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/*
* Copyright 2012 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 java.util.List;
import org.jboss.netty.channel.*;
import org.jboss.netty.handler.timeout.IdleStateAwareChannelHandler;
import org.jboss.netty.handler.timeout.IdleStateEvent;
import org.traccar.helper.Log;
import org.traccar.database.DataManager;
import org.traccar.model.Position;
/**
* Tracker message handler
*/
@ChannelHandler.Sharable
public class TrackerEventHandler extends IdleStateAwareChannelHandler {
/**
* Data manager
*/
private DataManager dataManager;
TrackerEventHandler(DataManager newDataManager) {
dataManager = newDataManager;
}
private Long processSinglePosition(Position position) {
if (position == null) {
Log.info("processSinglePosition null message");
} else {
StringBuilder s = new StringBuilder();
s.append("device: ").append(position.getDeviceId()).append(", ");
s.append("time: ").append(position.getTime()).append(", ");
s.append("lat: ").append(position.getLatitude()).append(", ");
s.append("lon: ").append(position.getLongitude());
Log.info(s.toString());
}
// Write position to database
Long id = null;
try {
id = dataManager.addPosition(position);
} catch (Exception error) {
Log.warning(error);
}
return id;
}
@Override
public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) {
Long id = null;
Position lastPostition = null;
if (e.getMessage() instanceof Position) {
id = processSinglePosition((Position) e.getMessage());
lastPostition = (Position) e.getMessage();
} else if (e.getMessage() instanceof List) {
List<Position> positions = (List<Position>) e.getMessage();
for (Position position : positions) {
id = processSinglePosition(position);
lastPostition = position;
}
}
if (id != null && lastPostition != null) {
try {
dataManager.updateLatestPosition(lastPostition, id);
} catch (Exception error) {
Log.warning(error);
}
}
}
@Override
public void channelDisconnected(ChannelHandlerContext ctx, ChannelStateEvent e) {
Log.info("Closing connection by disconnect");
e.getChannel().close();
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) {
Log.info("Closing connection by exception");
e.getChannel().close();
}
@Override
public void channelIdle(ChannelHandlerContext ctx, IdleStateEvent e) {
Log.info("Closing connection by timeout");
e.getChannel().close();
}
}
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