| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF 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.apache.flink.statefun.examples.ridesharing.simulator.simulation.engine; |
| |
| import java.util.Objects; |
| import java.util.concurrent.ConcurrentLinkedDeque; |
| import javax.annotation.Nullable; |
| |
| final class Task { |
| |
| private final ConcurrentLinkedDeque<Object> events = new ConcurrentLinkedDeque<>(); |
| |
| private final Simulatee simulatee; |
| |
| Task(Simulatee simulatee) { |
| this.simulatee = Objects.requireNonNull(simulatee); |
| } |
| |
| String id() { |
| return simulatee.id(); |
| } |
| |
| final void enqueue(Object event) { |
| Objects.requireNonNull(event); |
| events.add(event); |
| } |
| |
| final void processEnqueued() { |
| final Simulatee simulatee = this.simulatee; |
| while (!simulatee.isDone()) { |
| final @Nullable Object event = events.poll(); |
| if (event == null) { |
| return; |
| } |
| simulatee.apply(event); |
| } |
| } |
| |
| boolean isDone() { |
| return simulatee.isDone(); |
| } |
| |
| boolean needReschedule() { |
| return simulatee.needReschedule(); |
| } |
| } |