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/* Licensed under the Apache 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.apache.org/licenses/LICENSE-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.activiti.engine.impl.persistence.entity;

import org.activiti.engine.history.HistoricDetail;
import org.activiti.engine.impl.HistoricDetailQueryImpl;
import org.activiti.engine.impl.Page;
import org.activiti.engine.impl.cfg.ProcessEngineConfigurationImpl;
import org.activiti.engine.impl.history.HistoryLevel;
import org.activiti.engine.impl.persistence.entity.data.DataManager;
import org.activiti.engine.impl.persistence.entity.data.HistoricDetailDataManager;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

public class HistoricDetailEntityManagerImpl extends AbstractEntityManager implements HistoricDetailEntityManager {
  
  protected HistoricDetailDataManager historicDetailDataManager;
  
  public HistoricDetailEntityManagerImpl(ProcessEngineConfigurationImpl processEngineConfiguration, HistoricDetailDataManager historicDetailDataManager) {
    super(processEngineConfiguration);
    this.historicDetailDataManager = historicDetailDataManager;
  }
  
  @Override
  protected DataManager getDataManager() {
    return historicDetailDataManager;
  }
  
  @Override
  public HistoricDetailVariableInstanceUpdateEntity copyAndInsertHistoricDetailVariableInstanceUpdateEntity(VariableInstanceEntity variableInstance) {
    HistoricDetailVariableInstanceUpdateEntity historicVariableUpdate = historicDetailDataManager.createHistoricDetailVariableInstanceUpdate();
    historicVariableUpdate.setProcessInstanceId(variableInstance.getProcessInstanceId());
    historicVariableUpdate.setExecutionId(variableInstance.getExecutionId());
    historicVariableUpdate.setTaskId(variableInstance.getTaskId());
    historicVariableUpdate.setTime(getClock().getCurrentTime());
    historicVariableUpdate.setRevision(variableInstance.getRevision());
    historicVariableUpdate.setName(variableInstance.getName());
    historicVariableUpdate.setVariableType(variableInstance.getType());
    historicVariableUpdate.setTextValue(variableInstance.getTextValue());
    historicVariableUpdate.setTextValue2(variableInstance.getTextValue2());
    historicVariableUpdate.setDoubleValue(variableInstance.getDoubleValue());
    historicVariableUpdate.setLongValue(variableInstance.getLongValue());

    if (variableInstance.getBytes() != null) {
      historicVariableUpdate.setBytes(variableInstance.getBytes());
    }

    insert(historicVariableUpdate);
    return historicVariableUpdate;
  }
  
  @Override
  public void delete(HistoricDetailEntity entity, boolean fireDeleteEvent) {
    super.delete(entity, fireDeleteEvent);
    
    if (entity instanceof HistoricDetailVariableInstanceUpdateEntity) {
      HistoricDetailVariableInstanceUpdateEntity historicDetailVariableInstanceUpdateEntity = ((HistoricDetailVariableInstanceUpdateEntity) entity);
      if (historicDetailVariableInstanceUpdateEntity.getByteArrayRef() != null) {
        historicDetailVariableInstanceUpdateEntity.getByteArrayRef().delete();
      }
    }
  }

  @Override
  public void deleteHistoricDetailsByProcessInstanceId(String historicProcessInstanceId) {
    if (getHistoryManager().isHistoryLevelAtLeast(HistoryLevel.AUDIT)) {
//      List historicDetails = historicDetailDataManager.findHistoricDetailsByProcessInstanceId(historicProcessInstanceId);
      List historicDetails = new ArrayList<>();

      for (HistoricDetailEntity historicDetail : historicDetails) {
        delete(historicDetail);
      }
    }
  }

  @Override
  public long findHistoricDetailCountByQueryCriteria(HistoricDetailQueryImpl historicVariableUpdateQuery) {
    return historicDetailDataManager.findHistoricDetailCountByQueryCriteria(historicVariableUpdateQuery);
  }

  @Override
  public List findHistoricDetailsByQueryCriteria(HistoricDetailQueryImpl historicVariableUpdateQuery, Page page) {
    return historicDetailDataManager.findHistoricDetailsByQueryCriteria(historicVariableUpdateQuery, page);
  }

  @Override
  public void deleteHistoricDetailsByTaskId(String taskId) {
    if (getHistoryManager().isHistoryLevelAtLeast(HistoryLevel.FULL)) {
      List details = historicDetailDataManager.findHistoricDetailsByTaskId(taskId);
      for (HistoricDetail detail : details) {
        delete((HistoricDetailEntity) detail);
      }
    }
  }

  @Override
  public List findHistoricDetailsByNativeQuery(Map parameterMap, int firstResult, int maxResults) {
    return historicDetailDataManager.findHistoricDetailsByNativeQuery(parameterMap, firstResult, maxResults);
  }

  @Override
  public long findHistoricDetailCountByNativeQuery(Map parameterMap) {
    return historicDetailDataManager.findHistoricDetailCountByNativeQuery(parameterMap);
  }

  public HistoricDetailDataManager getHistoricDetailDataManager() {
    return historicDetailDataManager;
  }

  public void setHistoricDetailDataManager(HistoricDetailDataManager historicDetailDataManager) {
    this.historicDetailDataManager = historicDetailDataManager;
  }
  
}