content: /*
   * Created on Dec 19, 2009
   * 
   * 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.
   * 
   * Copyright @2009-2013 the original author or authors.
   */
  package org.fest.swing.driver;
  
  import static java.util.concurrent.Executors.newSingleThreadExecutor;
  import static org.fest.swing.driver.JProgressBarSetIndetermintateTask.setIntedeterminate;
  import static org.fest.util.Strings.concat;
  
  import java.util.concurrent.ExecutorService;
  import java.util.concurrent.Future;
  import java.util.concurrent.TimeUnit;
  import java.util.logging.Logger;
  
  import javax.annotation.Nonnull;
  import javax.swing.JProgressBar;
  
  import org.fest.swing.core.Robot;
  
  /**
   * Asynchronously moves a {@code JProgressBar} to a determinate state, given an increment and a period of time in
   * between increments.
   * 
   * @author Alex Ruiz
   */
  class JProgressBarMakeDeterminateAsyncTask {
    private static Logger logger = Logger.getAnonymousLogger();
  
    static @Nonnull
    TaskBuilder makeDeterminate(@Nonnull JProgressBar progressBar) {
      return new TaskBuilder(progressBar);
    }
  
    private final ExecutorService executor = newSingleThreadExecutor();
    private final Runnable task;
    private Future<?> future;
  
    private final Robot robot;
    private final JProgressBar progressBar;
    private final long periodInMs;
  
    private JProgressBarMakeDeterminateAsyncTask(@Nonnull Robot robot, @Nonnull JProgressBar progressBar, long periodInMs) {
      this.robot = robot;
      this.progressBar = progressBar;
      this.periodInMs = periodInMs;
      task = createInnerTask();
    }
  
    private @Nonnull
    Runnable createInnerTask() {
      return new Runnable() {
        @Override
        public void run() {
          try {
            sleepAndMakeDeterminate();
          } catch (InterruptedException e) {
            logger.info("Task has been cancelled");
          }
        }
      };
    }
  
    private void sleepAndMakeDeterminate() throws InterruptedException {
      logger.info(concat("Going to sleep for ", periodInMs, " ms"));
      Thread.sleep(periodInMs);
      setIntedeterminate(progressBar, false);
      logger.info(concat("JProgressBar is in determinate state"));
      robot.waitForIdle();
    }
  
    synchronized void runAsynchronously() {
      future = executor.submit(task);
    }
  
    synchronized void cancelIfNotFinished() {
      if (future != null && !future.isDone()) {
        future.cancel(true);
      }
    }
  
    static class TaskBuilder {
      private final JProgressBar progressBar;
      private long periodInMs = 1000;
  
      TaskBuilder(@Nonnull JProgressBar progressBar) {
        this.progressBar = progressBar;
      }
  
      @Nonnull
      TaskBuilder after(long duration, @Nonnull TimeUnit timeUnit) {
        periodInMs = timeUnit.toMillis(duration);
        return this;
      }
  
      @Nonnull
      JProgressBarMakeDeterminateAsyncTask createTask(@Nonnull Robot robot) {
        return new JProgressBarMakeDeterminateAsyncTask(robot, progressBar, periodInMs);
      }
    }
  }
  