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.messages.core.support;
  
  import static org.activiti.cloud.services.messages.core.integration.MessageEventHeaders.MESSAGE_EVENT_TYPE;
  
  import java.util.Optional;
  import org.springframework.integration.core.MessageSelector;
  import org.springframework.messaging.Message;
  
  public class MessageSelectors {
  
      public static class MessageEventTypeSelector implements MessageSelector {
  
          private final Enum<?> type;
  
          public MessageEventTypeSelector(Enum<?> type) {
              this.type = type;
          }
  
          @Override
          public boolean accept(Message<?> message) {
              return Optional
                  .ofNullable(message.getHeaders().get(MESSAGE_EVENT_TYPE))
                  .filter(type.name()::equals)
                  .isPresent();
          }
      }
  }
  