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.services.connectors;
  
  import static org.activiti.cloud.common.messaging.config.FunctionRouterConfiguration.FUNCTION_DESTINATION;
  
  import org.activiti.cloud.api.process.model.IntegrationRequest;
  import org.activiti.cloud.common.messaging.config.FunctionBindingConfiguration;
  import org.activiti.services.connectors.message.IntegrationContextMessageBuilderFactory;
  import org.springframework.cloud.stream.function.StreamBridge;
  import org.springframework.messaging.Message;
  import org.springframework.transaction.IllegalTransactionStateException;
  import org.springframework.transaction.support.TransactionSynchronization;
  import org.springframework.transaction.support.TransactionSynchronizationManager;
  
  public class IntegrationRequestSender {
  
      public static final String CONNECTOR_TYPE = "connectorType";
  
      private final StreamBridge streamBridge;
      private final IntegrationContextMessageBuilderFactory messageBuilderFactory;
      private final FunctionBindingConfiguration.BindingResolver bindingResolver;
  
      public IntegrationRequestSender(
          StreamBridge streamBridge,
          IntegrationContextMessageBuilderFactory messageBuilderFactory,
          FunctionBindingConfiguration.BindingResolver bindingResolver
      ) {
          this.streamBridge = streamBridge;
          this.messageBuilderFactory = messageBuilderFactory;
          this.bindingResolver = bindingResolver;
      }
  
      public void sendIntegrationRequest(IntegrationRequest event) {
          if (!TransactionSynchronizationManager.isSynchronizationActive()) {
              throw new IllegalTransactionStateException("Transaction synchronization must be active.");
          }
  
          TransactionSynchronizationManager.registerSynchronization(
              new TransactionSynchronization() {
                  @Override
                  public void afterCommit() {
                      streamBridge.send(
                          event.getIntegrationContext().getConnectorType(),
                          buildIntegrationRequestMessage(event)
                      );
                  }
              }
          );
      }
  
      private Message<IntegrationRequest> buildIntegrationRequestMessage(IntegrationRequest event) {
          var destination = bindingResolver.getBindingDestination(event.getIntegrationContext().getConnectorType());
  
          return messageBuilderFactory
              .create(event.getIntegrationContext())
              .withPayload(event)
              .setHeader(FUNCTION_DESTINATION, bindingResolver.getBindingDestination(destination))
              .build();
      }
  }
  