| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| Turbine |
|
| 2.4827586206896552;2,483 |
| 1 | package org.apache.turbine; | |
| 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 java.io.BufferedReader; | |
| 23 | import java.io.File; | |
| 24 | import java.io.FileInputStream; | |
| 25 | import java.io.FileNotFoundException; | |
| 26 | import java.io.FileReader; | |
| 27 | import java.io.IOException; | |
| 28 | import java.io.Reader; | |
| 29 | import java.io.UnsupportedEncodingException; | |
| 30 | import java.util.Iterator; | |
| 31 | import java.util.Properties; | |
| 32 | ||
| 33 | import javax.servlet.ServletConfig; | |
| 34 | import javax.servlet.ServletContext; | |
| 35 | import javax.servlet.ServletException; | |
| 36 | import javax.servlet.http.HttpServlet; | |
| 37 | import javax.servlet.http.HttpServletRequest; | |
| 38 | import javax.servlet.http.HttpServletResponse; | |
| 39 | ||
| 40 | import org.apache.commons.configuration.Configuration; | |
| 41 | import org.apache.commons.configuration.ConfigurationFactory; | |
| 42 | import org.apache.commons.configuration.PropertiesConfiguration; | |
| 43 | import org.apache.commons.lang.StringUtils; | |
| 44 | import org.apache.commons.lang.exception.ExceptionUtils; | |
| 45 | import org.apache.commons.logging.Log; | |
| 46 | import org.apache.commons.logging.LogFactory; | |
| 47 | import org.apache.log4j.PropertyConfigurator; | |
| 48 | import org.apache.turbine.modules.PageLoader; | |
| 49 | import org.apache.turbine.pipeline.Pipeline; | |
| 50 | import org.apache.turbine.pipeline.PipelineData; | |
| 51 | import org.apache.turbine.pipeline.TurbinePipeline; | |
| 52 | import org.apache.turbine.services.Initable; | |
| 53 | import org.apache.turbine.services.InitializationException; | |
| 54 | import org.apache.turbine.services.ServiceManager; | |
| 55 | import org.apache.turbine.services.TurbineServices; | |
| 56 | import org.apache.turbine.services.rundata.RunDataService; | |
| 57 | import org.apache.turbine.services.template.TemplateService; | |
| 58 | import org.apache.turbine.services.template.TurbineTemplate; | |
| 59 | import org.apache.turbine.util.RunData; | |
| 60 | import org.apache.turbine.util.ServerData; | |
| 61 | import org.apache.turbine.util.TurbineConfig; | |
| 62 | import org.apache.turbine.util.TurbineException; | |
| 63 | import org.apache.turbine.util.uri.URIConstants; | |
| 64 | ||
| 65 | import com.thoughtworks.xstream.XStream; | |
| 66 | import com.thoughtworks.xstream.io.xml.DomDriver; | |
| 67 | ||
| 68 | /** | |
| 69 | * Turbine is the main servlet for the entire system. It is <code>final</code> | |
| 70 | * because you should <i>not</i> ever need to subclass this servlet. If you | |
| 71 | * need to perform initialization of a service, then you should implement the | |
| 72 | * Services API and let your code be initialized by it. | |
| 73 | * If you need to override something in the <code>doGet()</code> or | |
| 74 | * <code>doPost()</code> methods, edit the TurbineResources.properties file and | |
| 75 | * specify your own classes there. | |
| 76 | * <p> | |
| 77 | * Turbine servlet recognizes the following initialization parameters. | |
| 78 | * <ul> | |
| 79 | * <li><code>properties</code> the path to TurbineResources.properties file | |
| 80 | * used by the default implementation of <code>ResourceService</code>, relative | |
| 81 | * to the application root.</li> | |
| 82 | * <li><code>basedir</code> this parameter is used <strong>only</strong> if your | |
| 83 | * application server does not support web applications, or the or does not | |
| 84 | * support <code>ServletContext.getRealPath(String)</code> method correctly. | |
| 85 | * You can use this parameter to specify the directory within the server's | |
| 86 | * filesystem, that is the base of your web application.</li> | |
| 87 | * </ul> | |
| 88 | * | |
| 89 | * @author <a href="mailto:jon@latchkey.com">Jon S. Stevens</a> | |
| 90 | * @author <a href="mailto:bmclaugh@algx.net">Brett McLaughlin</a> | |
| 91 | * @author <a href="mailto:greg@shwoop.com">Greg Ritter</a> | |
| 92 | * @author <a href="mailto:john.mcnally@clearink.com">John D. McNally</a> | |
| 93 | * @author <a href="mailto:frank.kim@clearink.com">Frank Y. Kim</a> | |
| 94 | * @author <a href="mailto:krzewski@e-point.pl">Rafal Krzewski</a> | |
| 95 | * @author <a href="mailto:jvanzyl@apache.org">Jason van Zyl</a> | |
| 96 | * @author <a href="mailto:sean@informage.net">Sean Legassick</a> | |
| 97 | * @author <a href="mailto:mpoeschl@marmot.at">Martin Poeschl</a> | |
| 98 | * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a> | |
| 99 | * @author <a href="mailto:quintonm@bellsouth.net">Quinton McCombs</a> | |
| 100 | * @author <a href="mailto:epugh@upstate.com">Eric Pugh</a> | |
| 101 | * @author <a href="mailto:peter@courcoux.biz">Peter Courcoux</a> | |
| 102 | * @author <a href="mailto:tv@apache.org">Thomas Vandahl</a> | |
| 103 | * @version $Id: Turbine.java 1096586 2011-04-25 20:31:43Z ludwig $ | |
| 104 | */ | |
| 105 | 176 | public class Turbine |
| 106 | extends HttpServlet | |
| 107 | { | |
| 108 | /** Serialversion */ | |
| 109 | private static final long serialVersionUID = -6317118078613623990L; | |
| 110 | ||
| 111 | /** | |
| 112 | * Name of path info parameter used to indicate the redirected stage of | |
| 113 | * a given user's initial Turbine request | |
| 114 | */ | |
| 115 | public static final String REDIRECTED_PATHINFO_NAME = "redirected"; | |
| 116 | ||
| 117 | /** The base directory key */ | |
| 118 | public static final String BASEDIR_KEY = "basedir"; | |
| 119 | ||
| 120 | /** | |
| 121 | * In certain situations the init() method is called more than once, | |
| 122 | * somtimes even concurrently. This causes bad things to happen, | |
| 123 | * so we use this flag to prevent it. | |
| 124 | */ | |
| 125 | 62 | private static boolean firstInit = true; |
| 126 | ||
| 127 | /** | |
| 128 | * The pipeline to use when processing requests. | |
| 129 | */ | |
| 130 | 62 | private static Pipeline pipeline = null; |
| 131 | ||
| 132 | /** Whether init succeeded or not. */ | |
| 133 | 62 | private static Throwable initFailure = null; |
| 134 | ||
| 135 | /** | |
| 136 | * Should initialization activities be performed during doGet() execution? | |
| 137 | */ | |
| 138 | 62 | private static boolean firstDoGet = true; |
| 139 | ||
| 140 | /** | |
| 141 | * Keep all the properties of the web server in a convenient data | |
| 142 | * structure | |
| 143 | */ | |
| 144 | 62 | private static ServerData serverData = null; |
| 145 | ||
| 146 | /** The base from which the Turbine application will operate. */ | |
| 147 | private static String applicationRoot; | |
| 148 | ||
| 149 | /** Servlet config for this Turbine webapp. */ | |
| 150 | private static ServletConfig servletConfig; | |
| 151 | ||
| 152 | /** Servlet context for this Turbine webapp. */ | |
| 153 | private static ServletContext servletContext; | |
| 154 | ||
| 155 | /** | |
| 156 | * The webapp root where the Turbine application | |
| 157 | * is running in the servlet container. | |
| 158 | * This might differ from the application root. | |
| 159 | */ | |
| 160 | private static String webappRoot; | |
| 161 | ||
| 162 | /** Our internal configuration object */ | |
| 163 | 62 | private static Configuration configuration = null; |
| 164 | ||
| 165 | /** Default Input encoding if the servlet container does not report an encoding */ | |
| 166 | 176 | private String inputEncoding = null; |
| 167 | ||
| 168 | /** Logging class from commons.logging */ | |
| 169 | 62 | private static Log log = LogFactory.getLog(Turbine.class); |
| 170 | ||
| 171 | /** | |
| 172 | * This init method will load the default resources from a | |
| 173 | * properties file. | |
| 174 | * | |
| 175 | * This method is called by init(ServletConfig config) | |
| 176 | * | |
| 177 | * @exception ServletException a servlet exception. | |
| 178 | */ | |
| 179 | public final void init() throws ServletException | |
| 180 | { | |
| 181 | 174 | synchronized (this.getClass()) |
| 182 | { | |
| 183 | 174 | super.init(); |
| 184 | 174 | ServletConfig config = getServletConfig(); |
| 185 | ||
| 186 | 174 | if (!firstInit) |
| 187 | { | |
| 188 | 80 | log.info("Double initialization of Turbine was attempted!"); |
| 189 | 80 | return; |
| 190 | } | |
| 191 | // executing init will trigger some static initializers, so we have | |
| 192 | // only one chance. | |
| 193 | 94 | firstInit = false; |
| 194 | ||
| 195 | try | |
| 196 | { | |
| 197 | 94 | ServletContext context = config.getServletContext(); |
| 198 | ||
| 199 | 94 | configure(config, context); |
| 200 | ||
| 201 | 94 | TemplateService templateService = TurbineTemplate.getService(); |
| 202 | 94 | if (templateService == null) |
| 203 | { | |
| 204 | 0 | throw new TurbineException( |
| 205 | "No Template Service configured!"); | |
| 206 | } | |
| 207 | ||
| 208 | 94 | if (getRunDataService() == null) |
| 209 | { | |
| 210 | 0 | throw new TurbineException( |
| 211 | "No RunData Service configured!"); | |
| 212 | } | |
| 213 | ||
| 214 | } | |
| 215 | 0 | catch (Exception e) |
| 216 | { | |
| 217 | // save the exception to complain loudly later :-) | |
| 218 | 0 | initFailure = e; |
| 219 | 0 | log.fatal("Turbine: init() failed: ", e); |
| 220 | 0 | throw new ServletException("Turbine: init() failed", e); |
| 221 | 94 | } |
| 222 | ||
| 223 | 94 | log.info("Turbine: init() Ready to Rumble!"); |
| 224 | 94 | } |
| 225 | 94 | } |
| 226 | ||
| 227 | /** | |
| 228 | * Read the master configuration file in, configure logging | |
| 229 | * and start up any early services. | |
| 230 | * | |
| 231 | * @param config The Servlet Configuration supplied by the container | |
| 232 | * @param context The Servlet Context supplied by the container | |
| 233 | * | |
| 234 | * @throws Exception A problem occured while reading the configuration or performing early startup | |
| 235 | */ | |
| 236 | ||
| 237 | private void configure(ServletConfig config, ServletContext context) | |
| 238 | throws Exception | |
| 239 | { | |
| 240 | ||
| 241 | // Set the application root. This defaults to the webapp | |
| 242 | // context if not otherwise set. This is to allow 2.1 apps | |
| 243 | // to be developed from CVS. This feature will carry over | |
| 244 | // into 3.0. | |
| 245 | 94 | applicationRoot = findInitParameter(context, config, |
| 246 | TurbineConstants.APPLICATION_ROOT_KEY, | |
| 247 | TurbineConstants.APPLICATION_ROOT_DEFAULT); | |
| 248 | ||
| 249 | 94 | webappRoot = config.getServletContext().getRealPath("/"); |
| 250 | // log.info("Web Application root is " + webappRoot); | |
| 251 | // log.info("Application root is " + applicationRoot); | |
| 252 | ||
| 253 | 94 | if (applicationRoot == null || applicationRoot.equals(TurbineConstants.WEB_CONTEXT)) |
| 254 | { | |
| 255 | 94 | applicationRoot = webappRoot; |
| 256 | // log.info("got empty or 'webContext' Application root. Application root now: " + applicationRoot); | |
| 257 | } | |
| 258 | ||
| 259 | // Set the applicationRoot for this webapp. | |
| 260 | 94 | setApplicationRoot(applicationRoot); |
| 261 | ||
| 262 | // Create any directories that need to be setup for | |
| 263 | // a running Turbine application. | |
| 264 | 94 | createRuntimeDirectories(context, config); |
| 265 | ||
| 266 | // | |
| 267 | // Now we run the Turbine configuration code. There are two ways | |
| 268 | // to configure Turbine: | |
| 269 | // | |
| 270 | // a) By supplying an web.xml init parameter called "configuration" | |
| 271 | // | |
| 272 | // <init-param> | |
| 273 | // <param-name>configuration</param-name> | |
| 274 | // <param-value>/WEB-INF/conf/turbine.xml</param-value> | |
| 275 | // </init-param> | |
| 276 | // | |
| 277 | // This loads an XML based configuration file. | |
| 278 | // | |
| 279 | // b) By supplying an web.xml init parameter called "properties" | |
| 280 | // | |
| 281 | // <init-param> | |
| 282 | // <param-name>properties</param-name> | |
| 283 | // <param-value>/WEB-INF/conf/TurbineResources.properties</param-value> | |
| 284 | // </init-param> | |
| 285 | // | |
| 286 | // This loads a Properties based configuration file. Actually, these are | |
| 287 | // extended properties as provided by commons-configuration | |
| 288 | // | |
| 289 | // If neither a) nor b) is supplied, Turbine will fall back to the | |
| 290 | // known behaviour of loading a properties file called | |
| 291 | // /WEB-INF/conf/TurbineResources.properties relative to the | |
| 292 | // web application root. | |
| 293 | ||
| 294 | 94 | String confFile= findInitParameter(context, config, |
| 295 | TurbineConfig.CONFIGURATION_PATH_KEY, | |
| 296 | null); | |
| 297 | ||
| 298 | String confPath; | |
| 299 | 94 | String confStyle = "unset"; |
| 300 | ||
| 301 | 94 | if (StringUtils.isNotEmpty(confFile)) |
| 302 | { | |
| 303 | 2 | confPath = getRealPath(confFile); |
| 304 | 2 | ConfigurationFactory configurationFactory = new ConfigurationFactory(confPath); |
| 305 | 2 | configurationFactory.setBasePath(getApplicationRoot()); |
| 306 | 2 | configuration = configurationFactory.getConfiguration(); |
| 307 | 2 | confStyle = "XML"; |
| 308 | 2 | } |
| 309 | else | |
| 310 | { | |
| 311 | 92 | confFile = findInitParameter(context, config, |
| 312 | TurbineConfig.PROPERTIES_PATH_KEY, | |
| 313 | TurbineConfig.PROPERTIES_PATH_DEFAULT); | |
| 314 | ||
| 315 | 92 | confPath = getRealPath(confFile); |
| 316 | ||
| 317 | // This should eventually be a Configuration | |
| 318 | // interface so that service and app configuration | |
| 319 | // can be stored anywhere. | |
| 320 | 92 | configuration = new PropertiesConfiguration(confPath); |
| 321 | 92 | confStyle = "Properties"; |
| 322 | } | |
| 323 | ||
| 324 | ||
| 325 | // | |
| 326 | // Set up logging as soon as possible | |
| 327 | // | |
| 328 | 94 | String log4jFile = configuration.getString(TurbineConstants.LOG4J_CONFIG_FILE, |
| 329 | TurbineConstants.LOG4J_CONFIG_FILE_DEFAULT); | |
| 330 | ||
| 331 | 94 | if (StringUtils.isNotEmpty(log4jFile) && |
| 332 | !log4jFile.equalsIgnoreCase("none")) | |
| 333 | { | |
| 334 | 94 | log4jFile = getRealPath(log4jFile); |
| 335 | ||
| 336 | // | |
| 337 | // Load the config file above into a Properties object and | |
| 338 | // fix up the Application root | |
| 339 | // | |
| 340 | 94 | Properties p = new Properties(); |
| 341 | try | |
| 342 | { | |
| 343 | 94 | p.load(new FileInputStream(log4jFile)); |
| 344 | 94 | p.setProperty(TurbineConstants.APPLICATION_ROOT_KEY, getApplicationRoot()); |
| 345 | 94 | PropertyConfigurator.configure(p); |
| 346 | ||
| 347 | // | |
| 348 | // Rebuild our log object with a configured commons-logging | |
| 349 | 94 | log = LogFactory.getLog(this.getClass()); |
| 350 | ||
| 351 | 94 | log.info("Configured log4j from " + log4jFile); |
| 352 | } | |
| 353 | 0 | catch (FileNotFoundException fnf) |
| 354 | { | |
| 355 | 0 | System.err.println("Could not open Log4J configuration file " |
| 356 | + log4jFile + ": "); | |
| 357 | 0 | fnf.printStackTrace(); |
| 358 | 94 | } |
| 359 | } | |
| 360 | ||
| 361 | // Now report our successful configuration to the world | |
| 362 | 94 | log.info("Loaded configuration (" + confStyle + ") from " + confFile + " (" + confPath + ")"); |
| 363 | ||
| 364 | 94 | setTurbineServletConfig(config); |
| 365 | 94 | setTurbineServletContext(context); |
| 366 | ||
| 367 | 94 | getServiceManager().setApplicationRoot(applicationRoot); |
| 368 | ||
| 369 | // We want to set a few values in the configuration so | |
| 370 | // that ${variable} interpolation will work for | |
| 371 | // | |
| 372 | // ${applicationRoot} | |
| 373 | // ${webappRoot} | |
| 374 | 94 | configuration.setProperty(TurbineConstants.APPLICATION_ROOT_KEY, applicationRoot); |
| 375 | 94 | configuration.setProperty(TurbineConstants.WEBAPP_ROOT_KEY, webappRoot); |
| 376 | ||
| 377 | // Get the default input encoding | |
| 378 | 94 | inputEncoding = configuration.getString( |
| 379 | TurbineConstants.PARAMETER_ENCODING_KEY, | |
| 380 | TurbineConstants.PARAMETER_ENCODING_DEFAULT); | |
| 381 | ||
| 382 | 94 | if (log.isDebugEnabled()) |
| 383 | { | |
| 384 | 94 | log.debug("Input Encoding has been set to " + inputEncoding); |
| 385 | } | |
| 386 | ||
| 387 | 94 | getServiceManager().setConfiguration(configuration); |
| 388 | ||
| 389 | // Initialize the service manager. Services | |
| 390 | // that have its 'earlyInit' property set to | |
| 391 | // a value of 'true' will be started when | |
| 392 | // the service manager is initialized. | |
| 393 | 94 | getServiceManager().init(); |
| 394 | ||
| 395 | // Retrieve the pipeline class and then initialize it. The pipeline | |
| 396 | // handles the processing of a webrequest/response cycle. | |
| 397 | ||
| 398 | 94 | String descriptorPath = |
| 399 | configuration.getString( | |
| 400 | "pipeline.default.descriptor", | |
| 401 | TurbinePipeline.CLASSIC_PIPELINE); | |
| 402 | ||
| 403 | 94 | descriptorPath = getRealPath(descriptorPath); |
| 404 | ||
| 405 | 94 | log.debug("Using descriptor path: " + descriptorPath); |
| 406 | 94 | Reader reader = new BufferedReader(new FileReader(descriptorPath)); |
| 407 | 94 | XStream pipelineMapper = new XStream(new DomDriver()); // does not require XPP3 library |
| 408 | 94 | pipeline = (Pipeline) pipelineMapper.fromXML(reader); |
| 409 | ||
| 410 | 94 | log.debug("Initializing pipeline"); |
| 411 | ||
| 412 | 94 | pipeline.initialize(); |
| 413 | 94 | } |
| 414 | ||
| 415 | /** | |
| 416 | * Create any directories that might be needed during | |
| 417 | * runtime. Right now this includes: | |
| 418 | * | |
| 419 | * <ul> | |
| 420 | * | |
| 421 | * <li>The directory to write the log files to (relative to the | |
| 422 | * web application root), or <code>null</code> for the default of | |
| 423 | * <code>/logs</code>. The directory is specified via the {@link | |
| 424 | * TurbineConstants#LOGGING_ROOT} parameter.</li> | |
| 425 | * | |
| 426 | * </ul> | |
| 427 | * | |
| 428 | * @param context Global initialization parameters. | |
| 429 | * @param config Initialization parameters specific to the Turbine | |
| 430 | * servlet. | |
| 431 | */ | |
| 432 | private static void createRuntimeDirectories(ServletContext context, | |
| 433 | ServletConfig config) | |
| 434 | { | |
| 435 | 94 | String path = findInitParameter(context, config, |
| 436 | TurbineConstants.LOGGING_ROOT_KEY, | |
| 437 | TurbineConstants.LOGGING_ROOT_DEFAULT); | |
| 438 | ||
| 439 | 94 | File logDir = new File(getRealPath(path)); |
| 440 | 94 | if (!logDir.exists()) |
| 441 | { | |
| 442 | // Create the logging directory | |
| 443 | 0 | if (!logDir.mkdirs()) |
| 444 | { | |
| 445 | 0 | System.err.println("Cannot create directory for logs!"); |
| 446 | } | |
| 447 | } | |
| 448 | 94 | } |
| 449 | ||
| 450 | /** | |
| 451 | * Finds the specified servlet configuration/initialization | |
| 452 | * parameter, looking first for a servlet-specific parameter, then | |
| 453 | * for a global parameter, and using the provided default if not | |
| 454 | * found. | |
| 455 | */ | |
| 456 | protected static final String findInitParameter(ServletContext context, | |
| 457 | ServletConfig config, String name, String defaultValue) | |
| 458 | { | |
| 459 | 378 | String path = null; |
| 460 | ||
| 461 | // Try the name as provided first. | |
| 462 | 378 | boolean usingNamespace = name.startsWith(TurbineConstants.CONFIG_NAMESPACE); |
| 463 | while (true) | |
| 464 | { | |
| 465 | 654 | path = config.getInitParameter(name); |
| 466 | 654 | if (StringUtils.isEmpty(path)) |
| 467 | { | |
| 468 | 552 | path = context.getInitParameter(name); |
| 469 | 552 | if (StringUtils.isEmpty(path)) |
| 470 | { | |
| 471 | // The named parameter didn't yield a value. | |
| 472 | 552 | if (usingNamespace) |
| 473 | { | |
| 474 | 276 | path = defaultValue; |
| 475 | } | |
| 476 | else | |
| 477 | { | |
| 478 | // Try again using Turbine's namespace. | |
| 479 | 276 | name = TurbineConstants.CONFIG_NAMESPACE + '.' + name; |
| 480 | 276 | usingNamespace = true; |
| 481 | 276 | continue; |
| 482 | } | |
| 483 | } | |
| 484 | } | |
| 485 | break; | |
| 486 | } | |
| 487 | ||
| 488 | 378 | return path; |
| 489 | } | |
| 490 | ||
| 491 | /** | |
| 492 | * Initializes the services which need <code>PipelineData</code> to | |
| 493 | * initialize themselves (post startup). | |
| 494 | * | |
| 495 | * @param data The first <code>GET</code> request. | |
| 496 | */ | |
| 497 | public final void init(PipelineData data) | |
| 498 | { | |
| 499 | 2 | synchronized (Turbine.class) |
| 500 | { | |
| 501 | 2 | if (firstDoGet) |
| 502 | { | |
| 503 | // All we want to do here is save some servlet | |
| 504 | // information so that services and processes | |
| 505 | // that don't have direct access to a RunData | |
| 506 | // object can still know something about | |
| 507 | // the servlet environment. | |
| 508 | 2 | saveServletInfo(data); |
| 509 | ||
| 510 | // Initialize services with the PipelineData instance | |
| 511 | 2 | TurbineServices services = (TurbineServices)TurbineServices.getInstance(); |
| 512 | ||
| 513 | 2 | for (Iterator i = services.getServiceNames(); i.hasNext();) |
| 514 | { | |
| 515 | 20 | String serviceName = (String)i.next(); |
| 516 | 20 | Object service = services.getService(serviceName); |
| 517 | ||
| 518 | 20 | if (service instanceof Initable) |
| 519 | { | |
| 520 | try | |
| 521 | { | |
| 522 | 20 | ((Initable)service).init(data); |
| 523 | } | |
| 524 | 0 | catch (InitializationException e) |
| 525 | { | |
| 526 | 0 | log.warn("Could not initialize Initable " + serviceName + " with PipelineData", e); |
| 527 | 20 | } |
| 528 | } | |
| 529 | 20 | } |
| 530 | ||
| 531 | // Mark that we're done. | |
| 532 | 2 | firstDoGet = false; |
| 533 | 2 | log.info("Turbine: first Request successful"); |
| 534 | } | |
| 535 | 2 | } |
| 536 | 2 | } |
| 537 | ||
| 538 | /** | |
| 539 | * Return the current configuration with all keys included | |
| 540 | * | |
| 541 | * @return a Configuration Object | |
| 542 | */ | |
| 543 | public static Configuration getConfiguration() | |
| 544 | { | |
| 545 | 1246 | return configuration; |
| 546 | } | |
| 547 | ||
| 548 | /** | |
| 549 | * Return the server name. | |
| 550 | * | |
| 551 | * @return String server name | |
| 552 | */ | |
| 553 | public static String getServerName() | |
| 554 | { | |
| 555 | 2 | return getDefaultServerData().getServerName(); |
| 556 | } | |
| 557 | ||
| 558 | /** | |
| 559 | * Return the server scheme. | |
| 560 | * | |
| 561 | * @return String server scheme | |
| 562 | */ | |
| 563 | public static String getServerScheme() | |
| 564 | { | |
| 565 | 0 | return getDefaultServerData().getServerScheme(); |
| 566 | } | |
| 567 | ||
| 568 | /** | |
| 569 | * Return the server port. | |
| 570 | * | |
| 571 | * @return String server port | |
| 572 | */ | |
| 573 | public static String getServerPort() | |
| 574 | { | |
| 575 | 4 | return Integer.toString(getDefaultServerData().getServerPort()); |
| 576 | } | |
| 577 | ||
| 578 | /** | |
| 579 | * Get the script name. This is the initial script name. | |
| 580 | * Actually this is probably not needed any more. I'll | |
| 581 | * check. jvz. | |
| 582 | * | |
| 583 | * @return String initial script name. | |
| 584 | */ | |
| 585 | public static String getScriptName() | |
| 586 | { | |
| 587 | 2 | return getDefaultServerData().getScriptName(); |
| 588 | } | |
| 589 | ||
| 590 | /** | |
| 591 | * Return the context path. | |
| 592 | * | |
| 593 | * @return String context path | |
| 594 | */ | |
| 595 | public static String getContextPath() | |
| 596 | { | |
| 597 | 0 | return getDefaultServerData().getContextPath(); |
| 598 | } | |
| 599 | ||
| 600 | /** | |
| 601 | * Return all the Turbine Servlet information (Server Name, Port, | |
| 602 | * Scheme in a ServerData structure. This is generated from the | |
| 603 | * values set when initializing the Turbine and may not be correct | |
| 604 | * if you're running in a clustered structure. You can provide default | |
| 605 | * values in your configuration for cases where access is requied before | |
| 606 | * your application is first accessed by a user. This might be used | |
| 607 | * if you need a DataURI and have no RunData object handy. | |
| 608 | * | |
| 609 | * @return An initialized ServerData object | |
| 610 | */ | |
| 611 | public static ServerData getDefaultServerData() | |
| 612 | { | |
| 613 | 26 | if (serverData == null) |
| 614 | { | |
| 615 | 4 | String serverName |
| 616 | = configuration.getString(TurbineConstants.DEFAULT_SERVER_NAME_KEY); | |
| 617 | 4 | if (serverName == null) |
| 618 | { | |
| 619 | 0 | log.error("ServerData Information requested from Turbine before first request!"); |
| 620 | } | |
| 621 | else | |
| 622 | { | |
| 623 | 4 | log.info("ServerData Information retrieved from configuration."); |
| 624 | } | |
| 625 | // Will be overwritten once the first request is run; | |
| 626 | 4 | serverData = new ServerData(serverName, |
| 627 | configuration.getInt(TurbineConstants.DEFAULT_SERVER_PORT_KEY, | |
| 628 | URIConstants.HTTP_PORT), | |
| 629 | configuration.getString(TurbineConstants.DEFAULT_SERVER_SCHEME_KEY, | |
| 630 | URIConstants.HTTP), | |
| 631 | configuration.getString(TurbineConstants.DEFAULT_SCRIPT_NAME_KEY), | |
| 632 | configuration.getString(TurbineConstants.DEFAULT_CONTEXT_PATH_KEY)); | |
| 633 | } | |
| 634 | 26 | return serverData; |
| 635 | } | |
| 636 | ||
| 637 | /** | |
| 638 | * Set the servlet config for this turbine webapp. | |
| 639 | * | |
| 640 | * @param config New servlet config | |
| 641 | */ | |
| 642 | public static void setTurbineServletConfig(ServletConfig config) | |
| 643 | { | |
| 644 | 94 | servletConfig = config; |
| 645 | 94 | } |
| 646 | ||
| 647 | /** | |
| 648 | * Get the servlet config for this turbine webapp. | |
| 649 | * | |
| 650 | * @return ServletConfig | |
| 651 | */ | |
| 652 | public static ServletConfig getTurbineServletConfig() | |
| 653 | { | |
| 654 | 4 | return servletConfig; |
| 655 | } | |
| 656 | ||
| 657 | /** | |
| 658 | * Set the servlet context for this turbine webapp. | |
| 659 | * | |
| 660 | * @param context New servlet context. | |
| 661 | */ | |
| 662 | public static void setTurbineServletContext(ServletContext context) | |
| 663 | { | |
| 664 | 94 | servletContext = context; |
| 665 | 94 | } |
| 666 | ||
| 667 | /** | |
| 668 | * Get the servlet context for this turbine webapp. | |
| 669 | * | |
| 670 | * @return ServletContext | |
| 671 | */ | |
| 672 | public static ServletContext getTurbineServletContext() | |
| 673 | { | |
| 674 | 0 | return servletContext; |
| 675 | } | |
| 676 | ||
| 677 | /** | |
| 678 | * The <code>Servlet</code> destroy method. Invokes | |
| 679 | * <code>ServiceBroker</code> tear down method. | |
| 680 | */ | |
| 681 | public final void destroy() | |
| 682 | { | |
| 683 | // Shut down all Turbine Services. | |
| 684 | 98 | getServiceManager().shutdownServices(); |
| 685 | 98 | System.gc(); |
| 686 | ||
| 687 | 98 | firstInit = true; |
| 688 | 98 | firstDoGet = true; |
| 689 | 98 | log.info("Turbine: Done shutting down!"); |
| 690 | 98 | } |
| 691 | ||
| 692 | /** | |
| 693 | * The primary method invoked when the Turbine servlet is executed. | |
| 694 | * | |
| 695 | * @param req Servlet request. | |
| 696 | * @param res Servlet response. | |
| 697 | * @exception IOException a servlet exception. | |
| 698 | * @exception ServletException a servlet exception. | |
| 699 | */ | |
| 700 | public final void doGet(HttpServletRequest req, HttpServletResponse res) | |
| 701 | throws IOException, ServletException | |
| 702 | { | |
| 703 | 2 | PipelineData pipelineData = null; |
| 704 | ||
| 705 | try | |
| 706 | { | |
| 707 | // Check to make sure that we started up properly. | |
| 708 | 2 | if (initFailure != null) |
| 709 | { | |
| 710 | 0 | throw initFailure; |
| 711 | } | |
| 712 | ||
| 713 | // | |
| 714 | // If the servlet container gives us no clear indication about the | |
| 715 | // Encoding of the contents, set it to our default value. | |
| 716 | 2 | if (req.getCharacterEncoding() == null) |
| 717 | { | |
| 718 | 0 | if (log.isDebugEnabled()) |
| 719 | { | |
| 720 | 0 | log.debug("Changing Input Encoding to " + inputEncoding); |
| 721 | } | |
| 722 | ||
| 723 | try | |
| 724 | { | |
| 725 | 0 | req.setCharacterEncoding(inputEncoding); |
| 726 | } | |
| 727 | 0 | catch (UnsupportedEncodingException uee) |
| 728 | { | |
| 729 | 0 | log.warn("Could not change request encoding to " + inputEncoding, uee); |
| 730 | 0 | } |
| 731 | } | |
| 732 | ||
| 733 | // Get general RunData here... | |
| 734 | // Perform turbine specific initialization below. | |
| 735 | 2 | pipelineData = getRunDataService().getRunData(req, res, getServletConfig()); |
| 736 | // Map runDataMap = new HashMap(); | |
| 737 | //runDataMap.put(RunData.class, data); | |
| 738 | // put the data into the pipeline | |
| 739 | // pipelineData.put(RunData.class, runDataMap); | |
| 740 | ||
| 741 | // If this is the first invocation, perform some | |
| 742 | // initialization. Certain services need RunData to initialize | |
| 743 | // themselves. | |
| 744 | 2 | if (firstDoGet) |
| 745 | { | |
| 746 | 2 | init(pipelineData); |
| 747 | } | |
| 748 | ||
| 749 | // Stages of Pipeline implementation execution | |
| 750 | // configurable via attached Valve implementations in a | |
| 751 | // XML properties file. | |
| 752 | 2 | pipeline.invoke(pipelineData); |
| 753 | ||
| 754 | } | |
| 755 | 2 | catch (Exception e) |
| 756 | { | |
| 757 | 2 | handleException(pipelineData, res, e); |
| 758 | } | |
| 759 | 0 | catch (Throwable t) |
| 760 | { | |
| 761 | 0 | handleException(pipelineData, res, t); |
| 762 | } | |
| 763 | finally | |
| 764 | { | |
| 765 | // Return the used RunData to the factory for recycling. | |
| 766 | 2 | getRunDataService().putRunData((RunData)pipelineData); |
| 767 | 2 | } |
| 768 | 2 | } |
| 769 | ||
| 770 | /** | |
| 771 | * In this application doGet and doPost are the same thing. | |
| 772 | * | |
| 773 | * @param req Servlet request. | |
| 774 | * @param res Servlet response. | |
| 775 | * @exception IOException a servlet exception. | |
| 776 | * @exception ServletException a servlet exception. | |
| 777 | */ | |
| 778 | public final void doPost(HttpServletRequest req, HttpServletResponse res) | |
| 779 | throws IOException, ServletException | |
| 780 | { | |
| 781 | 0 | doGet(req, res); |
| 782 | 0 | } |
| 783 | ||
| 784 | /** | |
| 785 | * Return the servlet info. | |
| 786 | * | |
| 787 | * @return a string with the servlet information. | |
| 788 | */ | |
| 789 | public final String getServletInfo() | |
| 790 | { | |
| 791 | 0 | return "Turbine Servlet"; |
| 792 | } | |
| 793 | ||
| 794 | /** | |
| 795 | * This method is about making sure that we catch and display | |
| 796 | * errors to the screen in one fashion or another. What happens is | |
| 797 | * that it will attempt to show the error using your user defined | |
| 798 | * Error Screen. If that fails, then it will resort to just | |
| 799 | * displaying the error and logging it all over the place | |
| 800 | * including the servlet engine log file, the Turbine log file and | |
| 801 | * on the screen. | |
| 802 | * | |
| 803 | * @param data A Turbine PipelineData object. | |
| 804 | * @param res Servlet response. | |
| 805 | * @param t The exception to report. | |
| 806 | */ | |
| 807 | private final void handleException(PipelineData pipelineData, HttpServletResponse res, | |
| 808 | Throwable t) | |
| 809 | { | |
| 810 | 2 | RunData data = getRunData(pipelineData); |
| 811 | // make sure that the stack trace makes it the log | |
| 812 | 2 | log.error("Turbine.handleException: ", t); |
| 813 | ||
| 814 | 2 | String mimeType = "text/plain"; |
| 815 | try | |
| 816 | { | |
| 817 | // This is where we capture all exceptions and show the | |
| 818 | // Error Screen. | |
| 819 | 2 | data.setStackTrace(ExceptionUtils.getStackTrace(t), t); |
| 820 | ||
| 821 | // setup the screen | |
| 822 | 2 | data.setScreen(configuration.getString( |
| 823 | TurbineConstants.SCREEN_ERROR_KEY, | |
| 824 | TurbineConstants.SCREEN_ERROR_DEFAULT)); | |
| 825 | ||
| 826 | // do more screen setup for template execution if needed | |
| 827 | 2 | if (data.getTemplateInfo() != null) |
| 828 | { | |
| 829 | 2 | data.getTemplateInfo() |
| 830 | .setScreenTemplate(configuration.getString( | |
| 831 | TurbineConstants.TEMPLATE_ERROR_KEY, | |
| 832 | TurbineConstants.TEMPLATE_ERROR_VM)); | |
| 833 | } | |
| 834 | ||
| 835 | // Make sure to not execute an action. | |
| 836 | 2 | data.setAction(""); |
| 837 | ||
| 838 | 2 | PageLoader.getInstance().exec(pipelineData, |
| 839 | configuration.getString(TurbineConstants.PAGE_DEFAULT_KEY, | |
| 840 | TurbineConstants.PAGE_DEFAULT_DEFAULT)); | |
| 841 | ||
| 842 | 0 | data.getResponse().setContentType(data.getContentType()); |
| 843 | 0 | data.getResponse().setStatus(data.getStatusCode()); |
| 844 | } | |
| 845 | // Catch this one because it occurs if some code hasn't been | |
| 846 | // completely re-compiled after a change.. | |
| 847 | 0 | catch (java.lang.NoSuchFieldError e) |
| 848 | { | |
| 849 | try | |
| 850 | { | |
| 851 | 0 | data.getResponse().setContentType(mimeType); |
| 852 | 0 | data.getResponse().setStatus(200); |
| 853 | } | |
| 854 | 0 | catch (Exception ignored) |
| 855 | { | |
| 856 | // ignore | |
| 857 | 0 | } |
| 858 | ||
| 859 | try | |
| 860 | { | |
| 861 | 0 | data.getResponse().getWriter().print("java.lang.NoSuchFieldError: " |
| 862 | + "Please recompile all of your source code."); | |
| 863 | } | |
| 864 | 0 | catch (IOException ignored) |
| 865 | { | |
| 866 | // ignore | |
| 867 | 0 | } |
| 868 | ||
| 869 | 0 | log.error(data.getStackTrace(), e); |
| 870 | } | |
| 871 | // Attempt to do *something* at this point... | |
| 872 | 2 | catch (Throwable reallyScrewedNow) |
| 873 | { | |
| 874 | 2 | StringBuffer msg = new StringBuffer(); |
| 875 | 2 | msg.append("Horrible Exception: "); |
| 876 | 2 | if (data != null) |
| 877 | { | |
| 878 | 2 | msg.append(data.getStackTrace()); |
| 879 | } | |
| 880 | else | |
| 881 | { | |
| 882 | 0 | msg.append(t); |
| 883 | } | |
| 884 | try | |
| 885 | { | |
| 886 | 2 | res.setContentType(mimeType); |
| 887 | 2 | res.setStatus(200); |
| 888 | 2 | res.getWriter().print(msg.toString()); |
| 889 | } | |
| 890 | 0 | catch (Exception ignored) |
| 891 | { | |
| 892 | // ignore | |
| 893 | 2 | } |
| 894 | ||
| 895 | 2 | log.error(reallyScrewedNow.getMessage(), reallyScrewedNow); |
| 896 | 0 | } |
| 897 | 2 | } |
| 898 | ||
| 899 | /** | |
| 900 | * Save some information about this servlet so that | |
| 901 | * it can be utilized by object instances that do not | |
| 902 | * have direct access to RunData. | |
| 903 | * | |
| 904 | * @param data Turbine request data | |
| 905 | */ | |
| 906 | public static synchronized void saveServletInfo(PipelineData data) | |
| 907 | { | |
| 908 | // Store the context path for tools like ContentURI and | |
| 909 | // the UIManager that use webapp context path information | |
| 910 | // for constructing URLs. | |
| 911 | ||
| 912 | // | |
| 913 | // Bundle all the information above up into a convenient structure | |
| 914 | // | |
| 915 | 2 | ServerData requestServerData = (ServerData) data.get(Turbine.class, ServerData.class); |
| 916 | 2 | serverData = (ServerData) requestServerData.clone(); |
| 917 | 2 | } |
| 918 | ||
| 919 | /** | |
| 920 | * Set the application root for the webapp. | |
| 921 | * | |
| 922 | * @param val New app root. | |
| 923 | */ | |
| 924 | public static void setApplicationRoot(String val) | |
| 925 | { | |
| 926 | 94 | applicationRoot = val; |
| 927 | 94 | } |
| 928 | ||
| 929 | /** | |
| 930 | * Get the application root for this Turbine webapp. This | |
| 931 | * concept was started in 3.0 and will allow an app to be | |
| 932 | * developed from a standard CVS layout. With a simple | |
| 933 | * switch the app will work fully within the servlet | |
| 934 | * container for deployment. | |
| 935 | * | |
| 936 | * @return String applicationRoot | |
| 937 | */ | |
| 938 | public static String getApplicationRoot() | |
| 939 | { | |
| 940 | 776 | return applicationRoot; |
| 941 | } | |
| 942 | ||
| 943 | /** | |
| 944 | * Used to get the real path of configuration and resource | |
| 945 | * information. This can be used by an app being | |
| 946 | * developed in a standard CVS layout. | |
| 947 | * | |
| 948 | * @param path path translated to the application root | |
| 949 | * @return the real path | |
| 950 | */ | |
| 951 | public static String getRealPath(String path) | |
| 952 | { | |
| 953 | 680 | if (path.startsWith("/")) |
| 954 | { | |
| 955 | 422 | path = path.substring(1); |
| 956 | } | |
| 957 | ||
| 958 | 680 | return new File(getApplicationRoot(), path).getAbsolutePath(); |
| 959 | } | |
| 960 | ||
| 961 | /** | |
| 962 | * Return an instance of the currently configured Service Manager | |
| 963 | * | |
| 964 | * @return A service Manager instance | |
| 965 | */ | |
| 966 | private ServiceManager getServiceManager() | |
| 967 | { | |
| 968 | 380 | return TurbineServices.getInstance(); |
| 969 | } | |
| 970 | ||
| 971 | /** | |
| 972 | * Get a RunData from the pipelineData. Once RunData is fully replaced | |
| 973 | * by PipelineData this should not be required. | |
| 974 | * @param pipelineData | |
| 975 | * @return | |
| 976 | */ | |
| 977 | private RunData getRunData(PipelineData pipelineData) | |
| 978 | { | |
| 979 | 2 | RunData data = null; |
| 980 | 2 | data = (RunData)pipelineData; |
| 981 | 2 | return data; |
| 982 | } | |
| 983 | ||
| 984 | ||
| 985 | /** | |
| 986 | * Returns the default input encoding for the servlet. | |
| 987 | * | |
| 988 | * @return the default input encoding. | |
| 989 | */ | |
| 990 | public String getDefaultInputEncoding() { | |
| 991 | 8 | return inputEncoding; |
| 992 | } | |
| 993 | ||
| 994 | /** | |
| 995 | * Static Helper method for looking up the RunDataService | |
| 996 | * @return A RunDataService | |
| 997 | */ | |
| 998 | private static RunDataService getRunDataService() | |
| 999 | { | |
| 1000 | 98 | return (RunDataService) TurbineServices |
| 1001 | .getInstance().getService(RunDataService.SERVICE_NAME); | |
| 1002 | } | |
| 1003 | } |