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.io.IOException;
  import java.io.InputStream;
  import java.nio.charset.StandardCharsets;
  import java.util.ArrayList;
  import java.util.List;
  import org.activiti.api.process.model.ProcessDefinition;
  import org.activiti.api.process.model.events.ProcessDeployedEvent;
  import org.activiti.api.process.runtime.events.listener.ProcessRuntimeEventListener;
  import org.activiti.api.runtime.event.impl.ProcessDeployedEventImpl;
  import org.activiti.api.runtime.event.impl.ProcessDeployedEvents;
  import org.activiti.engine.ActivitiException;
  import org.activiti.engine.RepositoryService;
  import org.activiti.runtime.api.model.impl.APIProcessDefinitionConverter;
  import org.springframework.context.ApplicationEventPublisher;
  import org.springframework.util.StreamUtils;
  
  public class ProcessDeployedEventProducer extends AbstractActivitiSmartLifeCycle {
  
      private RepositoryService repositoryService;
      private APIProcessDefinitionConverter converter;
      private List<ProcessRuntimeEventListener<ProcessDeployedEvent>> listeners;
      private ApplicationEventPublisher eventPublisher;
  
      public ProcessDeployedEventProducer(
          RepositoryService repositoryService,
          APIProcessDefinitionConverter converter,
          List<ProcessRuntimeEventListener<ProcessDeployedEvent>> listeners,
          ApplicationEventPublisher eventPublisher
      ) {
          this.repositoryService = repositoryService;
          this.converter = converter;
          this.listeners = listeners;
          this.eventPublisher = eventPublisher;
      }
  
      @Override
      public void doStart() {
          List<ProcessDefinition> processDefinitions = converter.from(
              repositoryService.createProcessDefinitionQuery().latestVersion().list()
          );
          List<ProcessDeployedEvent> processDeployedEvents = new ArrayList<>();
          for (ProcessDefinition processDefinition : processDefinitions) {
              try (InputStream inputStream = repositoryService.getProcessModel(processDefinition.getId())) {
                  String xmlModel = StreamUtils.copyToString(inputStream, StandardCharsets.UTF_8);
                  ProcessDeployedEventImpl processDeployedEvent = new ProcessDeployedEventImpl(
                      processDefinition,
                      xmlModel
                  );
                  processDeployedEvents.add(processDeployedEvent);
                  for (ProcessRuntimeEventListener<ProcessDeployedEvent> listener : listeners) {
                      listener.onEvent(processDeployedEvent);
                  }
              } catch (IOException e) {
                  throw new ActivitiException(
                      "Error occurred while getting process model '" + processDefinition.getId() + "' : ",
                      e
                  );
              }
          }
          if (!processDeployedEvents.isEmpty()) {
              eventPublisher.publishEvent(new ProcessDeployedEvents(processDeployedEvents));
          }
      }
  
      @Override
      public void doStop() {
          // nothing
      }
  }
  