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/*-
* ============LICENSE_START=======================================================
* ONAP
* ================================================================================
* Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.policy.common.utils.time;
import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;
/**
* A timer that uses {@link TestTimeMulti} to execute its tasks.
*
* <p/>Note: this only supports the run() method of {@link TimerTask}; the other methods,
* including cancel() are not supported. However, tasks may be canceled via
* {@link Timer#cancel()}.
*
* <p/>Currently, this does not support any of the scheduling methods that take dates,
* though that could be added relatively easily.
*/
public class PseudoTimer extends Timer {
private static final String NOT_IMPLEMENTED_YET = "not implemented yet";
/**
* Time with which this item is associated.
*/
private final TestTimeMulti currentTime;
/**
* Constructs the object.
*
* @param currentTime object to be used to execute timer tasks
*/
public PseudoTimer(TestTimeMulti currentTime) {
// create as a daemon so jvm doesn't hang when it attempts to exit
super(true);
this.currentTime = currentTime;
// don't need the timer's thread
super.cancel();
}
@Override
public void schedule(TimerTask task, long delayMs) {
currentTime.enqueue(new RunnableItem(currentTime, this, delayMs, task));
}
@Override
public void schedule(TimerTask task, Date time) {
throw new UnsupportedOperationException(NOT_IMPLEMENTED_YET);
}
@Override
public void schedule(TimerTask task, long delayMs, long periodMs) {
currentTime.enqueue(new PeriodicItem(currentTime, this, delayMs, periodMs, task));
}
@Override
public void schedule(TimerTask task, Date firstTime, long period) {
throw new UnsupportedOperationException(NOT_IMPLEMENTED_YET);
}
@Override
public void scheduleAtFixedRate(TimerTask task, long delayMs, long periodMs) {
currentTime.enqueue(new PeriodicItem(currentTime, this, delayMs, periodMs, task));
}
@Override
public void scheduleAtFixedRate(TimerTask task, Date firstTime, long period) {
throw new UnsupportedOperationException(NOT_IMPLEMENTED_YET);
}
@Override
public void cancel() {
currentTime.cancelItems(this);
}
@Override
public int purge() {
return 0;
}
}
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