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.engine.impl.interceptor;
  
  import org.activiti.engine.impl.cfg.ProcessEngineConfigurationImpl;
  import org.activiti.engine.impl.context.Context;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
  
  
   */
  public class CommandContextInterceptor extends AbstractCommandInterceptor {
  
      private static final Logger log = LoggerFactory.getLogger(CommandContextInterceptor.class);
  
      protected CommandContextFactory commandContextFactory;
      protected ProcessEngineConfigurationImpl processEngineConfiguration;
  
      public CommandContextInterceptor() {}
  
      public CommandContextInterceptor(
          CommandContextFactory commandContextFactory,
          ProcessEngineConfigurationImpl processEngineConfiguration
      ) {
          this.commandContextFactory = commandContextFactory;
          this.processEngineConfiguration = processEngineConfiguration;
      }
  
      public <T> T execute(CommandConfig config, Command<T> command) {
          CommandContext context = Context.getCommandContext();
  
          boolean contextReused = false;
          // We need to check the exception, because the transaction can be in a
          // rollback state, and some other command is being fired to compensate (eg. decrementing job retries)
          if (!config.isContextReusePossible() || context == null || context.getException() != null) {
              context = commandContextFactory.createCommandContext(command);
          } else {
              log.debug(
                  "Valid context found. Reusing it for the current command '{}'",
                  command.getClass().getCanonicalName()
              );
              contextReused = true;
              context.setReused(true);
          }
  
          try {
              // Push on stack
              Context.setCommandContext(context);
              Context.setProcessEngineConfiguration(processEngineConfiguration);
              return next.execute(config, command);
          } catch (Throwable e) {
              context.exception(e);
          } finally {
              try {
                  if (!contextReused) {
                      context.close();
                  }
              } finally {
                  // Pop from stack
                  Context.removeCommandContext();
                  Context.removeProcessEngineConfiguration();
                  Context.removeBpmnOverrideContext();
              }
          }
  
          return null;
      }
  
      public CommandContextFactory getCommandContextFactory() {
          return commandContextFactory;
      }
  
      public void setCommandContextFactory(CommandContextFactory commandContextFactory) {
          this.commandContextFactory = commandContextFactory;
      }
  
      public ProcessEngineConfigurationImpl getProcessEngineConfiguration() {
          return processEngineConfiguration;
      }
  
      public void setProcessEngineContext(ProcessEngineConfigurationImpl processEngineContext) {
          this.processEngineConfiguration = processEngineContext;
      }
  }
  