io.cdap.cdap.internal.app.runtime.schedule.constraint.DelayConstraint Maven / Gradle / Ivy
/*
* Copyright © 2017 Cask Data, 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 io.cdap.cdap.internal.app.runtime.schedule.constraint;
import io.cdap.cdap.internal.app.runtime.schedule.ProgramSchedule;
import io.cdap.cdap.proto.ProtoConstraint;
import java.util.concurrent.TimeUnit;
/**
* A constraint which requires a certain amount of delay pass after the trigger is fired, before executing the program.
*/
public class DelayConstraint extends ProtoConstraint.DelayConstraint implements CheckableConstraint {
public DelayConstraint(long delayAfterTrigger, TimeUnit unit) {
super(delayAfterTrigger, unit);
}
@Override
public ConstraintResult check(ProgramSchedule schedule, ConstraintContext context) {
long elapsedTime = context.getCheckTimeMillis() - context.getJob().getCreationTime();
if (elapsedTime >= millisAfterTrigger) {
return ConstraintResult.SATISFIED;
}
return new ConstraintResult(ConstraintResult.SatisfiedState.NOT_SATISFIED,
context.getJob().getCreationTime() + millisAfterTrigger);
}
}