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/*
* Copyright 2012 - 2022 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;
import io.netty.channel.Channel;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.channel.socket.DatagramChannel;
import io.netty.handler.codec.http.HttpRequestDecoder;
import io.netty.handler.timeout.IdleStateEvent;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.traccar.config.Config;
import org.traccar.config.Keys;
import org.traccar.database.StatisticsManager;
import org.traccar.handler.AcknowledgementHandler;
import org.traccar.helper.DateUtil;
import org.traccar.helper.NetworkUtil;
import org.traccar.helper.model.PositionUtil;
import org.traccar.model.Device;
import org.traccar.model.Position;
import org.traccar.session.ConnectionManager;
import org.traccar.session.cache.CacheManager;
import org.traccar.storage.Storage;
import org.traccar.storage.StorageException;
import org.traccar.storage.query.Columns;
import org.traccar.storage.query.Condition;
import org.traccar.storage.query.Request;
import jakarta.inject.Inject;
import jakarta.inject.Singleton;
import java.util.Arrays;
import java.util.HashSet;
import java.util.LinkedHashSet;
import java.util.Set;
@Singleton
@ChannelHandler.Sharable
public class MainEventHandler extends ChannelInboundHandlerAdapter {
private static final Logger LOGGER = LoggerFactory.getLogger(MainEventHandler.class);
private final Set<String> connectionlessProtocols = new HashSet<>();
private final Set<String> logAttributes = new LinkedHashSet<>();
private final CacheManager cacheManager;
private final Storage storage;
private final ConnectionManager connectionManager;
private final StatisticsManager statisticsManager;
@Inject
public MainEventHandler(
Config config, CacheManager cacheManager, Storage storage, ConnectionManager connectionManager,
StatisticsManager statisticsManager) {
this.cacheManager = cacheManager;
this.storage = storage;
this.connectionManager = connectionManager;
this.statisticsManager = statisticsManager;
String connectionlessProtocolList = config.getString(Keys.STATUS_IGNORE_OFFLINE);
if (connectionlessProtocolList != null) {
connectionlessProtocols.addAll(Arrays.asList(connectionlessProtocolList.split("[, ]")));
}
logAttributes.addAll(Arrays.asList(config.getString(Keys.LOGGER_ATTRIBUTES).split("[, ]")));
}
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) {
if (msg instanceof Position) {
Position position = (Position) msg;
Device device = cacheManager.getObject(Device.class, position.getDeviceId());
try {
if (PositionUtil.isLatest(cacheManager, position)) {
Device updatedDevice = new Device();
updatedDevice.setId(position.getDeviceId());
updatedDevice.setPositionId(position.getId());
storage.updateObject(updatedDevice, new Request(
new Columns.Include("positionId"),
new Condition.Equals("id", updatedDevice.getId())));
cacheManager.updatePosition(position);
connectionManager.updatePosition(true, position);
}
} catch (StorageException error) {
LOGGER.warn("Failed to update device", error);
}
StringBuilder builder = new StringBuilder();
builder.append("[").append(NetworkUtil.session(ctx.channel())).append("] ");
builder.append("id: ").append(device.getUniqueId());
for (String attribute : logAttributes) {
switch (attribute) {
case "time":
builder.append(", time: ").append(DateUtil.formatDate(position.getFixTime(), false));
break;
case "position":
builder.append(", lat: ").append(String.format("%.5f", position.getLatitude()));
builder.append(", lon: ").append(String.format("%.5f", position.getLongitude()));
break;
case "speed":
if (position.getSpeed() > 0) {
builder.append(", speed: ").append(String.format("%.1f", position.getSpeed()));
}
break;
case "course":
builder.append(", course: ").append(String.format("%.1f", position.getCourse()));
break;
case "accuracy":
if (position.getAccuracy() > 0) {
builder.append(", accuracy: ").append(String.format("%.1f", position.getAccuracy()));
}
break;
case "outdated":
if (position.getOutdated()) {
builder.append(", outdated");
}
break;
case "invalid":
if (!position.getValid()) {
builder.append(", invalid");
}
break;
default:
Object value = position.getAttributes().get(attribute);
if (value != null) {
builder.append(", ").append(attribute).append(": ").append(value);
}
break;
}
}
LOGGER.info(builder.toString());
statisticsManager.registerMessageStored(position.getDeviceId(), position.getProtocol());
ctx.writeAndFlush(new AcknowledgementHandler.EventHandled(position));
}
}
@Override
public void channelActive(ChannelHandlerContext ctx) {
if (!(ctx.channel() instanceof DatagramChannel)) {
LOGGER.info("[{}] connected", NetworkUtil.session(ctx.channel()));
}
}
@Override
public void channelInactive(ChannelHandlerContext ctx) {
LOGGER.info("[{}] disconnected", NetworkUtil.session(ctx.channel()));
closeChannel(ctx.channel());
boolean supportsOffline = BasePipelineFactory.getHandler(ctx.pipeline(), HttpRequestDecoder.class) == null
&& !connectionlessProtocols.contains(ctx.pipeline().get(BaseProtocolDecoder.class).getProtocolName());
connectionManager.deviceDisconnected(ctx.channel(), supportsOffline);
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
while (cause.getCause() != null && cause.getCause() != cause) {
cause = cause.getCause();
}
LOGGER.info("[{}] error", NetworkUtil.session(ctx.channel()), cause);
closeChannel(ctx.channel());
}
@Override
public void userEventTriggered(ChannelHandlerContext ctx, Object evt) {
if (evt instanceof IdleStateEvent) {
LOGGER.info("[{}] timed out", NetworkUtil.session(ctx.channel()));
closeChannel(ctx.channel());
}
}
private void closeChannel(Channel channel) {
if (!(channel instanceof DatagramChannel)) {
channel.close();
}
}
}
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