| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| TurbineVelocity |
|
| 1.0;1 |
| 1 | package org.apache.turbine.services.velocity; | |
| 2 | ||
| 3 | ||
| 4 | /* | |
| 5 | * Licensed to the Apache Software Foundation (ASF) under one | |
| 6 | * or more contributor license agreements. See the NOTICE file | |
| 7 | * distributed with this work for additional information | |
| 8 | * regarding copyright ownership. The ASF licenses this file | |
| 9 | * to you under the Apache License, Version 2.0 (the | |
| 10 | * "License"); you may not use this file except in compliance | |
| 11 | * with the License. You may obtain a copy of the License at | |
| 12 | * | |
| 13 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 14 | * | |
| 15 | * Unless required by applicable law or agreed to in writing, | |
| 16 | * software distributed under the License is distributed on an | |
| 17 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
| 18 | * KIND, either express or implied. See the License for the | |
| 19 | * specific language governing permissions and limitations | |
| 20 | * under the License. | |
| 21 | */ | |
| 22 | ||
| 23 | ||
| 24 | import java.io.OutputStream; | |
| 25 | import java.io.Writer; | |
| 26 | ||
| 27 | import org.apache.turbine.pipeline.PipelineData; | |
| 28 | import org.apache.turbine.services.TurbineServices; | |
| 29 | import org.apache.turbine.util.RunData; | |
| 30 | ||
| 31 | import org.apache.velocity.context.Context; | |
| 32 | ||
| 33 | /** | |
| 34 | * This is a simple static accessor to common Velocity tasks such as | |
| 35 | * getting an instance of a context as well as handling a request for | |
| 36 | * processing a template. | |
| 37 | * <pre> | |
| 38 | * Context context = TurbineVelocity.getContext(data); | |
| 39 | * context.put("message", "Hello from Turbine!"); | |
| 40 | * String results = TurbineVelocity.handleRequest(context, "helloWorld.vm"); | |
| 41 | * data.getPage().getBody().addElement(results); | |
| 42 | * </pre> | |
| 43 | * | |
| 44 | * @author <a href="mailto:john.mcnally@clearink.com">John D. McNally</a> | |
| 45 | * @author <a href="mailto:jon@latchkey.com">Jon S. Stevens</a> | |
| 46 | * @author <a href="mailto:jvanzyl@periapt.com.com">Jason van Zyl</a> | |
| 47 | * @author <a href="mailto:peter@courcoux.biz">Peter Courcoux</a> | |
| 48 | * @version $Id: TurbineVelocity.java 615328 2008-01-25 20:25:05Z tv $ | |
| 49 | */ | |
| 50 | 0 | public abstract class TurbineVelocity |
| 51 | { | |
| 52 | /** | |
| 53 | * Utility method for accessing the service | |
| 54 | * implementation | |
| 55 | * | |
| 56 | * @return a VelocityService implementation instance | |
| 57 | */ | |
| 58 | public static VelocityService getService() | |
| 59 | { | |
| 60 | 158 | return (VelocityService) TurbineServices |
| 61 | .getInstance().getService(VelocityService.SERVICE_NAME); | |
| 62 | } | |
| 63 | ||
| 64 | /** | |
| 65 | * This allows you to pass in a context and a path to a template | |
| 66 | * file and then grabs an instance of the velocity service and | |
| 67 | * processes the template and returns the results as a String | |
| 68 | * object. | |
| 69 | * | |
| 70 | * @param context A Context. | |
| 71 | * @param template The path for the template files. | |
| 72 | * @return A String. | |
| 73 | * @exception Exception a generic exception. | |
| 74 | */ | |
| 75 | public static String handleRequest(Context context, String template) | |
| 76 | throws Exception | |
| 77 | { | |
| 78 | 2 | return getService().handleRequest(context, template); |
| 79 | } | |
| 80 | ||
| 81 | /** | |
| 82 | * Process the request and fill in the template with the values | |
| 83 | * you set in the Context. | |
| 84 | * | |
| 85 | * @param context A Context. | |
| 86 | * @param template A String with the filename of the template. | |
| 87 | * @param out A OutputStream where we will write the process template as | |
| 88 | * a String. | |
| 89 | * @exception Exception a generic exception. | |
| 90 | */ | |
| 91 | public static void handleRequest(Context context, String template, | |
| 92 | OutputStream out) | |
| 93 | throws Exception | |
| 94 | { | |
| 95 | 2 | getService().handleRequest(context, template, out); |
| 96 | 2 | } |
| 97 | ||
| 98 | /** | |
| 99 | * Process the request and fill in the template with the values | |
| 100 | * you set in the Context. | |
| 101 | * | |
| 102 | * @param context A Context. | |
| 103 | * @param template A String with the filename of the template. | |
| 104 | * @param writer A Writer where we will write the process template as | |
| 105 | * a String. | |
| 106 | * @exception Exception a generic exception. | |
| 107 | */ | |
| 108 | public static void handleRequest(Context context, | |
| 109 | String template, | |
| 110 | Writer writer) | |
| 111 | throws Exception | |
| 112 | { | |
| 113 | 0 | getService().handleRequest(context, template, writer); |
| 114 | 0 | } |
| 115 | ||
| 116 | /** | |
| 117 | * This returns a Context that you can pass into handleRequest | |
| 118 | * once you have populated it with information that the template | |
| 119 | * will know about. | |
| 120 | * @deprecated Use the PipelineData version instead. | |
| 121 | * @param data A Turbine RunData. | |
| 122 | * @return A Context. | |
| 123 | */ | |
| 124 | public static Context getContext(RunData data) | |
| 125 | { | |
| 126 | 18 | return getService().getContext(data); |
| 127 | } | |
| 128 | ||
| 129 | /** | |
| 130 | * This returns a Context that you can pass into handleRequest | |
| 131 | * once you have populated it with information that the template | |
| 132 | * will know about. | |
| 133 | * | |
| 134 | * @param data A Turbine RunData. | |
| 135 | * @return A Context. | |
| 136 | */ | |
| 137 | public static Context getContext(PipelineData pipelineData) | |
| 138 | { | |
| 139 | 40 | return getService().getContext(pipelineData); |
| 140 | } | |
| 141 | ||
| 142 | /** | |
| 143 | * This method returns a blank Context object, which | |
| 144 | * also contains the global context object. Do not use | |
| 145 | * this method if you need an empty context object! Use | |
| 146 | * getNewContext for this. | |
| 147 | * | |
| 148 | * @return A WebContext. | |
| 149 | */ | |
| 150 | public static Context getContext() | |
| 151 | { | |
| 152 | 0 | return getService().getContext(); |
| 153 | } | |
| 154 | ||
| 155 | /** | |
| 156 | * This method returns a new, empty Context object. | |
| 157 | * | |
| 158 | * @return A WebContext. | |
| 159 | */ | |
| 160 | public static Context getNewContext() | |
| 161 | { | |
| 162 | 0 | return getService().getNewContext(); |
| 163 | } | |
| 164 | ||
| 165 | /** | |
| 166 | * Performs post-request actions (releases context | |
| 167 | * tools back to the object pool). | |
| 168 | * | |
| 169 | * @param context a Velocity Context | |
| 170 | */ | |
| 171 | public static void requestFinished(Context context) | |
| 172 | { | |
| 173 | 2 | getService().requestFinished(context); |
| 174 | 2 | } |
| 175 | } |