X-Git-Url: https://git.mxchange.org/?p=core.git;a=blobdiff_plain;f=inc%2Fclasses%2Fmain%2Findex%2Fclass_BaseIndex.php;h=beda05c372ac306a299b90749905f6722e0ee333;hp=f2eeac33b33bdcbc922c506e22abe1368fce7d0c;hb=f3fbf700c63f8a49a4adb793d1cefd4d27fdcd3f;hpb=43a245de11669d9da341a2db7a35b956871adeb9 diff --git a/inc/classes/main/index/class_BaseIndex.php b/inc/classes/main/index/class_BaseIndex.php index f2eeac33..beda05c3 100644 --- a/inc/classes/main/index/class_BaseIndex.php +++ b/inc/classes/main/index/class_BaseIndex.php @@ -36,17 +36,6 @@ class BaseIndex extends BaseFrameworkSystem { protected function __construct ($className) { // Call parent constructor parent::__construct($className); - - // Calculate header size - $this->setHeaderSize( - strlen(self::INDEX_MAGIC) + - strlen(chr(self::SEPARATOR_HEADER_DATA)) + - self::LENGTH_COUNT + - strlen(chr(self::SEPARATOR_HEADER_ENTRIES)) - ); - - // Init counters and gaps array - $this->initCountersGapsArray(); } /** @@ -61,23 +50,23 @@ class BaseIndex extends BaseFrameworkSystem { $this->getIteratorInstance()->rewind(); // Then read it (see constructor for calculation) - $data = $this->getIteratorInstance()->read($this->getHeaderSize()); - //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] Read %d bytes (%d wanted).', __METHOD__, __LINE__, strlen($data), $this->getHeaderSize())); + $data = $this->getIteratorInstance()->read($this->getIteratorInstance()->getHeaderSize()); + //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] Read %d bytes (%d wanted).', __METHOD__, __LINE__, strlen($data), $this->getIteratorInstance()->getHeaderSize())); // Have all requested bytes been read? - assert(strlen($data) == $this->getHeaderSize()); + assert(strlen($data) == $this->getIteratorInstance()->getHeaderSize()); //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] Passed assert().', __METHOD__, __LINE__)); // Last character must be the separator //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] data(-1)=%s', __METHOD__, __LINE__, dechex(ord(substr($data, -1, 1))))); - assert(substr($data, -1, 1) == chr(self::SEPARATOR_HEADER_ENTRIES)); + assert(substr($data, -1, 1) == chr(BaseFile::SEPARATOR_HEADER_ENTRIES)); //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] Passed assert().', __METHOD__, __LINE__)); // Okay, then remove it $data = substr($data, 0, -1); // And update seek position - $this->updateSeekPosition(); + $this->getIteratorInstance()->updateSeekPosition(); /* * Now split it: @@ -85,10 +74,10 @@ class BaseIndex extends BaseFrameworkSystem { * 0 => magic * 1 => total entries */ - $header = explode(chr(self::SEPARATOR_HEADER_DATA), $data); + $header = explode(chr(BaseFile::SEPARATOR_HEADER_DATA), $data); // Set it here - $this->setHeader($header); + $this->getIteratorInstance()->setHeader($header); // Check if the array has only 3 elements //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] header(%d)=%s', __METHOD__, __LINE__, count($header), print_r($header, TRUE))); @@ -100,7 +89,7 @@ class BaseIndex extends BaseFrameworkSystem { //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] Passed assert().', __METHOD__, __LINE__)); // Check length of count - assert(strlen($header[1]) == self::LENGTH_COUNT); + assert(strlen($header[1]) == BaseFile::LENGTH_COUNT); //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] Passed assert().', __METHOD__, __LINE__)); // Decode count @@ -123,13 +112,13 @@ class BaseIndex extends BaseFrameworkSystem { self::INDEX_MAGIC, // Separator header data - chr(self::SEPARATOR_HEADER_DATA), + chr(BaseFile::SEPARATOR_HEADER_DATA), // Total entries - str_pad($this->dec2hex($this->getCounter()), self::LENGTH_COUNT, '0', STR_PAD_LEFT), + str_pad($this->dec2hex($this->getIteratorInstance()->getCounter()), BaseFile::LENGTH_COUNT, '0', STR_PAD_LEFT), // Separator header<->entries - chr(self::SEPARATOR_HEADER_ENTRIES) + chr(BaseFile::SEPARATOR_HEADER_ENTRIES) ); // Write it to disk (header is always at seek position 0) @@ -161,6 +150,17 @@ class BaseIndex extends BaseFrameworkSystem { // Set iterator here $this->setIteratorInstance($iteratorInstance); + // Calculate header size + $this->getIteratorInstance()->setHeaderSize( + strlen(self::INDEX_MAGIC) + + strlen(chr(BaseFile::SEPARATOR_HEADER_DATA)) + + BaseFile::LENGTH_COUNT + + strlen(chr(BaseFile::SEPARATOR_HEADER_ENTRIES)) + ); + + // Init counters and gaps array + $this->getIteratorInstance()->initCountersGapsArray(); + // Is the file's header initialized? if (!$this->getIteratorInstance()->isFileHeaderInitialized()) { // No, then create it (which may pre-allocate the index) @@ -184,7 +184,7 @@ class BaseIndex extends BaseFrameworkSystem { */ public function calculateMinimumBlockLength () { // Calulcate it - $length = self::LENGTH_TYPE + strlen(chr(self::SEPARATOR_TYPE_POSITION)) + self::LENGTH_POSITION + strlen(chr(self::SEPARATOR_ENTRIES)); + $length = BaseFile::LENGTH_TYPE + strlen(chr(BaseFile::SEPARATOR_TYPE_POSITION)) + BaseFile::LENGTH_POSITION + strlen(chr(BaseFile::SEPARATOR_ENTRIES)); // Return it return $length; @@ -220,6 +220,91 @@ class BaseIndex extends BaseFrameworkSystem { public function getFileName () { throw new UnsupportedOperationException(array($this, __FUNCTION__), self::EXCEPTION_UNSPPORTED_OPERATION); } + + /** + * Initializes counter for valid entries, arrays for damaged entries and + * an array for gap seek positions. If you call this method on your own, + * please re-analyze the file structure. So you are better to call + * analyzeFile() instead of this method. + * + * @return void + * @throws UnsupportedOperationException This method is not (and maybe never will be) supported + */ + public function initCountersGapsArray () { + throw new UnsupportedOperationException(array($this, __FUNCTION__, $this->getIteratorInstance()->getPointerInstance()), self::EXCEPTION_UNSPPORTED_OPERATION); + } + + /** + * Getter for header size + * + * @return $totalEntries Size of file header + * @throws UnsupportedOperationException This method is not (and maybe never will be) supported + */ + public final function getHeaderSize () { + throw new UnsupportedOperationException(array($this, __FUNCTION__, $this->getIteratorInstance()->getPointerInstance()), self::EXCEPTION_UNSPPORTED_OPERATION); + } + + /** + * Setter for header size + * + * @param $headerSize Size of file header + * @return void + * @throws UnsupportedOperationException This method is not (and maybe never will be) supported + */ + public final function setHeaderSize ($headerSize) { + throw new UnsupportedOperationException(array($this, __FUNCTION__, $this->getIteratorInstance()->getPointerInstance()), self::EXCEPTION_UNSPPORTED_OPERATION); + } + + /** + * Getter for header array + * + * @return $totalEntries Size of file header + * @throws UnsupportedOperationException This method is not (and maybe never will be) supported + */ + public final function getHeader () { + throw new UnsupportedOperationException(array($this, __FUNCTION__, $this->getIteratorInstance()->getPointerInstance()), self::EXCEPTION_UNSPPORTED_OPERATION); + } + + /** + * Setter for header + * + * @param $header Array for a file header + * @return void + * @throws UnsupportedOperationException This method is not (and maybe never will be) supported + */ + public final function setHeader (array $header) { + throw new UnsupportedOperationException(array($this, __FUNCTION__, $this->getIteratorInstance()->getPointerInstance()), self::EXCEPTION_UNSPPORTED_OPERATION); + } + + /** + * Updates seekPosition attribute from file to avoid to much access on file. + * + * @return void + * @throws UnsupportedOperationException This method is not (and maybe never will be) supported + */ + public function updateSeekPosition () { + throw new UnsupportedOperationException(array($this, __FUNCTION__, $this->getIteratorInstance()->getPointerInstance()), self::EXCEPTION_UNSPPORTED_OPERATION); + } + + /** + * Getter for total entries + * + * @return $totalEntries Total entries in this file + * @throws UnsupportedOperationException This method is not (and maybe never will be) supported + */ + public final function getCounter () { + throw new UnsupportedOperationException(array($this, __FUNCTION__, $this->getIteratorInstance()->getPointerInstance()), self::EXCEPTION_UNSPPORTED_OPERATION); + } + + /** + * "Getter" for file size + * + * @return $fileSize Size of currently loaded file + */ + public function getFileSize () { + // Call iterator's method + return $this->getIteratorInstance()->getFileSize(); + } } // [EOF]