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.cloud.services.events.converter;
  
  import java.util.Optional;
  import org.activiti.engine.impl.context.ExecutionContext;
  import org.activiti.engine.impl.persistence.entity.DeploymentEntity;
  import org.activiti.engine.impl.persistence.entity.ExecutionEntity;
  import org.activiti.engine.repository.ProcessDefinition;
  
  /**
   * Wraps ExecutionContext to cache parent method lookups to reduce
   * unnecessary db queries to lookup entities
   *
   */
  public class CachingExecutionContext extends ExecutionContext {
  
      private volatile DeploymentEntity deploymentEntity = null;
      private volatile ExecutionEntity execution = null;
      private volatile ExecutionEntity processInstance = null;
      private volatile ProcessDefinition processDefinition = null;
  
      public CachingExecutionContext(ExecutionEntity execution) {
          super(execution);
      }
  
      @Override
      public DeploymentEntity getDeployment() {
          return Optional
              .ofNullable(deploymentEntity)
              .orElseGet(() -> {
                  return (this.deploymentEntity = super.getDeployment());
              });
      }
  
      @Override
      public ExecutionEntity getExecution() {
          return Optional
              .ofNullable(execution)
              .orElseGet(() -> {
                  return (this.execution = super.getExecution());
              });
      }
  
      @Override
      public ExecutionEntity getProcessInstance() {
          return Optional
              .ofNullable(processInstance)
              .orElseGet(() -> {
                  return (this.processInstance = super.getProcessInstance());
              });
      }
  
      @Override
      public ProcessDefinition getProcessDefinition() {
          return Optional
              .ofNullable(processDefinition)
              .orElseGet(() -> {
                  return (this.processDefinition = super.getProcessDefinition());
              });
      }
  }
  