X-Git-Url: https://git.mxchange.org/?p=core.git;a=blobdiff_plain;f=framework%2Fmain%2Fclasses%2Ffile_directories%2Fbinary%2Fclass_BaseBinaryFile.php;h=d7aa398bbfcd133f1a1af7d3bfc9810426407268;hp=238c3930fb4ec99361514a9a2ec22f92369a6fde;hb=HEAD;hpb=78c80d535ab3e108f8c89f2aae9ebe02270e4d63

diff --git a/framework/main/classes/file_directories/binary/class_BaseBinaryFile.php b/framework/main/classes/file_directories/binary/class_BaseBinaryFile.php
index 238c3930..d7aa398b 100644
--- a/framework/main/classes/file_directories/binary/class_BaseBinaryFile.php
+++ b/framework/main/classes/file_directories/binary/class_BaseBinaryFile.php
@@ -4,20 +4,29 @@ namespace Org\Mxchange\CoreFramework\Filesystem\File;
 
 // Import framework stuff
 use Org\Mxchange\CoreFramework\Bootstrap\FrameworkBootstrap;
-use Org\Mxchange\CoreFramework\Factory\ObjectFactory;
-use Org\Mxchange\CoreFramework\Filesystem\Block;
-use Org\Mxchange\CoreFramework\Filesystem\Block\CalculatableBlock;
+use Org\Mxchange\CoreFramework\EntryPoint\ApplicationEntryPoint;
+use Org\Mxchange\CoreFramework\Factory\Object\ObjectFactory;
 use Org\Mxchange\CoreFramework\Filesystem\File\BaseAbstractFile;
+use Org\Mxchange\CoreFramework\Filesystem\FilePointer;
+use Org\Mxchange\CoreFramework\Generic\FrameworkInterface;
+use Org\Mxchange\CoreFramework\Middleware\Debug\DebugMiddleware;
+use Org\Mxchange\CoreFramework\Traits\Index\IndexableTrait;
+use Org\Mxchange\CoreFramework\Traits\Stack\StackableTrait;
 
 // Import SPL stuff
+use \BadMethodCallException;
+use \InvalidArgumentException;
+use \LogicException;
+use \OutOfBoundsException;
 use \SplFileInfo;
+use \UnexpectedValueException;
 
 /**
  * A general binary file class
  *
  * @author		Roland Haeder <webmaster@ship-simu.org>
  * @version		0.0.0
- * @copyright	Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2020 Core Developer Team
+ * @copyright	Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2023 Core Developer Team
  * @license		GNU GPL 3.0 or any newer version
  * @link		http://www.ship-simu.org
  *
@@ -34,68 +43,15 @@ use \SplFileInfo;
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-abstract class BaseBinaryFile extends BaseAbstractFile {
-	/**
-	 * Separator for header data
-	 */
-	const SEPARATOR_HEADER_DATA = 0x01;
-
-	/**
-	 * Separator header->entries
-	 */
-	const SEPARATOR_HEADER_ENTRIES = 0x02;
-
-	/**
-	 * Separator group->hash
-	 */
-	const SEPARATOR_GROUP_HASH = 0x03;
-
-	/**
-	 * Separator hash->value
-	 */
-	const SEPARATOR_HASH_VALUE = 0x04;
-
-	/**
-	 * Separator entry->entry
-	 */
-	const SEPARATOR_ENTRIES = 0x05;
-
-	/**
-	 * Separator type->position
-	 */
-	const SEPARATOR_TYPE_POSITION = 0x06;
-
-	/**
-	 * Length of count
-	 */
-	const LENGTH_COUNT = 20;
-
-	/**
-	 * Length of position
-	 */
-	const LENGTH_POSITION = 20;
-
-	/**
-	 * Length of group
-	 */
-	const LENGTH_GROUP = 10;
+abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
+	// Load traits
+	use StackableTrait;
+	use IndexableTrait;
 
 	/**
-	 * Maximum length of entry type
+	 * Configuration cache
 	 */
-	const LENGTH_TYPE = 20;
-
-	//***** Array elements for 'gaps' array *****
-
-	/**
-	 * Start of gap
-	 */
-	const GAPS_INDEX_START = 'start';
-
-	/**
-	 * End of gap
-	 */
-	const GAPS_INDEX_END = 'end';
+	private static $configCache = [];
 
 	/**
 	 * Current seek position
@@ -110,17 +66,17 @@ abstract class BaseBinaryFile extends BaseAbstractFile {
 	/**
 	 * File header
 	 */
-	private $header = array();
+	private $header = [];
 
 	/**
 	 * Seek positions for gaps ("fragmentation")
 	 */
-	private $gaps = array();
+	private $gaps = [];
 
 	/**
 	 * Seek positions for damaged entries (e.g. mismatching hash sum, ...)
 	 */
-	private $damagedEntries = array();
+	private $damagedEntries = [];
 
 	/**
 	 * Back-buffer
@@ -138,62 +94,55 @@ abstract class BaseBinaryFile extends BaseAbstractFile {
 	 * @param	$className	Name of the class
 	 * @return	void
 	 */
-	protected function __construct ($className) {
+	protected function __construct (string $className) {
 		// Call parent constructor
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: className=%s - CALLED!', $className));
 		parent::__construct($className);
 
-		// Init counters and gaps array
-		$this->initCountersGapsArray();
+		// Trace message
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('FRAMEWORK-DIRECTORY-POINTER: EXIT!');
 	}
 
 	/**
-	 * Checks whether the abstracted file only contains gaps by counting all
-	 * gaps' bytes together and compare it to total length.
+	 * Setter for backBuffer field
 	 *
-	 * @return	$isGapsOnly		Whether the abstracted file only contains gaps
+	 * @param	$backBuffer		Characters to "store" in back-buffer
+	 * @return	void
 	 */
-	private function isFileOnlyGaps () {
-		// First/last gap found?
-		/* Only for debugging
-		if (isset($this->gaps[0])) {
-			// Output first and last gap
-			self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] this->gaps[0]=%s,this->gaps[%s]=%s', __METHOD__, __LINE__, print_r($this->gaps[0], true), (count($this->gaps) - 1), print_r($this->gaps[count($this->gaps) - 1], true)));
-		} // END - if
-		*/
-
-		// Now count every gap
-		$gapsSize = 0;
-		foreach ($this->gaps as $gap) {
-			// Calculate size of found gap: end-start including both
-			$gapsSize += ($gap[self::GAPS_INDEX_END] - $gap[self::GAPS_INDEX_START]);
-		} // END - if
-
-		// Debug output
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] gapsSize=%s,this->headerSize=%s', __METHOD__, __LINE__, $gapsSize, $this->getHeaderSize()));
-
-		// Total gap size + header size must be same as file size
-		$isGapsOnly = (($this->getHeaderSize() + $gapsSize) == $this->getFileSize());
+	private function setBackBuffer (string $backBuffer) {
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Setting backBuffer(%d)=%s - CALLED!', strlen($backBuffer), $backBuffer));
+		$this->backBuffer = $backBuffer;
+	}
 
-		// Return status
-		return $isGapsOnly;
+	/**
+	 * Getter for backBuffer field
+	 *
+	 * @return	$backBuffer		Characters "stored" in back-buffer
+	 */
+	private function getBackBuffer () {
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Getting this->backBuffer(%d)=%s - CALLED!', strlen($this->backBuffer), $this->backBuffer));
+		return $this->backBuffer;
 	}
 
 	/**
-	 * 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.
+	 * Setter for current field
 	 *
+	 * @param	$current	Characters to set a currently loaded block
 	 * @return	void
 	 */
-	public function initCountersGapsArray () {
-		// Init counter and seek position
-		$this->setCounter(0);
-		$this->setSeekPosition(0);
+	private function setCurrentBlock (string $currentBlock) {
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Setting currentBlock(%d)=%s - CALLED!', strlen($currentBlock), $currentBlock));
+		$this->currentBlock = $currentBlock;
+	}
 
-		// Init arrays
-		$this->gaps = array();
-		$this->damagedEntries = array();
+	/**
+	 * Gets currently read data
+	 *
+	 * @return	$current	Currently read data
+	 */
+	public function getCurrentBlock () {
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Getting this->currentBlock(%d)=%s - CALLED!', strlen($this->currentBlock), $this->currentBlock));
+		return $this->currentBlock;
 	}
 
 	/**
@@ -202,7 +151,7 @@ abstract class BaseBinaryFile extends BaseAbstractFile {
 	 * @return	$totalEntries	Size of file header
 	 */
 	public final function getHeaderSize () {
-		// Get it
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Getting this->headerSize=%d - CALLED!', $this->headerSize));
 		return $this->headerSize;
 	}
 
@@ -212,8 +161,8 @@ abstract class BaseBinaryFile extends BaseAbstractFile {
 	 * @param	$headerSize		Size of file header
 	 * @return	void
 	 */
-	public final function setHeaderSize ($headerSize) {
-		// Set it
+	public final function setHeaderSize (int $headerSize) {
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Setting headerSize=%d - CALLED!', $headerSize));
 		$this->headerSize = $headerSize;
 	}
 
@@ -244,7 +193,7 @@ abstract class BaseBinaryFile extends BaseAbstractFile {
 	 * @return	$seekPosition	Current seek position (stored here in object)
 	 */
 	public final function getSeekPosition () {
-		// Get it
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Getting this->seekPosition=%d - CALLED!', $this->seekPosition));
 		return $this->seekPosition;
 	}
 
@@ -254,51 +203,140 @@ abstract class BaseBinaryFile extends BaseAbstractFile {
 	 * @param	$seekPosition	Current seek position (stored here in object)
 	 * @return	void
 	 */
-	protected final function setSeekPosition ($seekPosition) {
-		// And set it
+	protected final function setSeekPosition (int $seekPosition) {
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Setting seekPosition=%d - CALLED!', $seekPosition));
 		$this->seekPosition = $seekPosition;
 	}
 
 	/**
-	 * Updates seekPosition attribute from file to avoid to much access on file.
+	 * Checks whether the abstracted file only contains gaps by counting all
+	 * gaps' bytes together and compare it to total length.
 	 *
+	 * @return	$isGapsOnly		Whether the abstracted file only contains gaps
+	 * @throws	OutOfBoundsException	If calculated file size is larger than actual
+	 */
+	public function isFileGapsOnly () {
+		// Count every gap
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: CALLED!');
+		$gapsSize = 0;
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: this->gaps()=%d', count($this->gaps)));
+		foreach ($this->gaps as $gap) {
+			// Calculate size of found gap: end-start including both
+			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: gap[%s]=%d,ga[%s]=%d', BinaryFile::GAPS_INDEX_START, $gap[BinaryFile::GAPS_INDEX_START], BinaryFile::GAPS_INDEX_END, $gap[BinaryFile::GAPS_INDEX_END]));
+			$gapsSize += ($gap[BinaryFile::GAPS_INDEX_END] - $gap[BinaryFile::GAPS_INDEX_START]);
+
+			// Debug message
+			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: gapsSize=%d', $gapsSize));
+		}
+
+		// Total gap size + header size + 1 must be same as file size
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: gapsSize=%d,this->headerSize=%d,this->fileSize=%d', $gapsSize, $this->getHeaderSize(), $this->getFileSize()));
+		$determinedFileSize = ($gapsSize + $this->getHeaderSize() + 1);
+
+		// Should not be more!
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: determinedFileSize=%d,this->fileSize=%d', $determinedFileSize, $this->getFileSize()));
+		if ($determinedFileSize > $this->getFileSize()) {
+			// Should not happen
+			throw new OutOfBoundsException(sprintf('determinedFileSize=%d is larger than this->fileSize=%d', $determinedFileSize, $this->getFileSize()));
+		}
+
+		// Is it same?
+		$isGapsOnly = ($determinedFileSize == $this->getFileSize());
+
+		// Return flag
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: isGapsOnly=%d - EXIT!', intval($isGapsOnly)));
+		return $isGapsOnly;
+	}
+
+	/**
+	 * Marks whole file as gaps-only (freshly created file
+	 *
+	 * @param	$type	Type of file
+	 * @param	$minimumBlockLength		Minimum block length
 	 * @return	void
 	 */
-	public function updateSeekPosition () {
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] CALLED!', __METHOD__, __LINE__));
+	private function markFileGapsOnly (string $type, int $minimumBlockLength) {
+		// Is config cache there?
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: type=%s,minimumBlockLength=%d - CALLED!', $type, $minimumBlockLength));
+		if (!isset(self::$configCache[$type . '_pre_allocate_count'])) {
+			// Then set it
+			self::$configCache[$type . '_pre_allocate_count'] = FrameworkBootstrap::getConfigurationInstance()->getConfigEntry($type . '_pre_allocate_count');
+		}
 
-		// Get key (= seek position)
-		$seekPosition = $this->key();
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] Setting seekPosition=%s', __METHOD__, __LINE__, $seekPosition));
+		// Very simple to do ...
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: self:configCache[%s_pre_allocate_count]=%d', $type, self::$configCache[$type . '_pre_allocate_count']));
+		for ($idx = 0; $idx < self::$configCache[$type . '_pre_allocate_count']; $idx++) {
+			// Calculate start/end positions
+			$startPosition = $idx * $minimumBlockLength;
+			$endPosition = $idx * $minimumBlockLength + $minimumBlockLength;
 
-		// And set it here
-		$this->setSeekPosition($seekPosition);
+			// Mark start and end position as gap
+			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Invoking this->addGap(%d, %d) ...', $startPosition, $endPosition));
+			$this->addGap($startPosition, $endPosition);
+		}
 
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] EXIT!', __METHOD__, __LINE__));
+		// Trace message
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
-	 * Seeks to beginning of file, updates seek position in this object and
-	 * flushes the header.
+	 * Adds a gap for given start and end position
 	 *
+	 * @param	$startPosition	Start seek position
+	 * @param	$endPosition	End seek position
 	 * @return	void
 	 */
-	protected function rewindUpdateSeekPosition () {
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] CALLED!', __METHOD__, __LINE__));
+	private function addGap(int $startPosition, int $endPosition) {
+		// Push to gaps array
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: startPosition=%d,endPosition=%d - CALLED!', $startPosition, $endPosition));
+		array_push($this->gaps, [
+			BinaryFile::GAPS_INDEX_START  => $startPosition,
+			BinaryFile::GAPS_INDEX_END    => $endPosition,
+		]);
+
+		// Trace message
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
+	}
 
-		// flushFileHeader must be callable
-		assert(is_callable(array($this, 'flushFileHeader')));
+	/**
+	 * Initializes the back-buffer by setting it to an empty string.
+	 *
+	 * @return	void
+	 */
+	private function initBackBuffer () {
+		// Simply call the setter
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: CALLED!');
+		$this->setBackBuffer('');
+
+		// Trace message
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
+	}
 
+	/**
+	 * Seeks to beginning of file, updates seek position in this object and
+	 * flushes the header.
+	 *
+	 * @param	$flushHeader	Wether the file's header should be flushed (default: false)
+	 * @return	void
+	 */
+	protected function rewindUpdateSeekPosition (bool $flushHeader = false) {
 		// Seek to beginning of file
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: flushHeader=%d - CALLED!', intval($flushHeader)));
 		$this->rewind();
 
 		// And update seek position ...
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->updateSeekPosition() ...');
 		$this->updateSeekPosition();
 
-		// ... to write it back into the file
-		$this->flushFileHeader();
+		// Flush headers?
+		if ($flushHeader) {
+			// ... to write it back into the file
+			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->flushFileHeader() ...');
+			$this->flushFileHeader();
+		}
 
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] EXIT!', __METHOD__, __LINE__));
+		// Trace message
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
@@ -307,97 +345,134 @@ abstract class BaseBinaryFile extends BaseAbstractFile {
 	 * @return	void
 	 */
 	protected function seekToOldPosition () {
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] CALLED!', __METHOD__, __LINE__));
-
 		// Seek to currently ("old") saved position
-		$this->seek($this->getSeekPosition());
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: CALLED!');
+		$this->seek($this->determineSeekPosition());
 
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] EXIT!', __METHOD__, __LINE__));
+		// Trace message
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
-	 * Checks whether the block separator has been found
+	 * Initializes this file class
 	 *
-	 * @param	$str		String to look in
-	 * @return	$isFound	Whether the block separator has been found
+	 * @param	$fileInfoInstance	An instance of a SplFileInfo class
+	 * @return	void
 	 */
-	public static function isBlockSeparatorFound ($str) {
-		// Determine it
-		$isFound = (strpos($str, chr(self::SEPARATOR_ENTRIES)) !== false);
+	protected function initFile (SplFileInfo $fileInfoInstance) {
+		// Get a file i/o pointer instance
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: fileInfoInstance[%s]=%s - CALLED!', get_class($fileInfoInstance), $fileInfoInstance));
+		$pointerInstance = ObjectFactory::createObjectByConfiguredName('file_raw_input_output_class', array($fileInfoInstance));
 
-		// Return result
-		return $isFound;
+		// ... and set it here
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: Setting pointerInstance=%s ...', $pointerInstance->__toString()));
+		$this->setPointerInstance($pointerInstance);
+
+		// Trace message
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
-	 * Initializes the back-buffer by setting it to an empty string.
+	 * Marks the currently loaded block as empty (with length of the block)
 	 *
+	 * @param	$length		Length of the block
 	 * @return	void
+	 * @throws	InvalidArgumentException	If a parameter is invalid
 	 */
-	private function initBackBuffer () {
-		// Simply call the setter
-		$this->setBackBuffer('');
+	protected function markCurrentBlockAsEmpty (int $length) {
+		// Validate parameter
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: length=%d - CALLED!', $length));
+		if ($length < 1) {
+			// Length cannot below one
+			throw new InvalidArgumentException(sprintf('length=%d is not valid', $length), FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
+		}
+
+		// Get current seek position
+		$currentPosition = $this->determineSeekPosition();
+
+		// Now add it as gap entry
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Invoking this->addGap(%d, %d) ..', ($currentPosition - $length), $currentPosition));
+		$this->addGap(($currentPosition - $length), $currentPosition);
+
+		// Trace message
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
-	 * Setter for backBuffer field
+	 * 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
+	 * analyzeFileStructure() instead of this method.
 	 *
-	 * @param	$backBuffer		Characters to "store" in back-buffer
 	 * @return	void
 	 */
-	private function setBackBuffer ($backBuffer) {
-		// Cast to string (so no arrays or objects)
-		$backBuffer = (string) $backBuffer;
+	public function initCountersGapsArray () {
+		// Init counter and seek position to header size
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->determineSeekPosition() - CALLED!');
+		$seekPosition = $this->getSeekPosition();
 
-		// ... and set it
-		$this->backBuffer = $backBuffer;
-	}
+		// Set counter
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: seekPosition=%d', $seekPosition));
+		$this->setCounter(0);
 
-	/**
-	 * Getter for backBuffer field
-	 *
-	 * @return	$backBuffer		Characters "stored" in back-buffer
-	 */
-	private function getBackBuffer () {
-		return $this->backBuffer;
+		// Get header size
+		$headerSize = $this->getHeaderSize();
+
+		// Set it
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: Setting this->seekPosition=%d ...', $headerSize));
+		$this->setSeekPosition($headerSize);
+
+		// Init arrays
+		$this->gaps = [];
+		$this->damagedEntries = [];
+
+		// Seek back to old position
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Invoking this->seek(%d) ...', $seekPosition));
+		$this->seek($seekPosition);
+
+		// Trace message
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
-	 * Setter for currentBlock field
+	 * Updates seekPosition attribute from file to avoid to much access on file.
 	 *
-	 * @param	$currentBlock		Characters to set a currently loaded block
 	 * @return	void
 	 */
-	private function setCurrentBlock ($currentBlock) {
-		// Cast to string (so no arrays or objects)
-		$currentBlock = (string) $currentBlock;
+	public function updateSeekPosition () {
+		// Get key (= seek position)
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: CALLED!');
+		$seekPosition = $this->determineSeekPosition();
 
-		// ... and set it
-		$this->currentBlock = $currentBlock;
-	}
+		// And set it here
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: seekPosition=%d', $seekPosition));
+		$this->setSeekPosition($seekPosition);
 
-	/**
-	 * Gets currently read data
-	 *
-	 * @return	$current	Currently read data
-	 */
-	public function getCurrentBlock () {
-		// Return it
-		return $this->currentBlock;
+		// Trace message
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
-	 * Initializes this file class
+	 * Checks whether the block separator has been found
 	 *
-	 * @param	$infoInstance	An instance of a SplFileInfo class
-	 * @return	void
+	 * @param	$str		String to look in
+	 * @return	$isFound	Whether the block separator has been found
+	 * @throws	InvalidArgumentException	If a parameter is not valid
 	 */
-	protected function initFile (SplFileInfo $infoInstance) {
-		// Get a file i/o pointer instance
-		$pointerInstance = ObjectFactory::createObjectByConfiguredName('file_raw_input_output_class', array($infoInstance));
+	public static function isBlockSeparatorFound (string $str) {
+		// Validate parameter
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: str=%s - CALLED!', $str));
+		if (empty($str)) {
+			// Throw IAE
+			throw new InvalidArgumentException('Parameter "str" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
+		}
 
-		// ... and set it here
-		$this->setPointerInstance($pointerInstance);
+		// Determine it
+		$isFound = (strpos($str, chr(BinaryFile::SEPARATOR_ENTRIES)) !== false);
+
+		// Return result
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: isFound=%d - EXIT!', intval($isFound)));
+		return $isFound;
 	}
 
 	/**
@@ -407,46 +482,75 @@ abstract class BaseBinaryFile extends BaseAbstractFile {
 	 * @param	$data			Data to be written
 	 * @param	$flushHeader	Whether to flush the header (default: flush)
 	 * @return	void
+	 * @throws	OutOfBoundsException	If the position is not seekable
+	 * @throws	InvalidArgumentException	If a parameter is invalid
 	 */
-	public function writeData ($seekPosition, $data, $flushHeader = true) {
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] seekPosition=%s,data()=%d - CALLED!', __METHOD__, __LINE__, $seekPosition, strlen($data)));
+	public function writeData (int $seekPosition, string $data, bool $flushHeader = true) {
+		// Validate parameter
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: seekPosition=%s,data()=%d,flushHeader=%d - CALLED!', $seekPosition, strlen($data), intval($flushHeader)));
+		if ($seekPosition < 0) {
+			// Invalid seek position
+			throw new OutOfBoundsException(sprintf('seekPosition=%d is not valid', $seekPosition));
+		} elseif (empty($data)) {
+			// Empty data is invalid, too
+			throw new InvalidArgumentException('Parameter "data" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
+		}
 
 		// Write data at given position
-		$this->getPointerInstance()->writeAtPosition($seekPosition, $data);
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Invoking this->writeAtPosition(%d,%s) ...', $seekPosition, $data));
+		$this->writeAtPosition($seekPosition, $data);
 
 		// Increment counter
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->incrementCounter() ...');
 		$this->incrementCounter();
 
 		// Update seek position
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->updateSeekPosition() ...');
 		$this->updateSeekPosition();
 
 		// Flush the header?
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: flushHeader=%d', intval($flushHeader)));
 		if ($flushHeader === true) {
 			// Flush header
+			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->flushFileHeader() ...');
 			$this->flushFileHeader();
 
 			// Seek to old position
+			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->seekToOldPosition() ...');
 			$this->seekToOldPosition();
-		} // END - if
+		}
 
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] EXIT!', __METHOD__, __LINE__));
+		// Trace message
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
-	 * Marks the currently loaded block as empty (with length of the block)
+	 * Writes at given position by seeking to it.
 	 *
-	 * @param	$length		Length of the block
-	 * @return	void
+	 * @param	$seekPosition	Seek position in file
+	 * @param	$dataStream		Data to be written
+	 * @return	mixed			Number of writes bytes or false on error
+	 * @throws	OutOfBoundsException	If the position is not seekable
+	 * @throws	InvalidArgumentException	If a parameter is not valid
 	 */
-	protected function markCurrentBlockAsEmpty ($length) {
-		// Get current seek position
-		$currentPosition = $this->key();
+	public function writeAtPosition (int $seekPosition, string $dataStream) {
+		// Validate parameter
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: seekPosition=%d,dataStream(%d)=%s - CALLED!', $seekPosition, strlen($dataStream), $dataStream));
+		if ($seekPosition < 0) {
+			// Invalid seek position
+			throw new OutOfBoundsException(sprintf('seekPosition=%d is not valid.', $seekPosition));
+		} elseif (empty($dataStream)) {
+			// Empty dataStream
+			throw new InvalidArgumentException('Parameter "dataStream" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
+		}
 
-		// Now add it as gap entry
-		array_push($this->gaps, array(
-			self::GAPS_INDEX_START  => ($currentPosition - $length),
-			self::GAPS_INDEX_END    => $currentPosition,
-		));
+		// Call pointer's method
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Invoking this->pointerInstance->writeAtPosition(%d, %s) ...', $seekPosition, $dataStream));
+		$status = $this->getPointerInstance()->writeAtPosition($seekPosition, $dataStream);
+
+		// Return status
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: status[%s]=%d - EXIT!', gettype($status), $status));
+		return $status;
 	}
 
 	/**
@@ -455,32 +559,29 @@ abstract class BaseBinaryFile extends BaseAbstractFile {
 	 * @return	$isInitialized	Whether the file header is initialized
 	 */
 	public function isFileHeaderInitialized () {
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] CALLED!', __METHOD__, __LINE__));
-
 		// Default is not initialized
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: CALLED!');
 		$isInitialized = false;
 
 		// Is the file initialized?
 		if ($this->isFileInitialized()) {
 			// Some bytes has been written, so rewind to start of it.
-			$rewindStatus = $this->rewind();
-			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] rewindStatus=%s', __METHOD__, __LINE__, $rewindStatus));
-
-			// Is the rewind() call successfull?
-			if ($rewindStatus != 1) {
-				// Something bad happened
-				self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] Could not rewind().', __METHOD__, __LINE__));
-			} // END - if
+			$this->rewind();
 
 			// Read file header
+			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->readFileHeader() ...');
 			$this->readFileHeader();
 
+			// Get header count
+			$headerCount = count($this->getHeader());
+
 			// The above method does already check the header
-			$isInitialized = true;
-		} // END - if
+			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: headerCount=%d', $headerCount));
+			$isInitialized = ($headerCount > 0);
+		}
 
 		// Return result
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] isInitialized=%d - EXIT!', __METHOD__, __LINE__, intval($isInitialized)));
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: isInitialized=%d - EXIT!', intval($isInitialized)));
 		return $isInitialized;
 	}
 
@@ -488,25 +589,28 @@ abstract class BaseBinaryFile extends BaseAbstractFile {
 	 * Checks whether the assigned file has been initialized
 	 *
 	 * @return	$isInitialized		Whether the file's size is zero
+	 * @throws	UnexpectedValueException	If an unexpected value was returned
 	 */
 	public function isFileInitialized () {
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] CALLED!', __METHOD__, __LINE__));
-
 		// Get it from iterator which holds the pointer instance. If false is returned
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: CALLED!');
 		$fileSize = $this->size();
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] fileSize=%s', __METHOD__, __LINE__, $fileSize));
 
 		/*
 		 * The returned file size should not be false or NULL as this means
 		 * that the pointer class does not work correctly.
 		 */
-		assert(is_int($fileSize));
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: fileSize[%s]=%d', gettype($fileSize), $fileSize));
+		if (!is_int($fileSize)) {
+			// Bad file?
+			throw new UnexpectedValueException(sprintf('fileSize[]=%s is unexpected', gettype($fileSize)), FrameworkInterface::EXCEPTION_UNEXPECTED_VALUE);
+		}
 
 		// Is more than 0 returned?
 		$isInitialized = ($fileSize > 0);
 
 		// Return result
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] isInitialized=%d - EXIT!', __METHOD__, __LINE__, intval($isInitialized)));
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: isInitialized=%d - EXIT!', intval($isInitialized)));
 		return $isInitialized;
 	}
 
@@ -514,58 +618,27 @@ abstract class BaseBinaryFile extends BaseAbstractFile {
 	 * Creates the assigned file
 	 *
 	 * @return	void
+	 * @throws	BadMethodCallException	If this file's header is already initialized
 	 */
 	public function createFileHeader () {
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] CALLED!', __METHOD__, __LINE__));
-
 		// The file's header should not be initialized here
-		assert(!$this->isFileHeaderInitialized());
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: CALLED!');
+		if ($this->isFileHeaderInitialized()) {
+			// Bad method call
+			//* DEBUG-DIE: */ ApplicationEntryPoint::exitApplication(sprintf('[%s:%d]: this=%s', __METHOD__, __LINE__, print_r($this, TRUE)));
+			throw new BadMethodCallException('File header is already initialized but method called', FrameworkInterface::EXCEPTION_BAD_METHOD_CALL);
+		}
 
 		// Simple flush file header which will create it.
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->flushFileHeader() ...');
 		$this->flushFileHeader();
 
 		// Rewind seek position (to beginning of file) and update/flush file header
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->rewindUpdateSeekPosition() ...');
 		$this->rewindUpdateSeekPosition();
 
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] EXIT!', __METHOD__, __LINE__));
-	}
-
-	/**
-	 * Pre-allocates file (if enabled) with some space for later faster write access.
-	 *
-	 * @param	$type	Type of the file
-	 * @return	void
-	 */
-	public function preAllocateFile ($type) {
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] CALLED!', __METHOD__, __LINE__));
-
-		// Is it enabled?
-		if (FrameworkBootstrap::getConfigurationInstance()->getConfigEntry($type . '_pre_allocate_enabled') != 'Y') {
-			// Not enabled
-			self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] Not pre-allocating file.', __METHOD__, __LINE__));
-
-			// Don't continue here.
-			return;
-		} // END - if
-
-		// Message to user
-		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] Pre-allocating file ...', __METHOD__, __LINE__));
-
-		// Calculate minimum length for one entry
-		$minLengthEntry = $this->getBlockInstance()->calculateMinimumBlockLength();
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] minLengthEntry=%s', __METHOD__, __LINE__, $minLengthEntry));
-
-		// Calulcate seek position
-		$seekPosition = $minLengthEntry * FrameworkBootstrap::getConfigurationInstance()->getConfigEntry($type . '_pre_allocate_count');
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] seekPosition=%s', __METHOD__, __LINE__, $seekPosition));
-
-		// Now simply write a NUL there. This will pre-allocate the file.
-		$this->writeData($seekPosition, chr(0));
-
-		// Rewind seek position (to beginning of file) and update/flush file header
-		$this->rewindUpdateSeekPosition();
-
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] EXIT!', __METHOD__, __LINE__));
+		// Trace message
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
@@ -575,7 +648,12 @@ abstract class BaseBinaryFile extends BaseAbstractFile {
 	 */
 	public function determineSeekPosition () {
 		// Call pointer instance
-		return $this->getPointerInstance()->determineSeekPosition();
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: CALLED!');
+		$seekPosition = $this->getPointerInstance()->determineSeekPosition();
+
+		// Return position
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: seekPosition=%d - EXIT!', $seekPosition));
+		return $seekPosition;
 	}
 
 	/**
@@ -584,10 +662,22 @@ abstract class BaseBinaryFile extends BaseAbstractFile {
 	 * @param	$offset		Offset to seek to (or used as "base" for other seeks)
 	 * @param	$whence		Added to offset (default: only use offset to seek to)
 	 * @return	$status		Status of file seek: 0 = success, -1 = failed
+	 * @throws	OutOfBoundsException	If the position is not seekable
 	 */
-	public function seek ($offset, $whence = SEEK_SET) {
+	public function seek (int $offset, int $whence = SEEK_SET) {
+		// Validate parameter
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: offset=%d,whence=%d - CALLED!', $offset, $whence));
+		if ($offset < 0) {
+			// No offset is smaller than zero
+			throw new OutOfBoundsException(sprintf('offset=%d is not valid', $offset));
+		}
+
 		// Call pointer instance
-		return $this->getPointerInstance()->seek($offset, $whence);
+		$status = $this->getPointerInstance()->seek($offset, $whence);
+
+		// Return status
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: status[%s]=%d - EXIT!', gettype($status), $status));
+		return $status;
 	}
 
 	/**
@@ -595,23 +685,41 @@ abstract class BaseBinaryFile extends BaseAbstractFile {
 	 *
 	 * @param	$bytes	Amount of bytes to read
 	 * @return	$data	Data read from file
+	 * @throws	OutOfBoundsException	If the position is not seekable
 	 */
-	public function read ($bytes = NULL) {
-		// $bytes shall be integer
-		assert(is_int($bytes));
+	public function read (int $bytes = 0) {
+		// Validate parameter
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: bytes=%d - CALLED!', $bytes));
+		if ($bytes < 0) {
+			// Throw exception
+			throw new OutOfBoundsException(sprintf('bytes=%d is not valid', $bytes));
+		}
 
 		// Call pointer instance
-		return $this->getPointerInstance()->read($bytes);
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Invoking this->pointerInstance->read(%d) ...', $bytes));
+		$data = $this->getPointerInstance()->read($bytes);
+
+		// Update seek position
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->updateSeekPosition() ...');
+		$this->updateSeekPosition();
+
+		// Return data
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: data[%s]=%s - EXIT!', gettype($data), $data));
+		return $data;
 	}
 
 	/**
 	 * Rewinds to the beginning of the file
 	 *
-	 * @return	$status		Status of this operation
+	 * @return	void
 	 */
 	public function rewind () {
 		// Call pointer instance
-		return $this->getPointerInstance()->rewind();
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: CALLED!');
+		$this->getPointerInstance()->rewind();
+
+		// Trace message
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
@@ -620,92 +728,99 @@ abstract class BaseBinaryFile extends BaseAbstractFile {
 	 * only gaps are found, the file is considered as "virgin" (no entries).
 	 *
 	 * @return	void
+	 * @throws	BadMethodCallException	If this method is called but file is not initialized
 	 */
-	public function analyzeFile () {
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] CALLED!', __METHOD__, __LINE__));
-
+	public function analyzeFileStructure () {
 		// Make sure the file is initialized
-		assert($this->isFileInitialized());
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: CALLED!');
+		if (!$this->isFileInitialized()) {
+			// Bad method call
+			throw new BadMethodCallException('Method called but file is not initialized.', FrameworkInterface::EXCEPTION_BAD_METHOD_CALL);
+		}
 
 		// Init counters and gaps array
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->initCounterGapsArrays() ...');
 		$this->initCountersGapsArray();
 
 		// Output message (as this may take some time)
-		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] Analyzing file structure ... (this may take some time)', __METHOD__, __LINE__));
+		self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('Analyzing file structure ... (this may take some time)'));
 
-		// First rewind to the begining
-		$this->rewind();
+		// First Seek to right after file header
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Invoking this->seek(%d) ...', $this->getHeaderSize() + 1));
+		$this->seek($this->getHeaderSize() + 1);
 
 		// Then try to load all entries
-		while ($this->valid()) {
-			// Go to next entry
-			$this->next();
-
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: this->seekPosition=%d, looping through file ...', $this->getSeekPosition()));
+		while ($this->isValid()) {
 			// Get current entry
 			$current = $this->getCurrentBlock();
 
+			// Go to next entry
+			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: current=%s, Invoking this->readNextBlock() ...', $current));
+			$this->readNextBlock();
+
 			/*
 			 * If the block is empty, maybe the whole file is? This could mean
 			 * that the file has been pre-allocated.
 			 */
-			if (empty($current)) {
+			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: current(%d)[]=%s', strlen($current), gettype($current)));
+			if (empty(trim($current, chr(0)))) {
 				// Then skip this part
+				//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: current[]=%s is empty - CONTINUE!', gettype($current)));
 				continue;
-			} // END - if
+			}
 
-			// Debug message
-			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] current()=%d', __METHOD__, __LINE__, strlen($current)));
-		} // END - while
+			// Handle current record
+			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: current(%d)[%s]=%s', strlen($current), gettype($current), $current));
+		}
 
 		// If the last read block is empty, check gaps
-		if (empty($current)) {
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: current()=%d', strlen($current)));
+		if (empty(trim($current, chr(0)))) {
 			// Output message
-			self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] Found a total of %s gaps.', __METHOD__, __LINE__, count($this->gaps)));
+			self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: Found a total of %d gaps.', count($this->gaps)));
 
 			// Check gaps, if the whole file is empty.
-			if ($this->isFileOnlyGaps()) {
+			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->isFileGapsOnly() ...');
+			if ($this->isFileGapsOnly()) {
 				// Only gaps, so don't continue here.
+				//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage('BASE-BINARY-FILE: File is gaps-only - EXIT!');
 				return;
-			} // END - if
+			}
+		}
 
-			/*
-			 * The above call has calculated a total size of all gaps. If the
-			 * percentage of gaps passes a "soft" limit and last
-			 * defragmentation is to far in the past, or if a "hard" limit has
-			 * reached, run defragmentation.
-			 */
-			if ($this->isDefragmentationNeeded()) {
-				// Run "defragmentation"
-				$this->doRunDefragmentation();
-			} // END - if
-		} // END - if
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d:] EXIT!', __METHOD__, __LINE__));
+		/*
+		 * The above call has calculated a total size of all gaps. If the
+		 * percentage of gaps passes a "soft" limit and last
+		 * defragmentation is to far in the past, or if a "hard" limit has
+		 * reached, run defragmentation.
+		 */
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->isDefragmentationNeeded() ...');
+		if ($this->isDefragmentationNeeded()) {
+			// Run "defragmentation"
+			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->doRunDefragmentation() ...');
+			$this->doRunDefragmentation();
+		}
+
+		// Trace message
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
-	 * Advances to next "block" of bytes
+	 * Reads next "block" of given bytes into $currentBlock field. THis method
+	 * loads the whole file into memory when the file is just freshly
+	 * initialized (only zeros in it).
 	 *
 	 * @return	void
+	 * @throws	InvalidArgumentException	If a parameter is not valid
 	 */
-	public function next () {
-		// Is there nothing to read?
-		if (!$this->valid()) {
-			// Nothing to read
-			return;
-		} // END - if
-
-		// Debug message
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d] key()=%d', __FUNCTION__, __LINE__, $this->key()));
-
-		// Make sure the block instance is set
-		assert($this->getBlockInstance() instanceof CalculatableBlock);
-
-		// First calculate minimum block length
-		$length = $this->getBlockInstance()->calculateMinimumBlockLength();
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d] length=%s', __FUNCTION__, __LINE__, $length));
-
-		// Short be more than zero!
-		assert($length > 0);
+	protected function readNextBlockByLength (int $length) {
+		// Validate parameter
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: this->seekPosition=%d,length=%d - CALLED!', $this->getSeekPosition(), $length));
+		if ($length < 1) {
+			// Throw IAE
+			throw new InvalidArgumentException(sprintf('length=%d is not valid', $length), FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
+		}
 
 		// Read possibly back-buffered bytes from previous call of next().
 		$data = $this->getBackBuffer();
@@ -715,56 +830,117 @@ abstract class BaseBinaryFile extends BaseAbstractFile {
 		 * "block" may not fit, so this loop will continue until the EOB or EOF
 		 * has been reached whatever comes first.
 		 */
-		while ((!$this->isEndOfFileReached()) && (!self::isBlockSeparatorFound($data))) {
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: this->seekPosition=%d,data()=%d', $this->getSeekPosition(), strlen($data)));
+		while ((!$this->isEndOfFileReached()) && (empty($data) || !self::isBlockSeparatorFound($data))) {
 			// Then read the next possible block
+			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: this->seekPosition=%d, Invoking this->read(%d) ...', $this->getSeekPosition(), $length));
 			$block = $this->read($length);
 
-			// Debug message
-			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d] block()=%d,length=%s', __FUNCTION__, __LINE__, strlen($block), $length));
-
-			// Is it all empty?
-			if (strlen(trim($block)) == 0) {
-				// Mark this block as empty
-				$this->markCurrentBlockAsEmpty(strlen($block));
-
-				// Skip to next block
-				continue;
-			} // END - if
+			// Is the block empty?
+			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: block()=%d,length=%d', strlen($block), $length));
+			if (strlen($block) == 0) {
+				// Read empty block, maybe EOF
+				//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: this->seekPosition=%d, block is empty, maybe EOF reached - BREAK!', $this->getSeekPosition()));
+				break;
+			} elseif (empty(trim($block, chr(0)))) {
+				// Mark it as empty
+				//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: this->seekPosition=%d, Invoking this->markCurrentBlockAsEmpty(%d) ...', $this->getSeekPosition(), $length));
+				$this->markCurrentBlockAsEmpty($length);
+			}
 
 			// At this block then
 			$data .= $block;
 
-			// A debug message
-			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('[%s:%d] data()=%d', __FUNCTION__, __LINE__, strlen($data)));
-		} // END - while
-
-		// EOF reached?
-		if ($this->isEndOfFileReached()) {
-			// Set whole data as current read block
-			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('Calling setCurrentBlock(' . strlen($data) . ') ...');
-			$this->setCurrentBlock($data);
-
-			// Then abort here silently
-			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('EOF reached.');
-			return;
-		} // END - if
+			// Debug message
+			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: this->seekPosition=%d,data()=%d', $this->getSeekPosition(), strlen($data)));
+		}
 
 		/*
 		 * Init back-buffer which is the data that has been found beyond the
 		 * separator.
 		 */
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->initBackBuffer(), clearing this->currentBlock ...');
 		$this->initBackBuffer();
+		$this->setCurrentBlock('');
 
-		// Separate data
-		$dataArray = explode(chr(self::SEPARATOR_ENTRIES), $data);
+		// Is $data empty?
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: data(%d)=%s', strlen($data), $data));
+		if (empty(trim($data, chr(0)))) {
+			// Yes, maybe whole file was ...
+			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: this->seekPosition=%d, maybe empty file found - EXIT!', $this->getSeekPosition()));
+			return;
+		}
 
-		// This array must contain two elements
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('dataArray=' . print_r($dataArray, true));
-		assert(count($dataArray) == 2);
+		// Separate data
+		$dataArray = explode(chr(BinaryFile::SEPARATOR_ENTRIES), $data);
 
-		// Left part is the actual block, right one the back-buffer data
+		// Left part is the actual block, right one the back-buffer data, if found
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: dataArray()=%d', count($dataArray)));
+		//* PRINTR-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: dataArray=%s', print_r($dataArray, true)));
 		$this->setCurrentBlock($dataArray[0]);
-		$this->setBackBuffer($dataArray[1]);
+
+		// Is back buffere data found?
+		if (isset($dataArray[1]) && !empty(trim($dataArray[1], chr(0)))) {
+			// Set back buffer
+			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: Setting this->backBuffer=%s ...', $dataArray[1]));
+			$this->setBackBuffer($dataArray[1]);
+		}
+
+		// Trace message
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
+	}
+
+	/**
+	 * Pre-allocates file (if enabled) with some space for later faster write access.
+	 *
+	 * @param	$type	Type of the file
+	 * @return	void
+	 * @throws	InvalidArgumentException	If a parameter is empty
+	 */
+	protected function preAllocateFileByTypeLength (string $type, int $minimumBlockLength) {
+		// Is it enabled?
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: type=%s,minimumBlockLength=%d - CALLED!', $type, $minimumBlockLength));
+		if (empty($type)) {
+			// Empty type
+			throw new InvalidArgumentException('Parameter "type" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
+		} elseif ($minimumBlockLength < 1) {
+			// Invalid block length
+			throw new InvalidArgumentException(sprintf('Parameter minimumBlockLength=%d is not valid', $minimumBlockLength), FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
+		} elseif (!FrameworkBootstrap::getConfigurationInstance()->isEnabled($type . '_pre_allocate')) {
+			// Don't continue here.
+			self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Not pre-allocating file. - EXIT!');
+			return;
+		}
+
+		// Get file size
+		$fileSize = $this->getFileSize();
+
+		// Calulcate seek position
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: minimumBlockLength=%d,fileSize=%d', $minimumBlockLength, $fileSize));
+		$seekPosition = $this->getHeaderSize() + $minimumBlockLength * FrameworkBootstrap::getConfigurationInstance()->getConfigEntry($type . '_pre_allocate_count') + $fileSize ;
+
+		// Now simply write a NUL there. This will pre-allocate the file.
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Invoking this->writeAtPosition(%d,NUL) ...', $seekPosition));
+		$this->writeAtPosition($seekPosition, chr(0));
+
+		// Is the seek position zero?
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: fileSize=%d', $fileSize));
+		if ($fileSize == 0) {
+			// Mark file as gaps-only
+			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Invoking this->markGapsOnly(%s,%d) ...', $type, $minimumBlockLength));
+			$this->markFileGapsOnly($type, $minimumBlockLength);
+		} else {
+			// Analyze file structure
+			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->analyzeFileStructure() ...');
+			$this->analyzeFileStructure();
+		}
+
+		// Rewind seek position
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->rewind() ...');
+		$this->rewind();
+
+		// Trace message
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
@@ -772,77 +948,62 @@ abstract class BaseBinaryFile extends BaseAbstractFile {
 	 * This method will return true if an emptied (nulled) entry has been found.
 	 *
 	 * @return	$isValid	Whether the next entry is valid
+	 * @throws	InvalidArgumentException	If a parameter is not valid
 	 */
-	public function valid () {
-		// Make sure the block instance is set
-		assert($this->getBlockInstance() instanceof Block);
-
-		// First calculate minimum block length
-		$length = $this->getBlockInstance()->calculateMinimumBlockLength();
-
-		// Short be more than zero!
-		assert($length > 0);
+	protected function isValidByLength (int $length) {
+		// Validate parameter
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: length=%d - CALLED!', $length));
+		if ($length < 1) {
+			// Throw IAE
+			throw new InvalidArgumentException(sprintf('Parameter length=%d is not valid', $length), FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
+		}
 
 		// Get current seek position
-		$seekPosition = $this->key();
+		$seekPosition = $this->determineSeekPosition();
 
 		// Then try to read it
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: seekPosition=%d', $seekPosition));
 		$data = $this->read($length);
 
 		// If some bytes could be read, all is fine
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: data[%s]()=%d', gettype($data), strlen($data)));
 		$isValid = ((is_string($data)) && (strlen($data) > 0));
 
 		// Get header size
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: isValid=%d', intval($isValid)));
 		$headerSize = $this->getHeaderSize();
 
 		// Is the seek position at or beyond the header?
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: seekPosition=%d,headerSize=%d', $seekPosition, $headerSize));
 		if ($seekPosition >= $headerSize) {
 			// Seek back to old position
-			$this->seek($seekPosition);
+			$isValid = ($isValid && $this->seek($seekPosition) === 0);
 		} else {
 			// Seek directly behind the header
-			$this->seek($headerSize);
+			$isValid = ($isValid && $this->seek($headerSize) === 0);
 		}
 
 		// Return result
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: isValid=%d - EXIT!', intval($isValid)));
 		return $isValid;
 	}
 
 	/**
-	 * Gets current seek position ("key").
-	 *
-	 * @return	$key	Current key in iteration
-	 */
-	public function key () {
-		// Call pointer instance
-		return $this->getPointerInstance()->determineSeekPosition();
-	}
-
-	/**
-	 * Reads the file header
+	 * Reads next "block" of bytes into $currentBlock field. THis method loads
+	 * the whole file into memory when the file is just freshly initialized
+	 * (only zeros in it).
 	 *
 	 * @return	void
 	 */
-	public function readFileHeader () {
-		// Make sure the block instance is set
-		assert($this->getBlockInstance() instanceof Block);
-
-		// Call block instance
-		$this->getBlockInstance()->readFileHeader();
-	}
+	protected abstract function readNextBlock ();
 
 	/**
-	 * Flushes the file header
+	 * Reads the file header
 	 *
 	 * @return	void
+	 * @throws	LogicException	If both instances are not set
 	 */
-	public function flushFileHeader () {
-		// Make sure the block instance is set
-		assert($this->getBlockInstance() instanceof Block);
-
-		// Call block instance
-		$this->getBlockInstance()->flushFileHeader();
-	}
+	public abstract function readFileHeader ();
 
 	/**
 	 * Searches for next suitable gap the given length of data can fit in
@@ -850,16 +1011,28 @@ abstract class BaseBinaryFile extends BaseAbstractFile {
 	 *
 	 * @param	$length			Length of raw data
 	 * @return	$seekPosition	Found next gap's seek position
+	 * @throws	InvalidArgumentException	If the parameter is not valid
 	 */
-	public function searchNextGap ($length) {
+	public function searchNextGap (int $length) {
 		// If the file is only gaps, no need to seek
-		if ($this->isFileOnlyGaps()) {
-			// The first empty block is the first one right after the header
-			return ($this->getHeaderSize() + 1);
-		} // END - if
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: length=%d - CALLED!', $length));
+		if ($length <= 0) {
+			// Throw IAE
+			throw new InvalidArgumentException(sprintf('length=%d is not valid', $length), FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
+		} elseif ($this->isFileGapsOnly()) {
+			/*
+			 * The first empty block is the 2nd one right after the header, so
+			 * one byte gap to the header.
+			 */
+			$seekPosition = ($this->getHeaderSize() + 2);
+
+			// Return position
+			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: seekPosition=%d - EXIT!', $seekPosition));
+			return $seekPosition;
+		}
 
 		// @TODO Unfinished
-		$this->partialStub('length=' . $length);
+		DebugMiddleware::getSelfInstance()->partialStub('length=' . $length);
 	}
 
 }