<commit_before>/*
 * Copyright 2015 - 2016 <NAME> (<EMAIL>)
 *
 * 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.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 CastelProtocolDecoder extends BaseProtocolDecoder {

    public CastelProtocolDecoder(CastelProtocol protocol) {
        super(protocol);
    }

    private static final short MSG_SC_LOGIN = 0x1001;
    private static final short MSG_SC_LOGIN_RESPONSE = (short) 0x9001;
    private static final short MSG_SC_LOGOUT = 0x1002;
    private static final short MSG_SC_HEARTBEAT = 0x1003;
    private static final short MSG_SC_HEARTBEAT_RESPONSE = (short) 0x9003;
    private static final short MSG_SC_GPS = 0x4001;
    private static final short MSG_SC_ALARM = 0x4007;
    private static final short MSG_SC_GPS_SLEEP = 0x4009;
    private static final short MSG_SC_AGPS_REQUEST = 0x5101;
    private static final short MSG_SC_CURRENT_LOCATION = (short) 0xB001;

    private static final short MSG_CC_LOGIN = 0x4001;
    private static final short MSG_CC_LOGIN_RESPONSE = (short) 0x8001;
    private static final short MSG_CC_HEARTBEAT = 0x4206;
    private static final short MSG_CC_HEARTBEAT_RESPONSE = (short) 0x8206;

    private Position readPosition(DeviceSession deviceSession, ChannelBuffer buf) {

        Position position = new Position();
        position.setProtocol(getProtocolName());
        position.setDeviceId(deviceSession.getDeviceId());

        DateBuilder dateBuilder = new DateBuilder()
                .setDateReverse(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte())
                .setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte());
        position.setTime(dateBuilder.getDate());

        double lat = buf.readUnsignedInt() / 3600000.0;
        double lon = buf.readUnsignedInt() / 3600000.0;
        position.setSpeed(UnitsConverter.knotsFromCps(buf.readUnsignedShort()));
        position.setCourse(buf.readUnsignedShort() % 360);

        int flags = buf.readUnsignedByte();
        if ((flags & 0x02) == 0) {
            lat = -lat;
        }
        if ((flags & 0x01) == 0) {
            lon = -lon;
        }
        position.setLatitude(lat);
        position.setLongitude(lon);
        position.setValid((flags & 0x0C) > 0);
        position.set(Position.KEY_SATELLITES, flags >> 4);

        return position;
    }

    private void sendResponse(
            Channel channel, SocketAddress remoteAddress,
            int version, ChannelBuffer id, short type, ChannelBuffer content) {

        if (channel != null) {
            int length = 2 + 2 + 1 + id.readableBytes() + 2 + 2 + 2;
            if (content != null) {
                length += content.readableBytes();
            }<commit_msg>Fix Sinocastel course decoding<commit_after>/*
 * Copyright 2015 - 2016 <NAME> (<EMAIL>)
 *
 * 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.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 CastelProtocolDecoder extends BaseProtocolDecoder {

    public CastelProtocolDecoder(CastelProtocol protocol) {
        super(protocol);
    }

    private static final short MSG_SC_LOGIN = 0x1001;
    private static final short MSG_SC_LOGIN_RESPONSE = (short) 0x9001;
    private static final short MSG_SC_LOGOUT = 0x1002;
    private static final short MSG_SC_HEARTBEAT = 0x1003;
    private static final short MSG_SC_HEARTBEAT_RESPONSE = (short) 0x9003;
    private static final short MSG_SC_GPS = 0x4001;
    private static final short MSG_SC_ALARM = 0x4007;
    private static final short MSG_SC_GPS_SLEEP = 0x4009;
    private static final short MSG_SC_AGPS_REQUEST = 0x5101;
    private static final short MSG_SC_CURRENT_LOCATION = (short) 0xB001;

    private static final short MSG_CC_LOGIN = 0x4001;
    private static final short MSG_CC_LOGIN_RESPONSE = (short) 0x8001;
    private static final short MSG_CC_HEARTBEAT = 0x4206;
    private static final short MSG_CC_HEARTBEAT_RESPONSE = (short) 0x8206;

    private Position readPosition(DeviceSession deviceSession, ChannelBuffer buf) {

        Position position = new Position();
        position.setProtocol(getProtocolName());
        position.setDeviceId(deviceSession.getDeviceId());

        DateBuilder dateBuilder = new DateBuilder()
                .setDateReverse(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte())
                .setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte());
        position.setTime(dateBuilder.getDate());

        double lat = buf.readUnsignedInt() / 3600000.0;
        double lon = buf.readUnsignedInt() / 3600000.0;
        position.setSpeed(UnitsConverter.knotsFromCps(buf.readUnsignedShort()));
        position.setCourse(buf.readUnsignedShort() * 0.1);

        int flags = buf.readUnsignedByte();
        if ((flags & 0x02) == 0) {
            lat = -lat;
        }
        if ((flags & 0x01) == 0) {
            lon = -lon;
        }
        position.setLatitude(lat);
        position.setLongitude(lon);
        position.setValid((flags & 0x0C) > 0);
        position.set(Position.KEY_SATELLITES, flags >> 4);

        return position;
    }

    private void sendResponse(
            Channel channel, SocketAddress remoteAddress,
            int version, ChannelBuffer id, short type, ChannelBuffer content) {

        if (channel != null) {
            int length = 2 + 2 + 1 + id.readableBytes() + 2 + 2 + 2;
            if (content != null) {
                length += content.readableBytes();
            }
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{'dir': 'git-commits-cleaned', 'id': '2975218', 'n_tokens_mistral': 2428, 'n_tokens_neox': 2221, 'n_words': 609}