From c3aeb5442d41688c9509c286c066cf3efebb52d4 Mon Sep 17 00:00:00 2001 From: Anton Tananaev Date: Fri, 11 Oct 2019 06:59:15 +0900 Subject: Implement Pacific Track protocol --- .../org/traccar/protocol/PacificTrackProtocol.java | 33 +++++++ .../protocol/PacificTrackProtocolDecoder.java | 104 +++++++++++++++++++++ 2 files changed, 137 insertions(+) create mode 100644 src/main/java/org/traccar/protocol/PacificTrackProtocol.java create mode 100644 src/main/java/org/traccar/protocol/PacificTrackProtocolDecoder.java (limited to 'src/main') diff --git a/src/main/java/org/traccar/protocol/PacificTrackProtocol.java b/src/main/java/org/traccar/protocol/PacificTrackProtocol.java new file mode 100644 index 000000000..08991ab64 --- /dev/null +++ b/src/main/java/org/traccar/protocol/PacificTrackProtocol.java @@ -0,0 +1,33 @@ +/* + * Copyright 2019 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 org.traccar.BaseProtocol; +import org.traccar.PipelineBuilder; +import org.traccar.TrackerServer; + +public class PacificTrackProtocol extends BaseProtocol { + + public PacificTrackProtocol() { + addServer(new TrackerServer(true, getName()) { + @Override + protected void addProtocolHandlers(PipelineBuilder pipeline) { + pipeline.addLast(new PacificTrackProtocolDecoder(PacificTrackProtocol.this)); + } + }); + } + +} diff --git a/src/main/java/org/traccar/protocol/PacificTrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/PacificTrackProtocolDecoder.java new file mode 100644 index 000000000..199348c54 --- /dev/null +++ b/src/main/java/org/traccar/protocol/PacificTrackProtocolDecoder.java @@ -0,0 +1,104 @@ +/* + * Copyright 2019 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.ByteBufUtil; +import io.netty.channel.Channel; +import org.traccar.BaseProtocolDecoder; +import org.traccar.DeviceSession; +import org.traccar.Protocol; +import org.traccar.helper.BitUtil; +import org.traccar.helper.DateBuilder; +import org.traccar.helper.UnitsConverter; +import org.traccar.model.Position; + +import java.net.SocketAddress; + +public class PacificTrackProtocolDecoder extends BaseProtocolDecoder { + + public PacificTrackProtocolDecoder(Protocol protocol) { + super(protocol); + } + + public static int readBitExt(ByteBuf buf) { + int result = 0; + while (buf.isReadable()) { + int b = buf.readUnsignedByte(); + result <<= 7; + result += BitUtil.to(b, 7); + if (BitUtil.check(b, 7)) { + break; + } + } + return result; + } + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + ByteBuf buf = (ByteBuf) msg; + + buf.readByte(); // frame start + readBitExt(buf); // frame control + readBitExt(buf); // frame length + + DeviceSession deviceSession = null; + Position position = new Position(getProtocolName()); + + while (buf.isReadable()) { + + int segmentId = readBitExt(buf); + int segmentLength = readBitExt(buf); + + switch (segmentId) { + case 0x01: + position.set(Position.KEY_EVENT, readBitExt(buf)); + break; + case 0x10: + position.setValid(BitUtil.check(buf.readUnsignedByte(), 4)); + int date = buf.readUnsignedByte(); + DateBuilder dateBuilder = new DateBuilder() + .setDate(2000 + BitUtil.from(date, 4), BitUtil.to(date, 4), buf.readUnsignedByte()) + .setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte()); + position.setTime(dateBuilder.getDate()); + position.setLatitude(buf.readUnsignedInt() / 1000000.0 - 90.0); + position.setLongitude(buf.readUnsignedInt() / 1000000.0 - 180.0); + int speedAndCourse = buf.readUnsignedMedium(); + position.setCourse(BitUtil.from(speedAndCourse, 12)); + position.setSpeed(UnitsConverter.knotsFromKph(BitUtil.to(speedAndCourse, 12))); + position.set(Position.KEY_INDEX, buf.readUnsignedShort()); + break; + case 0x100: + String imei = ByteBufUtil.hexDump(buf.readSlice(8)).substring(1); + deviceSession = getDeviceSession(channel, remoteAddress, imei); + break; + default: + buf.skipBytes(segmentLength); + break; + } + } + + if (deviceSession != null) { + position.setDeviceId(deviceSession.getDeviceId()); + return position; + } else { + return null; + } + } + +} -- cgit v1.2.3