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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.process.cluster.hz;
import com.hazelcast.cluster.Cluster;
import com.hazelcast.cluster.Member;
import com.hazelcast.cluster.MemberSelector;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.core.HazelcastInstanceNotActiveException;
import com.hazelcast.core.IExecutorService;
import com.hazelcast.core.MultiExecutionCallback;
import com.hazelcast.map.IMap;
import java.util.Map;
import java.util.Set;
import java.util.UUID;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.concurrent.locks.Lock;
import java.util.stream.Collectors;
import org.slf4j.LoggerFactory;
class HazelcastMemberImpl implements HazelcastMember {
private final HazelcastInstance hzInstance;
HazelcastMemberImpl(HazelcastInstance hzInstance) {
this.hzInstance = hzInstance;
}
@Override
public <E> DistributedReference<E> getAtomicReference(String name) {
return new DistributedReference<>(hzInstance.getMap(name));
}
@Override
public <K, V> Map<K, V> getReplicatedMap(String s) {
return hzInstance.getReplicatedMap(s);
}
@Override
public UUID getUuid() {
return hzInstance.getLocalEndpoint().getUuid();
}
@Override
public Set<UUID> getMemberUuids() {
return hzInstance.getCluster().getMembers().stream().map(Member::getUuid).collect(Collectors.toSet());
}
@Override
public Lock getLock(String s) {
IMap<String, UUID> lockMap = hzInstance.getMap("distributedLocks");
return new DistributedLock(lockMap, s);
}
@Override
public long getClusterTime() {
return hzInstance.getCluster().getClusterTime();
}
@Override
public Cluster getCluster() {
return hzInstance.getCluster();
}
@Override
public <T> DistributedAnswer<T> call(DistributedCall<T> callable, MemberSelector memberSelector, long timeoutMs)
throws InterruptedException {
IExecutorService executor = hzInstance.getExecutorService("default");
Map<Member, Future<T>> futures = executor.submitToMembers(callable, memberSelector);
try {
DistributedAnswer<T> distributedAnswer = new DistributedAnswer<>();
long maxTime = System.currentTimeMillis() + timeoutMs;
for (Map.Entry<Member, Future<T>> entry : futures.entrySet()) {
long remainingMs = Math.max(maxTime - System.currentTimeMillis(), 5L);
try {
T answer = entry.getValue().get(remainingMs, TimeUnit.MILLISECONDS);
distributedAnswer.setAnswer(entry.getKey(), answer);
} catch (ExecutionException e) {
distributedAnswer.setFailed(entry.getKey(), e);
} catch (TimeoutException e) {
distributedAnswer.setTimedOut(entry.getKey());
}
}
return distributedAnswer;
} finally {
futures.values().forEach(f -> f.cancel(true));
}
}
@Override
public <T> void callAsync(DistributedCall<T> callable, MemberSelector memberSelector, DistributedCallback<T> callback) {
IExecutorService executor = hzInstance.getExecutorService("default");
// callback doesn't handle failures, so we need to make sure the callable won't fail!
executor.submitToMembers(callable, memberSelector, new MultiExecutionCallback() {
@Override
public void onResponse(Member member, Object value) {
// nothing to do when each node responds
}
@Override
public void onComplete(Map<Member, Object> values) {
callback.onComplete((Map<Member, T>) values);
}
});
}
@Override
public void close() {
try {
hzInstance.shutdown();
} catch (HazelcastInstanceNotActiveException e) {
LoggerFactory.getLogger(getClass()).debug("Unable to shutdown Hazelcast member", e);
}
}
}
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