package org.apache.turbine.modules.layouts;

 /*

  * 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.

  */

 import org.apache.turbine.modules.Layout;

 import org.apache.turbine.pipeline.PipelineData;

 import org.apache.turbine.util.RunData;

 import org.apache.turbine.util.TurbineException;

 /**

  * This layout allows an action to manipulate the ServletOutputStream directly.

  * It requires that data.declareDirectResponse() has been called to indicate

  * that the OutputStream is being handled elsewhere.

  *

  * @author <a href="mailto:peter@courcoux.biz">Peter Courcoux</a>

  * @version $Id: DirectResponseLayout.java 1854797 2019-03-04 20:41:39Z tv $

  */

 public class DirectResponseLayout implements Layout

 {

     /**

      * Ensures that a direct response has been declared.

      *

      * @param pipelineData Turbine information.

      * @throws TurbineException if a direct response has not been declared.

      */

     @Override

     public void doBuild(PipelineData pipelineData)

             throws Exception

     {

         RunData data = pipelineData.getRunData();

         if (!data.isOutSet())

         {

             throw new TurbineException(

                 "data.declareDirectResponse() has not been called");

         }

     }

 }