diff options
Diffstat (limited to 'src/org/traccar/protocol/DmtProtocolDecoder.java')
| -rw-r--r-- | src/org/traccar/protocol/DmtProtocolDecoder.java | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/src/org/traccar/protocol/DmtProtocolDecoder.java b/src/org/traccar/protocol/DmtProtocolDecoder.java deleted file mode 100644 index 39462a469..000000000 --- a/src/org/traccar/protocol/DmtProtocolDecoder.java +++ /dev/null @@ -1,189 +0,0 @@ -/* - * Copyright 2017 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.jboss.netty.buffer.ChannelBuffer; -import org.jboss.netty.buffer.ChannelBuffers; -import org.jboss.netty.channel.Channel; -import org.traccar.BaseProtocolDecoder; -import org.traccar.DeviceSession; -import org.traccar.helper.BitUtil; -import org.traccar.helper.UnitsConverter; -import org.traccar.model.Position; - -import java.net.SocketAddress; -import java.nio.ByteOrder; -import java.nio.charset.StandardCharsets; -import java.util.Date; -import java.util.LinkedList; -import java.util.List; - -public class DmtProtocolDecoder extends BaseProtocolDecoder { - - public DmtProtocolDecoder(DmtProtocol protocol) { - super(protocol); - } - - public static final int MSG_HELLO = 0x00; - public static final int MSG_HELLO_RESPONSE = 0x01; - public static final int MSG_DATA_RECORD = 0x04; - public static final int MSG_COMMIT = 0x05; - public static final int MSG_COMMIT_RESPONSE = 0x06; - - @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(); // length - - if (type == MSG_HELLO) { - - buf.readUnsignedInt(); // device serial number - - DeviceSession deviceSession = getDeviceSession( - channel, remoteAddress, buf.readBytes(15).toString(StandardCharsets.US_ASCII)); - - if (channel != null) { - ChannelBuffer response = ChannelBuffers.dynamicBuffer(ByteOrder.LITTLE_ENDIAN, 0); - response.writeByte(0x02); response.writeByte(0x55); // header - response.writeByte(MSG_HELLO_RESPONSE); - response.writeShort(4 + 4); - response.writeInt((int) (System.currentTimeMillis() / 1000)); - response.writeInt(deviceSession != null ? 0 : 1); // flags - channel.write(response); - } - - } else if (type == MSG_COMMIT) { - - if (channel != null) { - ChannelBuffer response = ChannelBuffers.dynamicBuffer(ByteOrder.LITTLE_ENDIAN, 0); - response.writeByte(0x02); response.writeByte(0x55); // header - response.writeByte(MSG_COMMIT_RESPONSE); - response.writeShort(1); - response.writeByte(1); // flags (success) - channel.write(response); - } - - } else if (type == MSG_DATA_RECORD) { - - DeviceSession deviceSession = getDeviceSession(channel, remoteAddress); - if (deviceSession == null) { - return null; - } - - List<Position> positions = new LinkedList<>(); - - while (buf.readable()) { - - int recordEnd = buf.readerIndex() + buf.readUnsignedShort(); - - Position position = new Position(); - position.setProtocol(getProtocolName()); - position.setDeviceId(deviceSession.getDeviceId()); - - position.set(Position.KEY_INDEX, buf.readUnsignedInt()); - - position.setDeviceTime(new Date(1356998400000L + buf.readUnsignedInt() * 1000)); // since 1 Jan 2013 - - position.set(Position.KEY_EVENT, buf.readUnsignedByte()); - - while (buf.readerIndex() < recordEnd) { - - int fieldId = buf.readUnsignedByte(); - int fieldLength = buf.readUnsignedByte(); - int fieldEnd = buf.readerIndex() + (fieldLength == 255 ? buf.readUnsignedShort() : fieldLength); - - if (fieldId == 0) { - - position.setFixTime(new Date(1356998400000L + buf.readUnsignedInt() * 1000)); - position.setLatitude(buf.readInt() * 0.0000001); - position.setLongitude(buf.readInt() * 0.0000001); - position.setAltitude(buf.readShort()); - position.setSpeed(UnitsConverter.knotsFromCps(buf.readUnsignedShort())); - - buf.readUnsignedByte(); // speed accuracy - - position.setCourse(buf.readUnsignedByte() * 2); - - position.set(Position.KEY_PDOP, buf.readUnsignedByte() * 0.1); - - position.setAccuracy(buf.readUnsignedByte()); - position.setValid(buf.readUnsignedByte() != 0); - - } else if (fieldId == 2) { - - int input = buf.readInt(); - int output = buf.readUnsignedShort(); - int status = buf.readUnsignedShort(); - - position.set(Position.KEY_IGNITION, BitUtil.check(input, 0)); - - position.set(Position.KEY_INPUT, input); - position.set(Position.KEY_OUTPUT, output); - position.set(Position.KEY_STATUS, status); - - } else if (fieldId == 6) { - - while (buf.readerIndex() < fieldEnd) { - switch (buf.readUnsignedByte()) { - case 1: - position.set(Position.KEY_BATTERY, buf.readUnsignedShort() * 0.001); - break; - case 2: - position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.01); - break; - case 3: - position.set(Position.KEY_DEVICE_TEMP, buf.readShort() * 0.01); - break; - case 4: - position.set(Position.KEY_RSSI, buf.readUnsignedShort()); - break; - case 5: - position.set("solarPower", buf.readUnsignedShort() * 0.001); - break; - default: - break; - } - } - - } - - buf.readerIndex(fieldEnd); - - } - - if (position.getFixTime() == null) { - getLastLocation(position, position.getDeviceTime()); - } - - positions.add(position); - - } - - return positions; - - } - - return null; - } - -} |