package org.apache.commons.jcs3.auxiliary.disk.jdbc.mysql;
   
   /*
    * 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 static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertNotNull;
  import static org.junit.Assert.assertNull;
  
  import java.sql.Connection;
  import java.sql.DriverManager;
  import java.util.HashSet;
  import java.util.Map;
  import java.util.Set;
  
  import org.apache.commons.jcs3.auxiliary.disk.jdbc.HsqlSetupTableUtil;
  import org.apache.commons.jcs3.JCS;
  import org.apache.commons.jcs3.access.CacheAccess;
  import org.apache.commons.jcs3.engine.behavior.ICacheElement;
  import org.junit.Before;
  import org.junit.BeforeClass;
  import org.junit.Test;
  
  /**
   * Runs basic tests for the JDBC disk cache.
   */
  public class MySQLDiskCacheHsqlBackedUnitTest
  {
      /**
       * Creates the DB
       * <p>
       * @throws Exception
       */
      @BeforeClass
      public static void setupDatabase() throws Exception
      {
          System.setProperty( "hsqldb.cache_scale", "8" );
  
          final String rafroot = "target";
          final String url = "jdbc:hsqldb:";
          final String database = rafroot + "/MySQLDiskCacheHsqlBackedUnitTest";
          final String user = "sa";
          final String password = "";
  
          new org.hsqldb.jdbcDriver();
          final Connection cConn = DriverManager.getConnection( url + database, user, password );
  
          HsqlSetupTableUtil.setupTABLE( cConn, "JCS_STORE_MYSQL" );
      }
  
      /**
       * Test setup
       */
      @Before
      public void setUp()
      {
          JCS.setConfigFilename( "/TestMySQLDiskCache.ccf" );
      }
  
      /**
       * Test the basic JDBC disk cache functionality with a hsql backing.
       * @throws Exception
       */
      @Test
      public void testSimpleJDBCPutGetWithHSQL()
          throws Exception
      {
          runTestForRegion( "testCache1", 200 );
      }
  
      /**
       * Adds items to cache, gets them, and removes them. The item count is more than the size of the
       * memory cache, so items should spool to disk.
       * <p>
       * @param region Name of the region to access
       * @param items
       * @throws Exception If an error occurs
       */
      public void runTestForRegion( final String region, final int items )
          throws Exception
      {
          final CacheAccess<String, String> jcs = JCS.getInstance( region );
          //System.out.println( "BEFORE PUT \n" + jcs.getStats() );
 
         // Add items to cache
         for ( int i = 0; i < items; i++ )
         {
             jcs.put( i + ":key", region + " data " + i );
         }
 
         //System.out.println( jcs.getStats() );
         Thread.sleep( 1000 );
         //System.out.println( jcs.getStats() );
 
         // Test that all items are in cache
         for ( int i = 0; i < items; i++ )
         {
             final String value = jcs.get( i + ":key" );
 
             assertEquals( "key = [" + i + ":key] value = [" + value + "]", region + " data " + i, value );
         }
 
         // Test that getElements returns all the expected values
         final Set<String> keys = new HashSet<>();
         for ( int i = 0; i < items; i++ )
         {
             keys.add( i + ":key" );
         }
 
         final Map<String, ICacheElement<String, String>> elements = jcs.getCacheElements( keys );
         for ( int i = 0; i < items; i++ )
         {
             final ICacheElement<String, String> element = elements.get( i + ":key" );
             assertNotNull( "element " + i + ":key is missing", element );
             assertEquals( "value " + i + ":key", region + " data " + i, element.getVal() );
         }
 
         // Remove all the items
         for ( int i = 0; i < items; i++ )
         {
             jcs.remove( i + ":key" );
         }
 
         // Verify removal
 
         for ( int i = 0; i < items; i++ )
         {
             assertNull( "Removed key should be null: " + i + ":key", jcs.get( i + ":key" ) );
         }
     }
 
     /**
      * Test the basic JDBC disk cache functionality with a hsql backing.
      * <p>
      * @throws Exception
      */
     @Test
     public void testPutGetMatchingWithHSQL()
         throws Exception
     {
         // SETUP
         final int items = 200;
         final String region = "testCache2";
         final CacheAccess<String, String> jcs = JCS.getInstance( region );
 //        System.out.println( "BEFORE PUT \n" + jcs.getStats() );
 
         // DO WORK
         for ( int i = 0; i < items; i++ )
         {
             jcs.put( i + ":key", region + " data " + i );
         }
         Thread.sleep( 1000 );
 
         final Map<String, ICacheElement<String, String>> matchingResults = jcs.getMatchingCacheElements( "1.8.+" );
 
         // VERIFY
         assertEquals( "Wrong number returned", 10, matchingResults.size() );
 //        System.out.println( "matchingResults.keySet() " + matchingResults.keySet() );
 //        System.out.println( "\nAFTER TEST \n" + jcs.getStats() );
     }
 }