    001package org.apache.turbine.modules.pages;
    002
    003
    004/*
    005 * Licensed to the Apache Software Foundation (ASF) under one
    006 * or more contributor license agreements.  See the NOTICE file
    007 * distributed with this work for additional information
    008 * regarding copyright ownership.  The ASF licenses this file
    009 * to you under the Apache License, Version 2.0 (the
    010 * "License"); you may not use this file except in compliance
    011 * with the License.  You may obtain a copy of the License at
    012 *
    013 *   http://www.apache.org/licenses/LICENSE-2.0
    014 *
    015 * Unless required by applicable law or agreed to in writing,
    016 * software distributed under the License is distributed on an
    017 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    018 * KIND, either express or implied.  See the License for the
    019 * specific language governing permissions and limitations
    020 * under the License.
    021 */
    022
    023
    024import org.apache.turbine.annotation.TurbineService;
    025import org.apache.turbine.pipeline.PipelineData;
    026import org.apache.turbine.services.velocity.VelocityService;
    027import org.apache.turbine.util.RunData;
    028import org.apache.velocity.context.Context;
    029
    030/**
    031 * Extends TemplatePage to set the template Context.
    032 *
    033 * @author <a href="mailto:mbryson@mont.mindspring.com">Dave Bryson</a>
    034 * @author <a href="mailto:john.mcnally@clearink.com">John D. McNally</a>
    035 * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a>
    036 * @author <a href="mailto:peter@courcoux.biz">Peter Courcoux</a>
    037 * @version $Id: VelocityPage.java 1706239 2015-10-01 13:18:35Z tv $
    038 */
    039public class VelocityPage
    040    extends TemplatePage
    041{
    042    /** Injected service instance */
    043    @TurbineService
    044    private VelocityService velocity;
    045
    046    /**
    047     * Stuffs the Context into the PipelineData so that it is available to
    048     * the Action module and the Screen module via getContext().
    049     *
    050     * @param pipelineData Turbine information.
    051     * @exception Exception, a generic exception.
    052     */
    053    @Override
    054    protected void doBuildBeforeAction(PipelineData pipelineData)
    055        throws Exception
    056    {
    057        RunData data = getRunData(pipelineData);
    058        Context context = velocity.getContext(pipelineData);
    059        data.getTemplateInfo()
    060            .setTemplateContext(VelocityService.CONTEXT, context);
    061    }
    062
    063    /**
    064     * Allows the VelocityService to perform post-request actions.
    065     * (releases the (non-global) tools in the context for reuse later)
    066     */
    067    @Override
    068    protected void doPostBuild(PipelineData pipelineData)
    069        throws Exception
    070    {
    071        Context context = velocity.getContext(pipelineData);
    072        velocity.requestFinished(context);
    073    }
    074}