3 * The simulator system class is the super class of all other classes. This
4 * class handles saving of games etc.
6 * @author Roland Haeder <webmaster@ship-simu.org>
8 * @copyright Copyright(c) 2007, 2008 Roland Haeder, this is free software
9 * @license GNU GPL 3.0 or any newer version
10 * @link http://www.mxchange.org
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.
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.
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/>.
25 class BaseFrameworkSystem extends stdClass implements FrameworkInterface {
27 * The instance to the debug output handler (should be DebugConsoleOutput or DebugWebOutput)
29 * @see DebugConsoleOutput
32 private static $debug = null;
35 * The instance to the web output handler (should be WebOutput)
39 private static $webOutput = null;
42 * The instance to the compression layer which should be CompressorChannel
44 private static $compressor = null;
47 * The configuration instance which shall be FrameworkConfiguration
49 private static $cfgInstance = null;
52 * The instance to the database layer which should be DatabaseConnection
54 private $dbInstance = null;
59 private $realClass = "FrameworkSystem";
62 * A human-readable description for this simulator part
64 private $partDescr = "Namenlose Framework-Einheit";
67 * The unique ID string for identifying all type of classes
69 private $uniqueID = "";
74 private $thousands = "."; // German
79 private $decimals = ","; // German
82 * The language instance for the template loader
84 private $langInstance = null;
87 * The file I/O instance for the template loader
89 private $fileIOInstance = null;
91 /***********************
92 * Exception codes.... *
93 ***********************/
95 const EXCEPTION_IS_NULL_POINTER = 0x001;
96 const EXCEPTION_IS_NO_OBJECT = 0x002;
97 const EXCEPTION_IS_NO_ARRAY = 0x003;
98 const EXCEPTION_MISSING_METHOD = 0x004;
99 const EXCEPTION_CLASSES_NOT_MATCHING = 0x005;
100 const EXCEPTION_INDEX_OUT_OF_BOUNDS = 0x006;
101 const EXCEPTION_DIMENSION_ARRAY_INVALID = 0x007;
102 const EXCEPTION_ITEM_NOT_TRADEABLE = 0x008;
103 const EXCEPTION_ITEM_NOT_IN_PRICE_LIST = 0x009;
104 const EXCEPTION_GENDER_IS_WRONG = 0x00a;
105 const EXCEPTION_BIRTH_DATE_IS_INVALID = 0x00b;
106 const EXCEPTION_EMPTY_STRUCTURES_ARRAY = 0x00c;
107 const EXCEPTION_HAS_ALREADY_PERSONELL_LIST = 0x00d;
108 const EXCEPTION_NOT_ENOUGTH_UNEMPLOYEES = 0x00e;
109 const EXCEPTION_TOTAL_PRICE_NOT_CALCULATED = 0x00f;
110 const EXCEPTION_HARBOR_HAS_NO_SHIPYARDS = 0x010;
111 const EXCEPTION_CONTRACT_PARTNER_INVALID = 0x011;
112 const EXCEPTION_CONTRACT_PARTNER_MISMATCH = 0x012;
113 const EXCEPTION_CONTRACT_ALREADY_SIGNED = 0x013;
114 const EXCEPTION_UNEXPECTED_EMPTY_STRING = 0x014;
115 const EXCEPTION_PATH_NOT_FOUND = 0x015;
116 const EXCEPTION_INVALID_PATH_NAME = 0x016;
117 const EXCEPTION_READ_PROTECED_PATH = 0x017;
118 const EXCEPTION_WRITE_PROTECED_PATH = 0x018;
119 const EXCEPTION_DIR_POINTER_INVALID = 0x019;
120 const EXCEPTION_FILE_POINTER_INVALID = 0x01a;
121 const EXCEPTION_INVALID_DIRECTORY_POINTER = 0x01b;
122 const EXCEPTION_UNEXPECTED_OBJECT = 0x01c;
123 const EXCEPTION_LIMIT_ELEMENT_IS_UNSUPPORTED = 0x01d;
124 const EXCEPTION_GETTER_IS_MISSING = 0x01e;
125 const EXCEPTION_ARRAY_EXPECTED = 0x01f;
126 const EXCEPTION_ARRAY_HAS_INVALID_COUNT = 0x020;
127 const EXCEPTION_ID_IS_INVALID_FORMAT = 0x021;
128 const EXCEPTION_MD5_CHECKSUMS_MISMATCH = 0x022;
129 const EXCEPTION_UNEXPECTED_STRING_SIZE = 0x023;
130 const EXCEPTION_SIMULATOR_ID_INVALID = 0x024;
131 const EXCEPTION_MISMATCHING_COMPRESSORS = 0x025;
132 const EXCEPTION_CONTAINER_ITEM_IS_NULL = 0x026;
133 const EXCEPTION_ITEM_IS_NO_ARRAY = 0x027;
134 const EXCEPTION_CONTAINER_MAYBE_DAMAGED = 0x028;
135 const EXCEPTION_INVALID_STRING = 0x029;
136 const EXCEPTION_VARIABLE_NOT_SET = 0x02a;
137 const EXCEPTION_ATTRIBUTES_ARE_MISSING = 0x02b;
138 const EXCEPTION_ARRAY_ELEMENTS_MISSING = 0x02c;
139 const EXCEPTION_TEMPLATE_ENGINE_UNSUPPORTED = 0x02d;
140 const EXCEPTION_MISSING_LANGUAGE_HANDLER = 0x02e;
141 const EXCEPTION_MISSING_FILE_IO_HANDLER = 0x02f;
144 * In the super constructor these system classes shall be ignored or else
145 * we would get an endless calling loop.
147 *--------------------------------------------------------------------*
148 * ATTENTION: IF YOU REMOVE ONE OF THEM YOU WILL SHOOT YOUR SERVER!!! *
149 *--------------------------------------------------------------------*
151 private $systemClasses = array(
152 "DebugMiddleware", // Debug middleware output sub-system
153 "DebugWebOutput", // Debug web output sub-system
154 "DebugConsoleOutput", // Debug console output sub-system
155 "DebugErrorLogOutput", // Debug error_log() output sub-system
156 "CompressorChannel", // Compressor sub-system
157 "FrameworkDirectoryPointer", // Directory handler sub-system
158 "NullCompressor", // Null compressor
159 "Bzip2Compressor", // BZIP2 compressor
160 "GzipCompressor", // GZIP compressor
161 "WebOutput", // Web output sub-system
165 * Private super constructor
169 private function __construct ($class) {
171 $this->setRealClass($class);
175 * Destructor reached...
179 public function __destruct() {
180 // Is this object already destroyed?
181 if ($this->__toString() != "DestructedObject") {
183 if ((defined('DEBUG_DESTRUCTOR')) && (is_object($this->getDebugInstance()))) {
184 $this->getDebugInstance()->output(sprintf("[%s:] Das Objekt <strong>%s</strong> wird zerstört.<br />\n",
185 __CLASS__, $this->__toString()
189 // Destroy all informations about this class but keep some text about it alive
190 $this->setPartDescr(sprintf("Entferntes Objekt <em>%s</em>", $this->__toString()));
191 $this->setRealClass("DestructedObject");
192 $this->resetUniqueID();
193 } elseif ((defined('DEBUG_DESTRUCTOR')) && (is_object($this->getDebugInstance()))) {
194 // Already destructed object
195 $this->getDebugInstance()->output(sprintf("[%s:] Das Objekt <strong>%s</strong> wurde bereits zerstört.<br />\n",
196 __CLASS__, $this->__toString()
202 * The call method where all non-implemented methods end up
206 public final function __call ($methodName, $args) {
207 // Implode all given arguments
208 $argsString = implode("|", $args);
209 if (empty($argsString)) $argsString = "NULL";
211 $this->getDebugInstance()->output(sprintf("[%s::%s] Stub! Args: %s",
222 * Public constructor (for initializing things, etc.)
226 public function constructor ($class) {
228 $this->__construct($class);
230 // Get the current (singleton) configuration instance
231 $this->setConfigInstance(FrameworkConfiguration::createFrameworkConfiguration());
233 // Is the class weather debug nor compressor channel?
234 if (!in_array($class, $this->systemClasses)) {
235 // Initialize debug instance
236 if (is_null($this->getDebugInstance())) {
237 // Set the debug output system if it is not debug class ;)
238 $this->setDebugInstance(DebugMiddleware::createDebugMiddleware($this->getConfigInstance()->readConfig("debug_engine")));
241 // Initialize web instance
242 if (is_null($this->getWebOutputInstance())) {
243 // Generate the eval() command
244 $eval = sprintf("\$this->setWebOutputInstance(%s::create%s(\"%s\"));",
245 $this->getConfigInstance()->readConfig("web_engine"),
246 $this->getConfigInstance()->readConfig("web_engine"),
247 $this->getConfigInstance()->readConfig("web_content_type")
251 if ((defined('DEBUG_EVAL')) || (defined('DEBUG_ALL'))) $this->getDebugInstance()->output(sprintf("[%s:] Konstruierte PHP-Anweisung: <pre><em>%s</em></pre><br />\n",
260 // Initialize compressor channel
261 if (is_null($this->getCompressorChannel())) {
262 // Set the compressor channel
263 $this->setCompressorChannel(CompressorChannel::createCompressorChannel(sprintf("%s%s",
265 $this->getConfigInstance()->readConfig("compressor_base_path")
269 // Initialize database middleware
270 if (is_null($this->getDatabaseInstance())) {
271 // Get the middleware instance
272 $db = DatabaseConnection::getInstance();
273 if (is_object($db)) {
274 // Set the database middleware
275 $this->setDatabaseInstance($db);
280 if ((defined('DEBUG_SYSTEM')) && (is_object($this->getDebugInstance()))) $this->getDebugInstance()->output(sprintf("[%s:] Alle Sub-Systeme sind initialisiert.<br />\n",
287 * Setter for language instance
289 * @param $configInstance The configuration instance which shall
290 * be FrameworkConfiguration
293 public final function setConfigInstance (FrameworkConfiguration $configInstance) {
294 $this->cfgInstance = $configInstance;
295 if ((defined('DEBUG_SYSTEM')) && (is_object($this->getDebugInstance()))) $this->getDebugInstance()->output(sprintf("[%s:] Konfigurations-Handler auf <strong>%s</strong> gesetzt.<br />\n",
297 $configInstance->__toString()
302 * Getter for configuration instance
304 * @return $cfhInstance - Configuration instance
306 public final function getConfigInstance () {
307 if ((defined('DEBUG_SYSTEM')) && (is_object($this->getDebugInstance()))) $this->getDebugInstance()->output(sprintf("[%s:] Konfigurations-Handler <strong>%s</strong> angefordert.<br />\n",
309 $this->cfgInstance->__toString()
311 return $this->cfgInstance;
315 * Setter for debug instance
317 * @param $debugInstance The instance for debug output class
320 public final function setDebugInstance (DebugMiddleware $debugInstance) {
321 self::$debug = $debugInstance;
322 if ((defined('DEBUG_SYSTEM')) && (is_object($this->getDebugInstance()))) $this->getDebugInstance()->output(sprintf("[%s:] Debug-Handler auf <strong>%s</strong> gesetzt.<br />\n",
324 $this->getDebugInstance()->__toString()
329 * Getter for debug instance
331 * @return $debug - Instance to class DebugConsoleOutput or DebugWebOutput
333 public final function getDebugInstance () {
338 * Setter for web output instance
340 * @param $webInstance The instance for web output class
343 public final function setWebOutputInstance (OutputStreamer $webInstance) {
344 self::$webOutput = $webInstance;
345 if ((defined('DEBUG_SYSTEM')) && (is_object($this->getDebugInstance()))) $this->getDebugInstance()->output(sprintf("[%s:] Web-Handler auf <strong>%s</strong> gesetzt.<br />\n",
347 $this->getWebOutputInstance()->__toString()
352 * Getter for web output instance
354 * @return $webOutput - Instance to class WebOutput
356 public final function getWebOutputInstance () {
357 return self::$webOutput;
361 * Static setter for database instance
363 * @param $dbInstance The instance for the database connection
364 * (forced DatabaseConnection)
367 public final function setDatabaseInstance (DatabaseConnection $dbInstance) {
368 if ((defined('DEBUG_SYSTEM')) && (is_object($dbInstance->getDebugInstance()))) $dbInstance->getDebugInstance()->output(sprintf("[%s:] Datenbankschicht gesetzt.<br />\n",
369 $dbInstance->__toString()
371 $this->dbInstance = $dbInstance;
375 * Getter for $realClass
377 * @return $realClass The name of the real class (not BaseFrameworkSystem)
379 public final function __toString () {
380 if ((defined('DEBUG_SYSTEM')) && (is_object($this->getDebugInstance()))) $this->getDebugInstance()->output(sprintf("[%s:] __toString() erreicht.<br />\n",
383 return $this->realClass;
387 * Setter for the real class name
389 * @param $realClass Class name (string)
392 public final function setRealClass ($realClass) {
394 $realClass = (string) $realClass;
397 $this->realClass = $realClass;
401 * Generate unique ID from a lot entropy
405 public final function createUniqueID () {
406 if ((defined('DEBUG_SYSTEM')) && (is_object($this->getDebugInstance()))) $this->getDebugInstance()->output(sprintf("[%s:] createUniqueID aufgerufen.<br />\n",
410 // Existiert noch keine?
411 if (empty($this->uniqueID)) {
412 if ((defined('DEBUG_SYSTEM')) && (is_object($this->getDebugInstance()))) $this->getDebugInstance()->output(sprintf("[%s:] createUniqueID erzeugt neue Unique-ID.<br />\n",
416 // Correct missing class name
418 if ($this->__toString() == "") {
419 $this->setRealClass(__CLASS__);
426 // Generate a unique ID number
427 $tempID = $this->generateIdNumber();
430 // Try to figure out if the ID number is not yet used
432 if (is_object($this->getDatabaseInstance())) {
433 $isUsed = $this->getDatabaseInstance()->isUniqueIdUsed($tempID, true);
435 } catch (FrameworkException $e) {
436 // Catches all and ignores all ;-)
444 $this->getDatabaseInstance() === null
447 is_object($this->getDatabaseInstance())
460 if ((defined('DEBUG_SYSTEM')) && (is_object($this->getDebugInstance()))) $this->getDebugInstance()->output(sprintf("[%s:] uniqueID ist auf <strong>%s</strong> gesetzt.<br />\n",
466 $this->setUniqueID($tempID);
468 // Revert maybe corrected class name
470 $this->setRealClass("");
473 // Remove system classes if we are in a system class
474 if ((isset($this->systemClasses)) && (in_array($this->__toString(), $this->systemClasses))) {
475 // This may save some RAM...
476 $this->removeSystemArray();
482 * Generates a new ID number for classes based from the class' real name,
483 * the description and some random data
485 * @return $tempID The new (temporary) ID number
487 private final function generateIdNumber () {
488 return sprintf("%s@%s",
490 md5(sprintf("%s:%s:%s:%s:%s:%s",
492 $this->getPartDescr(),
494 getenv('REMOTE_ADDR'),
495 getenv('SERVER_ADDR'),
502 * Setter for unique ID
504 * @param $uniqueID The newly generated unique ID number
507 private final function setUniqueID ($uniqueID) {
509 $uniqueID = (string) $uniqueID;
512 if ((defined('DEBUG_SYSTEM')) && (is_object($this->getDebugInstance()))) $this->getDebugInstance()->output(sprintf("[%s:] Unique-ID gesetzt auf <u>%s</u>.<br />\n",
518 $this->uniqueID = $uniqueID;
522 * Getter for unique ID
524 * @return $uniqueID The unique ID of this class
526 public final function getUniqueID () {
527 if ((defined('DEBUG_SYSTEM')) && (is_object($this->getDebugInstance()))) $this->getDebugInstance()->output(sprintf("[%s:] Unique-ID angefordert.<br />\n",
530 return $this->uniqueID;
534 * Resets or recreates the unique ID number
538 public final function resetUniqueID() {
539 // Sweet and simple... ;-)
540 $newUniqueID = $this->generateIdNumber();
541 if ((defined('DEBUG_SYSTEM')) && (is_object($this->getDebugInstance()))) $this->getDebugInstance()->output(sprintf("[%s:] Unique-ID zurückgesetzt auf <u>%s</u>.<br />\n",
545 $this->setUniqueID($newUniqueID);
549 * Getter for simulator description
551 * @return $partDescr The description of this simulation part
553 public final function getPartDescr () {
554 if ((defined('DEBUG_SYSTEM')) && (is_object($this->getDebugInstance()))) $this->getDebugInstance()->output(sprintf("[%s:] getPartDescr erreicht.<br />\n",
557 if (isset($this->partDescr)) {
558 return $this->partDescr;
565 * Setter for simulation part description
567 * @param $partDescr The description as string for this simulation part
570 public final function setPartDescr ($partDescr) {
571 $this->partDescr = (String) $partDescr;
572 if ((defined('DEBUG_SYSTEM')) && (is_object($this->getDebugInstance()))) $this->getDebugInstance()->output(sprintf("[%s:] Teilbeschreibung wird auf <strong>%s</strong> gesetzt.<br />\n",
579 * Validate if given object is the same as current
581 * @param $object An object instance for comparison with this class
582 * @return boolean The result of comparing both's unique ID
584 public final function equals ($object) {
585 return ($this->getUniqueID() == $object->getUniqueID());
589 * Compare if both simulation part description and class name matches
592 * @param $itemInstance An object instance to an other class
593 * @return boolean The result of comparing class name simulation part description
595 public function itemMatches ($itemInstance) {
598 $this->__toString() == $itemInstance->__toString()
600 $this->getPartDescr() == $itemInstance->getPartDescr()
606 * Compare class name of this and given class name
608 * @param $class The class name as string from the other class
609 * @return boolean The result of comparing both class names
611 public final function isClass ($class) {
612 if ((defined('DEBUG_SYSTEM')) && (is_object($this->getDebugInstance()))) $this->getDebugInstance()->output(sprintf("[%s:] <strong>%s</strong>=<strong>%s</strong>?<br />\n",
617 return ($this->__toString() == $class);
621 * Stub method (only real cabins shall override it)
623 * @return boolean false = is no cabin, true = is a cabin
625 public function isCabin () {
630 * Stub method for tradeable objects
632 * @return boolean false = is not tradeable by the Merchant class,
633 * true = is a tradeable object
635 public function isTradeable () {
640 * Formats computer generated price values into human-understandable formats
641 * with thousand and decimal seperators.
643 * @param $value The in computer format value for a price
644 * @param $currency The currency symbol (use HTML-valid characters!)
645 * @param $decNum Number of decimals after commata
646 * @return $price The for the current language formated price string
647 * @throws MissingDecimalsThousandsSeperatorException If decimals or
648 * thousands seperator
651 public function formatCurrency ($value, $currency = "€", $decNum = 2) {
652 // Are all required attriutes set?
653 if ((!isset($this->decimals)) || (!isset($this->thousands))) {
654 // Throw an exception
655 throw new MissingDecimalsThousandsSeperatorException($this, self::EXCEPTION_ATTRIBUTES_ARE_MISSING);
659 $value = (float) $value;
660 if (defined('DEBUG_CORE') && is_object($this->getDebugInstance())) $this->getDebugInstance()->output(sprintf("[%s:] <strong>%d</strong> wird umformatiert.<br />\n",
665 // Reformat the US number
666 $price = sprintf("%s %s",
667 number_format($value, $decNum, $this->decimals, $this->thousands),
671 // Return as string...
676 * Removes number formating characters
680 public final function removeNumberFormaters () {
681 if (defined('DEBUG_CORE') && is_object($this->getDebugInstance())) $this->getDebugInstance()->output(sprintf("[%s:] Zahlenumformatierungszeichen werden entfernt.<br />\n",
684 unset($this->thousands);
685 unset($this->decimals);
689 * Getter for database layer
691 * @return $dbInstance The database layer instance
693 public final function getDatabaseInstance () {
694 if (defined('DEBUG_CORE') && is_object($this->getDebugInstance())) $this->getDebugInstance()->output(sprintf("[%s:] Datenbank-Instanz <u>%s</u> angefordert.<br />\n",
698 return $this->dbInstance;
702 * Setter for compressor channel
704 * @param $compressorChannel An instance of CompressorChannel
707 public final function setCompressorChannel (CompressorChannel $compressorChannel) {
708 self::$compressor = $compressorChannel;
712 * Getter for compressor channel
714 * @return $compressor The compressor channel
716 public final function getCompressorChannel () {
717 return self::$compressor;
721 * Remove the $systemClasses array from memory
725 public final function removeSystemArray () {
726 unset($this->systemClasses);
730 * Create a file name and path name from the object's unique ID number.
731 * The left part of the ID shall always be a valid class name and the
732 * right part an ID number.
734 * @return $pfn The file name with a prepended path name
735 * @throws NoArrayCreatedException If explode() fails to create an array
736 * @throws InvalidArrayCountException If the array contains less or
737 * more than two elements
739 public final function getPathFileNameFromObject () {
740 // Get the main object's unique ID. We use this as a path/filename combination
741 $pathFile = $this->getUniqueID();
743 // Split it up in path and file name
744 $pathFile = explode("@", $pathFile);
746 // Are there two elements? Index 0 is the path, 1 the file name + global extension
747 if (!is_array($pathFile)) {
749 throw new NoArrayCreatedException(array($this, "pathFile"), self::EXCEPTION_ARRAY_EXPECTED);
750 } elseif (count($pathFile) != 2) {
751 // Invalid ID returned!
752 throw new InvalidArrayCountException(array($this, "pathFile", count($pathFile), 2), self::EXCEPTION_ARRAY_HAS_INVALID_COUNT);
755 // Auto-append missing trailing slash
756 $pathFile[0] = $this->addMissingTrailingSlash($pathFile[0]);
758 // Create the file name and return it
759 $pfn = ($pathFile[0] . $pathFile[1]);
764 * Appends a trailing slash to a string
766 * @param $str A string (maybe) without trailing slash
767 * @return $str A string with an auto-appended trailing slash
769 public final function addMissingTrailingSlash ($str) {
770 // Is there a trailing slash?
771 if (substr($str, -1, 1) != "/") $str .= "/";
776 * Private getter for language instance
778 * @return $langInstance An instance to the language sub-system
780 protected final function getLanguageInstance () {
781 return $this->langInstance;
785 * Setter for language instance
787 * @param $langInstance An instance to the language sub-system
789 * @see LanguageSystem
791 public final function setLanguageInstance (ManageableLanguage $langInstance) {
792 $this->langInstance = $langInstance;
796 * Private getter for file IO instance
798 * @return $fileIOInstance An instance to the file I/O sub-system
800 protected final function getFileIOInstance () {
801 return $this->fileIOInstance;
805 * Setter for file I/O instance
807 * @param $fileIOInstance An instance to the file I/O sub-system
810 public final function setFileIOInstance (FileIOHandler $fileIOInstance) {
811 $this->fileIOInstance = $fileIOInstance;
815 * Prepare the template engine (TemplateEngine by default) for a given
816 * application helper instance (ApplicationHelper by default).
818 * @param $appInstance An application helper instance
819 * @return $tplEngine The template engine instance
820 * @throws NullPointerException If the template engine could not
822 * @throws UnsupportedTemplateEngineException If $tplEngine is an
823 * unsupported template engine
824 * @throws MissingLanguageHandlerException If the language sub-system
825 * is not yet initialized
827 protected function prepareTemplateEngine (BaseFrameworkSystem $appInstance) {
828 // Generate FQFN for all application templates
829 $fqfn = sprintf("%s%s/%s/%s",
831 $this->getConfigInstance()->readConfig("application_path"),
832 strtolower($appInstance->getAppShortName()),
833 $this->getConfigInstance()->readConfig("tpl_base_path")
836 // Are both instances set?
837 if ($appInstance->getLanguageInstance() === null) {
838 // Invalid language instance
839 throw new MissingLanguageHandlerException($appInstance, self::EXCEPTION_MISSING_LANGUAGE_HANDLER);
840 } elseif ($appInstance->getFileIOInstance() === null) {
841 // Invalid language instance
842 throw new MissingFileIoHandlerException($appInstance, self::EXCEPTION_MISSING_FILE_IO_HANDLER);
845 // Initialize the template engine
847 $eval = sprintf("\$tplEngine = %s::create%s(
849 \$appInstance->getLanguageInstance(),
850 \$appInstance->getFileIOInstance()
852 $this->getConfigInstance()->readConfig("tpl_engine"),
853 $this->getConfigInstance()->readConfig("tpl_engine"),
858 if ((!is_null($this->getDebugInstance())) && (defined('DEBUG_EVAL'))) {
859 $this->getDebugInstance()->output(sprintf("[%s:] Konstruierte PHP-Anweisung: <pre><em>%s</em></pre><br />\n",
868 // Is it a valid instance?
869 if (is_null($tplEngine)) {
871 throw new NullPointerException($this, self::EXCEPTION_IS_NULL_POINTER);
872 } elseif (!$tplEngine instanceof CompileableTemplate) {
873 // Not an object! ;-(
874 throw new UnsupportedTemplateEngineException($tplEngine, self::EXCEPTION_TEMPLATE_ENGINE_UNSUPPORTED);
877 // Return the prepared instance