*/
const STACK_MAGIC = 'STACKv0.1';
- /**
- * Separator for header data
- */
- const SEPARATOR_HEADER_DATA = 0x01;
-
- /**
- * Separator header->entries
- */
- const SEPARATOR_HEADER_ENTRIES = 0x02;
-
- /**
- * Separator hash->name
- */
- const SEPARATOR_HASH_NAME = 0x03;
-
- /**
- * Length of name
- */
- const LENGTH_NAME = 10;
-
/**
* Protected constructor
*
*
* @return void
*/
- private function flushFileHeader () {
+ protected function flushFileHeader () {
//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] CALLED!', __METHOD__, __LINE__));
// Put all informations together
);
// Write it to disk (header is always at seek position 0)
- $this->writeData(0, $header);
+ $this->writeData(0, $header, FALSE);
//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] EXIT!', __METHOD__, __LINE__));
}
// Output message (as this may take some time)
self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] Analyzing file structure ... (this may take some time)', __METHOD__, __LINE__));
+ // First rewind to the begining
+ $this->getIteratorInstance()->rewind();
+
+ // Then try to load all entries
+ while ($this->getIteratorInstance()->valid()) {
+ // Go to next entry
+ $this->getIteratorInstance()->next();
+
+ // Get current entry
+ $current = $this->getIteratorInstance()->current();
+
+ // Simply output it
+ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] current(%s)=%s', __METHOD__, __LINE__, strlen($current), print_r($current, TRUE)));
+ } // END - while
+
//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] EXIT!', __METHOD__, __LINE__));
}
* @param $fileName File name of this stack
* @param $type Type of this stack (e.g. url_source for URL sources)
* @return void
+ * @todo Currently the stack file is not cached, please implement a memory-handling class and if enough RAM is found, cache the whole stack file.
*/
protected function initFileStack ($fileName, $type) {
- // Get a file i/o pointer instance for stack file
- $pointerInstance = ObjectFactory::createObjectByConfiguredName('file_raw_input_output_class', array($fileName));
+ // Get a stack file instance
+ $fileInstance = ObjectFactory::createObjectByConfiguredName('stack_file_class', array($fileName));
// Get iterator instance
- $iteratorInstance = ObjectFactory::createObjectByConfiguredName('file_io_iterator_class', array($pointerInstance));
+ $iteratorInstance = ObjectFactory::createObjectByConfiguredName('file_io_iterator_class', array($fileInstance, $this));
// Is the instance implementing the right interface?
assert($iteratorInstance instanceof SeekableWritableFileIterator);
// Now, simply return the found count value, this must be up-to-date then!
return $this->getCounter();
}
+
+ /**
+ * Calculates minimum length for one entry/block
+ *
+ * @return $length Minimum length for one entry/block
+ */
+ public function caluclateMinimumBlockLength () {
+ // Calulcate it
+ $length = self::getHashLength() + strlen(chr(self::SEPARATOR_HASH_NAME)) + self::LENGTH_NAME + 1 + strlen(self::getBlockSeparator());
+
+ // Return it
+ return $length;
+ }
}
// [EOF]