com.netflix.spectator.api.ManualClock 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.atomic.AtomicLong;
/**
* Clock implementation that allows the user to explicitly control the time. Typically used for
* unit tests.
*/
public class ManualClock implements Clock {
private final AtomicLong wall;
private final AtomicLong monotonic;
/** Create a new instance. */
public ManualClock() {
this(0L, 0L);
}
/**
* Create a new instance.
*
* @param wallInit
* Initial value for the wall time.
* @param monotonicInit
* Initial value for the monotonic time.
*/
public ManualClock(long wallInit, long monotonicInit) {
wall = new AtomicLong(wallInit);
monotonic = new AtomicLong(monotonicInit);
}
@Override public long wallTime() {
return wall.get();
}
@Override public long monotonicTime() {
return monotonic.get();
}
/** Set the wall time to the value {@code t}. */
public void setWallTime(long t) {
wall.set(t);
}
/** Set the monotonic time to the value {@code t}. */
public void setMonotonicTime(long t) {
monotonic.set(t);
}
}