io.trino.sql.planner.iterative.RuleStats 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.sql.planner.iterative;
import io.airlift.stats.TimeDistribution;
import org.weakref.jmx.Managed;
import org.weakref.jmx.Nested;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicLong;
public class RuleStats
{
private final AtomicLong invocations = new AtomicLong();
private final AtomicLong hits = new AtomicLong();
private final TimeDistribution time = new TimeDistribution(TimeUnit.MICROSECONDS);
private final AtomicLong failures = new AtomicLong();
public void record(long nanos, boolean match)
{
if (match) {
hits.incrementAndGet();
}
invocations.incrementAndGet();
time.add(nanos);
}
public void recordFailure()
{
failures.incrementAndGet();
}
@Managed
public long getInvocations()
{
return invocations.get();
}
@Managed
public long getHits()
{
return hits.get();
}
@Managed
@Nested
public TimeDistribution getTime()
{
return time;
}
@Managed
public long getFailures()
{
return failures.get();
}
}