diff options
Diffstat (limited to 'src/main/java/org/traccar/handler/protocol/Arnavi4ProtocolDecoder.java')
-rw-r--r-- | src/main/java/org/traccar/handler/protocol/Arnavi4ProtocolDecoder.java | 182 |
1 files changed, 0 insertions, 182 deletions
diff --git a/src/main/java/org/traccar/handler/protocol/Arnavi4ProtocolDecoder.java b/src/main/java/org/traccar/handler/protocol/Arnavi4ProtocolDecoder.java deleted file mode 100644 index 06abb563f..000000000 --- a/src/main/java/org/traccar/handler/protocol/Arnavi4ProtocolDecoder.java +++ /dev/null @@ -1,182 +0,0 @@ -/* - * Copyright 2017 Ivan Muratov (binakot@gmail.com) - * - * 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.Checksum; -import org.traccar.model.Position; - -import java.net.SocketAddress; -import java.nio.ByteBuffer; -import java.nio.ByteOrder; -import java.util.Date; -import java.util.LinkedList; -import java.util.List; - -public class Arnavi4ProtocolDecoder extends BaseProtocolDecoder { - - private static final byte HEADER_START_SIGN = (byte) 0xff; - private static final byte HEADER_VERSION_1 = 0x22; - private static final byte HEADER_VERSION_2 = 0x23; - - private static final byte RECORD_PING = 0x00; - private static final byte RECORD_DATA = 0x01; - private static final byte RECORD_TEXT = 0x03; - private static final byte RECORD_FILE = 0x04; - private static final byte RECORD_BINARY = 0x06; - - private static final byte TAG_LATITUDE = 3; - private static final byte TAG_LONGITUDE = 4; - private static final byte TAG_COORD_PARAMS = 5; - - public Arnavi4ProtocolDecoder(Arnavi4Protocol protocol) { - super(protocol); - } - - private void sendResponse(Channel channel, byte version, int index) { - if (channel != null) { - final ChannelBuffer response; - if (version == HEADER_VERSION_1) { - response = ChannelBuffers.dynamicBuffer(ByteOrder.LITTLE_ENDIAN, 4); - response.writeByte(0x7b); - response.writeByte(0x00); - response.writeByte((byte) index); - response.writeByte(0x7d); - } else if (version == HEADER_VERSION_2) { - response = ChannelBuffers.dynamicBuffer(ByteOrder.LITTLE_ENDIAN, 9); - response.writeByte(0x7b); - response.writeByte(0x04); - response.writeByte(0x00); - byte[] timeBytes = ByteBuffer.allocate(4).putInt((int) (System.currentTimeMillis() / 1000)).array(); - response.writeByte(Checksum.modulo256(timeBytes)); - response.writeBytes(timeBytes); - response.writeByte(0x7d); - } else { - return; // Ignore unsupported header's versions - } - channel.write(response); - } - } - - private Position decodePosition(DeviceSession deviceSession, ChannelBuffer buf, int length, Date time) { - - final Position position = new Position(); - position.setProtocol(getProtocolName()); - position.setDeviceId(deviceSession.getDeviceId()); - - position.setTime(time); - - int readBytes = 0; - while (readBytes < length) { - short tag = buf.readUnsignedByte(); - switch (tag) { - case TAG_LATITUDE: - position.setLatitude(buf.readFloat()); - position.setValid(true); - break; - - case TAG_LONGITUDE: - position.setLongitude(buf.readFloat()); - position.setValid(true); - break; - - case TAG_COORD_PARAMS: - position.setCourse(buf.readUnsignedByte() * 2); - position.setAltitude(buf.readUnsignedByte() * 10); - byte satellites = buf.readByte(); - position.set(Position.KEY_SATELLITES, satellites & 0x0F + (satellites >> 4) & 0x0F); // gps+glonass - position.setSpeed(buf.readUnsignedByte()); - break; - - default: - buf.readBytes(4); // Skip unsupported tags - break; - } - - readBytes += 5; // 1 byte tag + 4 bytes value - } - - return position; - } - - @Override - protected Object decode( - Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { - - ChannelBuffer buf = (ChannelBuffer) msg; - - byte startSign = buf.readByte(); - - if (startSign == HEADER_START_SIGN) { - - byte version = buf.readByte(); - - String imei = String.valueOf(buf.readLong()); - DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei); - - if (deviceSession != null) { - sendResponse(channel, version, 0); - } - - return null; - } - - DeviceSession deviceSession = getDeviceSession(channel, remoteAddress); - if (deviceSession == null) { - return null; - } - - List<Position> positions = new LinkedList<>(); - - int index = buf.readUnsignedByte(); - - byte recordType = buf.readByte(); - while (buf.readableBytes() > 0) { - switch (recordType) { - case RECORD_PING: - case RECORD_DATA: - case RECORD_TEXT: - case RECORD_FILE: - case RECORD_BINARY: - int length = buf.readUnsignedShort(); - Date time = new Date(buf.readUnsignedInt() * 1000); - - if (recordType == RECORD_DATA) { - positions.add(decodePosition(deviceSession, buf, length, time)); - } else { - buf.readBytes(length); // Skip other types of record - } - - buf.readUnsignedByte(); // crc - break; - - default: - return null; // Ignore unsupported types of record - } - - recordType = buf.readByte(); - } - - sendResponse(channel, HEADER_VERSION_1, index); - - return positions; - } - -} |