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Elasticsearch subproject :server
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.common.util.concurrent;
/**
* A class used to wrap a {@code Runnable} that allows capturing the time of the task since creation
* through execution as well as only execution time.
*/
class TimedRunnable extends AbstractRunnable {
private final Runnable original;
private final long creationTimeNanos;
private long startTimeNanos;
private long finishTimeNanos = -1;
TimedRunnable(final Runnable original) {
this.original = original;
this.creationTimeNanos = System.nanoTime();
}
@Override
public void doRun() {
try {
startTimeNanos = System.nanoTime();
original.run();
} finally {
finishTimeNanos = System.nanoTime();
}
}
@Override
public void onRejection(final Exception e) {
if (original instanceof AbstractRunnable) {
((AbstractRunnable) original).onRejection(e);
}
}
@Override
public void onAfter() {
if (original instanceof AbstractRunnable) {
((AbstractRunnable) original).onAfter();
}
}
@Override
public void onFailure(final Exception e) {
if (original instanceof AbstractRunnable) {
((AbstractRunnable) original).onFailure(e);
}
}
@Override
public boolean isForceExecution() {
return original instanceof AbstractRunnable && ((AbstractRunnable) original).isForceExecution();
}
/**
* Return the time since this task was created until it finished running.
* If the task is still running or has not yet been run, returns -1.
*/
long getTotalNanos() {
if (finishTimeNanos == -1) {
// There must have been an exception thrown, the total time is unknown (-1)
return -1;
}
return Math.max(finishTimeNanos - creationTimeNanos, 1);
}
/**
* Return the time this task spent being run.
* If the task is still running or has not yet been run, returns -1.
*/
long getTotalExecutionNanos() {
if (startTimeNanos == -1 || finishTimeNanos == -1) {
// There must have been an exception thrown, the total time is unknown (-1)
return -1;
}
return Math.max(finishTimeNanos - startTimeNanos, 1);
}
}