Sun, 31 Mar 2019 22:35:39 -0700 Subject: Convert project to gradle --- .../org/traccar/protocol/GatorProtocolDecoder.java | 133 +++++++++++++++++++++ 1 file changed, 133 insertions(+) create mode 100644 src/main/java/org/traccar/protocol/GatorProtocolDecoder.java (limited to 'src/main/java/org/traccar/protocol/GatorProtocolDecoder.java') diff --git a/src/main/java/org/traccar/protocol/GatorProtocolDecoder.java b/src/main/java/org/traccar/protocol/GatorProtocolDecoder.java new file mode 100644 index 000000000..31500bae6 --- /dev/null +++ b/src/main/java/org/traccar/protocol/GatorProtocolDecoder.java @@ -0,0 +1,133 @@ +/* + * Copyright 2013 - 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.traccar.BaseProtocolDecoder; +import org.traccar.DeviceSession; +import org.traccar.NetworkMessage; +import org.traccar.Protocol; +import org.traccar.helper.BcdUtil; +import org.traccar.helper.DateBuilder; +import org.traccar.helper.UnitsConverter; +import org.traccar.model.Position; + +import java.net.SocketAddress; + +public class GatorProtocolDecoder extends BaseProtocolDecoder { + + public GatorProtocolDecoder(Protocol protocol) { + super(protocol); + } + + public static final int MSG_HEARTBEAT = 0x21; + public static final int MSG_POSITION_DATA = 0x80; + public static final int MSG_ROLLCALL_RESPONSE = 0x81; + public static final int MSG_ALARM_DATA = 0x82; + public static final int MSG_TERMINAL_STATUS = 0x83; + public static final int MSG_MESSAGE = 0x84; + public static final int MSG_TERMINAL_ANSWER = 0x85; + public static final int MSG_BLIND_AREA = 0x8E; + public static final int MSG_PICTURE_FRAME = 0x54; + public static final int MSG_CAMERA_RESPONSE = 0x56; + public static final int MSG_PICTURE_DATA = 0x57; + + public static String decodeId(int b1, int b2, int b3, int b4) { + + int d1 = 30 + ((b1 >> 7) << 3) + ((b2 >> 7) << 2) + ((b3 >> 7) << 1) + (b4 >> 7); + int d2 = b1 & 0x7f; + int d3 = b2 & 0x7f; + int d4 = b3 & 0x7f; + int d5 = b4 & 0x7f; + + return String.format("%02d%02d%02d%02d%02d", d1, d2, d3, d4, d5); + } + + private void sendResponse(Channel channel, SocketAddress remoteAddress, byte calibration) { + if (channel != null) { + ByteBuf response = Unpooled.buffer(); + response.writeByte(0x24); response.writeByte(0x24); // header + response.writeByte(MSG_HEARTBEAT); // size + response.writeShort(5); + response.writeByte(calibration); + response.writeByte(0); // main order + response.writeByte(0); // slave order + response.writeByte(1); // calibration + response.writeByte(0x0D); + channel.writeAndFlush(new NetworkMessage(response, remoteAddress)); + } + } + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + ByteBuf buf = (ByteBuf) msg; + + buf.skipBytes(2); // header + int type = buf.readUnsignedByte(); + buf.readUnsignedShort(); // length + + String id = decodeId( + buf.readUnsignedByte(), buf.readUnsignedByte(), + buf.readUnsignedByte(), buf.readUnsignedByte()); + + sendResponse(channel, remoteAddress, buf.getByte(buf.writerIndex() - 2)); + + if (type == MSG_POSITION_DATA || type == MSG_ROLLCALL_RESPONSE + || type == MSG_ALARM_DATA || type == MSG_BLIND_AREA) { + + Position position = new Position(getProtocolName()); + + DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, "1" + id, id); + if (deviceSession == null) { + return null; + } + position.setDeviceId(deviceSession.getDeviceId()); + + DateBuilder dateBuilder = new DateBuilder() + .setYear(BcdUtil.readInteger(buf, 2)) + .setMonth(BcdUtil.readInteger(buf, 2)) + .setDay(BcdUtil.readInteger(buf, 2)) + .setHour(BcdUtil.readInteger(buf, 2)) + .setMinute(BcdUtil.readInteger(buf, 2)) + .setSecond(BcdUtil.readInteger(buf, 2)); + position.setTime(dateBuilder.getDate()); + + position.setLatitude(BcdUtil.readCoordinate(buf)); + position.setLongitude(BcdUtil.readCoordinate(buf)); + position.setSpeed(UnitsConverter.knotsFromKph(BcdUtil.readInteger(buf, 4))); + position.setCourse(BcdUtil.readInteger(buf, 4)); + + int flags = buf.readUnsignedByte(); + position.setValid((flags & 0x80) != 0); + position.set(Position.KEY_SATELLITES, flags & 0x0f); + + position.set(Position.KEY_STATUS, buf.readUnsignedByte()); + position.set("key", buf.readUnsignedByte()); + position.set("oil", buf.readUnsignedShort() / 10.0); + position.set(Position.KEY_POWER, buf.readUnsignedByte() + buf.readUnsignedByte() * 0.01); + position.set(Position.KEY_ODOMETER, buf.readUnsignedInt()); + + return position; + } + + return null; + } + +} -- cgit v1.2.3