/**
    * Copyright 2005-2014 The Kuali Foundation
    *
    * Licensed under the Educational Community License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    * http://www.opensource.org/licenses/ecl2.php
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.kuali.rice.kew.rule.dao.impl;
  
  import org.kuali.rice.core.api.criteria.Predicate;
  import org.kuali.rice.core.api.criteria.QueryByCriteria;
  import org.kuali.rice.core.api.criteria.QueryResults;
  import org.kuali.rice.kew.rule.bo.RuleAttribute;
  import org.kuali.rice.kew.rule.dao.RuleAttributeDAO;
  import org.kuali.rice.krad.data.DataObjectService;
  import org.springframework.beans.factory.annotation.Required;
  
  import javax.persistence.EntityManager;
  import javax.persistence.PersistenceContext;
  import java.util.ArrayList;
  import java.util.List;
  
  import static org.kuali.rice.core.api.criteria.PredicateFactory.equal;
  import static org.kuali.rice.core.api.criteria.PredicateFactory.likeIgnoreCase;
  
  public class RuleAttributeDAOJpa implements RuleAttributeDAO {
  
      private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(RuleAttributeDAOJpa.class);
  
      @PersistenceContext(unitName="kew")
      private EntityManager entityManager;
      private DataObjectService dataObjectService;
  
  
  	public void save(RuleAttribute ruleAttribute) {
          getDataObjectService().save(ruleAttribute);
      }
  
      public void delete(String ruleAttributeId) {
          RuleAttribute ruleAttribute = findByRuleAttributeId(ruleAttributeId);
          getDataObjectService().delete(ruleAttribute);
      }
  
      public RuleAttribute findByRuleAttributeId(String ruleAttributeId) {
          return getDataObjectService().find(RuleAttribute.class,ruleAttributeId);
      }
  
      public List<RuleAttribute> findByRuleAttribute(RuleAttribute ruleAttribute) {
          QueryByCriteria.Builder builder =
                      QueryByCriteria.Builder.create();
  
          List<Predicate> predicates = new ArrayList<Predicate>();
          if (ruleAttribute.getName() != null) {
              predicates.add(likeIgnoreCase("name",ruleAttribute.getName()));
          }
  
          if (ruleAttribute.getResourceDescriptor() != null) {
              predicates.add(likeIgnoreCase("resourceDescriptor",ruleAttribute.getResourceDescriptor()));
          }
          if (ruleAttribute.getType() != null) {
              predicates.add(likeIgnoreCase("type",ruleAttribute.getType()));
          }
          Predicate[] preds = predicates.toArray(new Predicate[predicates.size()]);
          builder.setPredicates(preds);
          QueryResults<RuleAttribute> results = getDataObjectService().findMatching(RuleAttribute.class, builder.build());
          return results.getResults();
  
      }
  
      public List<RuleAttribute> getAllRuleAttributes() {
          QueryByCriteria.Builder builder =
                  QueryByCriteria.Builder.create();
          QueryResults<RuleAttribute> results = getDataObjectService().findMatching(RuleAttribute.class, builder.build());
          return results.getResults();
      }
  
      public RuleAttribute findByName(String name) {
          LOG.debug("findByName name=" + name);
          QueryByCriteria.Builder builder =
                  QueryByCriteria.Builder.create();
          builder.setPredicates(equal("name",name));
          QueryResults<RuleAttribute> ruleAttributeQueryResults = getDataObjectService().
                  findMatching(RuleAttribute.class, builder.build());
          if(ruleAttributeQueryResults != null && ruleAttributeQueryResults.getResults().size() > 0){
              return ruleAttributeQueryResults.getResults().get(0);
          }
          return null;
      }
  
      public List<RuleAttribute> findByClassName(String classname) {
          LOG.debug("findByClassName classname=" + classname);
 
         QueryByCriteria.Builder builder =
                 QueryByCriteria.Builder.create();
         builder.setPredicates(equal("resourceDescriptor",classname));
         QueryResults<RuleAttribute> ruleAttributeQueryResults = getDataObjectService().
                 findMatching(RuleAttribute.class,builder.build());
         return ruleAttributeQueryResults.getResults();
 
     }
 
 
     public DataObjectService getDataObjectService() {
         return dataObjectService;
     }
 
     @Required
     public void setDataObjectService(DataObjectService dataObjectService) {
         this.dataObjectService = dataObjectService;
     }
 
 
     /**
      * @return the entityManager
      */
     public EntityManager getEntityManager() {
         return this.entityManager;
     }
 
     /**
      * @param entityManager the entityManager to set
      */
     public void setEntityManager(EntityManager entityManager) {
         this.entityManager = entityManager;
     }
 
 }