/*

  * Copyright 2005-2008 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.actionrequest.dao.impl;

 import org.apache.commons.lang.StringUtils;

 import org.kuali.rice.core.util.OrmUtils;

 import org.kuali.rice.kew.actionrequest.ActionRequestValue;

 import org.kuali.rice.kew.actionrequest.dao.ActionRequestDAO;

 import org.kuali.rice.kew.util.KEWConstants;

 import org.kuali.rice.kim.bo.Group;

 import javax.persistence.EntityManager;

 import javax.persistence.PersistenceContext;

 import javax.persistence.Query;

 import java.io.Serializable;

 import java.sql.Timestamp;

 import java.util.Collection;

 import java.util.Collections;

 import java.util.List;

 /**

  * This is a description of what this class does - sgibson don't forget to fill this in.

  * 

  * @author Kuali Rice Team (rice.collab@kuali.org)

  */

 public class ActionRequestDAOJpaImpl implements ActionRequestDAO {

     @PersistenceContext(name = "kew-unit")

     private EntityManager entityManager;

     /**

          * @return the entityManager

          */

         public EntityManager getEntityManager() {

                 return this.entityManager;

         }

         /**

          * @param entityManager the entityManager to set

          */

         public void setEntityManager(EntityManager entityManager) {

                 this.entityManager = entityManager;

         }

         public void delete(Long actionRequestId) {

         ActionRequestValue actionRequestValue = (ActionRequestValue) entityManager.find(ActionRequestValue.class, actionRequestId);

         entityManager.remove(actionRequestValue);

     }

     public void deleteByRouteHeaderId(Long routeHeaderId) {

         // FIXME should be jpa bulk update?

         Query query = entityManager.createNamedQuery("ActionRequestValue.FindByRouteHeaderId");

         query.setParameter("routeHeaderId", routeHeaderId);

         List<ActionRequestValue> actionRequestValues = (List<ActionRequestValue>) query.getSingleResult();

         for(ActionRequestValue arv : actionRequestValues) {

             entityManager.remove(arv);

         }

     }

     public boolean doesDocumentHaveUserRequest(String principalId, Long documentId) {

         Query query = entityManager.createNamedQuery("ActionRequestValue.GetUserRequestCount");

         query.setParameter("principalId", principalId);

         query.setParameter("routeHeaderId", documentId);

         query.setParameter("recipientTypeCd", KEWConstants.ACTION_REQUEST_USER_RECIPIENT_CD);

         query.setParameter("currentIndicator", Boolean.TRUE);

         return ((Long)query.getSingleResult()) > 0;

     }

     public List<?> findActivatedByGroup(Group group) {

         Query query = entityManager.createNamedQuery("ActionRequestValue.FindActivatedByGroup");

         query.setParameter("groupId", group.getGroupId());

         query.setParameter("currentIndicator", Boolean.TRUE);

         query.setParameter("status", KEWConstants.ACTION_REQUEST_ACTIVATED);

         return query.getResultList();

     }

     public List findAllByDocId(Long routeHeaderId) {

         Query query = entityManager.createNamedQuery("ActionRequestValue.FindAllByDocId");

         query.setParameter("routeHeaderId", routeHeaderId);

         query.setParameter("currentIndicator", Boolean.TRUE);

         return query.getResultList();

     }

     public List findAllPendingByDocId(Long routeHeaderId) {

         Query query = entityManager.createNamedQuery("ActionRequestValue.FindAllPendingByDocId");

         query.setParameter("routeHeaderId", routeHeaderId);

         query.setParameter("currentIndicator", Boolean.TRUE);

         return query.getResultList();

     }

     @SuppressWarnings("unchecked")

     public List<ActionRequestValue> findAllRootByDocId(Long routeHeaderId) {

         Query query = entityManager.createNamedQuery("ActionRequestValue.FindAllRootByDocId");

         query.setParameter("routeHeaderId", routeHeaderId);

         query.setParameter("currentIndicator", Boolean.TRUE);

         return (List<ActionRequestValue>) query.getResultList();

     }

     public List findByRouteHeaderIdIgnoreCurrentInd(Long routeHeaderId) {

         Query query = entityManager.createNamedQuery("ActionRequestValue.FindByRouteHeaderId");

         query.setParameter("routeHeaderId", routeHeaderId);

         return query.getResultList();

     }

     @SuppressWarnings("unchecked")

     public List<ActionRequestValue> findByStatusAndDocId(String statusCd, Long routeHeaderId) {

         Query query = entityManager.createNamedQuery("ActionRequestValue.FindByStatusAndDocId");

         query.setParameter("routeHeaderId", routeHeaderId);

         query.setParameter("status", statusCd);

         query.setParameter("currentIndicator", Boolean.TRUE);

         return (List<ActionRequestValue>)query.getResultList();

     }

     public List findPendingByActionRequestedAndDocId(String actionRequestedCd, Long routeHeaderId) {

         Query query = entityManager.createNamedQuery("ActionRequestValue.FindPendingByActionRequestedAndDocId");

         query.setParameter("routeHeaderId", routeHeaderId);

         query.setParameter("currentIndicator", Boolean.TRUE);

         query.setParameter("actionRequested", actionRequestedCd);

         return query.getResultList();

     }

     public List findPendingByDocIdAtOrBelowRouteLevel(Long routeHeaderId, Integer routeLevel) {

         Query query = entityManager.createNamedQuery("ActionRequestValue.FindPendingByDocIdAtOrBelowRouteLevel");

         query.setParameter("routeHeaderId", routeHeaderId);

         query.setParameter("currentIndicator", Boolean.TRUE);

         query.setParameter("routeLevel", routeLevel);

         query.setParameter("status", KEWConstants.ACTION_REQUEST_DONE_STATE);

         return query.getResultList();

     }

     public List findPendingByResponsibilityIds(Collection responsibilityIds) {

         if (responsibilityIds == null || responsibilityIds.size() == 0)

             return Collections.emptyList();

         Query query = entityManager.createNamedQuery("ActionRequestValue.FindPendingByDocIdAtOrBelowRouteLevel");

         query.setParameter("responsibilityIds", responsibilityIds);

         return query.getResultList();

     }

     public List findPendingRootRequestsByDocIdAtOrBelowRouteLevel(Long routeHeaderId, Integer routeLevel) {

         Query query = entityManager.createNamedQuery("ActionRequestValue.FindPendingRootRequestsByDocIdAtOrBelowRouteLevel");

         query.setParameter("routeHeaderId", routeHeaderId);

         query.setParameter("currentIndicator", Boolean.TRUE);

         query.setParameter("status", KEWConstants.ACTION_REQUEST_DONE_STATE);

         query.setParameter("routeLevel", routeLevel);

         return query.getResultList();

     }

     public List findPendingRootRequestsByDocIdAtRouteLevel(Long routeHeaderId, Integer routeLevel) {

         Query query = entityManager.createNamedQuery("ActionRequestValue.FindPendingRootRequestsByDocIdAtRouteLevel");

         query.setParameter("routeHeaderId", routeHeaderId);

         query.setParameter("currentIndicator", Boolean.TRUE);

         query.setParameter("status", KEWConstants.ACTION_REQUEST_DONE_STATE);

         query.setParameter("routeLevel", routeLevel);

         return query.getResultList();

     }

     public List findPendingRootRequestsByDocIdAtRouteNode(Long routeHeaderId, Long nodeInstanceId) {

         Query query = entityManager.createNamedQuery("ActionRequestValue.FindPendingRootRequestsByDocIdAtRouteNode");

         query.setParameter("routeHeaderId", routeHeaderId);

         query.setParameter("currentIndicator", Boolean.TRUE);

         query.setParameter("routeNodeInstanceId", nodeInstanceId);

         return query.getResultList();

     }

     public List findPendingRootRequestsByDocumentType(Long documentTypeId) {

         Query query = entityManager.createNamedQuery("ActionRequestValue.FindPendingRootRequestsByDocumentType");

         query.setParameter("documentTypeId", documentTypeId);

         query.setParameter("currentIndicator", Boolean.TRUE);

         return query.getResultList();

     }

     public List findRootRequestsByDocIdAtRouteNode(Long documentId, Long nodeInstanceId) {

         Query query = entityManager.createNamedQuery("ActionRequestValue.FindRootRequestsByDocIdAtRouteNode");

         query.setParameter("routeHeaderId", documentId);

         query.setParameter("currentIndicator", Boolean.TRUE);

         query.setParameter("routeNodeInstanceId", nodeInstanceId);

         return query.getResultList();

     }

     public ActionRequestValue getActionRequestByActionRequestId(Long actionRequestId) {

         return entityManager.find(ActionRequestValue.class, actionRequestId);

     }

     @SuppressWarnings("unchecked")

     public List<String> getRequestGroupIds(Long documentId) {

         Query query = entityManager.createNamedQuery("ActionRequestValue.GetRequestGroupIds");

         query.setParameter("routeHeaderId", documentId);

         query.setParameter("currentIndicator", Boolean.TRUE);

         query.setParameter("recipientTypeCd", KEWConstants.ACTION_REQUEST_GROUP_RECIPIENT_CD);

         return query.getResultList();

     }

     public void saveActionRequest(ActionRequestValue actionRequest) {

         if ( actionRequest.getAnnotation() != null && actionRequest.getAnnotation().length() > 2000 ) {

                 actionRequest.setAnnotation( StringUtils.abbreviate(actionRequest.getAnnotation(), 2000) );

         }

             if(actionRequest.getActionRequestId() == null) {

                 loadDefaultValues(actionRequest);

                 entityManager.persist(actionRequest);

         }else{

             OrmUtils.merge(entityManager, actionRequest);

         }

     }

     private void loadDefaultValues(ActionRequestValue actionRequest) {

         checkNull(actionRequest.getActionRequested(), "action requested");

         checkNull(actionRequest.getResponsibilityId(), "responsibility ID");

         checkNull(actionRequest.getRouteLevel(), "route level");

         checkNull(actionRequest.getDocVersion(), "doc version");

         if (actionRequest.getForceAction() == null) {

             actionRequest.setForceAction(Boolean.FALSE);

         }

         if (actionRequest.getStatus() == null) {

             actionRequest.setStatus(KEWConstants.ACTION_REQUEST_INITIALIZED);

         }

         if (actionRequest.getPriority() == null) {

             actionRequest.setPriority(KEWConstants.ACTION_REQUEST_DEFAULT_PRIORITY);

         }

         if (actionRequest.getCurrentIndicator() == null) {

             actionRequest.setCurrentIndicator(true);

         }

         actionRequest.setCreateDate(new Timestamp(System.currentTimeMillis()));

     }

     //TODO Runtime might not be the right thing to do here...

     private void checkNull(Serializable value, String valueName) throws RuntimeException {

         if (value == null) {

             throw new RuntimeException("Null value for " + valueName);

         }

     }

         public List findActivatedByGroup(String groupId) {

                 Query query = entityManager.createNamedQuery("ActionRequestValue.FindByStatusAndGroupId");

         query.setParameter("status", KEWConstants.ACTION_REQUEST_ACTIVATED);

         query.setParameter("currentIndicator", Boolean.TRUE);

         query.setParameter("groupId", groupId);

         return query.getResultList();

         }

 }