/**

  * Copyright 2010 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.student.r2.common.entity;

 import java.util.Date;

 import javax.persistence.Column;

 import javax.persistence.Embeddable;

 import javax.persistence.MappedSuperclass;

 import javax.persistence.Temporal;

 import javax.persistence.TemporalType;

 import org.kuali.student.common.util.security.SecurityUtils;

 import org.kuali.student.r2.common.dto.MetaInfo;

 import org.kuali.student.r2.common.infc.HasMeta;

 import org.kuali.student.r2.common.infc.Meta;

 @MappedSuperclass

 @Embeddable

 public abstract class MetaEntity extends BaseVersionEntity {

     // Hibernate will not allow @Version in @Embeddable for some annoying reason

     // @Version

     // private long versionInd;

     @Temporal(TemporalType.TIMESTAMP)

     @Column(updatable = false)

     private Date createTime;

     @Column(updatable = false)

     private String createId;

     @Temporal(TemporalType.TIMESTAMP)

     private Date updateTime;

     private String updateId;

     // public long getVersionInd() {

     // return versionInd;

     // }

     // public void setVersionInd(long versionInd) {

     // this.versionInd = versionInd;

     // }

     protected MetaEntity() {

     }

     // TODO - need a BaseEntity(HasMeta) to deal w/ version, id, and other

     // fields

     public MetaEntity(HasMeta hasMeta) {

         if (null != hasMeta) {

             Meta meta = hasMeta.getMeta();

             if (null != meta) {

                 this.setCreateTime(meta.getCreateTime());

                 this.setCreateId(meta.getCreateId());

                 this.setUpdateTime(meta.getUpdateTime());

                 this.setUpdateId(meta.getUpdateId());

                 this.setVersionNumber(null != meta.getVersionInd() ? Long.valueOf(meta.getVersionInd()) : null);

             }

         }

     }

     public Date getCreateTime() {

         return createTime;

     }

     public void setCreateTime(Date createTime) {

         this.createTime = createTime;

     }

     public String getCreateId() {

         return createId;

     }

     public void setCreateId(String createId) {

         this.createId = createId;

     }

     public Date getUpdateTime() {

         return updateTime;

     }

     public void setUpdateTime(Date updateTime) {

         this.updateTime = updateTime;

     }

     public String getUpdateId() {

         return updateId;

     }

     public void setUpdateId(String updateId) {

         this.updateId = updateId;

     }

     @Override

     protected void onPrePersist() {

         super.onPrePersist();

         if (createTime == null) {

             setCreateTime(new Date());

         }

         if (updateTime == null) {

             setUpdateTime(new Date());

         }

         if (createId == null) {

             setCreateId(SecurityUtils.getCurrentUserId());

         }

         if (updateId == null) {

             setUpdateId(SecurityUtils.getCurrentUserId());

         }

     }

     @Override

     protected void onPreUpdate() {

         super.onPreUpdate();

         // This code should not be here, but hibernate is calling update

         // callback instead of prepersit if the id is not null.        

         if (createTime == null) {

             setCreateTime(new Date());

         }

         if (updateTime == null) {

             setUpdateTime(new Date());

         }

         if (createId == null) {

             setCreateId(SecurityUtils.getCurrentUserId());

         }

         if (updateId == null) {

             setUpdateId(SecurityUtils.getCurrentUserId());

         }

     }

     public MetaInfo toDTO() {

         MetaInfo miInfo = new MetaInfo();

         miInfo.setCreateId(getCreateId());

         miInfo.setCreateTime(getCreateTime());

         miInfo.setUpdateId(getUpdateId());

         miInfo.setUpdateTime(getUpdateTime());

         if (null != getVersionNumber()) {

             miInfo.setVersionInd(new Long(getVersionNumber()).toString());

         }

         return miInfo;

     }

 }