/*
    * Copyright (c) 2002-2014, Mairie de Paris
    * All rights reserved.
    *
    * Redistribution and use in source and binary forms, with or without
    * modification, are permitted provided that the following conditions
    * are met:
    *
    *  1. Redistributions of source code must retain the above copyright notice
   *     and the following disclaimer.
   *
   *  2. Redistributions in binary form must reproduce the above copyright notice
   *     and the following disclaimer in the documentation and/or other materials
   *     provided with the distribution.
   *
   *  3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
   *     contributors may be used to endorse or promote products derived from
   *     this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   *
   * License 1.0
   */
  package fr.paris.lutece.plugins.jpa.modules.hibernate.web;
  
  import fr.paris.lutece.plugins.jpa.modules.hibernate.service.HibernateMonitorService;
  import fr.paris.lutece.plugins.jpa.modules.hibernate.service.HibernateStatistics;
  import fr.paris.lutece.plugins.jpa.modules.hibernate.util.HibernateConstants;
  import fr.paris.lutece.portal.service.spring.SpringContextService;
  import fr.paris.lutece.portal.service.template.AppTemplateService;
  import fr.paris.lutece.portal.service.util.AppLogService;
  import fr.paris.lutece.portal.service.util.AppPathService;
  import fr.paris.lutece.portal.web.admin.PluginAdminPageJspBean;
  import fr.paris.lutece.util.html.HtmlTemplate;
  
  import org.apache.commons.lang.StringUtils;
  
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import javax.servlet.http.HttpServletRequest;
  
  
  /**
   *
   * HibernateMonitorJspBean
   *
   */
  public class HibernateMonitorJspBean extends PluginAdminPageJspBean
  {
      public static final String RIGHT_MONITOR_HIBERNATE = "HIBERNATE_MONITOR";
  
      // parameters
      private static final String PARAMETER_POOL_NAME = "pool_name";
  
      // markers
      private static final String MARK_LIST_STATS = "list_stats";
      private static final String MARK_JMX_STATE = "jmx_state";
      private static final String MARK_STATS_STATE = "stats_state";
  
      // templates
      private static final String TEMPLATE_HIBERNATE_MONITOR = "admin/plugins/jpa/modules/hibernate/monitor_hibernate.html";
  
      // jsp
      private static final String JSP_HIBERNATE_MONITOR = "jsp/admin/plugins/jpa/modules/hibernate/Monitor.jsp";
  
      /**
       * HibernateMonitorService.
       * @return {@link HibernateMonitorService}
       */
      private HibernateMonitorService getHibernateMonitorService(  )
      {
          return (HibernateMonitorService) SpringContextService.getBean( HibernateConstants.BEAN_HIBERNATE_MONITOR );
      }
  
      /**
       * Displays hibernate statistics, if activated.
       * @param request the request
       * @return html page
       */
      public String getHibernateMonitor( HttpServletRequest request )
      {
          HibernateMonitorService monitorService = getHibernateMonitorService(  );
  
          Map<String, Object> model = new HashMap<String, Object>(  );
  
          List<HibernateStatistics> listStats = monitorService.computeStatistics(  );
  
         model.put( MARK_LIST_STATS, listStats );
         model.put( MARK_JMX_STATE, monitorService.isJMXEnabled(  ) );
         model.put( MARK_STATS_STATE, monitorService.isStatisticsEnabled(  ) );
 
         HtmlTemplate template = AppTemplateService.getTemplate( TEMPLATE_HIBERNATE_MONITOR, getUser(  ).getLocale(  ),
                 model );
 
         return getAdminPage( template.getHtml(  ) );
     }
 
     /**
      * Tries to active JMX beans, and then returns the {@link #JSP_HIBERNATE_MONITOR}.
      * @param request the request
      * @return {@link #JSP_HIBERNATE_MONITOR}
      */
     public String doActivateJMX( HttpServletRequest request )
     {
         HibernateMonitorService monitorService = getHibernateMonitorService(  );
 
         if ( !monitorService.doActivateJMXBeans(  ) )
         {
             AppLogService.error( "Failed to activate hibernate JMX beans" );
         }
 
         return AppPathService.getBaseUrl( request ) + JSP_HIBERNATE_MONITOR;
     }
 
     /**
      * Clears a pool statistics.
      * @param request the request
      * @return {@link #JSP_HIBERNATE_MONITOR}
      */
     public String doClearStatistics( HttpServletRequest request )
     {
         String strPoolName = request.getParameter( PARAMETER_POOL_NAME );
 
         if ( StringUtils.isNotBlank( strPoolName ) )
         {
             HibernateMonitorService monitorService = getHibernateMonitorService(  );
             monitorService.doClearStatistics( strPoolName );
         }
 
         return AppPathService.getBaseUrl( request ) + JSP_HIBERNATE_MONITOR;
     }
 
     /**
      * Enables statistics for all pools.
      * @param request request
      * @return {@link #JSP_HIBERNATE_MONITOR}
      */
     public String doEnableStatistics( HttpServletRequest request )
     {
         getHibernateMonitorService(  ).doEnableStatistics(  );
 
         return AppPathService.getBaseUrl( request ) + JSP_HIBERNATE_MONITOR;
     }
 
     /**
      * Disables statistics for all pools.
      * @param request request
      * @return {@link #JSP_HIBERNATE_MONITOR}
      */
     public String doDisableStatistics( HttpServletRequest request )
     {
         getHibernateMonitorService(  ).doDisableStatistics(  );
 
         return AppPathService.getBaseUrl( request ) + JSP_HIBERNATE_MONITOR;
     }
 }