// license-header java merge-point
   //
   // Attention: Generated code! Do not modify by hand!
   // Generated by: hibernate/search/PropertySearch.java.vsl in andromda-spring-cartridge.
   //
   package fr.ifremer.quadrige2.core.dao;
   
   /*-
    * #%L
   * Quadrige2 Core :: Server API
   * %%
   * Copyright (C) 2017 Ifremer
   * %%
   * 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 Affero General Public License
   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
   * #L%
   */
  
  import java.util.Calendar;
  import java.util.Date;
  import java.util.List;
  import java.util.StringTokenizer;
  import org.apache.commons.beanutils.ConversionException;
  import org.apache.commons.beanutils.ConvertUtils;
  import org.apache.commons.beanutils.Converter;
  import org.apache.commons.beanutils.PropertyUtils;
  import org.apache.commons.beanutils.converters.IntegerConverter;
  import org.apache.commons.beanutils.converters.LongConverter;
  import org.apache.commons.beanutils.converters.ShortConverter;
  import org.hibernate.HibernateException;
  import org.hibernate.Session;
  import org.hibernate.criterion.MatchMode;
  import org.hibernate.criterion.Projections;
  
  /**
   * Provides the ability to search by properties.
   */
  @SuppressWarnings({"unchecked"})
  public class PropertySearch
      extends CriteriaSearch
  {
      private Search search;
  
      /**
       * Constructor for PropertySearch. Creates a <code>PropertySearch</code> instance
       * from the given arguments.
       *
       * @param session The Hibernate session.
       * @param entityType The <code>Class</code> of the result.
       * @param searchIn the object that specifies the search criteria.
       */
      public PropertySearch(
          final Session session,
          final Class entityType,
          final Search searchIn)
      {
          super(session, entityType);
          this.search = searchIn;
          try
          {
              this.initializeConverters();
              this.getConfiguration().setForceEagerLoading(searchIn.isEagerFetching());
              final SearchParameter[] parameters = searchIn.getParameters();
              if (parameters != null)
              {
                  for (int ctr = 0; ctr < parameters.length; ctr++)
                  {
                      final SearchParameter searchParameter = parameters[ctr];
  
                      Object value;
                      switch (searchParameter.getComparator())
                      {
                          case SearchParameter.IN_COMPARATOR :
                              value = searchParameter.getValue();
                              break;
                          case SearchParameter.NOT_IN_COMPARATOR :
                              value = searchParameter.getValue();
                              break;
                          default :
                              value = this.getValue(entityType, searchParameter);
                              break;
                      }
  
                      // - now add the parameter.
                      final CriteriaSearchParameter parameter =
                          new CriteriaSearchParameter(value,
                              searchParameter.getName(),
                              searchParameter.getComparator());
                      parameter.setOrderDirection(searchParameter.getOrder());
                     parameter.setSearchIfNull(searchParameter.isSearchIfNull());
                     switch (searchParameter.getMatch())
                     {
                         case SearchParameter.MATCH_ANYWHERE :
                             parameter.setMatchMode(MatchMode.ANYWHERE);
                             break;
                         case SearchParameter.MATCH_START :
                             parameter.setMatchMode(MatchMode.START);
                             break;
                         case SearchParameter.MATCH_END :
                             parameter.setMatchMode(MatchMode.END);
                             break;
                         default:
                             parameter.setMatchMode(MatchMode.EXACT);
                             break;
                     }
                     this.addParameter(parameter);
                     if (searchIn.isUseSqlLimiting())
                     {
                         if (searchIn.getPageNumber() > 0 && searchIn.getPageSize() > 0)
                         {
                             // - set the first result as part of pagination support
                             this.getConfiguration().setFirstResult(new Integer(this.calculateFirstResult(searchIn.getPageNumber(), searchIn.getPageSize())));
                             this.getConfiguration().setMaximumResultSize(new Integer(searchIn.getPageSize()));
                         }
                     }
                 }
             }
         }
         catch (Exception exception)
         {
             throw new RuntimeException(exception);
         }
     }
 
     /**
      * Stores the total count when sql limiting isn't used.
      */
     private int totalCount;
 
     /**
      * Gets the total possible count of objects returned in this search.
      * @return totalCount
      */
     public int getTotalCount()
     {
         int count;
         if (this.search.isUseSqlLimiting())
         {
             // Remove first result requirement
             this.getConfiguration().setFirstResult(new Integer(0));
             this.getRootCriteria().setProjection(
                 Projections.projectionList().add(
                     Projections.rowCount()));
             count = ((Long)this.executeAsList().iterator().next()).intValue();
         }
         else
         {
             count = this.totalCount;
         }
         return count;
     }
 
     /**
      * @see CriteriaSearch#executeAsList()
      */
     @Override
     public List executeAsList()
         throws HibernateException
     {
         List results = super.executeAsList();
         if (!this.search.isUseSqlLimiting() && this.search.getPageNumber() > 0 && this.search.getPageSize() > 0)
         {
             int start = this.calculateFirstResult(this.search.getPageNumber(), this.search.getPageSize());
             int end = this.calculateLastResult(this.search.getPageNumber(), this.search.getPageSize());
             this.totalCount = results.size();
             if (this.totalCount < start)
             {
                 start = this.totalCount;
             }
             if (this.totalCount < end)
             {
                 end = this.totalCount;
             }
             results = results.subList(start, end);
         }
         return results;
     }
 
     /**
      * Calculates the first result based upon page size and current
      * desired page.
      *
      * @param pageNumber the page number to retrieve.
      * @param pageSize the page size to retrieve.
      *
      * @return the calculated first result.
      */
     private int calculateFirstResult(int pageNumber, int pageSize)
     {
         int firstResult = 0;
         if (pageNumber > 0 && pageSize > 0)
         {
             firstResult = (pageNumber - 1) * pageSize;
         }
         return firstResult;
     }
 
     /**
      * Calculates the last result based upon page size and current
      * desired page.
      *
      * @param pageNumber the page number to retrieve.
      * @param pageSize the page size to retrieve.
      *
      * @return the calculated first result.
      */
     private int calculateLastResult(int pageNumber, int pageSize)
     {
         int lastResult = 0;
         if (pageNumber > 0 && pageSize > 0)
         {
             lastResult = pageNumber * pageSize;
         }
         return lastResult;
     }
 
     private static final String PERIOD = ".";
 
     /**
      * Initializes the converters to behave the way we want when converting values (we don't
      * want empty strings converted to zeros, like beanutils does by default)
      */
     private void initializeConverters()
     {
         ConvertUtils.register(new LongConverter(null), Long.class);
         ConvertUtils.register(new IntegerConverter(null), Integer.class);
         ConvertUtils.register(new ShortConverter(null), Short.class);
         ConvertUtils.register(new CalendarConverter(), Calendar.class);
         ConvertUtils.register(new DateConverter(), Date.class);
     }
 
     /**
      * <p>Convert the value to an object of the specified class (if
      * possible).</p>
      *
      * @param value Value to be converted (may be null)
      * @param type Class of the value to be converted to
      * @return The converted value
      *
      * @exception ConversionException if thrown by an underlying Converter
      */
     protected Object convert(Object value, Class type)
     {
         Converter converter = ConvertUtils.lookup(type);
         Object result;
         if (converter != null)
         {
             result = converter.convert(type, value);
         }
         else
         {
             result = value;
         }
         return result;
     }
 
     /**
      * Converts the value contained within the parameter to the type which Hibernate expects.
      *
      * @param entityType the class of the entity for which the search is being performed.
      * @param parameter the parameter from which to get the value.
      * @return the appropriate value.
      */
     private Object getValue(Class type, final SearchParameter parameter)
     {
         try
         {
             Object value = parameter.getValue();
             // - don't try to convert null values or classes
             if (value != null && !value.getClass().equals(Class.class))
             {
                 Class propertyType = type;
                 for (final StringTokenizer tokenizer = new StringTokenizer(parameter.getName(), PERIOD); tokenizer.hasMoreTokens();)
                 {
                     final String token = tokenizer.nextToken().trim();
                     Class lastType = type;
                     type = CriteriaSearchProperties.getPropertyType(type, token);
                     if (!tokenizer.hasMoreTokens())
                     {
                         break;
                     }
                     if (type == null)
                     {
                         throw new RuntimeException("No accessible property named '" + token + "', exists on: " + lastType.getName());
                     }
                     propertyType = type;
                 }
                 final Object object = propertyType.newInstance();
                 final String name = parameter.getName().replaceAll(".*\\" + PERIOD, "");
                 try
                 {
                     value = convert(value, PropertyUtils.getPropertyType(object, name));
                 }
                 catch (final NoSuchMethodException noSuchMethodException)
                 {
                     throw new RuntimeException("No accessible property named '" + name + "', exists on: " + propertyType.getName());
                 }
             }
             return value;
         }
         catch (final Exception exception)
         {
             throw new RuntimeException(exception);
         }
     }
 
     /**
      * A beanutils converter that converts Calendar objects to Date instances.
      */
     private static final class DateConverter
         implements Converter
     {
         public DateConverter()
         {
             // Empty block comment
         }
 
         /**
          * @see org.apache.commons.beanutils.Converter#convert(Class, Object)
          */
         public Object convert(
             Class type,
             Object value)
             throws ConversionException
         {
             if (value != null)
             {
                 try
                 {
                     if (value instanceof Calendar)
                     {
                         value = ((Calendar)value).getTime();
                     }
                 }
                 catch (Exception ex)
                 {
                     throw new ConversionException(ex);
                 }
             }
             return value;
         }
     }
 
     /**
      * A beanutils converter that converts Date objects to Calendar instances.
      */
     private static final class CalendarConverter
         implements Converter
     {
         public CalendarConverter()
         {
             // Empty block comment
         }
 
         /**
          * @see org.apache.commons.beanutils.Converter#convert(Class, Object)
          */
         public Object convert(
             Class type,
             Object value)
             throws ConversionException
         {
             if (value != null)
             {
                 try
                 {
                     if (value instanceof Date)
                     {
                         Calendar calendar = Calendar.getInstance();
                         calendar.setTime((Date)value);
                         value = calendar;
                     }
                 }
                 catch (Exception ex)
                 {
                     throw new ConversionException(ex);
                 }
             }
             return value;
         }
     }
 }