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/*
* Copyright 2012 - 2016 Anton Tananaev (anton.tananaev@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;
import org.jboss.netty.buffer.ChannelBuffer;
import org.jboss.netty.buffer.ChannelBuffers;
import org.jboss.netty.channel.ChannelEvent;
import org.jboss.netty.channel.ChannelHandler;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.channel.ChannelPipeline;
import org.jboss.netty.channel.ChannelPipelineFactory;
import org.jboss.netty.channel.ChannelStateEvent;
import org.jboss.netty.channel.Channels;
import org.jboss.netty.channel.DownstreamMessageEvent;
import org.jboss.netty.channel.MessageEvent;
import org.jboss.netty.channel.SimpleChannelHandler;
import org.jboss.netty.handler.logging.LoggingHandler;
import org.jboss.netty.handler.timeout.IdleStateHandler;
import org.traccar.helper.Log;
import java.net.InetSocketAddress;
public abstract class BasePipelineFactory implements ChannelPipelineFactory {
private final TrackerServer server;
private int timeout;
private FilterHandler filterHandler;
private DistanceHandler distanceHandler;
private ReverseGeocoderHandler reverseGeocoderHandler;
private LocationProviderHandler locationProviderHandler;
private HemisphereHandler hemisphereHandler;
private static final class OpenChannelHandler extends SimpleChannelHandler {
private final TrackerServer server;
private OpenChannelHandler(TrackerServer server) {
this.server = server;
}
@Override
public void channelOpen(ChannelHandlerContext ctx, ChannelStateEvent e) {
server.getChannelGroup().add(e.getChannel());
}
}
private static class StandardLoggingHandler extends LoggingHandler {
@Override
public void log(ChannelEvent e) {
if (e instanceof MessageEvent) {
MessageEvent event = (MessageEvent) e;
StringBuilder msg = new StringBuilder();
msg.append("[").append(String.format("%08X", e.getChannel().getId())).append(": ");
msg.append(((InetSocketAddress) e.getChannel().getLocalAddress()).getPort());
if (e instanceof DownstreamMessageEvent) {
msg.append(" > ");
} else {
msg.append(" < ");
}
if (event.getRemoteAddress() != null) {
msg.append(((InetSocketAddress) event.getRemoteAddress()).getHostString());
} else {
msg.append("null");
}
msg.append("]");
if (event.getMessage() instanceof ChannelBuffer) {
msg.append(" HEX: ");
msg.append(ChannelBuffers.hexDump((ChannelBuffer) event.getMessage()));
}
Log.debug(msg.toString());
}
}
}
public BasePipelineFactory(TrackerServer server, String protocol) {
this.server = server;
timeout = Context.getConfig().getInteger(protocol + ".timeout", 0);
if (timeout == 0) {
timeout = Context.getConfig().getInteger(protocol + ".resetDelay", 0); // temporary
}
if (Context.getConfig().getBoolean("filter.enable")) {
filterHandler = new FilterHandler();
}
if (Context.getReverseGeocoder() != null) {
reverseGeocoderHandler = new ReverseGeocoderHandler(
Context.getReverseGeocoder(), Context.getConfig().getBoolean("geocoder.processInvalidPositions"));
}
if (Context.getLocationProvider() != null) {
locationProviderHandler = new LocationProviderHandler(
Context.getLocationProvider(), Context.getConfig().getBoolean("location.processInvalidPositions"));
}
if (Context.getConfig().getBoolean("distance.enable")) {
distanceHandler = new DistanceHandler();
}
if (Context.getConfig().hasKey("location.latitudeHemisphere")
|| Context.getConfig().hasKey("location.longitudeHemisphere")) {
hemisphereHandler = new HemisphereHandler();
}
}
protected abstract void addSpecificHandlers(ChannelPipeline pipeline);
@Override
public ChannelPipeline getPipeline() {
ChannelPipeline pipeline = Channels.pipeline();
if (timeout != 0) {
pipeline.addLast("idleHandler", new IdleStateHandler(GlobalTimer.getTimer(), timeout, 0, 0));
}
pipeline.addLast("openHandler", new OpenChannelHandler(server));
if (Context.isLoggerEnabled()) {
pipeline.addLast("logger", new StandardLoggingHandler());
}
addSpecificHandlers(pipeline);
if (hemisphereHandler != null) {
pipeline.addLast("hemisphere", hemisphereHandler);
}
if (distanceHandler != null) {
pipeline.addLast("distance", distanceHandler);
}
if (reverseGeocoderHandler != null) {
pipeline.addLast("geocoder", reverseGeocoderHandler);
}
if (locationProviderHandler != null) {
pipeline.addLast("location", locationProviderHandler);
}
pipeline.addLast("remoteAddress", new RemoteAddressHandler());
addDynamicHandlers(pipeline);
if (filterHandler != null) {
pipeline.addLast("filter", filterHandler);
}
if (Context.getDataManager() != null) {
pipeline.addLast("dataHandler", new DefaultDataHandler());
}
if (Context.getConfig().getBoolean("forward.enable")) {
pipeline.addLast("webHandler", new WebDataHandler(Context.getConfig().getString("forward.url")));
}
pipeline.addLast("mainHandler", new MainEventHandler());
return pipeline;
}
private void addDynamicHandlers(ChannelPipeline pipeline) {
if (Context.getConfig().hasKey("extra.handlers")) {
String[] handlers = Context.getConfig().getString("extra.handlers").split(",");
for (int i = 0; i < handlers.length; i++) {
try {
pipeline.addLast("extraHandler." + i, (ChannelHandler) Class.forName(handlers[i]).newInstance());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException error) {
Log.warning(error);
}
}
}
}
}
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