content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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 com.alibaba.compileflow.engine.core.runtime;
  
  import com.alibaba.compileflow.engine.core.definition.FlowModel;
  import com.alibaba.compileflow.engine.core.runtime.instance.ProcessInstance;
  
  /**
   * Holds the compiled process artifacts: {@link FlowModel} and instance class.
   * Lifecycle is managed by the engine.
   *
   * @author yusu
   */
  public abstract class AbstractProcessRuntime<T extends FlowModel> implements ProcessRuntime<T> {
  
      /**
       * In-memory process definition.
       */
      protected final T flowModel;
      /**
       * Compiled class implementing the process logic.
       */
      protected final Class<? extends ProcessInstance> processInstanceClass;
  
      public AbstractProcessRuntime(T flowModel, Class<? extends ProcessInstance> processInstanceClass) {
          if (flowModel == null) {
              throw new IllegalArgumentException("flowModel cannot be null");
          }
          if (processInstanceClass == null) {
              throw new IllegalArgumentException("processInstanceClass cannot be null");
          }
          this.flowModel = flowModel;
          this.processInstanceClass = processInstanceClass;
      }
  
      /**
       * Process code.
       */
      public String getCode() {
          return flowModel.getCode();
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      public T getFlowModel() {
          return flowModel;
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      public Class<? extends ProcessInstance> getProcessInstanceClass() {
          return processInstanceClass;
      }
  
  }
  