org.sonar.process.cluster.health.HealthStateRefresher Maven / Gradle / Ivy
/*
* SonarQube
* Copyright (C) 2009-2018 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.process.cluster.health;
import java.util.concurrent.TimeUnit;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class HealthStateRefresher {
private static final Logger LOG = LoggerFactory.getLogger(HealthStateRefresher.class);
private static final int INITIAL_DELAY = 1;
private static final int DELAY = 10;
private final HealthStateRefresherExecutorService executorService;
private final NodeHealthProvider nodeHealthProvider;
private final SharedHealthState sharedHealthState;
public HealthStateRefresher(HealthStateRefresherExecutorService executorService, NodeHealthProvider nodeHealthProvider,
SharedHealthState sharedHealthState) {
this.executorService = executorService;
this.nodeHealthProvider = nodeHealthProvider;
this.sharedHealthState = sharedHealthState;
}
public void start() {
executorService.scheduleWithFixedDelay(this::refresh, INITIAL_DELAY, DELAY, TimeUnit.SECONDS);
}
private void refresh() {
try {
NodeHealth nodeHealth = nodeHealthProvider.get();
sharedHealthState.writeMine(nodeHealth);
} catch (Throwable t) {
LOG.error("An error occurred while attempting to refresh HealthState of the current node in the shared state:", t);
}
}
public void stop() {
sharedHealthState.clearMine();
}
}