org.pitest.util.CommunicationThread Maven / Gradle / Ivy
/*
* Copyright 2011 Henry Coles
*
* 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.pitest.util;
import java.io.IOException;
import java.net.ServerSocket;
import java.util.Optional;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.FutureTask;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.function.Consumer;
import java.util.logging.Level;
import java.util.logging.Logger;
public final class CommunicationThread {
private static final Logger LOG = Log.getLogger();
private final Consumer sendInitialData;
private final ReceiveStrategy receive;
private final ServerSocket socket;
private FutureTask future;
public CommunicationThread(final ServerSocket socket,
final Consumer sendInitialData,
final ReceiveStrategy receive) {
this.socket = socket;
this.sendInitialData = sendInitialData;
this.receive = receive;
}
public void start() throws IOException, InterruptedException {
this.future = createFuture();
}
private FutureTask createFuture() {
final FutureTask newFuture = new FutureTask<>(
new SocketReadingCallable(this.socket, this.sendInitialData,
this.receive));
final Thread thread = new Thread(newFuture);
thread.setDaemon(true);
thread.setName("pit communication");
thread.start();
return newFuture;
}
public Optional waitToFinish(int pollSeconds) {
try {
return Optional.of(this.future.get(pollSeconds, TimeUnit.SECONDS));
} catch (final ExecutionException e) {
LOG.log(Level.WARNING, "Error while watching child process", e);
return Optional.of(ExitCode.UNKNOWN_ERROR);
} catch (final InterruptedException e) {
LOG.log(Level.WARNING, "interrupted while waiting for child process", e);
return Optional.of(ExitCode.UNKNOWN_ERROR);
} catch (final TimeoutException e) {
return Optional.empty();
}
}
}