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.release;
  
  import static org.activiti.cloud.services.messages.core.support.Predicates.MESSAGE_SENT;
  import static org.activiti.cloud.services.messages.core.support.Predicates.MESSAGE_WAITING;
  import static org.activiti.cloud.services.messages.core.support.Predicates.START_MESSAGE_DEPLOYED;
  
  import java.util.Collection;
  import org.springframework.integration.store.MessageGroup;
  import org.springframework.messaging.Message;
  
  public class MessageSentReleaseHandler implements MessageGroupReleaseHandler {
  
      public MessageSentReleaseHandler() {}
  
      @Override
      public Boolean handle(MessageGroup group) {
          if (canRelease(group)) {
              return true;
          }
  
          return null;
      }
  
      protected boolean canRelease(MessageGroup group) {
          Collection<Message<?>> messages = group.getMessages();
  
          return (
              messages.stream().anyMatch(MESSAGE_WAITING.or(START_MESSAGE_DEPLOYED)) &&
              messages.stream().anyMatch(MESSAGE_SENT)
          );
      }
  }
  