content: /*
   * Copyright 2010-2025 Hyland Software, Inc. and its affiliates.
   *
   * 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 java.util.List;
  import org.activiti.engine.ActivitiException;
  import org.activiti.engine.api.internal.Internal;
  import org.activiti.engine.delegate.event.ActivitiEventType;
  import org.activiti.engine.delegate.event.impl.ActivitiEventBuilder;
  import org.activiti.engine.impl.cfg.ProcessEngineConfigurationImpl;
  import org.activiti.engine.impl.persistence.entity.data.AttachmentDataManager;
  import org.activiti.engine.impl.persistence.entity.data.DataManager;
  import org.activiti.engine.task.Attachment;
  import org.activiti.engine.task.Task;
  
  /**
  
  
   */
  @Internal
  @Deprecated
  public class AttachmentEntityManagerImpl
      extends AbstractEntityManager<AttachmentEntity>
      implements AttachmentEntityManager {
  
      protected AttachmentDataManager attachmentDataManager;
  
      public AttachmentEntityManagerImpl(
          ProcessEngineConfigurationImpl processEngineConfiguration,
          AttachmentDataManager attachmentDataManager
      ) {
          super(processEngineConfiguration);
          this.attachmentDataManager = attachmentDataManager;
      }
  
      @Override
      protected DataManager<AttachmentEntity> getDataManager() {
          return attachmentDataManager;
      }
  
      @Override
      public List<AttachmentEntity> findAttachmentsByProcessInstanceId(String processInstanceId) {
          checkHistoryEnabled();
          return attachmentDataManager.findAttachmentsByProcessInstanceId(processInstanceId);
      }
  
      @Override
      public List<AttachmentEntity> findAttachmentsByTaskId(String taskId) {
          checkHistoryEnabled();
          return attachmentDataManager.findAttachmentsByTaskId(taskId);
      }
  
      @Override
      public void deleteAttachmentsByTaskId(String taskId) {
          checkHistoryEnabled();
          List<AttachmentEntity> attachments = findAttachmentsByTaskId(taskId);
          boolean dispatchEvents = getEventDispatcher().isEnabled();
  
          String processInstanceId = null;
          String processDefinitionId = null;
          String executionId = null;
  
          if (dispatchEvents && attachments != null && !attachments.isEmpty()) {
              // Forced to fetch the task to get hold of the process definition
              // for event-dispatching, if available
              Task task = getTaskEntityManager().findById(taskId);
              if (task != null) {
                  processDefinitionId = task.getProcessDefinitionId();
                  processInstanceId = task.getProcessInstanceId();
                  executionId = task.getExecutionId();
              }
          }
  
          for (Attachment attachment : attachments) {
              String contentId = attachment.getContentId();
              if (contentId != null) {
                  getByteArrayEntityManager().deleteByteArrayById(contentId);
              }
  
              attachmentDataManager.delete((AttachmentEntity) attachment);
  
              if (dispatchEvents) {
                  getEventDispatcher().dispatchEvent(
                      ActivitiEventBuilder.createEntityEvent(
                          ActivitiEventType.ENTITY_DELETED,
                          attachment,
                          executionId,
                          processInstanceId,
                          processDefinitionId
                      )
                  );
              }
          }
      }
  
      protected void checkHistoryEnabled() {
          if (!getHistoryManager().isHistoryEnabled()) {
              throw new ActivitiException("In order to use attachments, history should be enabled");
          }
      }
  
      public AttachmentDataManager getAttachmentDataManager() {
          return attachmentDataManager;
      }
  
      public void setAttachmentDataManager(AttachmentDataManager attachmentDataManager) {
          this.attachmentDataManager = attachmentDataManager;
      }
  }
  