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/*
* Copyright (c) 2012 Google 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.google.api.client.testing.http;
import com.google.api.client.util.Beta;
import com.google.api.client.util.Clock;
import java.util.concurrent.atomic.AtomicLong;
/**
* {@link Beta}
* A thread-safe fixed time implementation of the Clock to be used for unit testing.
*
* Explicitly allows you to set the time to any arbitrary value.
*
* @since 1.9
* @author [email protected] (Matthias Linder)
*/
@Beta
public class FixedClock implements Clock {
private AtomicLong currentTime;
/** Initializes the FixedClock with 0 millis as start time. */
public FixedClock() {
this(0L);
}
/**
* Initializes the FixedClock with the specified time.
*
* @param startTime time in milliseconds used for initialization.
*/
public FixedClock(long startTime) {
currentTime = new AtomicLong(startTime);
}
/**
* Changes the time value this time provider is returning.
*
* @param newTime New time in milliseconds.
*/
public FixedClock setTime(long newTime) {
currentTime.set(newTime);
return this;
}
public long currentTimeMillis() {
return currentTime.get();
}
}