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.builder.generator.action;
  
  import com.alibaba.compileflow.engine.core.builder.generator.GeneratorContext;
  import com.alibaba.compileflow.engine.core.builder.generator.code.CodeTargetSupport;
  import com.alibaba.compileflow.engine.core.definition.action.IAction;
  import com.alibaba.compileflow.engine.core.definition.action.impl.ScriptActionHandle;
  import com.alibaba.compileflow.engine.core.definition.var.IVar;
  import com.alibaba.compileflow.engine.core.infrastructure.type.DataType;
  
  import java.util.List;
  
  /**
   * @author wuxiang
   * @author yusu
   */
  public abstract class AbstractScriptActionGenerator extends AbstractActionGenerator {
  
      public AbstractScriptActionGenerator(GeneratorContext context,
                                           IAction action) {
          super(context, action);
      }
  
      protected void generateScriptExecuteCode(CodeTargetSupport codeTargetSupport) {
          List<IVar> methodParameters = getMethodParameters();
          for (IVar param : methodParameters) {
              String var = param.getContextVarName() != null ?
                      DataType.generateTypeConversionCode(getVarType(param.getContextVarName()),
                              DataType.getJavaClass(param.getDataType()), param.getContextVarName())
                      : DataType.getDefaultValueString(DataType.getJavaClass(param.getDataType()),
                      param.getDefaultValue());
  
              codeTargetSupport.addBodyLine("_ScriptContext.put(\"" + param.getName() + "\", " + var + ");");
          }
  
          String noReturnCode = "ScriptExecutorProvider.getInstance()"
                  + ".getScriptExecutor(" + "\"" + getScriptExecutorName() + "\"" + ")"
                  + ".execute(\"" + getExpression() + "\", _ScriptContext)";
          IVar returnVar = getReturnVar();
          if (returnVar != null && returnVar.getContextVarName() != null) {
              codeTargetSupport.addBodyLine(getReturnVarCode() + "(" + returnVar.getDataType()
                      + ")" + noReturnCode + ";");
          } else {
              codeTargetSupport.addBodyLine(noReturnCode + ";");
          }
      }
  
      protected String getExpression() {
          return ((ScriptActionHandle) actionHandle).getExpression();
      }
  
      protected abstract String getScriptExecutorName();
  
  }
  