/*
    * Copyright 2018 SPF4J.
    *
    * 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 org.spf4j.test.log;
  
  import edu.umd.cs.findbugs.annotations.CleanupObligation;
  import edu.umd.cs.findbugs.annotations.DischargesObligation;
  import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
  import java.util.concurrent.TimeUnit;
  import org.spf4j.base.TimeSource;
  
  /**
   * @author Zoltan Farkas
   */
  @CleanupObligation
  public interface ObservationAssert {
  
    /**
     * Assert that a sequence of messages has not been seen.
     * also unregisters this assertion handler.
     */
    @DischargesObligation
    void assertObservation();
  
  
    @SuppressFBWarnings("MDM_THREAD_YIELD")
    @DischargesObligation
    default void assertObservation(final long time, final TimeUnit tu) throws InterruptedException {
      long deadline = TimeSource.nanoTime() + tu.toNanos(time);
      AssertionError rae;
      do  {
        try {
          assertObservation();
          rae = null;
        } catch (AssertionError ae) {
          rae = ae;
        }
        if (rae == null) {
          return;
        }
        Thread.sleep(100);
      } while (TimeSource.nanoTime() < deadline);
      throw rae;
    }
  
  }