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.spring;
  
  import java.net.URL;
  import java.util.Map;
  import org.activiti.engine.ActivitiException;
  import org.activiti.engine.ProcessEngine;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.context.ApplicationContext;
  import org.springframework.context.support.GenericXmlApplicationContext;
  import org.springframework.core.io.UrlResource;
  
  /**
  
   */
  public class SpringConfigurationHelper {
  
      private static Logger log = LoggerFactory.getLogger(SpringConfigurationHelper.class);
  
      public static ProcessEngine buildProcessEngine(URL resource) {
          log.debug(
              "==== BUILDING SPRING APPLICATION CONTEXT AND PROCESS ENGINE ========================================="
          );
  
          ApplicationContext applicationContext = new GenericXmlApplicationContext(new UrlResource(resource));
          Map<String, ProcessEngine> beansOfType = applicationContext.getBeansOfType(ProcessEngine.class);
          if ((beansOfType == null) || (beansOfType.isEmpty())) {
              throw new ActivitiException(
                  "no " + ProcessEngine.class.getName() + " defined in the application context " + resource.toString()
              );
          }
  
          ProcessEngine processEngine = beansOfType.values().iterator().next();
  
          log.debug(
              "==== SPRING PROCESS ENGINE CREATED =================================================================="
          );
          return processEngine;
      }
  }
  