/*!
 * This program is free software; you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
 * Foundation.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this
 * program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
 * or from the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * 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 Lesser General Public License for more details.
 *
 * Copyright (c) 2002-2013 Pentaho Corporation..  All rights reserved.
 */

package org.pentaho.platform.web.http.session;

import org.apache.commons.collections.iterators.EnumerationIterator;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.pentaho.platform.api.engine.IParameterProvider;
import org.pentaho.platform.api.engine.IPentahoSession;
import org.pentaho.platform.engine.core.audit.AuditHelper;
import org.pentaho.platform.engine.core.audit.MessageTypes;
import org.pentaho.platform.engine.core.solution.PentahoSessionParameterProvider;
import org.pentaho.platform.engine.core.system.BaseSession;
import org.pentaho.platform.engine.core.system.PentahoSystem;

import javax.servlet.http.HttpSession;
import java.util.Iterator;
import java.util.Locale;

public class PentahoHttpSession extends BaseSession {

  private static final long serialVersionUID = 1500696455420691764L;

  private HttpSession session;

  private long authenticationTime = 0L;

  private static final Log logger = LogFactory.getLog( PentahoHttpSession.class );

  @Override
  public Log getLogger() {
    return PentahoHttpSession.logger;
  }

  public PentahoHttpSession( final String userName, final HttpSession session, final Locale locale,
      final IPentahoSession userSession ) {
    super( userName, session.getId(), locale );

    this.session = session;

    // run any session initialization actions
    IParameterProvider sessionParameters = new PentahoSessionParameterProvider( userSession );
    PentahoSystem.sessionStartup( this, sessionParameters );
  }

  @SuppressWarnings( "rawtypes" )
  public Iterator getAttributeNames() {
    return new EnumerationIterator( session.getAttributeNames() );
  }

  public Object getAttribute( final String attributeName ) {
    return session.getAttribute( attributeName );
  }

  public void setAttribute( final String attributeName, final Object value ) {
    session.setAttribute( attributeName, value );
  }

  public Object removeAttribute( final String attributeName ) {
    Object result = getAttribute( attributeName );
    session.removeAttribute( attributeName );
    return result;
  }

  @Override
  public void setAuthenticated( String name ) {
    super.setAuthenticated( name );
    authenticationTime = System.currentTimeMillis();
  }

  @Override
  public void destroy() {
    // audit session destruction
    if ( !"anonymousUser".equals( getName() ) ) {
      AuditHelper.audit( getId(), getName(), getActionName(), getObjectName(),
          "", MessageTypes.SESSION_END, "", "", ( ( System.currentTimeMillis() - authenticationTime ) / 1000F ), null ); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
    }
    super.destroy();
  }

}