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/*
* Copyright 2012 - 2023 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 com.google.inject.Injector;
import io.netty.channel.Channel;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelInboundHandler;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOutboundHandler;
import io.netty.channel.ChannelPipeline;
import io.netty.handler.timeout.IdleStateHandler;
import org.traccar.config.Config;
import org.traccar.config.Keys;
import org.traccar.handler.AcknowledgementHandler;
import org.traccar.handler.ComputedAttributesHandler;
import org.traccar.handler.CopyAttributesHandler;
import org.traccar.handler.DefaultDataHandler;
import org.traccar.handler.DistanceHandler;
import org.traccar.handler.EngineHoursHandler;
import org.traccar.handler.FilterHandler;
import org.traccar.handler.GeocoderHandler;
import org.traccar.handler.GeofenceHandler;
import org.traccar.handler.GeolocationHandler;
import org.traccar.handler.HemisphereHandler;
import org.traccar.handler.MotionHandler;
import org.traccar.handler.NetworkForwarderHandler;
import org.traccar.handler.NetworkMessageHandler;
import org.traccar.handler.OpenChannelHandler;
import org.traccar.handler.RemoteAddressHandler;
import org.traccar.handler.SpeedLimitHandler;
import org.traccar.handler.StandardLoggingHandler;
import org.traccar.handler.TimeHandler;
import org.traccar.handler.events.AlertEventHandler;
import org.traccar.handler.events.BehaviorEventHandler;
import org.traccar.handler.events.CommandResultEventHandler;
import org.traccar.handler.events.DriverEventHandler;
import org.traccar.handler.events.FuelEventHandler;
import org.traccar.handler.events.GeofenceEventHandler;
import org.traccar.handler.events.IgnitionEventHandler;
import org.traccar.handler.events.MaintenanceEventHandler;
import org.traccar.handler.events.MediaEventHandler;
import org.traccar.handler.events.MotionEventHandler;
import org.traccar.handler.events.OverspeedEventHandler;
import java.util.Map;
public abstract class BasePipelineFactory extends ChannelInitializer<Channel> {
private final Injector injector;
private final TrackerConnector connector;
private final Config config;
private final String protocol;
private final int timeout;
public BasePipelineFactory(TrackerConnector connector, Config config, String protocol) {
this.injector = Main.getInjector();
this.connector = connector;
this.config = config;
this.protocol = protocol;
int timeout = config.getInteger(Keys.PROTOCOL_TIMEOUT.withPrefix(protocol));
if (timeout == 0) {
this.timeout = config.getInteger(Keys.SERVER_TIMEOUT);
} else {
this.timeout = timeout;
}
}
protected abstract void addTransportHandlers(PipelineBuilder pipeline);
protected abstract void addProtocolHandlers(PipelineBuilder pipeline);
@SafeVarargs
private void addHandlers(ChannelPipeline pipeline, Class<? extends ChannelHandler>... handlerClasses) {
for (Class<? extends ChannelHandler> handlerClass : handlerClasses) {
if (handlerClass != null) {
pipeline.addLast(injector.getInstance(handlerClass));
}
}
}
public static <T extends ChannelHandler> T getHandler(ChannelPipeline pipeline, Class<T> clazz) {
for (Map.Entry<String, ChannelHandler> handlerEntry : pipeline) {
ChannelHandler handler = handlerEntry.getValue();
if (handler instanceof WrapperInboundHandler) {
handler = ((WrapperInboundHandler) handler).getWrappedHandler();
} else if (handler instanceof WrapperOutboundHandler) {
handler = ((WrapperOutboundHandler) handler).getWrappedHandler();
}
if (clazz.isAssignableFrom(handler.getClass())) {
return (T) handler;
}
}
return null;
}
@Override
protected void initChannel(Channel channel) {
final ChannelPipeline pipeline = channel.pipeline();
addTransportHandlers(pipeline::addLast);
if (timeout > 0 && !connector.isDatagram()) {
pipeline.addLast(new IdleStateHandler(timeout, 0, 0));
}
pipeline.addLast(new OpenChannelHandler(connector));
if (config.hasKey(Keys.SERVER_FORWARD)) {
int port = config.getInteger(Keys.PROTOCOL_PORT.withPrefix(protocol));
var handler = new NetworkForwarderHandler(port);
injector.injectMembers(handler);
pipeline.addLast(handler);
}
pipeline.addLast(new NetworkMessageHandler());
pipeline.addLast(new StandardLoggingHandler(protocol));
if (!connector.isDatagram() && !config.getBoolean(Keys.SERVER_INSTANT_ACKNOWLEDGEMENT)) {
pipeline.addLast(new AcknowledgementHandler());
}
addProtocolHandlers(handler -> {
if (handler instanceof BaseProtocolDecoder || handler instanceof BaseProtocolEncoder) {
injector.injectMembers(handler);
} else {
if (handler instanceof ChannelInboundHandler) {
handler = new WrapperInboundHandler((ChannelInboundHandler) handler);
} else {
handler = new WrapperOutboundHandler((ChannelOutboundHandler) handler);
}
}
pipeline.addLast(handler);
});
addHandlers(
pipeline,
TimeHandler.class,
GeolocationHandler.class,
HemisphereHandler.class,
DistanceHandler.class,
RemoteAddressHandler.class,
FilterHandler.class,
GeofenceHandler.class,
GeocoderHandler.class,
SpeedLimitHandler.class,
MotionHandler.class,
CopyAttributesHandler.class,
EngineHoursHandler.class,
ComputedAttributesHandler.class,
PositionForwardingHandler.class,
DefaultDataHandler.class,
MediaEventHandler.class,
CommandResultEventHandler.class,
OverspeedEventHandler.class,
BehaviorEventHandler.class,
FuelEventHandler.class,
MotionEventHandler.class,
GeofenceEventHandler.class,
AlertEventHandler.class,
IgnitionEventHandler.class,
MaintenanceEventHandler.class,
DriverEventHandler.class,
MainEventHandler.class);
}
}
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