io.trino.execution.scheduler.NodeSchedulerExporter Maven / Gradle / Ivy
/*
* 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 io.trino.execution.scheduler;
import com.google.common.collect.ImmutableMap;
import com.google.errorprone.annotations.concurrent.GuardedBy;
import com.google.inject.Inject;
import io.airlift.stats.CounterStat;
import jakarta.annotation.PreDestroy;
import org.weakref.jmx.JmxException;
import org.weakref.jmx.MBeanExport;
import org.weakref.jmx.MBeanExporter;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import static java.util.Objects.requireNonNull;
public final class NodeSchedulerExporter
{
@GuardedBy("this")
private final List mbeanExports = new ArrayList<>();
@Inject
public NodeSchedulerExporter(TopologyAwareNodeSelectorFactory nodeSelectorFactory, MBeanExporter exporter)
{
requireNonNull(nodeSelectorFactory, "nodeSelectorFactory is null");
requireNonNull(exporter, "exporter is null");
for (Map.Entry entry : nodeSelectorFactory.getPlacementCountersByName().entrySet()) {
try {
mbeanExports.add(exporter.exportWithGeneratedName(entry.getValue(), NodeScheduler.class, ImmutableMap.of("segment", entry.getKey())));
}
catch (JmxException e) {
// ignored
}
}
}
@PreDestroy
public synchronized void destroy()
{
for (MBeanExport mbeanExport : mbeanExports) {
try {
mbeanExport.unexport();
}
catch (JmxException e) {
// ignored
}
}
mbeanExports.clear();
}
}