/*
 * 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.ext.backup.impl.rdbms;

import org.exoplatform.commons.utils.PrivilegedFileHelper;
import org.exoplatform.services.jcr.core.ManageableRepository;
import org.exoplatform.services.jcr.ext.backup.BackupConfig;
import org.exoplatform.services.jcr.ext.backup.impl.AbstractFullBackupJob;
import org.exoplatform.services.jcr.ext.backup.impl.FileNameProducer;
import org.exoplatform.services.jcr.impl.backup.BackupException;
import org.exoplatform.services.jcr.impl.backup.Backupable;
import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.URL;
import java.util.Calendar;
import java.util.List;

import javax.jcr.RepositoryException;

/**
 * Created by The eXo Platform SARL Author : Alex Reshetnyak alex.reshetnyak@exoplatform.com.ua Nov
 * 21, 2007
 */
public class FullBackupJob extends AbstractFullBackupJob
{
   /**
   * Logger.
   */
   protected static final Log LOG = ExoLogger.getLogger("exo.jcr.component.ext.FullBackupJob");

   /**
    * {@inheritDoc}
    */
   @Override
   protected URL createStorage() throws FileNotFoundException, IOException
   {
      FileNameProducer fnp =
         new FileNameProducer(config.getRepository(), config.getWorkspace(),
            PrivilegedFileHelper.getAbsolutePath(config.getBackupDir()), super.timeStamp, true, true);

      return new URL("file:" + PrivilegedFileHelper.getAbsolutePath(fnp.getNextFile()));
   }

   /**
    * {@inheritDoc}
    */
   public void init(ManageableRepository repository, String workspaceName, BackupConfig config, Calendar timeStamp)
   {
      this.repository = repository;
      this.workspaceName = workspaceName;
      this.config = config;
      this.timeStamp = timeStamp;

      try
      {
         url = createStorage();
      }
      catch (FileNotFoundException e)
      {
         LOG.error("Full backup initialization failed ", e);
         notifyError("Full backup initialization failed ", e);
      }
      catch (IOException e)
      {
         LOG.error("Full backup initialization failed ", e);
         notifyError("Full backup initialization failed ", e);
      }
   }

   /**
    * {@inheritDoc}
    */
   public void run()
   {
      notifyListeners();

      try
      {
         repository.getWorkspaceContainer(workspaceName).setState(ManageableRepository.SUSPENDED);

         List<Backupable> backupableComponents =
            repository.getWorkspaceContainer(workspaceName).getComponentInstancesOfType(Backupable.class);

         // backup all components
         for (Backupable component : backupableComponents)
         {
            component.backup(new File(getStorageURL().getFile()));
         }
      }
      catch (BackupException e)
      {
         LOG.error("Full backup failed " + getStorageURL().getPath(), e);
         notifyError("Full backup failed", e);
      }
      catch (RepositoryException e)
      {
         LOG.error("Full backup failed " + getStorageURL().getPath(), e);
         notifyError("Full backup failed", e);
      }
      finally
      {
         try
         {
            repository.getWorkspaceContainer(workspaceName).setState(ManageableRepository.ONLINE);
         }
         catch (RepositoryException e)
         {
            LOG.error("Full backup failed " + getStorageURL().getPath(), e);
            notifyError("Full backup failed", e);
         }
      }

      state = FINISHED;
      notifyListeners();
   }

   /**
    * {@inheritDoc}
    */
   public void stop()
   {
      LOG.info("Stop requested " + getStorageURL().getPath());
   }
}