/*
 * Copyright (C) 2009 eXo Platform SAS.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.exoplatform.services.jcr.impl.dataflow.persistent;

import org.exoplatform.services.jcr.JcrImplBaseTest;
import org.exoplatform.services.jcr.access.AccessControlList;
import org.exoplatform.services.jcr.dataflow.persistent.WorkspaceStorageCache;
import org.exoplatform.services.jcr.datamodel.InternalQName;
import org.exoplatform.services.jcr.datamodel.NodeData;
import org.exoplatform.services.jcr.datamodel.QPath;
import org.exoplatform.services.jcr.impl.Constants;
import org.exoplatform.services.jcr.impl.dataflow.TransientNodeData;
import org.exoplatform.services.jcr.util.IdGenerator;

import java.util.ArrayList;
import java.util.List;

/**
 * Created by The eXo Platform SAS.
 * 
 * @author <a href="mailto:peter.nedonosko@exoplatform.com.ua">Peter Nedonosko</a>
 * @version $Id: TestLinkedWorkspaceStorageCacheMetrics.java 34801 2009-07-31 15:44:50Z dkatayev $
 */
public class TestLinkedWorkspaceStorageCacheMetrics extends JcrImplBaseTest
{

   /**
    * Test live time.
    * 
    * @throws Exception
    */
   public void testLiveTime() throws Exception
   {
      final int cacheSize = 500;
      final int liveTime = 10; // sec
      WorkspaceStorageCache cache =
         new LinkedWorkspaceStorageCacheImpl("testLiveTime_cache", true, cacheSize, liveTime, 60 * 1000, 20 * 1000,
            false, true, 0, true);

      NodeData parent =
         new TransientNodeData(QPath.parse("[]:1[]parent:1"), IdGenerator.generate(), 1, Constants.NT_UNSTRUCTURED,
            new InternalQName[0], 1, IdGenerator.generate(), new AccessControlList());
      cache.put(parent);

      List<NodeData> childs = new ArrayList<NodeData>();
      for (int i = 0; i < 200; i++)
      {
         NodeData child =
            TransientNodeData.createNodeData(parent, InternalQName.parse("[]node " + i + " :1"),
               Constants.NT_UNSTRUCTURED);
         cache.put(child);
         childs.add(child);
      }

      Thread.sleep(liveTime * 1000);

      assertEquals("Wrong size", 201 * 2, cache.getSize());

      // but nothing can be getted
      assertNull("Should be uncached (time expired)", cache.get(parent.getIdentifier()));
      assertNull("Should be uncached (time expired)", cache.get(childs.get(10).getIdentifier()));

      // items were removed on get
      assertEquals("Wrong size", (201 - 2) * 2, cache.getSize());
   }

   /**
    * Test if expired scheduler works.
    * 
    * Test instance runs after 5 second. (*) <br/>
    * 
    * @throws Exception
    */
   public void testExpiredScheduler() throws Exception
   {
      final int cacheSize = 500;
      final int liveTime = 30; // sec
      WorkspaceStorageCache cache =
         new LinkedWorkspaceStorageCacheImpl("testExpiredScheduler_cache", true, cacheSize, liveTime,
            liveTime * 1000 + 10000, 10 * 1000, false, true, 0, true); // (*)

      NodeData parent =
         new TransientNodeData(QPath.parse("[]:1[]parent:1"), IdGenerator.generate(), 1, Constants.NT_UNSTRUCTURED,
            new InternalQName[0], 1, IdGenerator.generate(), new AccessControlList());
      cache.put(parent);

      List<NodeData> childs = new ArrayList<NodeData>();
      for (int i = 0; i < 200; i++)
      {
         NodeData child =
            TransientNodeData.createNodeData(parent, InternalQName.parse("[]node " + i + " :1"),
               Constants.NT_UNSTRUCTURED);
         cache.put(child);
         childs.add(child);
      }

      assertEquals("Wrong size", 201 * 2, cache.getSize());

      Thread.sleep(liveTime * 1000); // wait items expired

      // but nothing can be getted
      assertNull("Should be uncached (time expired)", cache.get(parent.getIdentifier()));
      assertNull("Should be uncached (time expired)", cache.get(childs.get(10).getIdentifier()));

      Thread.sleep((liveTime + 10) * 1000); // wait expired items will be removed by scheduler (*)

      // items were removed on get
      assertEquals("Wrong size", 0, cache.getSize());
   }

   /**
    * Test size limit.
    * 
    * @throws Exception
    */
   public void testSize() throws Exception
   {
      final int cacheSize = 500;
      WorkspaceStorageCache cache =
         new LinkedWorkspaceStorageCacheImpl("testSize_cache", true, cacheSize, 120, 60 * 1000, 20 * 1000, false, true,
            0, true);

      NodeData parent =
         new TransientNodeData(QPath.parse("[]:1[]parent:1"), IdGenerator.generate(), 1, Constants.NT_UNSTRUCTURED,
            new InternalQName[0], 1, IdGenerator.generate(), new AccessControlList());
      for (int i = 0; i < 200; i++)
      {
         NodeData child =
            TransientNodeData.createNodeData(parent, InternalQName.parse("[]node " + i + " :1"),
               Constants.NT_UNSTRUCTURED);
         cache.put(child);
      }

      assertEquals("Wrong size", 200 * 2, cache.getSize());

      for (int i = 0; i < 100; i++)
      {
         NodeData child =
            TransientNodeData.createNodeData(parent, InternalQName.parse("[]node A " + i + " :1"),
               Constants.NT_UNSTRUCTURED);
         cache.put(child);
      }

      // nodes cached (200 + 100) * 2, but limit is cacheSize
      assertEquals("Wrong size", cacheSize, cache.getSize());
   }
}
