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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.Timer;
import java.util.TimerTask;
import org.jboss.netty.channel.*;
import org.jboss.netty.handler.codec.oneone.OneToOneDecoder;
import org.traccar.model.DataManager;
/**
* Base class for protocol decoders
*/
public abstract class GenericProtocolDecoder extends OneToOneDecoder {
/**
* Data manager
*/
private DataManager dataManager;
/**
* Set data manager
*/
public final void setDataManager(DataManager dataManager) {
this.dataManager = dataManager;
}
/**
* Return data manager
*/
public final DataManager getDataManager() {
return dataManager;
}
/**
* Reset connection delay
*/
private Integer resetDelay;
/**
* Set reset connection delay
*/
public final void setResetDelay(Integer resetDelay) {
this.resetDelay = resetDelay;
}
/**
* Default constructor
*/
public GenericProtocolDecoder() {
}
/**
* Initialize
*/
public GenericProtocolDecoder(DataManager dataManager, Integer resetDelay) {
setDataManager(dataManager);
setResetDelay(resetDelay);
}
/**
* Disconnect channel
*/
private class DisconnectTask extends TimerTask {
private Channel channel;
public DisconnectTask(Channel channel) {
this.channel = channel;
}
public void run() {
channel.disconnect();
}
}
/**
* Handle connect event
*/
@Override
public void handleUpstream(ChannelHandlerContext ctx, ChannelEvent evt) throws Exception {
super.handleUpstream(ctx, evt);
if (evt instanceof ChannelStateEvent) {
ChannelStateEvent event = (ChannelStateEvent) evt;
if (event.getState() == ChannelState.CONNECTED && event.getValue() != null && resetDelay != 0) {
new Timer().schedule(new GenericProtocolDecoder.DisconnectTask(evt.getChannel()), resetDelay);
}
}
}
}
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