/*
    * 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.maven.lifecycle.internal.stub;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  import java.util.concurrent.Callable;
  import java.util.concurrent.CompletionService;
  import java.util.concurrent.Future;
  import java.util.concurrent.FutureTask;
  import java.util.concurrent.TimeUnit;
  
  import org.apache.maven.lifecycle.internal.ProjectSegment;
  
  /**
   * @author Kristian Rosenvold
   */
  public class CompletionServiceStub implements CompletionService<ProjectSegment> {
      List<FutureTask<ProjectSegment>> projectBuildFutureTasks =
              Collections.synchronizedList(new ArrayList<FutureTask<ProjectSegment>>());
  
      final boolean finishImmediately;
  
      public int size() {
          return projectBuildFutureTasks.size();
      }
  
      public CompletionServiceStub(boolean finishImmediately) {
          this.finishImmediately = finishImmediately;
      }
  
      public Future<ProjectSegment> submit(Callable<ProjectSegment> task) {
          FutureTask<ProjectSegment> projectBuildFutureTask = new FutureTask<>(task);
          projectBuildFutureTasks.add(projectBuildFutureTask);
          if (finishImmediately) {
              projectBuildFutureTask.run();
          }
          return projectBuildFutureTask;
      }
  
      public Future<ProjectSegment> submit(Runnable task, ProjectSegment result) {
          FutureTask<ProjectSegment> projectBuildFutureTask = new FutureTask<>(task, result);
          projectBuildFutureTasks.add(projectBuildFutureTask);
          if (finishImmediately) {
              projectBuildFutureTask.run();
          }
          return projectBuildFutureTask;
      }
  
      public Future<ProjectSegment> take() throws InterruptedException {
          return null;
      }
  
      public Future<ProjectSegment> poll() {
          return null;
      }
  
      public Future<ProjectSegment> poll(long timeout, TimeUnit unit) throws InterruptedException {
          return null;
      }
  }