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.cmd;
  
  import java.io.Serializable;
  import java.util.List;
  import org.activiti.engine.impl.interceptor.Command;
  import org.activiti.engine.impl.interceptor.CommandContext;
  import org.activiti.engine.impl.persistence.entity.IdentityLinkEntity;
  import org.activiti.engine.impl.persistence.entity.TaskEntity;
  import org.activiti.engine.task.IdentityLink;
  import org.activiti.engine.task.IdentityLinkType;
  
  /**
  
  
   */
  public class GetIdentityLinksForTaskCmd implements Command<List<IdentityLink>>, Serializable {
  
      private static final long serialVersionUID = 1L;
      protected String taskId;
  
      public GetIdentityLinksForTaskCmd(String taskId) {
          this.taskId = taskId;
      }
  
      @SuppressWarnings({ "unchecked", "rawtypes" })
      public List<IdentityLink> execute(CommandContext commandContext) {
          TaskEntity task = commandContext.getTaskEntityManager().findById(taskId);
  
          List<IdentityLink> identityLinks = (List) task.getIdentityLinks();
  
          // assignee is not part of identity links in the db.
          // so if there is one, we add it here.
          // @Tom: we discussed this long on skype and you agreed ;-)
          // an assignee *is* an identityLink, and so must it be reflected in the
          // API
          //
          // Note: we cant move this code to the TaskEntity (which would be
          // cleaner),
          // since the task.delete cascaded to all associated identityLinks
          // and of course this leads to exception while trying to delete a
          // non-existing identityLink
          if (task.getAssignee() != null) {
              IdentityLinkEntity identityLink = commandContext.getIdentityLinkEntityManager().create();
              identityLink.setUserId(task.getAssignee());
              identityLink.setType(IdentityLinkType.ASSIGNEE);
              identityLink.setTaskId(task.getId());
              identityLinks.add(identityLink);
          }
          if (task.getOwner() != null) {
              IdentityLinkEntity identityLink = commandContext.getIdentityLinkEntityManager().create();
              identityLink.setUserId(task.getOwner());
              identityLink.setTaskId(task.getId());
              identityLink.setType(IdentityLinkType.OWNER);
              identityLinks.add(identityLink);
          }
  
          return (List) task.getIdentityLinks();
      }
  }
  