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.test.api.task;
  
  import java.util.HashSet;
  import java.util.Set;
  import org.activiti.engine.delegate.DelegateTask;
  import org.activiti.engine.delegate.TaskListener;
  import org.activiti.engine.task.IdentityLink;
  
  public class DelegateTaskTestTaskListener implements TaskListener {
  
      public static final String VARNAME_CANDIDATE_USERS = "candidateUsers";
      public static final String VARNAME_CANDIDATE_GROUPS = "candidateGroups";
  
      public void notify(DelegateTask delegateTask) {
          Set<IdentityLink> candidates = delegateTask.getCandidates();
          Set<String> candidateUsers = new HashSet<String>();
          Set<String> candidateGroups = new HashSet<String>();
          for (IdentityLink candidate : candidates) {
              if (candidate.getUserId() != null) {
                  candidateUsers.add(candidate.getUserId());
              } else if (candidate.getGroupId() != null) {
                  candidateGroups.add(candidate.getGroupId());
              }
          }
          delegateTask.setVariable(VARNAME_CANDIDATE_USERS, candidateUsers);
          delegateTask.setVariable(VARNAME_CANDIDATE_GROUPS, candidateGroups);
      }
  }
  