/*
* Copyright (c) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 David Berkman
*
* This file is part of the SmallMind Code Project.
*
* The SmallMind Code Project is free software, you can redistribute
* it and/or modify it under either, at your discretion...
*
* 1) The terms of GNU Affero General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* ...or...
*
* 2) The terms of the Apache License, Version 2.0.
*
* The SmallMind Code Project 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 or Apache License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* and the Apache License along with the SmallMind Code Project. If not, see
* <http://www.gnu.org/licenses/> or <http://www.apache.org/licenses/LICENSE-2.0>.
*
* Additional permission under the GNU Affero GPL version 3 section 7
* ------------------------------------------------------------------
* If you modify this Program, or any covered work, by linking or
* combining it with other code, such other code is not for that reason
* alone subject to any of the requirements of the GNU Affero GPL
* version 3.
*/
package org.smallmind.phalanx.wire;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.atomic.AtomicReference;
import org.smallmind.nutsnbolts.time.Duration;
public class AsynchronousTransmissionCallback extends TransmissionCallback {
private final CountDownLatch resultLatch = new CountDownLatch(1);
private final AtomicReference<Duration> timeoutDurationRef = new AtomicReference<>();
private final AtomicReference<ResultSignal> resultSignalRef = new AtomicReference<>();
private String serviceName;
private String functionName;
public AsynchronousTransmissionCallback (String serviceName, String functionName) {
this.serviceName = serviceName;
this.functionName = functionName;
}
@Override
public void destroy (Duration timeoutDuration) {
timeoutDurationRef.set(timeoutDuration);
resultLatch.countDown();
}
@Override
public Object getResult (SignalCodec signalCodec)
throws Throwable {
ResultSignal resultSignal;
resultLatch.await();
if ((resultSignal = resultSignalRef.get()) == null) {
Duration timeoutDuration = timeoutDurationRef.get();
throw new TransportTimeoutException("The timeout(%s) milliseconds was exceeded while waiting for a response(%s.%s)", (timeoutDuration == null) ? "unknown" : String.valueOf(timeoutDuration.toMilliseconds()), serviceName, functionName);
}
handleError(signalCodec, resultSignal);
return signalCodec.extractObject(resultSignal.getResult(), SignatureUtility.nativeDecode(resultSignal.getNativeType()));
}
public void setResultSignal (ResultSignal resultSignal) {
resultSignalRef.set(resultSignal);
resultLatch.countDown();
}
}