/*
    * 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.commons.jcs.jcache;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  
  import java.io.Serializable;
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.concurrent.TimeUnit;
  
  import javax.cache.Cache;
  import javax.cache.CacheManager;
  import javax.cache.Caching;
  import javax.cache.configuration.FactoryBuilder;
  import javax.cache.configuration.MutableCacheEntryListenerConfiguration;
  import javax.cache.configuration.MutableConfiguration;
  import javax.cache.event.CacheEntryEvent;
  import javax.cache.event.CacheEntryExpiredListener;
  import javax.cache.event.CacheEntryListenerException;
  import javax.cache.expiry.CreatedExpiryPolicy;
  import javax.cache.expiry.Duration;
  import javax.cache.expiry.ExpiryPolicy;
  import javax.cache.spi.CachingProvider;
  
  import org.junit.Test;
  
  public class ExpiryListenerTest {
  
      @Test
      public void listener() throws InterruptedException {
          final CachingProvider cachingProvider = Caching.getCachingProvider();
          final CacheManager cacheManager = cachingProvider.getCacheManager();
          final CacheEntryExpiredListenerImpl listener = new CacheEntryExpiredListenerImpl();
          cacheManager.createCache("default", new MutableConfiguration<String, String>()
                  .setExpiryPolicyFactory(new FactoryBuilder.SingletonFactory<ExpiryPolicy>(
                          new CreatedExpiryPolicy(new Duration(TimeUnit.MILLISECONDS, 1))))
                  .addCacheEntryListenerConfiguration(new MutableCacheEntryListenerConfiguration<String, String>(
                          FactoryBuilder.factoryOf(listener),
                          null, false, false
                  )));
          final Cache<String, String> cache = cacheManager.getCache("default");
          assertFalse(cache.containsKey("foo"));
          cache.put("foo", "bar");
          Thread.sleep(10);
          assertFalse(cache.containsKey("foo"));
          cachingProvider.close();
          assertEquals(1, listener.events.size());
      }
  
      private static class CacheEntryExpiredListenerImpl implements CacheEntryExpiredListener<String, String>, Serializable {
          private final Collection<CacheEntryEvent<? extends String, ? extends String>> events =
                  new ArrayList<CacheEntryEvent<? extends String, ? extends String>>();
  
          @Override
          public void onExpired(final Iterable<CacheEntryEvent<? extends String, ? extends String>> cacheEntryEvents)
                  throws CacheEntryListenerException {
              for (final CacheEntryEvent<? extends String, ? extends String> cacheEntryEvent : cacheEntryEvents) {
                  events.add(cacheEntryEvent);
              }
          }
      }
  }