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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/OrionProtocolDecoder.java | |
parent | 79a129dd6327d932133d6b9a50190d3f4927bff9 (diff) | |
download | trackermap-server-59416923dcb3a756eaf532cc4259f2f6625c0762.tar.gz trackermap-server-59416923dcb3a756eaf532cc4259f2f6625c0762.tar.bz2 trackermap-server-59416923dcb3a756eaf532cc4259f2f6625c0762.zip |
Convert project to gradle
Diffstat (limited to 'src/main/java/org/traccar/protocol/OrionProtocolDecoder.java')
-rw-r--r-- | src/main/java/org/traccar/protocol/OrionProtocolDecoder.java | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/OrionProtocolDecoder.java b/src/main/java/org/traccar/protocol/OrionProtocolDecoder.java new file mode 100644 index 000000000..af819989e --- /dev/null +++ b/src/main/java/org/traccar/protocol/OrionProtocolDecoder.java @@ -0,0 +1,115 @@ +/* + * Copyright 2014 - 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.DateBuilder; +import org.traccar.model.Position; + +import java.net.SocketAddress; +import java.util.LinkedList; +import java.util.List; + +public class OrionProtocolDecoder extends BaseProtocolDecoder { + + public OrionProtocolDecoder(Protocol protocol) { + super(protocol); + } + + public static final int MSG_USERLOG = 0; + public static final int MSG_SYSLOG = 3; + + private static void sendResponse(Channel channel, ByteBuf buf) { + if (channel != null) { + ByteBuf response = Unpooled.buffer(4); + response.writeByte('*'); + response.writeShort(buf.getUnsignedShort(buf.writerIndex() - 2)); + response.writeByte(buf.getUnsignedByte(buf.writerIndex() - 3)); + channel.writeAndFlush(new NetworkMessage(response, channel.remoteAddress())); + } + } + + private static double convertCoordinate(int raw) { + int degrees = raw / 1000000; + double minutes = (raw % 1000000) / 10000.0; + return degrees + minutes / 60; + } + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + ByteBuf buf = (ByteBuf) msg; + + buf.skipBytes(2); // header + int type = buf.readUnsignedByte() & 0x0f; + + if (type == MSG_USERLOG) { + + int header = buf.readUnsignedByte(); + + if ((header & 0x40) != 0) { + sendResponse(channel, buf); + } + + DeviceSession deviceSession = getDeviceSession( + channel, remoteAddress, String.valueOf(buf.readUnsignedInt())); + if (deviceSession == null) { + return null; + } + + List<Position> positions = new LinkedList<>(); + + for (int i = 0; i < (header & 0x0f); i++) { + + Position position = new Position(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + + position.set(Position.KEY_EVENT, buf.readUnsignedByte()); + buf.readUnsignedByte(); // length + position.set(Position.KEY_FLAGS, buf.readUnsignedShortLE()); + + position.setLatitude(convertCoordinate(buf.readIntLE())); + position.setLongitude(convertCoordinate(buf.readIntLE())); + position.setAltitude(buf.readShortLE() / 10.0); + position.setCourse(buf.readUnsignedShortLE()); + position.setSpeed(buf.readUnsignedShortLE() * 0.0539957); + + DateBuilder dateBuilder = new DateBuilder() + .setDate(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte()) + .setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte()); + position.setTime(dateBuilder.getDate()); + + int satellites = buf.readUnsignedByte(); + position.setValid(satellites >= 3); + position.set(Position.KEY_SATELLITES, satellites); + + positions.add(position); + } + + return positions; + } + + return null; + } + +} |