io.trino.sql.planner.optimizations.StatsRecordingPlanOptimizer 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.optimizations;
import io.trino.sql.planner.OptimizerStatsRecorder;
import io.trino.sql.planner.plan.PlanNode;
import static java.util.Objects.requireNonNull;
public final class StatsRecordingPlanOptimizer
implements PlanOptimizer
{
private final OptimizerStatsRecorder stats;
private final PlanOptimizer delegate;
public StatsRecordingPlanOptimizer(OptimizerStatsRecorder stats, PlanOptimizer delegate)
{
this.stats = requireNonNull(stats, "stats is null");
this.delegate = requireNonNull(delegate, "delegate is null");
stats.register(delegate);
}
@Override
public PlanNode optimize(PlanNode plan, Context context)
{
PlanNode result;
long duration;
try {
long start = System.nanoTime();
result = delegate.optimize(plan, context);
duration = System.nanoTime() - start;
context.planOptimizersStatsCollector().recordOptimizer(delegate, duration);
}
catch (RuntimeException e) {
stats.recordFailure(delegate);
context.planOptimizersStatsCollector().recordFailure(delegate);
throw e;
}
stats.record(delegate, duration);
return result;
}
}