com.netflix.spectator.api.AbstractTimer Maven / Gradle / Ivy
/**
* Copyright 2015 Netflix, Inc.
*
* 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 com.netflix.spectator.api;
import java.util.concurrent.Callable;
import java.util.concurrent.TimeUnit;
/**
* Base class to simplify implementing a {@link Timer}.
*/
public abstract class AbstractTimer implements Timer {
/** Clock to use for measuring the time of calls. */
protected final Clock clock;
/** Create a new instance. */
public AbstractTimer(Clock clock) {
this.clock = clock;
}
@Override public T record(Callable f) throws Exception {
final long s = clock.monotonicTime();
try {
return f.call();
} finally {
final long e = clock.monotonicTime();
record(e - s, TimeUnit.NANOSECONDS);
}
}
@Override public void record(Runnable f) {
final long s = clock.monotonicTime();
try {
f.run();
} finally {
final long e = clock.monotonicTime();
record(e - s, TimeUnit.NANOSECONDS);
}
}
}