content: /*
   * Copyright 2017-2025 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.cloud.services.query.events.handlers;
  
  import jakarta.persistence.EntityManager;
  import org.activiti.api.process.model.events.ProcessCandidateStarterGroupEvent;
  import org.activiti.cloud.api.model.shared.events.CloudRuntimeEvent;
  import org.activiti.cloud.api.process.model.events.CloudProcessCandidateStarterGroupAddedEvent;
  import org.activiti.cloud.services.query.model.ProcessCandidateStarterGroupEntity;
  import org.activiti.cloud.services.query.model.ProcessCandidateStarterGroupId;
  import org.activiti.cloud.services.query.model.QueryException;
  
  public class ProcessCandidateStarterGroupAddedEventHandler implements QueryEventHandler {
  
      private final EntityManager entityManager;
  
      public ProcessCandidateStarterGroupAddedEventHandler(EntityManager entityManager) {
          this.entityManager = entityManager;
      }
  
      @Override
      public void handle(CloudRuntimeEvent<?, ?> event) {
          CloudProcessCandidateStarterGroupAddedEvent processCandidateStarterGroupAddedEvent = (CloudProcessCandidateStarterGroupAddedEvent) event;
          org.activiti.api.process.model.ProcessCandidateStarterGroup processCandidateStarterGroup = processCandidateStarterGroupAddedEvent.getEntity();
          ProcessCandidateStarterGroupEntity entity = new ProcessCandidateStarterGroupEntity(
              processCandidateStarterGroup.getProcessDefinitionId(),
              processCandidateStarterGroup.getGroupId()
          );
  
          try {
              if (!candidateStarterEntityAlreadyExists(entity)) {
                  entityManager.persist(entity);
              }
          } catch (Exception cause) {
              throw new QueryException("Error handling ProcessCandidateStarterGroupAddedEvent[" + event + "]", cause);
          }
      }
  
      @Override
      public String getHandledEvent() {
          return ProcessCandidateStarterGroupEvent.ProcessCandidateStarterGroupEvents.PROCESS_CANDIDATE_STARTER_GROUP_ADDED.name();
      }
  
      private boolean candidateStarterEntityAlreadyExists(ProcessCandidateStarterGroupEntity entity) {
          return (
              entityManager.find(
                  ProcessCandidateStarterGroupEntity.class,
                  new ProcessCandidateStarterGroupId(entity.getProcessDefinitionId(), entity.getGroupId())
              ) !=
              null
          );
      }
  }
  