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.notifications.graphql.events.transformer;
  
  import java.util.List;
  import java.util.Map;
  import java.util.stream.Collectors;
  import org.activiti.cloud.services.notifications.graphql.events.model.EngineEvent;
  
  /**
   * Transform flat list of engine events maps into linear structure with validation of eventType key
   */
  public class EngineEventsTransformer implements Transformer {
  
      private final List<String> attributeList;
      private final String eventTypeKey;
  
      public EngineEventsTransformer(List<String> attributeList, String eventTypeKey) {
          this.attributeList = attributeList;
          this.eventTypeKey = eventTypeKey;
      }
  
      @Override
      public List<EngineEvent> transform(List<Map<String, Object>> events) {
          return events.stream().filter(this::isValid).map(it -> new EngineEvent(it)).collect(Collectors.toList());
      }
  
      private boolean isValid(Map<String, Object> event) {
          return event.get(eventTypeKey) != null;
      }
  }
  