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Diffstat (limited to 'src/org/traccar/protocol/NavisProtocolDecoder.java')
-rw-r--r--src/org/traccar/protocol/NavisProtocolDecoder.java287
1 files changed, 0 insertions, 287 deletions
diff --git a/src/org/traccar/protocol/NavisProtocolDecoder.java b/src/org/traccar/protocol/NavisProtocolDecoder.java
deleted file mode 100644
index 8d4e367ab..000000000
--- a/src/org/traccar/protocol/NavisProtocolDecoder.java
+++ /dev/null
@@ -1,287 +0,0 @@
-/*
- * Copyright 2012 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.DateBuilder;
-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.LinkedList;
-import java.util.List;
-
-public class NavisProtocolDecoder extends BaseProtocolDecoder {
-
- private String prefix;
- private long deviceUniqueId, serverId;
-
- public NavisProtocolDecoder(NavisProtocol protocol) {
- super(protocol);
- }
-
- public static final int F10 = 0x01;
- public static final int F20 = 0x02;
- public static final int F30 = 0x03;
- public static final int F40 = 0x04;
- public static final int F50 = 0x05;
- public static final int F51 = 0x15;
- public static final int F52 = 0x25;
-
- private static boolean isFormat(int type, int... types) {
- for (int i : types) {
- if (type == i) {
- return true;
- }
- }
- return false;
- }
-
- private static final class ParseResult {
- private final long id;
- private final Position position;
-
- private ParseResult(long id, Position position) {
- this.id = id;
- this.position = position;
- }
-
- public long getId() {
- return id;
- }
-
- public Position getPosition() {
- return position;
- }
- }
-
- private ParseResult parsePosition(DeviceSession deviceSession, ChannelBuffer buf) {
- Position position = new Position();
- position.setProtocol(getProtocolName());
-
- position.setDeviceId(deviceSession.getDeviceId());
-
- int format;
- if (buf.getUnsignedByte(buf.readerIndex()) == 0) {
- format = buf.readUnsignedShort();
- } else {
- format = buf.readUnsignedByte();
- }
- position.set("format", format);
-
- long index = buf.readUnsignedInt();
- position.set(Position.KEY_INDEX, index);
-
- position.set(Position.KEY_EVENT, buf.readUnsignedShort());
-
- buf.skipBytes(6); // event time
-
- short armedStatus = buf.readUnsignedByte();
- position.set(Position.KEY_ARMED, armedStatus & 0x7F);
- if (BitUtil.check(armedStatus, 7)) {
- position.set(Position.KEY_ALARM, Position.ALARM_GENERAL);
- }
- position.set(Position.KEY_STATUS, buf.readUnsignedByte());
- position.set(Position.KEY_RSSI, buf.readUnsignedByte());
-
- if (isFormat(format, F10, F20, F30)) {
- position.set(Position.KEY_OUTPUT, buf.readUnsignedShort());
- } else if (isFormat(format, F40, F50, F51, F52)) {
- position.set(Position.KEY_OUTPUT, buf.readUnsignedByte());
- }
-
- if (isFormat(format, F10, F20, F30, F40)) {
- position.set(Position.KEY_INPUT, buf.readUnsignedShort());
- } else if (isFormat(format, F50, F51, F52)) {
- position.set(Position.KEY_INPUT, buf.readUnsignedByte());
- }
-
- position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.001);
- position.set(Position.KEY_BATTERY, buf.readUnsignedShort());
-
- if (isFormat(format, F10, F20, F30)) {
- position.set(Position.PREFIX_TEMP + 1, buf.readShort());
- }
-
- if (isFormat(format, F10, F20, F50, F52)) {
- position.set(Position.PREFIX_ADC + 1, buf.readUnsignedShort());
- position.set(Position.PREFIX_ADC + 2, buf.readUnsignedShort());
- }
-
- // Impulse counters
- if (isFormat(format, F20, F50, F51, F52)) {
- buf.readUnsignedInt();
- buf.readUnsignedInt();
- }
-
- if (isFormat(format, F20, F50, F51, F52)) {
- int locationStatus = buf.readUnsignedByte();
- position.setValid(BitUtil.check(locationStatus, 1));
-
- DateBuilder dateBuilder = new DateBuilder()
- .setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte())
- .setDateReverse(buf.readUnsignedByte(), buf.readUnsignedByte() + 1, buf.readUnsignedByte());
- position.setTime(dateBuilder.getDate());
-
- position.setLatitude(buf.readFloat() / Math.PI * 180);
- position.setLongitude(buf.readFloat() / Math.PI * 180);
- position.setSpeed(UnitsConverter.knotsFromKph(buf.readFloat()));
- position.setCourse(buf.readUnsignedShort());
-
- position.set(Position.KEY_ODOMETER, buf.readFloat() * 1000);
- position.set(Position.KEY_DISTANCE, buf.readFloat());
-
- // Segment times
- buf.readUnsignedShort();
- buf.readUnsignedShort();
- }
-
- // Other
- if (isFormat(format, F51, F52)) {
- buf.readUnsignedShort();
- buf.readByte();
- buf.readUnsignedShort();
- buf.readUnsignedShort();
- buf.readByte();
- buf.readUnsignedShort();
- buf.readUnsignedShort();
- buf.readByte();
- buf.readUnsignedShort();
- }
-
- // Four temperature sensors
- if (isFormat(format, F40, F52)) {
- buf.readByte();
- buf.readByte();
- buf.readByte();
- buf.readByte();
- }
-
- return new ParseResult(index, position);
- }
-
- private Object processSingle(DeviceSession deviceSession, Channel channel, ChannelBuffer buf) {
- ParseResult result = parsePosition(deviceSession, buf);
-
- ChannelBuffer response = ChannelBuffers.dynamicBuffer(ByteOrder.LITTLE_ENDIAN, 8);
- response.writeBytes(ChannelBuffers.copiedBuffer(ByteOrder.LITTLE_ENDIAN, "*<T", StandardCharsets.US_ASCII));
- response.writeInt((int) result.getId());
- sendReply(channel, response);
-
- if (result.getPosition().getFixTime() == null) {
- return null;
- }
-
- return result.getPosition();
- }
-
- private Object processArray(DeviceSession deviceSession, Channel channel, ChannelBuffer buf) {
- List<Position> positions = new LinkedList<>();
- int count = buf.readUnsignedByte();
-
- for (int i = 0; i < count; i++) {
- Position position = parsePosition(deviceSession, buf).getPosition();
- if (position.getFixTime() != null) {
- positions.add(position);
- }
- }
-
- ChannelBuffer response = ChannelBuffers.dynamicBuffer(ByteOrder.LITTLE_ENDIAN, 8);
- response.writeBytes(ChannelBuffers.copiedBuffer(ByteOrder.LITTLE_ENDIAN, "*<A", StandardCharsets.US_ASCII));
- response.writeByte(count);
- sendReply(channel, response);
-
- if (positions.isEmpty()) {
- return null;
- }
-
- return positions;
- }
-
- private Object processHandshake(Channel channel, SocketAddress remoteAddress, ChannelBuffer buf) {
- buf.readByte(); // semicolon symbol
- if (getDeviceSession(channel, remoteAddress, buf.toString(StandardCharsets.US_ASCII)) != null) {
- sendReply(channel, ChannelBuffers.copiedBuffer(ByteOrder.LITTLE_ENDIAN, "*<S", StandardCharsets.US_ASCII));
- }
- return null;
- }
-
- private static short checksum(ChannelBuffer buf) {
- short sum = 0;
- for (int i = 0; i < buf.readableBytes(); i++) {
- sum ^= buf.getUnsignedByte(i);
- }
- return sum;
- }
-
- private void sendReply(Channel channel, ChannelBuffer data) {
- ChannelBuffer header = ChannelBuffers.directBuffer(ByteOrder.LITTLE_ENDIAN, 16);
- header.writeBytes(ChannelBuffers.copiedBuffer(ByteOrder.LITTLE_ENDIAN, prefix, StandardCharsets.US_ASCII));
- header.writeInt((int) deviceUniqueId);
- header.writeInt((int) serverId);
- header.writeShort(data.readableBytes());
- header.writeByte(checksum(data));
- header.writeByte(checksum(header));
-
- if (channel != null) {
- channel.write(ChannelBuffers.copiedBuffer(header, data));
- }
- }
-
- @Override
- protected Object decode(
- Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
-
- ChannelBuffer buf = (ChannelBuffer) msg;
-
- prefix = buf.toString(buf.readerIndex(), 4, StandardCharsets.US_ASCII);
- buf.skipBytes(prefix.length()); // prefix @NTC by default
- serverId = buf.readUnsignedInt();
- deviceUniqueId = buf.readUnsignedInt();
- int length = buf.readUnsignedShort();
- buf.skipBytes(2); // header and data XOR checksum
-
- if (length == 0) {
- return null; // keep alive message
- }
-
- String type = buf.toString(buf.readerIndex(), 3, StandardCharsets.US_ASCII);
- buf.skipBytes(type.length());
-
- if (type.equals("*>S")) {
- return processHandshake(channel, remoteAddress, buf);
- } else {
- DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
- if (deviceSession != null) {
- if (type.equals("*>T")) {
- return processSingle(deviceSession, channel, buf);
- } else if (type.equals("*>A")) {
- return processArray(deviceSession, channel, buf);
- }
- }
- }
-
- return null;
- }
-
-}
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