DestroyCountCache.java

/*
 * 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.solr.handler.dataimport;

import static org.hamcrest.CoreMatchers.nullValue;

import java.util.IdentityHashMap;
import java.util.Map;

import org.junit.Assert;

public class DestroyCountCache extends SortedMapBackedCache {
  static Map<DIHCache,DIHCache> destroyed = new IdentityHashMap<>();
  
  @Override
  public void destroy() {
    super.destroy();
    Assert.assertThat(destroyed.put(this, this), nullValue());
  }
  
  public DestroyCountCache() {}
  
}