/**
* Copyright (C) 2008 Doug Judd (Zvents, Inc.)
*
* This file is part of Hypertable.
*
* Hypertable is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or any later version.
*
* Hypertable is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
package org.hypertable.DfsBroker.hadoop;
import java.net.ProtocolException;
import java.util.logging.Logger;
import org.hypertable.AsyncComm.ApplicationHandler;
import org.hypertable.AsyncComm.ApplicationQueue;
import org.hypertable.AsyncComm.Comm;
import org.hypertable.AsyncComm.Event;
import org.hypertable.AsyncComm.ResponseCallback;
import org.hypertable.Common.Error;
public class RequestHandlerShutdown extends ApplicationHandler {
static final Logger log = Logger.getLogger(
"org.hypertable.DfsBroker.hadoop");
public RequestHandlerShutdown(Comm comm, ApplicationQueue appQueue,
Event event) {
super(event);
mComm = comm;
mAppQueue = appQueue;
}
public void run() {
ResponseCallback cb = new ResponseCallback(mComm, mEvent);
try {
if (mEvent.payload.remaining() < 2)
throw new ProtocolException("Truncated message");
short flags = mEvent.payload.getShort();
if ((flags & Protocol.SHUTDOWN_FLAG_IMMEDIATE) != 0) {
log.info("Immediate shutdown.");
System.exit(0);
}
mAppQueue.Shutdown();
cb.response_ok();
wait(2000);
System.exit(0);
}
catch (ProtocolException e) {
int error = cb.error(Error.PROTOCOL_ERROR, e.getMessage());
log.severe("Protocol error (SHUTDOWN) - " + e.getMessage());
if (error != Error.OK)
log.severe("Problem sending (SHUTDOWN) error back to client - "
+ Error.GetText(error));
}
catch (InterruptedException e) {
}
}
private Comm mComm;
private ApplicationQueue mAppQueue;
}