Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
Turbine |
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| 2.896551724137931;2,897 | ||||
Turbine$1 |
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| 2.896551724137931;2,897 | ||||
Turbine$ConfigurationStyle |
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| 2.896551724137931;2,897 |
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.File; | |
23 | import java.io.FileInputStream; | |
24 | import java.io.FileNotFoundException; | |
25 | import java.io.IOException; | |
26 | import java.io.InputStream; | |
27 | import java.io.UnsupportedEncodingException; | |
28 | import java.util.HashMap; | |
29 | import java.util.Iterator; | |
30 | import java.util.Map; | |
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 | import javax.xml.bind.JAXBContext; | |
40 | import javax.xml.bind.Unmarshaller; | |
41 | import javax.xml.parsers.FactoryConfigurationError; | |
42 | ||
43 | import org.apache.commons.configuration.Configuration; | |
44 | import org.apache.commons.configuration.DefaultConfigurationBuilder; | |
45 | import org.apache.commons.configuration.PropertiesConfiguration; | |
46 | import org.apache.commons.io.IOUtils; | |
47 | import org.apache.commons.lang.StringUtils; | |
48 | import org.apache.commons.lang.exception.ExceptionUtils; | |
49 | import org.apache.commons.logging.Log; | |
50 | import org.apache.commons.logging.LogFactory; | |
51 | import org.apache.log4j.PropertyConfigurator; | |
52 | import org.apache.log4j.xml.DOMConfigurator; | |
53 | import org.apache.turbine.modules.PageLoader; | |
54 | import org.apache.turbine.pipeline.Pipeline; | |
55 | import org.apache.turbine.pipeline.PipelineData; | |
56 | import org.apache.turbine.pipeline.TurbinePipeline; | |
57 | import org.apache.turbine.services.Initable; | |
58 | import org.apache.turbine.services.InitializationException; | |
59 | import org.apache.turbine.services.ServiceManager; | |
60 | import org.apache.turbine.services.TurbineServices; | |
61 | import org.apache.turbine.services.rundata.RunDataService; | |
62 | import org.apache.turbine.services.template.TemplateService; | |
63 | import org.apache.turbine.util.RunData; | |
64 | import org.apache.turbine.util.ServerData; | |
65 | import org.apache.turbine.util.TurbineConfig; | |
66 | import org.apache.turbine.util.TurbineException; | |
67 | import org.apache.turbine.util.uri.URIConstants; | |
68 | ||
69 | /** | |
70 | * Turbine is the main servlet for the entire system. It is <code>final</code> | |
71 | * because you should <i>not</i> ever need to subclass this servlet. If you | |
72 | * need to perform initialization of a service, then you should implement the | |
73 | * Services API and let your code be initialized by it. | |
74 | * If you need to override something in the <code>doGet()</code> or | |
75 | * <code>doPost()</code> methods, edit the TurbineResources.properties file and | |
76 | * specify your own classes there. | |
77 | * <p> | |
78 | * Turbine servlet recognizes the following initialization parameters. | |
79 | * <ul> | |
80 | * <li><code>properties</code> the path to TurbineResources.properties file | |
81 | * used by the default implementation of <code>ResourceService</code>, relative | |
82 | * to the application root.</li> | |
83 | * <li><code>basedir</code> this parameter is used <strong>only</strong> if your | |
84 | * application server does not support web applications, or the or does not | |
85 | * support <code>ServletContext.getRealPath(String)</code> method correctly. | |
86 | * You can use this parameter to specify the directory within the server's | |
87 | * filesystem, that is the base of your web application.</li> | |
88 | * </ul> | |
89 | * | |
90 | * @author <a href="mailto:jon@latchkey.com">Jon S. Stevens</a> | |
91 | * @author <a href="mailto:bmclaugh@algx.net">Brett McLaughlin</a> | |
92 | * @author <a href="mailto:greg@shwoop.com">Greg Ritter</a> | |
93 | * @author <a href="mailto:john.mcnally@clearink.com">John D. McNally</a> | |
94 | * @author <a href="mailto:frank.kim@clearink.com">Frank Y. Kim</a> | |
95 | * @author <a href="mailto:krzewski@e-point.pl">Rafal Krzewski</a> | |
96 | * @author <a href="mailto:jvanzyl@apache.org">Jason van Zyl</a> | |
97 | * @author <a href="mailto:sean@informage.net">Sean Legassick</a> | |
98 | * @author <a href="mailto:mpoeschl@marmot.at">Martin Poeschl</a> | |
99 | * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a> | |
100 | * @author <a href="mailto:quintonm@bellsouth.net">Quinton McCombs</a> | |
101 | * @author <a href="mailto:epugh@upstate.com">Eric Pugh</a> | |
102 | * @author <a href="mailto:peter@courcoux.biz">Peter Courcoux</a> | |
103 | * @author <a href="mailto:tv@apache.org">Thomas Vandahl</a> | |
104 | * @version $Id: Turbine.java 1817310 2017-12-06 16:51:52Z painter $ | |
105 | */ | |
106 | 47 | public class Turbine |
107 | extends HttpServlet | |
108 | { | |
109 | /** Serialversion */ | |
110 | private static final long serialVersionUID = -6317118078613623990L; | |
111 | ||
112 | /** | |
113 | * Name of path info parameter used to indicate the redirected stage of | |
114 | * a given user's initial Turbine request | |
115 | */ | |
116 | public static final String REDIRECTED_PATHINFO_NAME = "redirected"; | |
117 | ||
118 | /** The base directory key */ | |
119 | public static final String BASEDIR_KEY = "basedir"; | |
120 | ||
121 | /** | |
122 | * In certain situations the init() method is called more than once, | |
123 | * sometimes even concurrently. This causes bad things to happen, | |
124 | * so we use this flag to prevent it. | |
125 | */ | |
126 | 35 | private static boolean firstInit = true; |
127 | ||
128 | /** | |
129 | * The pipeline to use when processing requests. | |
130 | */ | |
131 | 35 | private static Pipeline pipeline = null; |
132 | ||
133 | /** Whether init succeeded or not. */ | |
134 | 35 | private static Throwable initFailure = null; |
135 | ||
136 | /** | |
137 | * Should initialization activities be performed during doGet() execution? | |
138 | */ | |
139 | 35 | private static boolean firstDoGet = true; |
140 | ||
141 | /** | |
142 | * Keep all the properties of the web server in a convenient data | |
143 | * structure | |
144 | */ | |
145 | 35 | private static volatile ServerData serverData = null; |
146 | ||
147 | /** The base from which the Turbine application will operate. */ | |
148 | private static String applicationRoot; | |
149 | ||
150 | /** Servlet config for this Turbine webapp. */ | |
151 | private static ServletConfig servletConfig; | |
152 | ||
153 | /** Servlet context for this Turbine webapp. */ | |
154 | private static ServletContext servletContext; | |
155 | ||
156 | /** | |
157 | * The webapp root where the Turbine application | |
158 | * is running in the servlet container. | |
159 | * This might differ from the application root. | |
160 | */ | |
161 | private static String webappRoot; | |
162 | ||
163 | /** Our internal configuration object */ | |
164 | 35 | private static Configuration configuration = null; |
165 | ||
166 | /** Default Input encoding if the servlet container does not report an encoding */ | |
167 | 47 | private String inputEncoding = null; |
168 | ||
169 | /** Which configuration method is being used */ | |
170 | 185 | private enum ConfigurationStyle |
171 | { | |
172 | 34 | XML, |
173 | 34 | PROPERTIES, |
174 | 34 | UNSET |
175 | } | |
176 | ||
177 | /** Logging class from commons.logging */ | |
178 | 35 | private static Log log = LogFactory.getLog(Turbine.class); |
179 | ||
180 | /** | |
181 | * This init method will load the default resources from a | |
182 | * properties file. | |
183 | * | |
184 | * This method is called by init(ServletConfig config) | |
185 | * | |
186 | * @throws ServletException a servlet exception. | |
187 | */ | |
188 | @Override | |
189 | public void init() throws ServletException | |
190 | { | |
191 | 44 | synchronized (Turbine.class) |
192 | { | |
193 | 44 | super.init(); |
194 | ||
195 | 44 | if (!firstInit) |
196 | { | |
197 | 1 | log.info("Double initialization of Turbine was attempted!"); |
198 | 1 | return; |
199 | } | |
200 | // executing init will trigger some static initializers, so we have | |
201 | // only one chance. | |
202 | 43 | firstInit = false; |
203 | 43 | ServletConfig config = getServletConfig(); |
204 | ||
205 | try | |
206 | { | |
207 | 43 | ServletContext context = config.getServletContext(); |
208 | ||
209 | 43 | configure(config, context); |
210 | ||
211 | 39 | TemplateService templateService = |
212 | (TemplateService)getServiceManager().getService(TemplateService.SERVICE_NAME); | |
213 | 39 | if (templateService == null) |
214 | { | |
215 | 0 | throw new TurbineException("No Template Service configured!"); |
216 | } | |
217 | ||
218 | 39 | if (getRunDataService() == null) |
219 | { | |
220 | 0 | throw new TurbineException("No RunData Service configured!"); |
221 | } | |
222 | } | |
223 | 4 | catch (Throwable e) |
224 | { | |
225 | // save the exception to complain loudly later :-) | |
226 | 4 | initFailure = e; |
227 | 4 | log.fatal("Turbine: init() failed: ", e); |
228 | 4 | throw new ServletException("Turbine: init() failed", e); |
229 | 39 | } |
230 | ||
231 | 39 | log.info("Turbine: init() Ready to Rumble!"); |
232 | 39 | } |
233 | 39 | } |
234 | ||
235 | /** | |
236 | * Read the master configuration file in, configure logging | |
237 | * and start up any early services. | |
238 | * | |
239 | * @param config The Servlet Configuration supplied by the container | |
240 | * @param context The Servlet Context supplied by the container | |
241 | * | |
242 | * @throws Exception A problem occurred while reading the configuration or performing early startup | |
243 | */ | |
244 | ||
245 | protected void configure(ServletConfig config, ServletContext context) | |
246 | throws Exception | |
247 | { | |
248 | ||
249 | // Set the application root. This defaults to the webapp | |
250 | // context if not otherwise set. This is to allow 2.1 apps | |
251 | // to be developed from CVS. This feature will carry over | |
252 | // into 3.0. | |
253 | 43 | applicationRoot = findInitParameter(context, config, |
254 | TurbineConstants.APPLICATION_ROOT_KEY, | |
255 | TurbineConstants.APPLICATION_ROOT_DEFAULT); | |
256 | ||
257 | 43 | webappRoot = context.getRealPath("/"); |
258 | // log.info("Web Application root is " + webappRoot); | |
259 | // log.info("Application root is " + applicationRoot); | |
260 | ||
261 | 43 | if (applicationRoot == null || applicationRoot.equals(TurbineConstants.WEB_CONTEXT)) |
262 | { | |
263 | 43 | applicationRoot = webappRoot; |
264 | // log.info("got empty or 'webContext' Application root. Application root now: " + applicationRoot); | |
265 | } | |
266 | ||
267 | // Set the applicationRoot for this webapp. | |
268 | 43 | setApplicationRoot(applicationRoot); |
269 | ||
270 | // Create any directories that need to be setup for | |
271 | // a running Turbine application. | |
272 | 43 | createRuntimeDirectories(context, config); |
273 | ||
274 | // | |
275 | // Now we run the Turbine configuration code. There are two ways | |
276 | // to configure Turbine: | |
277 | // | |
278 | // a) By supplying an web.xml init parameter called "configuration" | |
279 | // | |
280 | // <init-param> | |
281 | // <param-name>configuration</param-name> | |
282 | // <param-value>/WEB-INF/conf/turbine.xml</param-value> | |
283 | // </init-param> | |
284 | // | |
285 | // This loads an XML based configuration file. | |
286 | // | |
287 | // b) By supplying an web.xml init parameter called "properties" | |
288 | // | |
289 | // <init-param> | |
290 | // <param-name>properties</param-name> | |
291 | // <param-value>/WEB-INF/conf/TurbineResources.properties</param-value> | |
292 | // </init-param> | |
293 | // | |
294 | // This loads a Properties based configuration file. Actually, these are | |
295 | // extended properties as provided by commons-configuration | |
296 | // | |
297 | // If neither a) nor b) is supplied, Turbine will fall back to the | |
298 | // known behaviour of loading a properties file called | |
299 | // /WEB-INF/conf/TurbineResources.properties relative to the | |
300 | // web application root. | |
301 | ||
302 | 43 | ConfigurationStyle confStyle = ConfigurationStyle.UNSET; |
303 | // first test | |
304 | 43 | String confFile= findInitParameter(context, config, |
305 | TurbineConfig.CONFIGURATION_PATH_KEY, | |
306 | null); | |
307 | 43 | if (StringUtils.isNotEmpty(confFile)) |
308 | { | |
309 | 2 | confStyle = ConfigurationStyle.XML; |
310 | } | |
311 | else // second test | |
312 | { | |
313 | 41 | confFile = findInitParameter(context, config, |
314 | TurbineConfig.PROPERTIES_PATH_KEY, | |
315 | null); | |
316 | 41 | if (StringUtils.isNotEmpty((confFile)) ) |
317 | { | |
318 | 41 | confStyle = ConfigurationStyle.PROPERTIES; |
319 | } | |
320 | } | |
321 | // more tests .. | |
322 | // last test | |
323 | 43 | if (confStyle == ConfigurationStyle.UNSET) |
324 | { // last resort | |
325 | 0 | confFile = findInitParameter(context, config, |
326 | TurbineConfig.PROPERTIES_PATH_KEY, | |
327 | TurbineConfig.PROPERTIES_PATH_DEFAULT); | |
328 | 0 | confStyle = ConfigurationStyle.PROPERTIES; |
329 | } | |
330 | // now begin loading | |
331 | 33 | switch (confStyle) |
332 | { | |
333 | case XML: | |
334 | 2 | if (confFile.startsWith( "/" )) |
335 | { | |
336 | 0 | confFile = confFile.substring( 1 ); // cft. RFC2396 should not start with a slash, if not absolute path |
337 | } | |
338 | 2 | DefaultConfigurationBuilder configurationBuilder = new DefaultConfigurationBuilder(confFile); |
339 | ||
340 | // relative base path used for this and child configuration files | |
341 | 2 | String confPath = new File(getApplicationRoot()).toURI().toString(); |
342 | 2 | configurationBuilder.setBasePath(confPath); |
343 | 2 | configuration = configurationBuilder.getConfiguration(); |
344 | 2 | break; |
345 | case PROPERTIES: | |
346 | 41 | configuration = new PropertiesConfiguration(getRealPath(confFile)); |
347 | 41 | break; |
348 | default: | |
349 | break; | |
350 | } | |
351 | // | |
352 | // Set up logging as soon as possible | |
353 | // | |
354 | 43 | configureLogging(); |
355 | ||
356 | // Now report our successful configuration to the world | |
357 | 43 | log.info("Loaded configuration (" + confStyle + ") from " + confFile + " style: " + configuration.toString()); |
358 | ||
359 | 43 | setTurbineServletConfig(config); |
360 | 43 | setTurbineServletContext(context); |
361 | ||
362 | 43 | getServiceManager().setApplicationRoot(applicationRoot); |
363 | ||
364 | // We want to set a few values in the configuration so | |
365 | // that ${variable} interpolation will work for | |
366 | // | |
367 | // ${applicationRoot} | |
368 | // ${webappRoot} | |
369 | 43 | configuration.setProperty(TurbineConstants.APPLICATION_ROOT_KEY, applicationRoot); |
370 | 43 | configuration.setProperty(TurbineConstants.WEBAPP_ROOT_KEY, webappRoot); |
371 | ||
372 | // Get the default input encoding | |
373 | 43 | inputEncoding = configuration.getString( |
374 | TurbineConstants.PARAMETER_ENCODING_KEY, | |
375 | TurbineConstants.PARAMETER_ENCODING_DEFAULT); | |
376 | ||
377 | // RunData needs the following encoding set to override the default charset | |
378 | 43 | configuration.setProperty(TurbineConstants.LOCALE_DEFAULT_CHARSET_KEY, inputEncoding); |
379 | ||
380 | 43 | if (log.isDebugEnabled()) |
381 | { | |
382 | 43 | log.debug("Input Encoding has been set to " + inputEncoding); |
383 | } | |
384 | ||
385 | 43 | getServiceManager().setConfiguration(configuration); |
386 | ||
387 | // Initialize the service manager. Services | |
388 | // that have its 'earlyInit' property set to | |
389 | // a value of 'true' will be started when | |
390 | // the service manager is initialized. | |
391 | 43 | getServiceManager().init(); |
392 | ||
393 | // Retrieve the pipeline class and then initialize it. The pipeline | |
394 | // handles the processing of a webrequest/response cycle. | |
395 | 43 | String descriptorPath = |
396 | configuration.getString( | |
397 | "pipeline.default.descriptor", | |
398 | TurbinePipeline.CLASSIC_PIPELINE); | |
399 | ||
400 | 43 | if (log.isDebugEnabled()) |
401 | { | |
402 | 43 | log.debug("Using descriptor path: " + descriptorPath); |
403 | } | |
404 | ||
405 | // context resource path has to begin with slash, cft. context,getResource | |
406 | 43 | if (!descriptorPath.startsWith( "/" )) { |
407 | 20 | descriptorPath = "/" + descriptorPath; |
408 | } | |
409 | ||
410 | 43 | InputStream reader = context.getResourceAsStream(descriptorPath); |
411 | 43 | JAXBContext jaxb = JAXBContext.newInstance(TurbinePipeline.class); |
412 | 43 | Unmarshaller unmarshaller = jaxb.createUnmarshaller(); |
413 | 43 | pipeline = (Pipeline) unmarshaller.unmarshal(reader); |
414 | 43 | IOUtils.closeQuietly(reader); |
415 | ||
416 | 43 | log.debug("Initializing pipeline"); |
417 | ||
418 | 43 | pipeline.initialize(); |
419 | 39 | } |
420 | ||
421 | /** | |
422 | * Configure the logging facilities of Turbine | |
423 | * | |
424 | * @throws IOException if the configuration file handling fails. | |
425 | */ | |
426 | protected void configureLogging() throws IOException | |
427 | { | |
428 | 43 | String log4jFile = configuration.getString(TurbineConstants.LOG4J_CONFIG_FILE, |
429 | TurbineConstants.LOG4J_CONFIG_FILE_DEFAULT); | |
430 | ||
431 | 43 | if (StringUtils.isNotEmpty(log4jFile) && |
432 | !log4jFile.equalsIgnoreCase("none")) | |
433 | { | |
434 | 43 | log4jFile = getRealPath(log4jFile); |
435 | 43 | boolean success = false; |
436 | ||
437 | 43 | if (log4jFile.endsWith(".xml")) |
438 | { | |
439 | // load XML type configuration | |
440 | // NOTE: Only system property expansion available | |
441 | try | |
442 | { | |
443 | 0 | DOMConfigurator.configure(log4jFile); |
444 | 0 | success = true; |
445 | } | |
446 | 0 | catch (FactoryConfigurationError e) |
447 | { | |
448 | 0 | System.err.println("Could not configure Log4J from configuration file " |
449 | + log4jFile + ": "); | |
450 | 0 | e.printStackTrace(); |
451 | 0 | } |
452 | } | |
453 | else | |
454 | { | |
455 | // | |
456 | // Load the config file above into a Properties object and | |
457 | // fix up the Application root | |
458 | // | |
459 | 43 | Properties p = new Properties(); |
460 | 43 | FileInputStream fis = null; |
461 | ||
462 | try | |
463 | { | |
464 | 43 | fis = new FileInputStream(log4jFile); |
465 | 43 | p.load(fis); |
466 | 43 | p.setProperty(TurbineConstants.APPLICATION_ROOT_KEY, getApplicationRoot()); |
467 | 43 | PropertyConfigurator.configure(p); |
468 | 43 | success = true; |
469 | } | |
470 | 0 | catch (FileNotFoundException fnf) |
471 | { | |
472 | 0 | System.err.println("Could not open Log4J configuration file " |
473 | + log4jFile + ": "); | |
474 | 0 | fnf.printStackTrace(); |
475 | } | |
476 | finally | |
477 | { | |
478 | 43 | if (fis != null) |
479 | { | |
480 | 43 | fis.close(); |
481 | } | |
482 | } | |
483 | } | |
484 | ||
485 | 43 | if (success) |
486 | { | |
487 | // Rebuild our log object with a configured commons-logging | |
488 | 43 | log = LogFactory.getLog(this.getClass()); |
489 | 43 | log.info("Configured log4j from " + log4jFile); |
490 | } | |
491 | } | |
492 | 43 | } |
493 | /** | |
494 | * Create any directories that might be needed during | |
495 | * runtime. Right now this includes: | |
496 | * | |
497 | * <ul> | |
498 | * | |
499 | * <li>The directory to write the log files to (relative to the | |
500 | * web application root), or <code>null</code> for the default of | |
501 | * <code>/logs</code>. The directory is specified via the {@link | |
502 | * TurbineConstants#LOGGING_ROOT_KEY} parameter.</li> | |
503 | * | |
504 | * </ul> | |
505 | * | |
506 | * @param context Global initialization parameters. | |
507 | * @param config Initialization parameters specific to the Turbine | |
508 | * servlet. | |
509 | */ | |
510 | protected void createRuntimeDirectories(ServletContext context, | |
511 | ServletConfig config) | |
512 | { | |
513 | 43 | String path = findInitParameter(context, config, |
514 | TurbineConstants.LOGGING_ROOT_KEY, | |
515 | TurbineConstants.LOGGING_ROOT_DEFAULT); | |
516 | ||
517 | 43 | File logDir = new File(getRealPath(path)); |
518 | 43 | if (!logDir.exists()) |
519 | { | |
520 | // Create the logging directory | |
521 | 0 | if (!logDir.mkdirs()) |
522 | { | |
523 | 0 | System.err.println("Cannot create directory for logs!"); |
524 | } | |
525 | } | |
526 | 43 | } |
527 | ||
528 | /** | |
529 | * Finds the specified servlet configuration/initialization | |
530 | * parameter, looking first for a servlet-specific parameter, then | |
531 | * for a global parameter, and using the provided default if not | |
532 | * found. | |
533 | */ | |
534 | protected String findInitParameter(ServletContext context, | |
535 | ServletConfig config, String name, String defaultValue) | |
536 | { | |
537 | 172 | String path = null; |
538 | ||
539 | // Try the name as provided first. | |
540 | 172 | boolean usingNamespace = name.startsWith(TurbineConstants.CONFIG_NAMESPACE); |
541 | while (true) | |
542 | { | |
543 | 297 | path = config.getInitParameter(name); |
544 | 297 | if (StringUtils.isEmpty(path)) |
545 | { | |
546 | 250 | path = context.getInitParameter(name); |
547 | 250 | if (StringUtils.isEmpty(path)) |
548 | { | |
549 | // The named parameter didn't yield a value. | |
550 | 250 | if (usingNamespace) |
551 | { | |
552 | 125 | path = defaultValue; |
553 | } | |
554 | else | |
555 | { | |
556 | // Try again using Turbine's namespace. | |
557 | 125 | name = TurbineConstants.CONFIG_NAMESPACE + '.' + name; |
558 | 125 | usingNamespace = true; |
559 | 125 | continue; |
560 | } | |
561 | } | |
562 | } | |
563 | break; | |
564 | } | |
565 | ||
566 | 172 | return path; |
567 | } | |
568 | ||
569 | /** | |
570 | * Initializes the services which need <code>PipelineData</code> to | |
571 | * initialize themselves (post startup). | |
572 | * | |
573 | * @param data The first <code>GET</code> request. | |
574 | */ | |
575 | public void init(PipelineData data) | |
576 | { | |
577 | 1 | synchronized (Turbine.class) |
578 | { | |
579 | 1 | if (firstDoGet) |
580 | { | |
581 | // All we want to do here is save some servlet | |
582 | // information so that services and processes | |
583 | // that don't have direct access to a RunData | |
584 | // object can still know something about | |
585 | // the servlet environment. | |
586 | 1 | saveServletInfo(data); |
587 | ||
588 | // Initialize services with the PipelineData instance | |
589 | 1 | TurbineServices services = (TurbineServices)getServiceManager(); |
590 | ||
591 | 1 | for (Iterator<String> i = services.getServiceNames(); i.hasNext();) |
592 | { | |
593 | 10 | String serviceName = i.next(); |
594 | 10 | Object service = services.getService(serviceName); |
595 | ||
596 | 10 | if (service instanceof Initable) |
597 | { | |
598 | try | |
599 | { | |
600 | 10 | ((Initable)service).init(data); |
601 | } | |
602 | 0 | catch (InitializationException e) |
603 | { | |
604 | 0 | log.warn("Could not initialize Initable " + serviceName + " with PipelineData", e); |
605 | 10 | } |
606 | } | |
607 | 10 | } |
608 | ||
609 | // Mark that we're done. | |
610 | 1 | firstDoGet = false; |
611 | 1 | log.info("Turbine: first Request successful"); |
612 | } | |
613 | 1 | } |
614 | 1 | } |
615 | ||
616 | /** | |
617 | * Return the current configuration with all keys included | |
618 | * | |
619 | * @return a Configuration Object | |
620 | */ | |
621 | public static Configuration getConfiguration() | |
622 | { | |
623 | 769 | return configuration; |
624 | } | |
625 | ||
626 | /** | |
627 | * Return the server name. | |
628 | * | |
629 | * @return String server name | |
630 | */ | |
631 | public static String getServerName() | |
632 | { | |
633 | 1 | return getDefaultServerData().getServerName(); |
634 | } | |
635 | ||
636 | /** | |
637 | * Return the server scheme. | |
638 | * | |
639 | * @return String server scheme | |
640 | */ | |
641 | public static String getServerScheme() | |
642 | { | |
643 | 0 | return getDefaultServerData().getServerScheme(); |
644 | } | |
645 | ||
646 | /** | |
647 | * Return the server port. | |
648 | * | |
649 | * @return String server port | |
650 | */ | |
651 | public static String getServerPort() | |
652 | { | |
653 | 2 | return Integer.toString(getDefaultServerData().getServerPort()); |
654 | } | |
655 | ||
656 | /** | |
657 | * Get the script name. This is the initial script name. | |
658 | * Actually this is probably not needed any more. I'll | |
659 | * check. jvz. | |
660 | * | |
661 | * @return String initial script name. | |
662 | */ | |
663 | public static String getScriptName() | |
664 | { | |
665 | 1 | return getDefaultServerData().getScriptName(); |
666 | } | |
667 | ||
668 | /** | |
669 | * Return the context path. | |
670 | * | |
671 | * @return String context path | |
672 | */ | |
673 | public static String getContextPath() | |
674 | { | |
675 | 0 | return getDefaultServerData().getContextPath(); |
676 | } | |
677 | ||
678 | /** | |
679 | * Return all the Turbine Servlet information (Server Name, Port, | |
680 | * Scheme in a ServerData structure. This is generated from the | |
681 | * values set when initializing the Turbine and may not be correct | |
682 | * if you're running in a clustered structure. You can provide default | |
683 | * values in your configuration for cases where access is requied before | |
684 | * your application is first accessed by a user. This might be used | |
685 | * if you need a DataURI and have no RunData object handy. | |
686 | * | |
687 | * @return An initialized ServerData object | |
688 | */ | |
689 | public static ServerData getDefaultServerData() | |
690 | { | |
691 | 6 | if (serverData == null) |
692 | { | |
693 | 1 | String serverName |
694 | = configuration.getString(TurbineConstants.DEFAULT_SERVER_NAME_KEY); | |
695 | 1 | if (serverName == null) |
696 | { | |
697 | 0 | log.error("ServerData Information requested from Turbine before first request!"); |
698 | } | |
699 | else | |
700 | { | |
701 | 1 | log.info("ServerData Information retrieved from configuration."); |
702 | } | |
703 | // Will be overwritten once the first request is run; | |
704 | 1 | serverData = new ServerData(serverName, |
705 | configuration.getInt(TurbineConstants.DEFAULT_SERVER_PORT_KEY, | |
706 | URIConstants.HTTP_PORT), | |
707 | configuration.getString(TurbineConstants.DEFAULT_SERVER_SCHEME_KEY, | |
708 | URIConstants.HTTP), | |
709 | configuration.getString(TurbineConstants.DEFAULT_SCRIPT_NAME_KEY), | |
710 | configuration.getString(TurbineConstants.DEFAULT_CONTEXT_PATH_KEY)); | |
711 | } | |
712 | 6 | return serverData; |
713 | } | |
714 | ||
715 | /** | |
716 | * Set the servlet config for this turbine webapp. | |
717 | * | |
718 | * @param config New servlet config | |
719 | */ | |
720 | public static void setTurbineServletConfig(ServletConfig config) | |
721 | { | |
722 | 43 | servletConfig = config; |
723 | 43 | } |
724 | ||
725 | /** | |
726 | * Get the servlet config for this turbine webapp. | |
727 | * | |
728 | * @return ServletConfig | |
729 | */ | |
730 | public static ServletConfig getTurbineServletConfig() | |
731 | { | |
732 | 39 | return servletConfig; |
733 | } | |
734 | ||
735 | /** | |
736 | * Set the servlet context for this turbine webapp. | |
737 | * | |
738 | * @param context New servlet context. | |
739 | */ | |
740 | public static void setTurbineServletContext(ServletContext context) | |
741 | { | |
742 | 43 | servletContext = context; |
743 | 43 | } |
744 | ||
745 | /** | |
746 | * Get the servlet context for this turbine webapp. | |
747 | * | |
748 | * @return ServletContext | |
749 | */ | |
750 | public static ServletContext getTurbineServletContext() | |
751 | { | |
752 | 0 | return servletContext; |
753 | } | |
754 | ||
755 | /** | |
756 | * The <code>Servlet</code> destroy method. Invokes | |
757 | * <code>ServiceBroker</code> tear down method. | |
758 | */ | |
759 | @Override | |
760 | public void destroy() | |
761 | { | |
762 | // Shut down all Turbine Services. | |
763 | 46 | getServiceManager().shutdownServices(); |
764 | ||
765 | 46 | firstInit = true; |
766 | 46 | firstDoGet = true; |
767 | 46 | log.info("Turbine: Done shutting down!"); |
768 | 46 | } |
769 | ||
770 | /** | |
771 | * The primary method invoked when the Turbine servlet is executed. | |
772 | * | |
773 | * @param req Servlet request. | |
774 | * @param res Servlet response. | |
775 | * @throws IOException a servlet exception. | |
776 | * @throws ServletException a servlet exception. | |
777 | */ | |
778 | @Override | |
779 | public void doGet(HttpServletRequest req, HttpServletResponse res) | |
780 | throws IOException, ServletException | |
781 | { | |
782 | 1 | PipelineData pipelineData = null; |
783 | ||
784 | try | |
785 | { | |
786 | // Check to make sure that we started up properly. | |
787 | 1 | if (initFailure != null) |
788 | { | |
789 | 0 | throw initFailure; |
790 | } | |
791 | ||
792 | // | |
793 | // If the servlet container gives us no clear indication about the | |
794 | // Encoding of the contents, set it to our default value. | |
795 | 1 | if (req.getCharacterEncoding() == null) |
796 | { | |
797 | 0 | if (log.isDebugEnabled()) |
798 | { | |
799 | 0 | log.debug("Changing Input Encoding to " + inputEncoding); |
800 | } | |
801 | ||
802 | try | |
803 | { | |
804 | 0 | req.setCharacterEncoding(inputEncoding); |
805 | } | |
806 | 0 | catch (UnsupportedEncodingException uee) |
807 | { | |
808 | 0 | log.warn("Could not change request encoding to " + inputEncoding, uee); |
809 | 0 | } |
810 | } | |
811 | ||
812 | // Get general RunData here... | |
813 | // Perform turbine specific initialization below. | |
814 | 1 | pipelineData = getRunDataService().getRunData(req, res, getServletConfig()); |
815 | 1 | Map<Class<?>, Object> runDataMap = new HashMap<Class<?>, Object>(); |
816 | 1 | runDataMap.put(RunData.class, pipelineData); |
817 | // put the data into the pipeline | |
818 | 1 | pipelineData.put(RunData.class, runDataMap); |
819 | ||
820 | // If this is the first invocation, perform some | |
821 | // initialization. Certain services need RunData to initialize | |
822 | // themselves. | |
823 | 1 | if (firstDoGet) |
824 | { | |
825 | 1 | init(pipelineData); |
826 | } | |
827 | ||
828 | // Stages of Pipeline implementation execution | |
829 | // configurable via attached Valve implementations in a | |
830 | // XML properties file. | |
831 | 1 | pipeline.invoke(pipelineData); |
832 | ||
833 | } | |
834 | 1 | catch (Exception e) |
835 | { | |
836 | 1 | handleException(pipelineData, res, e); |
837 | } | |
838 | 0 | catch (Throwable t) |
839 | { | |
840 | 0 | handleException(pipelineData, res, t); |
841 | } | |
842 | finally | |
843 | { | |
844 | // Return the used RunData to the factory for recycling. | |
845 | 1 | getRunDataService().putRunData((RunData)pipelineData); |
846 | 1 | } |
847 | 1 | } |
848 | ||
849 | /** | |
850 | * In this application doGet and doPost are the same thing. | |
851 | * | |
852 | * @param req Servlet request. | |
853 | * @param res Servlet response. | |
854 | * @throws IOException a servlet exception. | |
855 | * @throws ServletException a servlet exception. | |
856 | */ | |
857 | @Override | |
858 | public void doPost(HttpServletRequest req, HttpServletResponse res) | |
859 | throws IOException, ServletException | |
860 | { | |
861 | 0 | doGet(req, res); |
862 | 0 | } |
863 | ||
864 | /** | |
865 | * Return the servlet info. | |
866 | * | |
867 | * @return a string with the servlet information. | |
868 | */ | |
869 | @Override | |
870 | public String getServletInfo() | |
871 | { | |
872 | 0 | return "Turbine Servlet"; |
873 | } | |
874 | ||
875 | /** | |
876 | * This method is about making sure that we catch and display | |
877 | * errors to the screen in one fashion or another. What happens is | |
878 | * that it will attempt to show the error using your user defined | |
879 | * Error Screen. If that fails, then it will resort to just | |
880 | * displaying the error and logging it all over the place | |
881 | * including the servlet engine log file, the Turbine log file and | |
882 | * on the screen. | |
883 | * | |
884 | * @param pipelineData A Turbine PipelineData object. | |
885 | * @param res Servlet response. | |
886 | * @param t The exception to report. | |
887 | */ | |
888 | protected void handleException(PipelineData pipelineData, HttpServletResponse res, | |
889 | Throwable t) | |
890 | { | |
891 | 1 | RunData data = (RunData) pipelineData; |
892 | // make sure that the stack trace makes it the log | |
893 | 1 | log.error("Turbine.handleException: ", t); |
894 | ||
895 | 1 | String mimeType = "text/plain"; |
896 | try | |
897 | { | |
898 | // This is where we capture all exceptions and show the | |
899 | // Error Screen. | |
900 | 1 | data.setStackTrace(ExceptionUtils.getStackTrace(t), t); |
901 | ||
902 | // setup the screen | |
903 | 1 | data.setScreen(configuration.getString( |
904 | TurbineConstants.SCREEN_ERROR_KEY, | |
905 | TurbineConstants.SCREEN_ERROR_DEFAULT)); | |
906 | ||
907 | // do more screen setup for template execution if needed | |
908 | 1 | if (data.getTemplateInfo() != null) |
909 | { | |
910 | 1 | data.getTemplateInfo() |
911 | .setScreenTemplate(configuration.getString( | |
912 | TurbineConstants.TEMPLATE_ERROR_KEY, | |
913 | TurbineConstants.TEMPLATE_ERROR_VM)); | |
914 | } | |
915 | ||
916 | // Make sure to not execute an action. | |
917 | 1 | data.setAction(""); |
918 | ||
919 | 1 | PageLoader.getInstance().exec(pipelineData, |
920 | configuration.getString(TurbineConstants.PAGE_DEFAULT_KEY, | |
921 | TurbineConstants.PAGE_DEFAULT_DEFAULT)); | |
922 | ||
923 | 0 | data.getResponse().setContentType(data.getContentType()); |
924 | 0 | data.getResponse().setStatus(data.getStatusCode()); |
925 | } | |
926 | // Catch this one because it occurs if some code hasn't been | |
927 | // completely re-compiled after a change.. | |
928 | 0 | catch (java.lang.NoSuchFieldError e) |
929 | { | |
930 | try | |
931 | { | |
932 | 0 | data.getResponse().setContentType(mimeType); |
933 | 0 | data.getResponse().setStatus(200); |
934 | } | |
935 | 0 | catch (Exception ignored) |
936 | { | |
937 | // ignore | |
938 | 0 | } |
939 | ||
940 | try | |
941 | { | |
942 | 0 | data.getResponse().getWriter().print("java.lang.NoSuchFieldError: " |
943 | + "Please recompile all of your source code."); | |
944 | } | |
945 | 0 | catch (IOException ignored) |
946 | { | |
947 | // ignore | |
948 | 0 | } |
949 | ||
950 | 0 | log.error(data.getStackTrace(), e); |
951 | } | |
952 | // Attempt to do *something* at this point... | |
953 | 1 | catch (Throwable reallyScrewedNow) |
954 | { | |
955 | 1 | StringBuilder msg = new StringBuilder(); |
956 | 1 | msg.append("Horrible Exception: "); |
957 | 1 | if (data != null) |
958 | { | |
959 | 1 | msg.append(data.getStackTrace()); |
960 | } | |
961 | else | |
962 | { | |
963 | 0 | msg.append(t); |
964 | } | |
965 | try | |
966 | { | |
967 | 1 | res.setContentType(mimeType); |
968 | 1 | res.setStatus(200); |
969 | 1 | res.getWriter().print(msg.toString()); |
970 | } | |
971 | 1 | catch (Exception ignored) |
972 | { | |
973 | // ignore | |
974 | 0 | } |
975 | ||
976 | 1 | log.error(reallyScrewedNow.getMessage(), reallyScrewedNow); |
977 | 0 | } |
978 | 1 | } |
979 | ||
980 | /** | |
981 | * Save some information about this servlet so that | |
982 | * it can be utilized by object instances that do not | |
983 | * have direct access to PipelineData. | |
984 | * | |
985 | * @param data Turbine request data | |
986 | */ | |
987 | public static synchronized void saveServletInfo(PipelineData data) | |
988 | { | |
989 | // Store the context path for tools like ContentURI and | |
990 | // the UIManager that use webapp context path information | |
991 | // for constructing URLs. | |
992 | ||
993 | // | |
994 | // Bundle all the information above up into a convenient structure | |
995 | // | |
996 | 1 | ServerData requestServerData = data.get(Turbine.class, ServerData.class); |
997 | 1 | serverData = (ServerData) requestServerData.clone(); |
998 | 1 | } |
999 | ||
1000 | /** | |
1001 | * Set the application root for the webapp. | |
1002 | * | |
1003 | * @param val New app root. | |
1004 | */ | |
1005 | public static void setApplicationRoot(String val) | |
1006 | { | |
1007 | 43 | applicationRoot = val; |
1008 | 43 | } |
1009 | ||
1010 | /** | |
1011 | * Get the application root for this Turbine webapp. This | |
1012 | * concept was started in 3.0 and will allow an app to be | |
1013 | * developed from a standard CVS layout. With a simple | |
1014 | * switch the app will work fully within the servlet | |
1015 | * container for deployment. | |
1016 | * | |
1017 | * @return String applicationRoot | |
1018 | */ | |
1019 | public static String getApplicationRoot() | |
1020 | { | |
1021 | 309 | return applicationRoot; |
1022 | } | |
1023 | ||
1024 | /** | |
1025 | * Used to get the real path of configuration and resource | |
1026 | * information. This can be used by an app being | |
1027 | * developed in a standard CVS layout. | |
1028 | * | |
1029 | * @param path path translated to the application root | |
1030 | * @return the real path | |
1031 | */ | |
1032 | public static String getRealPath(String path) | |
1033 | { | |
1034 | 263 | if (path.startsWith("/")) |
1035 | { | |
1036 | 180 | return new File(getApplicationRoot(), path.substring(1)).getAbsolutePath(); |
1037 | } | |
1038 | ||
1039 | 83 | return new File(getApplicationRoot(), path).getAbsolutePath(); |
1040 | } | |
1041 | ||
1042 | /** | |
1043 | * Return an instance of the currently configured Service Manager | |
1044 | * | |
1045 | * @return A service Manager instance | |
1046 | */ | |
1047 | private ServiceManager getServiceManager() | |
1048 | { | |
1049 | 256 | return TurbineServices.getInstance(); |
1050 | } | |
1051 | ||
1052 | /** | |
1053 | * Returns the default input encoding for the servlet. | |
1054 | * | |
1055 | * @return the default input encoding. | |
1056 | */ | |
1057 | public String getDefaultInputEncoding() | |
1058 | { | |
1059 | 4 | return inputEncoding; |
1060 | } | |
1061 | ||
1062 | /** | |
1063 | * Static Helper method for looking up the RunDataService | |
1064 | * @return A RunDataService | |
1065 | */ | |
1066 | private RunDataService getRunDataService() | |
1067 | { | |
1068 | 41 | return (RunDataService) getServiceManager().getService(RunDataService.SERVICE_NAME); |
1069 | } | |
1070 | } |