| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| VelocityCachedLayout |
|
| 1.0;1 |
| 1 | package org.apache.turbine.modules.layouts; | |
| 2 | ||
| 3 | /* | |
| 4 | * Licensed to the Apache Software Foundation (ASF) under one | |
| 5 | * or more contributor license agreements. See the NOTICE file | |
| 6 | * distributed with this work for additional information | |
| 7 | * regarding copyright ownership. The ASF licenses this file | |
| 8 | * to you under the Apache License, Version 2.0 (the | |
| 9 | * "License"); you may not use this file except in compliance | |
| 10 | * with the License. You may obtain a copy of the License at | |
| 11 | * | |
| 12 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 13 | * | |
| 14 | * Unless required by applicable law or agreed to in writing, | |
| 15 | * software distributed under the License is distributed on an | |
| 16 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
| 17 | * KIND, either express or implied. See the License for the | |
| 18 | * specific language governing permissions and limitations | |
| 19 | * under the License. | |
| 20 | */ | |
| 21 | ||
| 22 | import org.apache.commons.logging.Log; | |
| 23 | import org.apache.commons.logging.LogFactory; | |
| 24 | import org.apache.turbine.TurbineConstants; | |
| 25 | import org.apache.turbine.annotation.TurbineService; | |
| 26 | import org.apache.turbine.modules.Layout; | |
| 27 | import org.apache.turbine.modules.pages.DefaultPage; | |
| 28 | import org.apache.turbine.pipeline.PipelineData; | |
| 29 | import org.apache.turbine.services.velocity.VelocityService; | |
| 30 | import org.apache.turbine.util.RunData; | |
| 31 | import org.apache.turbine.util.template.TemplateNavigation; | |
| 32 | import org.apache.turbine.util.template.TemplateScreen; | |
| 33 | import org.apache.velocity.context.Context; | |
| 34 | ||
| 35 | /** | |
| 36 | * This Layout module is Turbine 2.3.3 VelocityDirectLayout (same package) | |
| 37 | * with methods added for {@link PipelineData}. It is used in Jetspeed-1 portal. | |
| 38 | * | |
| 39 | * By using this layout any view write will immediately call the provided print writer {@link RunData#getOut()} and | |
| 40 | * the HTTP servlet response will be flushed and set the committed flag. This means of course | |
| 41 | * no change to the HTTP response header will be possible afterwards. By setting the {@link RunData#setAction(String)} in the request | |
| 42 | * (not only the model, but also) additional response headers could be set, cft. {@link DefaultPage#doBuild(PipelineData)}. | |
| 43 | * | |
| 44 | * @author <a href="mailto:raphael@apache.org">Raphaƫl Luta</a> | |
| 45 | * @author <a href="mailto:john.mcnally@clearink.com">John D. McNally</a> | |
| 46 | * @author <a href="mailto:mbryson@mont.mindspring.com">Dave Bryson</a> | |
| 47 | * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a> | |
| 48 | * @version $Id$ | |
| 49 | */ | |
| 50 | 0 | public class VelocityCachedLayout |
| 51 | extends Layout | |
| 52 | { | |
| 53 | /** Logging */ | |
| 54 | 0 | private static Log log = LogFactory.getLog(VelocityCachedLayout.class); |
| 55 | ||
| 56 | /** The prefix for lookup up layout pages */ | |
| 57 | 0 | private String prefix = getPrefix() + "/"; |
| 58 | ||
| 59 | /** Injected service instance */ | |
| 60 | @TurbineService | |
| 61 | private VelocityService velocityService; | |
| 62 | ||
| 63 | /** | |
| 64 | * Method called by LayoutLoader. | |
| 65 | * | |
| 66 | * | |
| 67 | * @param pipelineData PipelineData | |
| 68 | * @throws Exception generic exception | |
| 69 | */ | |
| 70 | @Override | |
| 71 | public void doBuild(PipelineData pipelineData) | |
| 72 | throws Exception | |
| 73 | { | |
| 74 | 0 | RunData data = getRunData(pipelineData); |
| 75 | // Get the context needed by Velocity. | |
| 76 | 0 | Context context = velocityService.getContext(pipelineData); |
| 77 | ||
| 78 | // variable for the screen in the layout template | |
| 79 | 0 | context.put(TurbineConstants.SCREEN_PLACEHOLDER, |
| 80 | new TemplateScreen(data)); | |
| 81 | ||
| 82 | // variable to reference the navigation screen in the layout template | |
| 83 | 0 | context.put(TurbineConstants.NAVIGATION_PLACEHOLDER, |
| 84 | new TemplateNavigation(data)); | |
| 85 | ||
| 86 | // Grab the layout template set in the VelocityPage. | |
| 87 | // If null, then use the default layout template | |
| 88 | // (done by the TemplateInfo object) | |
| 89 | 0 | String templateName = data.getTemplateInfo().getLayoutTemplate(); |
| 90 | ||
| 91 | // Set the locale and content type | |
| 92 | 0 | data.getResponse().setLocale(data.getLocale()); |
| 93 | 0 | data.getResponse().setContentType(data.getContentType()); |
| 94 | ||
| 95 | 0 | log.debug("Now trying to render layout " + templateName); |
| 96 | ||
| 97 | // Finally, generate the layout template and send it to the browser | |
| 98 | 0 | velocityService.handleRequest(context, |
| 99 | prefix + templateName, data.getOut()); | |
| 100 | 0 | } |
| 101 | } | |
| 102 |