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/*
* SonarQube
* Copyright (C) 2009-2025 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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.sonar.application.cluster.health;
import com.google.common.util.concurrent.ThreadFactoryBuilder;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.sonar.process.cluster.health.HealthStateRefresher;
import org.sonar.process.cluster.health.HealthStateRefresherExecutorService;
import org.sonar.process.cluster.health.NodeHealthProvider;
import org.sonar.process.cluster.health.SharedHealthStateImpl;
import org.sonar.process.cluster.hz.HazelcastMember;
public class HealthStateSharingImpl implements HealthStateSharing {
private static final Logger LOG = LoggerFactory.getLogger(HealthStateSharingImpl.class);
private final HazelcastMember hzMember;
private final NodeHealthProvider nodeHealthProvider;
private HealthStateRefresherExecutorService executorService;
private HealthStateRefresher healthStateRefresher;
public HealthStateSharingImpl(HazelcastMember hzMember, NodeHealthProvider nodeHealthProvider) {
this.hzMember = hzMember;
this.nodeHealthProvider = nodeHealthProvider;
}
@Override
public void start() {
executorService = new DelegateHealthStateRefresherExecutorService(
Executors.newSingleThreadScheduledExecutor(
new ThreadFactoryBuilder()
.setDaemon(false)
.setNameFormat("health_state_refresh-%d")
.build()));
healthStateRefresher = new HealthStateRefresher(executorService, nodeHealthProvider, new SharedHealthStateImpl(hzMember));
healthStateRefresher.start();
}
@Override
public void stop() {
healthStateRefresher.stop();
stopExecutorService(executorService);
}
private static void stopExecutorService(ScheduledExecutorService executorService) {
// Disable new tasks from being submitted
executorService.shutdown();
try {
// Wait a while for existing tasks to terminate
if (!executorService.awaitTermination(5, TimeUnit.SECONDS)) {
// Cancel currently executing tasks
executorService.shutdownNow();
// Wait a while for tasks to respond to being canceled
if (!executorService.awaitTermination(5, TimeUnit.SECONDS)) {
LOG.warn("Pool {} did not terminate", HealthStateSharingImpl.class.getSimpleName());
}
}
} catch (InterruptedException ie) {
LOG.warn("Termination of pool {} failed", HealthStateSharingImpl.class.getSimpleName(), ie);
// (Re-)Cancel if current thread also interrupted
executorService.shutdownNow();
Thread.currentThread().interrupt();
}
}
}
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