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Apache Solr (module: core)
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.solr.metrics;
import com.codahale.metrics.Clock;
import com.codahale.metrics.Snapshot;
import com.codahale.metrics.Timer;
import java.time.Duration;
import java.util.concurrent.Callable;
import java.util.concurrent.TimeUnit;
import java.util.function.Supplier;
/**
* A timer implementation that is aware of both primary and delegate metrics belonging to different
* registries and able to update metrics in multiple registries
*
* @see SolrDelegateRegistryMetricsContext
*/
public class DelegateRegistryTimer extends Timer {
private final Timer primaryTimer;
private final Timer delegateTimer;
private final Clock clock;
public DelegateRegistryTimer(Clock clock, Timer primaryTimer, Timer delegateTimer) {
this.primaryTimer = primaryTimer;
this.delegateTimer = delegateTimer;
this.clock = clock;
}
@Override
public void update(long duration, TimeUnit unit) {
primaryTimer.update(duration, unit);
delegateTimer.update(duration, unit);
}
@Override
public void update(Duration duration) {
primaryTimer.update(duration);
delegateTimer.update(duration);
}
@Override
public T time(Callable event) throws Exception {
final long startTime = clock.getTick();
try {
return event.call();
} finally {
update(clock.getTick() - startTime, TimeUnit.NANOSECONDS);
}
}
@Override
public T timeSupplier(Supplier event) {
final long startTime = clock.getTick();
try {
return event.get();
} finally {
update(clock.getTick() - startTime, TimeUnit.NANOSECONDS);
}
}
@Override
public void time(Runnable event) {
final long startTime = clock.getTick();
try {
event.run();
} finally {
update(clock.getTick() - startTime, TimeUnit.NANOSECONDS);
}
}
@Override
public Context time() {
return super.time();
}
@Override
public long getCount() {
return primaryTimer.getCount();
}
@Override
public double getFifteenMinuteRate() {
return primaryTimer.getFifteenMinuteRate();
}
@Override
public double getFiveMinuteRate() {
return primaryTimer.getFiveMinuteRate();
}
@Override
public double getMeanRate() {
return primaryTimer.getMeanRate();
}
@Override
public double getOneMinuteRate() {
return primaryTimer.getOneMinuteRate();
}
@Override
public Snapshot getSnapshot() {
return primaryTimer.getSnapshot();
}
public Timer getPrimaryTimer() {
return primaryTimer;
}
public Timer getDelegateTimer() {
return delegateTimer;
}
}