content: /*
   * Copyright 2010-2025 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.runtime.api.connector;
  
  import org.activiti.api.process.model.IntegrationContext;
  import org.activiti.api.process.runtime.connector.Connector;
  import org.activiti.bpmn.model.ServiceTask;
  import org.activiti.engine.delegate.DelegateExecution;
  import org.activiti.engine.impl.bpmn.behavior.DelegateExecutionFunction;
  import org.activiti.engine.impl.bpmn.behavior.DelegateExecutionOutcome;
  import org.activiti.engine.impl.bpmn.behavior.VariablesPropagator;
  import org.springframework.context.ApplicationContext;
  
  public class DefaultServiceTaskBehavior implements DelegateExecutionFunction {
  
      private final ApplicationContext applicationContext;
      private final IntegrationContextBuilder integrationContextBuilder;
      private final VariablesPropagator variablesPropagator;
  
      public DefaultServiceTaskBehavior(
          ApplicationContext applicationContext,
          IntegrationContextBuilder integrationContextBuilder,
          VariablesPropagator variablesPropagator
      ) {
          this.applicationContext = applicationContext;
          this.integrationContextBuilder = integrationContextBuilder;
          this.variablesPropagator = variablesPropagator;
      }
  
      /**
       * We have two different implementation strategy that can be executed
       * in according if we have a connector action definition match or not.
       **/
      @Override
      public DelegateExecutionOutcome apply(DelegateExecution execution) {
          Connector connector = getConnector(getImplementation(execution));
          IntegrationContext integrationContext = connector.apply(integrationContextBuilder.from(execution));
  
          variablesPropagator.propagate(execution, integrationContext.getOutBoundVariables());
          return DelegateExecutionOutcome.LEAVE_EXECUTION;
      }
  
      private String getImplementation(DelegateExecution execution) {
          return ((ServiceTask) execution.getCurrentFlowElement()).getImplementation();
      }
  
      private Connector getConnector(String implementation) {
          return applicationContext.getBean(implementation, Connector.class);
      }
  
      private String getServiceTaskImplementation(DelegateExecution execution) {
          return ((ServiceTask) execution.getCurrentFlowElement()).getImplementation();
      }
  
      public boolean hasConnectorBean(DelegateExecution execution) {
          String implementation = getServiceTaskImplementation(execution);
          return (
              applicationContext.containsBean(implementation) &&
              applicationContext.getBean(implementation) instanceof Connector
          );
      }
  }
  