/*
 * Copyright (C) 2003-2010 eXo Platform SAS.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public License
 * as published by the Free Software Foundation; either version 3
 * of the License, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see<http://www.gnu.org/licenses/>.
 */
package org.exoplatform.services.jcr.statistics;

import org.exoplatform.commons.utils.ClassLoading;
import org.exoplatform.container.xml.InitParams;
import org.exoplatform.container.xml.ValuesParam;
import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;

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

/**
 * The configuration of the {@link JCRAPIAspect}
 * 
 * Created by The eXo Platform SAS
 * Author : Nicolas Filotto 
 *          nicolas.filotto@exoplatform.com
 * 9 avr. 2010  
 */
public class JCRAPIAspectConfig
{

   /**
    * The logger
    */
   private static final Log LOG = ExoLogger.getLogger("exo.jcr.component.statistics.JCRAPIAspectConfig");

   /**
    * The list of interfaces that we want to monitor
    */
   private Class<?>[] targetInterfaces;

   /**
    * Default constructor
    */
   public JCRAPIAspectConfig(InitParams params)
   {
      this.targetInterfaces = loadTargetInterfaces(params.getValuesParam("targetInterfaces"));
   }

   /**
    * @return the list of interfaces to monitor
    */
   private Class<?>[] loadTargetInterfaces(ValuesParam params)
   {
      List<?> values = params.getValues();
      List<Class<?>> lTargetInterfaces = new ArrayList<Class<?>>();
      if (values != null)
      {
         for (Object o : params.getValues())
         {
            String className = null;
            try
            {
               className = (String)o;
               lTargetInterfaces.add(ClassLoading.forName(className, this));
            }
            catch (Exception e)
            {
               LOG.warn("Cannot find the target interface " + className, e);
            }
         }
      }
      Class<?>[] targetInterfaces = new Class<?>[lTargetInterfaces.size()];
      return (Class<?>[])lTargetInterfaces.toArray(targetInterfaces);
   }
   
   /**
    * @return the list of target interfaces
    */
   public Class<?>[] getTargetInterfaces()
   {
      return targetInterfaces;
   }
}