/*
    * 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.extras.writer;
  
  import org.apache.commons.jcs.jcache.extras.InternalCacheRule;
  import org.junit.Rule;
  import org.junit.Test;
  
  import javax.cache.Cache;
  import javax.cache.configuration.Configuration;
  import javax.cache.configuration.MutableConfiguration;
  import javax.cache.integration.CacheWriterException;
  import java.util.HashMap;
  import java.util.HashSet;
  import java.util.Map;
  
  import static java.util.Arrays.asList;
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertTrue;
  
  public class CacheWriterAdapterTest
  {
      @Rule
      public final InternalCacheRule rule = new InternalCacheRule(this);
  
      private final Map<String, String> copy = new HashMap<String, String>();
      private final Configuration<?, ?> config = new MutableConfiguration<String, String>()
              .setStoreByValue(false).setReadThrough(true)
              .setCacheWriterFactory(new CacheWriterAdapter<String, String>()
              {
                  @Override
                  public void write(final Cache.Entry<? extends String, ? extends String> entry) throws CacheWriterException
                  {
                      copy.put(entry.getKey(), entry.getValue());
                  }
  
                  @Override
                  public void delete(final Object key) throws CacheWriterException
                  {
                      copy.remove(key);
                  }
              });
      private Cache<String, String> cache;
  
      @Test
      public void checkWriteAllAndDeleteAll()
      {
          assertTrue(copy.isEmpty());
          assertFalse(cache.iterator().hasNext());
          cache.put("foo", "bar");
          assertEquals(1, copy.size());
          cache.remove("foo");
          assertTrue(copy.isEmpty());
  
          cache.putAll(new HashMap<String, String>() {{
              put("a", "b");
              put("b", "c");
          }});
          assertEquals(2, copy.size());
          cache.removeAll(new HashSet<String>(asList("a", "b")));
          assertTrue(copy.isEmpty());
      }
  }