application/hub/main/template/announcement/class_XmlAnnouncementTemplateEngine.php

   1 <?php
   2 /**
   3  * An Announcement template engine class for XML templates
   4  *
   5  * @author              Roland Haeder <webmaster@ship-simu.org>
   6  * @version             0.0.0
   7  * @copyright   Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2011 Core Developer Team
   8  * @license             GNU GPL 3.0 or any newer version
   9  * @link                http://www.ship-simu.org
  10  * @todo                This template engine does not make use of setTemplateType()
  11  *
  12  * This program is free software: you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation, either version 3 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  24  */
  25 class XmlAnnouncementTemplateEngine extends BaseTemplateEngine implements CompileableTemplate, Registerable {
  26         /**
  27          * Main nodes in the XML tree
  28          */
  29         private $mainNodes = array(
  30                 'announcement',
  31         );
  32
  33         /**
  34          * Sub nodes in the XML tree
  35          */
  36         private $subNodes = array(
  37                 'announcement-data',
  38                 'listener',
  39                 'hub-listener',
  40                 'client-listener',
  41                 'node-status',
  42                 'tcp-port',
  43                 'udp-port',
  44                 'session-id',
  45                 'object-type-list',
  46         );
  47
  48         /**
  49          * Current main node
  50          */
  51         private $curr = array();
  52
  53         /**
  54          * Content from dependency
  55          */
  56         private $dependencyContent = array();
  57
  58         /**
  59          * Protected constructor
  60          *
  61          * @return      void
  62          */
  63         protected function __construct () {
  64                 // Call parent constructor
  65                 parent::__construct(__CLASS__);
  66         }
  67
  68         /**
  69          * Creates an instance of the class TemplateEngine and prepares it for usage
  70          *
  71          * @return      $templateInstance               An instance of TemplateEngine
  72          * @throws      BasePathIsEmptyException                If the provided $templateBasePath is empty
  73          * @throws      InvalidBasePathStringException  If $templateBasePath is no string
  74          * @throws      BasePathIsNoDirectoryException  If $templateBasePath is no
  75          *                                                                                      directory or not found
  76          * @throws      BasePathReadProtectedException  If $templateBasePath is
  77          *                                                                                      read-protected
  78          */
  79         public static final function createXmlAnnouncementTemplateEngine () {
  80                 // Get a new instance
  81                 $templateInstance = new XmlAnnouncementTemplateEngine();
  82
  83                 // Get the application instance from registry
  84                 $applicationInstance = Registry::getRegistry()->getInstance('app');
  85
  86                 // Determine base path
  87                 $templateBasePath = $templateInstance->getConfigInstance()->getConfigEntry('application_base_path') . $applicationInstance->getRequestInstance()->getRequestElement('app') . '/';
  88
  89                 // Is the base path valid?
  90                 if (empty($templateBasePath)) {
  91                         // Base path is empty
  92                         throw new BasePathIsEmptyException($templateInstance, self::EXCEPTION_UNEXPECTED_EMPTY_STRING);
  93                 } elseif (!is_string($templateBasePath)) {
  94                         // Is not a string
  95                         throw new InvalidBasePathStringException(array($templateInstance, $templateBasePath), self::EXCEPTION_INVALID_STRING);
  96                 } elseif (!is_dir($templateBasePath)) {
  97                         // Is not a path
  98                         throw new BasePathIsNoDirectoryException(array($templateInstance, $templateBasePath), self::EXCEPTION_INVALID_PATH_NAME);
  99                 } elseif (!is_readable($templateBasePath)) {
 100                         // Is not readable
 101                         throw new BasePathReadProtectedException(array($templateInstance, $templateBasePath), self::EXCEPTION_READ_PROTECED_PATH);
 102                 }
 103
 104                 // Set the base path
 105                 $templateInstance->setTemplateBasePath($templateBasePath);
 106
 107                 // Set template extensions
 108                 $templateInstance->setRawTemplateExtension($templateInstance->getConfigInstance()->getConfigEntry('raw_template_extension'));
 109                 $templateInstance->setCodeTemplateExtension($templateInstance->getConfigInstance()->getConfigEntry('node_announcement_template_extension'));
 110
 111                 // Absolute output path for compiled templates
 112                 $templateInstance->setCompileOutputPath($templateInstance->getConfigInstance()->getConfigEntry('base_path') . $templateInstance->getConfigInstance()->getConfigEntry('compile_output_path'));
 113
 114                 // Init a variable stacker
 115                 $stackerInstance = ObjectFactory::createObjectByConfiguredName('node_announcement_stacker_class');
 116
 117                 // Set it
 118                 $templateInstance->setStackerInstance($stackerInstance);
 119
 120                 // Return the prepared instance
 121                 return $templateInstance;
 122         }
 123
 124         /**
 125          * Load a specified announcement template into the engine
 126          *
 127          * @param       $template       The announcement template we shall load which is
 128          *                                              located in 'announcement' by default
 129          * @return      void
 130          */
 131         public function loadAnnouncementTemplate ($template = 'self_announcement') {
 132                 // Set template type
 133                 $this->setTemplateType($this->getConfigInstance()->getConfigEntry('node_announcement_template_type'));
 134
 135                 // Load the special template
 136                 $this->loadTemplate($template);
 137         }
 138
 139         /**
 140          * Getter for current main node
 141          *
 142          * @return      $currMainNode   Current main node
 143          */
 144         public final function getCurrMainNode () {
 145                 return $this->curr['main_node'];
 146         }
 147
 148         /**
 149          * Setter for current main node
 150          *
 151          * @param       $element                Element name to set as current main node
 152          * @return      $currMainNode   Current main node
 153          */
 154         private final function setCurrMainNode ($element) {
 155                 $this->curr['main_node'] = (string) $element;
 156         }
 157
 158         /**
 159          * Getter for main node array
 160          *
 161          * @return      $mainNodes      Array with valid main node names
 162          */
 163         public final function getMainNodes () {
 164                 return $this->mainNodes;
 165         }
 166
 167         /**
 168          * Getter for sub node array
 169          *
 170          * @return      $subNodes       Array with valid sub node names
 171          */
 172         public final function getSubNodes () {
 173                 return $this->subNodes;
 174         }
 175
 176         /**
 177          * Handles the start element of an XML resource
 178          *
 179          * @param       $resource               XML parser resource (currently ignored)
 180          * @param       $element                The element we shall handle
 181          * @param       $attributes             All attributes
 182          * @return      void
 183          * @throws      InvalidXmlNodeException         If an unknown/invalid XML node name was found
 184          */
 185         public function startElement ($resource, $element, array $attributes) {
 186                 // Initial method name which will never be called...
 187                 $methodName = 'initAnnouncement';
 188
 189                 // Make the element name lower-case
 190                 $element = strtolower($element);
 191
 192                 // Is the element a main node?
 193                 //* DEBUG: */ echo "START: &gt;".$element."&lt;<br />\n";
 194                 if (in_array($element, $this->getMainNodes())) {
 195                         // Okay, main node found!
 196                         $methodName = 'start' . $this->convertToClassName($element);
 197
 198                         // Set it
 199                         $this->setCurrMainNode($element);
 200                 } elseif (in_array($element, $this->getSubNodes())) {
 201                         // Sub node found
 202                         $methodName = 'start' . $this->convertToClassName($element);
 203                 } else {
 204                         // Invalid node name found
 205                         throw new InvalidXmlNodeException(array($this, $element, $attributes), XmlParser::EXCEPTION_XML_NODE_UNKNOWN);
 206                 }
 207
 208                 // Call method
 209                 //* DEBUG: */ echo "call: ".$methodName."<br />\n";
 210                 call_user_func_array(array($this, $methodName), $attributes);
 211         }
 212
 213         /**
 214          * Ends the main or sub node by sending out the gathered data
 215          *
 216          * @param       $resource       An XML resource pointer (currently ignored)
 217          * @param       $nodeName       Name of the node we want to finish
 218          * @return      void
 219          * @throws      XmlNodeMismatchException        If current main node mismatches the closing one
 220          */
 221         public function endElement ($resource, $nodeName) {
 222                 // Make all lower-case
 223                 $nodeName = strtolower($nodeName);
 224
 225                 // Does this match with current main node?
 226                 //* DEBUG: */ echo "END: &gt;".$nodeName."&lt;<br />\n";
 227                 if (($nodeName != $this->getCurrMainNode()) && (in_array($nodeName, $this->getMainNodes()))) {
 228                         // Did not match!
 229                         throw new XmlNodeMismatchException (array($this, $nodeName, $this->getCurrMainNode()), XmlParser::EXCEPTION_XML_NODE_MISMATCH);
 230                 } // END - if
 231
 232                 // Construct method name
 233                 $methodName = 'finish' . $this->convertToClassName($nodeName);
 234
 235                 // Call the corresponding method
 236                 //* DEBUG: */ echo "call: ".$methodName."<br />\n";
 237                 call_user_func_array(array($this, $methodName), array());
 238         }
 239
 240         /**
 241          * Currently not used
 242          *
 243          * @param       $resource               XML parser resource (currently ignored)
 244          * @param       $characters             Characters to handle
 245          * @return      void
 246          */
 247         public function characterHandler ($resource, $characters) {
 248                 // Trim all spaces away
 249                 $characters = trim($characters);
 250
 251                 // Is this string empty?
 252                 if (empty($characters)) {
 253                         // Then skip it silently
 254                         return false;
 255                 } // END - if
 256
 257                 // Assign the found characters to variable and use the last entry from
 258                 // stack as the name
 259                 parent::assignVariable($this->getStackerInstance()->getNamed('announcement'), $characters);
 260         }
 261
 262         /**
 263          * Handles the template dependency for given node
 264          *
 265          * @param       $node                                   The node we should load a dependency template
 266          * @param       $templateDependency             A template to load to satisfy dependencies
 267          * @return      void
 268          */
 269         private function handleTemplateDependency ($node, $templateDependency) {
 270                 // Is the template dependency set?
 271                 if ((!empty($templateDependency)) && (!isset($this->dependencyContent[$node]))) {
 272                         // Get a temporay template instance
 273                         $templateInstance = XmlTemplateEngineFactory::createXmlTemplateEngineInstance('node_announcement_template_class');
 274
 275                         // Then load it
 276                         $templateInstance->loadAnnouncementTemplate($templateDependency);
 277
 278                         // Parse the XML content
 279                         $templateInstance->renderXmlContent();
 280
 281                         // Save the parsed raw content in our dependency array
 282                         $this->dependencyContent[$node] = $templateInstance->getRawTemplateData();
 283                 } // END - if
 284         }
 285
 286         /**
 287          * Getter for cache file (FQFN)
 288          *
 289          * @return      $fqfn   Full-qualified file name of the menu cache
 290          */
 291         public function getMenuCacheFqfn () {
 292                 $this->partialStub('Please implement this method.');
 293         }
 294
 295         /**
 296          * Starts the announcement
 297          *
 298          * @return      void
 299          */
 300         private function startAnnouncement () {
 301                 // Push the node name on the stacker
 302                 $this->getStackerInstance()->pushNamed('announcement', 'announcement');
 303         }
 304
 305         /**
 306          * Starts the announcement data
 307          *
 308          * @return      void
 309          */
 310         private function startAnnouncementData () {
 311                 // Push the node name on the stacker
 312                 $this->getStackerInstance()->pushNamed('announcement', 'announcement-data');
 313         }
 314
 315         /**
 316          * Starts the node status
 317          *
 318          * @return      void
 319          */
 320         private function startNodeStatus () {
 321                 // Push the node name on the stacker
 322                 $this->getStackerInstance()->pushNamed('announcement', 'node-status');
 323         }
 324
 325         /**
 326          * Starts the listener
 327          *
 328          * @return      void
 329          */
 330         private function startListener () {
 331                 // Push the node name on the stacker
 332                 $this->getStackerInstance()->pushNamed('announcement', 'listener');
 333         }
 334
 335         /**
 336          * Starts the client listener
 337          *
 338          * @return      void
 339          */
 340         private function startClientListener () {
 341                 // Push the node name on the stacker
 342                 $this->getStackerInstance()->pushNamed('announcement', 'client-listener');
 343         }
 344
 345         /**
 346          * Starts the hub listener
 347          *
 348          * @return      void
 349          */
 350         private function startHubListener () {
 351                 // Push the node name on the stacker
 352                 $this->getStackerInstance()->pushNamed('announcement', 'hub-listener');
 353         }
 354
 355         /**
 356          * Starts the TCP port
 357          *
 358          * @return      void
 359          */
 360         private function startTcpPort () {
 361                 // Push the node name on the stacker
 362                 $this->getStackerInstance()->pushNamed('announcement', 'tcp-port');
 363         }
 364
 365         /**
 366          * Starts the UDP port
 367          *
 368          * @return      void
 369          */
 370         private function startUdpPort () {
 371                 // Push the node name on the stacker
 372                 $this->getStackerInstance()->pushNamed('announcement', 'udp-port');
 373         }
 374
 375         /**
 376          * Starts the session id
 377          *
 378          * @return      void
 379          */
 380         private function startSessionId () {
 381                 // Push the node name on the stacker
 382                 $this->getStackerInstance()->pushNamed('announcement', 'session-id');
 383         }
 384
 385         /**
 386          * Starts the object type list
 387          *
 388          * @return      void
 389          */
 390         private function startObjectTypeList () {
 391                 // Push the node name on the stacker
 392                 $this->getStackerInstance()->pushNamed('announcement', 'object-type-list');
 393         }
 394
 395         /**
 396          * Starts the object type
 397          *
 398          * @return      void
 399          */
 400         private function startObjectType () {
 401                 // Push the node name on the stacker
 402                 $this->getStackerInstance()->pushNamed('announcement', 'object-type');
 403         }
 404
 405         /**
 406          * Finishes the object type
 407          *
 408          * @return      void
 409          */
 410         private function finishObjectType () {
 411                 // Pop the last entry
 412                 $this->getStackerInstance()->popNamed('announcement');
 413         }
 414
 415         /**
 416          * Finishes the object type list
 417          *
 418          * @return      void
 419          */
 420         private function finishObjectTypeList () {
 421                 // Pop the last entry
 422                 $this->getStackerInstance()->popNamed('announcement');
 423         }
 424
 425         /**
 426          * Finishes the session id
 427          *
 428          * @return      void
 429          */
 430         private function finishSessionId () {
 431                 // Pop the last entry
 432                 $this->getStackerInstance()->popNamed('announcement');
 433         }
 434
 435         /**
 436          * Finishes the UDP port
 437          *
 438          * @return      void
 439          */
 440         private function finishUdpPort () {
 441                 // Pop the last entry
 442                 $this->getStackerInstance()->popNamed('announcement');
 443         }
 444
 445         /**
 446          * Finishes the TCP port
 447          *
 448          * @return      void
 449          */
 450         private function finishTcpPort () {
 451                 // Pop the last entry
 452                 $this->getStackerInstance()->popNamed('announcement');
 453         }
 454
 455         /**
 456          * Finishes the hub listener
 457          *
 458          * @return      void
 459          */
 460         private function finishHubListener () {
 461                 // Pop the last entry
 462                 $this->getStackerInstance()->popNamed('announcement');
 463         }
 464
 465         /**
 466          * Finishes the client listener
 467          *
 468          * @return      void
 469          */
 470         private function finishClientListener () {
 471                 // Pop the last entry
 472                 $this->getStackerInstance()->popNamed('announcement');
 473         }
 474
 475         /**
 476          * Finishes the listener
 477          *
 478          * @return      void
 479          */
 480         private function finishListener () {
 481                 // Pop the last entry
 482                 $this->getStackerInstance()->popNamed('announcement');
 483         }
 484
 485         /**
 486          * Finishes the node status
 487          *
 488          * @return      void
 489          */
 490         private function finishNodeStatus () {
 491                 // Pop the last entry
 492                 $this->getStackerInstance()->popNamed('announcement');
 493         }
 494
 495         /**
 496          * Finishes the announcement data
 497          *
 498          * @return      void
 499          */
 500         private function finishAnnouncementData () {
 501                 // Pop the last entry
 502                 $this->getStackerInstance()->popNamed('announcement');
 503         }
 504
 505         /**
 506          * Finishes the announcement
 507          *
 508          * @return      void
 509          */
 510         private function finishAnnouncement () {
 511                 // Pop the last entry
 512                 $this->getStackerInstance()->popNamed('announcement');
 513         }
 514 }
 515
 516 // [EOF]
 517 ?>