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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.impl.cfg.ProcessEngineConfigurationImpl;
import org.activiti.engine.impl.persistence.entity.data.DataManager;
import org.activiti.engine.impl.persistence.entity.data.ProcessDefinitionInfoDataManager;


/**

 */
public class ProcessDefinitionInfoEntityManagerImpl extends 
    AbstractEntityManager implements ProcessDefinitionInfoEntityManager {

  protected ProcessDefinitionInfoDataManager processDefinitionInfoDataManager;
  
  public ProcessDefinitionInfoEntityManagerImpl(ProcessEngineConfigurationImpl processEngineConfiguration, 
      ProcessDefinitionInfoDataManager processDefinitionInfoDataManager) {
    
    super(processEngineConfiguration);
    this.processDefinitionInfoDataManager = processDefinitionInfoDataManager;
  }
  
  @Override
  protected DataManager getDataManager() {
    return processDefinitionInfoDataManager;
  }
  
  public void insertProcessDefinitionInfo(ProcessDefinitionInfoEntity processDefinitionInfo) {
    insert(processDefinitionInfo);
  }
  
  public void updateProcessDefinitionInfo(ProcessDefinitionInfoEntity updatedProcessDefinitionInfo) {
    update(updatedProcessDefinitionInfo, true);
  }

  public void deleteProcessDefinitionInfo(String processDefinitionId) {
    ProcessDefinitionInfoEntity processDefinitionInfo = findProcessDefinitionInfoByProcessDefinitionId(processDefinitionId);
    if (processDefinitionInfo != null) {
      delete(processDefinitionInfo);
      deleteInfoJson(processDefinitionInfo);
    }
  }
  
  public void updateInfoJson(String id, byte[] json) {
    ProcessDefinitionInfoEntity processDefinitionInfo = findById(id);
    if (processDefinitionInfo != null) {
      ByteArrayRef ref = new ByteArrayRef(processDefinitionInfo.getInfoJsonId());
      ref.setValue("json", json);
      
      if (processDefinitionInfo.getInfoJsonId() == null) {
        processDefinitionInfo.setInfoJsonId(ref.getId());
        updateProcessDefinitionInfo(processDefinitionInfo);
      }
    }
  }
  
  public void deleteInfoJson(ProcessDefinitionInfoEntity processDefinitionInfo) {
    if (processDefinitionInfo.getInfoJsonId() != null) {
      ByteArrayRef ref = new ByteArrayRef(processDefinitionInfo.getInfoJsonId());
      ref.delete();
    }
  }
  
  public ProcessDefinitionInfoEntity findProcessDefinitionInfoByProcessDefinitionId(String processDefinitionId) {
    return processDefinitionInfoDataManager.findProcessDefinitionInfoByProcessDefinitionId(processDefinitionId);
  }
  
  public byte[] findInfoJsonById(String infoJsonId) {
    ByteArrayRef ref = new ByteArrayRef(infoJsonId);
    return ref.getBytes();
  }
}