package org.apache.commons.jcs.auxiliary.disk.indexed;
   
   /*
    * 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.
   */
  
  import java.io.IOException;
  
  import org.apache.commons.jcs.auxiliary.disk.behavior.IDiskCacheAttributes.DiskLimitType;
  import org.apache.commons.jcs.engine.CacheElement;
  import org.apache.commons.jcs.engine.behavior.ICacheElement;
  
  public class IndexDiskCacheCountUnitTest extends IndexDiskCacheUnitTestAbstract {
  
  	@Override
  	public IndexedDiskCacheAttributes getCacheAttributes() {
  		IndexedDiskCacheAttributes ret = new IndexedDiskCacheAttributes();
  		ret.setDiskLimitType(DiskLimitType.COUNT);
  		return ret;
  	}
  	  public void testRecycleBin()
  		        throws IOException
  		    {
  		        IndexedDiskCacheAttributes cattr = getCacheAttributes();
  		        cattr.setCacheName( "testRemoveItems" );
  		        cattr.setOptimizeAtRemoveCount( 7 );
  		        cattr.setMaxKeySize( 5 );
  		        cattr.setMaxPurgatorySize( 0 );
  		        cattr.setDiskPath( "target/test-sandbox/BreakIndexTest" );
  		        IndexedDiskCache<String, String> disk = new IndexedDiskCache<String, String>( cattr );
  
  		        String[] test = { "a", "bb", "ccc", "dddd", "eeeee", "ffffff", "ggggggg", "hhhhhhhhh", "iiiiiiiiii" };
  		        String[] expect = { null, "bb", "ccc", null, null, "ffffff", null, "hhhhhhhhh", "iiiiiiiiii" };
  
  		        //System.out.println( "------------------------- testRecycleBin " );
  
  		        for ( int i = 0; i < 6; i++ )
  		        {
  		            ICacheElement<String, String> element = new CacheElement<String, String>( "testRecycleBin", "key:" + test[i], test[i] );
  		            //System.out.println( "About to add " + "key:" + test[i] + " i = " + i );
  		            disk.processUpdate( element );
  		        }
  
  		        for ( int i = 3; i < 5; i++ )
  		        {
  		            //System.out.println( "About to remove " + "key:" + test[i] + " i = " + i );
  		            disk.remove( "key:" + test[i] );
  		        }
  
  		        // there was a bug where 7 would try to be put in the empty slot left by 4's removal, but it
  		        // will not fit.
  		        for ( int i = 7; i < 9; i++ )
  		        {
  		            ICacheElement<String, String> element = new CacheElement<String, String>( "testRecycleBin", "key:" + test[i], test[i] );
  		            //System.out.println( "About to add " + "key:" + test[i] + " i = " + i );
  		            disk.processUpdate( element );
  		        }
  
  		        try
  		        {
  		            for ( int i = 0; i < 9; i++ )
  		            {
  		                ICacheElement<String, String> element = disk.get( "key:" + test[i] );
  		                if ( element != null )
  		                {
  		                    //System.out.println( "element = " + element.getVal() );
  		                }
  		                else
  		                {
  		                    //System.out.println( "null --" + "key:" + test[i] );
  		                }
  
  		                String expectedValue = expect[i];
  		                if ( expectedValue == null )
  		                {
  		                    assertNull( "Expected a null element", element );
  		                }
  		                else
  		                {
  		                    assertNotNull( "The element for key [" + "key:" + test[i] + "] should not be null. i = " + i,
  		                                   element );
  		                    assertEquals( "Elements contents do not match expected", element.getVal(), expectedValue );
  		                }
  		            }
 		        }
 		        catch ( Exception e )
 		        {
 		            e.printStackTrace();
 		            fail( "Should not get an exception: " + e.toString() );
 		        }
 
 		        disk.removeAll();
 		    }
 }