/**
    * Copyright 2011 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.osedu.org/licenses/ECL-2.0
    *
    * 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.mobility.push.dao;
  
  import java.util.List;
  
  import javax.persistence.EntityManager;
  import javax.persistence.PersistenceContext;
  import javax.persistence.Query;
  
  import org.kuali.mobility.push.entity.PushDeviceTuple;
  import org.springframework.stereotype.Repository;
  
  @Repository
  public class PushDeviceTupleDaoImpl implements PushDeviceTupleDao {
  	
  	private static org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(DeviceDaoImpl.class);		
  	private String ME = this.getClass().getName();	
  
  	@PersistenceContext
      private EntityManager entityManager;
  	
      public PushDeviceTupleDaoImpl(){}
  	
      @SuppressWarnings("unchecked")
  	public void markTupleAsSent(PushDeviceTuple tuple){
  		tuple.setSent(true);
  		this.saveTuple(tuple);
  	}
  	
      @SuppressWarnings("unchecked")    
  	public void saveTuple(PushDeviceTuple tuple){
  		if(tuple == null){
  			return;
  		}
  		if(tuple.getTupleId() == null){
  			entityManager.persist(tuple);
  		}else{
  			entityManager.merge(tuple);
  		}
  	}
  
      
      @SuppressWarnings("unchecked")
  	public List<PushDeviceTuple> findUnsentTuples(){
      	Query query = entityManager.createQuery("select t from PushDeviceTuple t where t.sent = 'false'");
          return query.getResultList();	
  	}
      
      public EntityManager getEntityManager() {
          return entityManager;
      }
  
      public void setEntityManager(EntityManager entityManager) {
          this.entityManager = entityManager;
      }
  }