Continued:

[core.git] / inc / classes / main / file_directories / binary / stack / class_StackFile.php

diff --git a/inc/classes/main/file_directories/binary/stack/class_StackFile.php b/inc/classes/main/file_directories/binary/stack/class_StackFile.php
index 95eb82a72c0b82c2f9fd7650b784dfb56f3d0dbd..cf562b8766b4cae87952bf597056692508c9c744 100644 (file)
--- a/inc/classes/main/file_directories/binary/stack/class_StackFile.php
+++ b/inc/classes/main/file_directories/binary/stack/class_StackFile.php
@@ -52,6 +52,45 @@ class StackFile extends BaseBinaryFile implements Block {
                // Return the prepared instance
                return $fileInstance;
        }
                // Return the prepared instance
                return $fileInstance;
        }

+
+       /**
+        * Writes given value to the file and returns a hash and gap position for it
+        *
+        * @param       $groupId        Group identifier
+        * @param       $value          Value to be added to the stack
+        * @return      $data           Hash and gap position
+        */
+       public function writeValueToFile ($groupId, $value) {
+               // Make sure no objects/resources are added as the serialization may fail
+               assert(!is_object($value));
+               assert(!is_resource($value));
+
+               // Encode/convert the value into a "binary format"
+               $encoded = $this->encodeData($value);
+
+               // Get a strong hash for the "encoded" data
+               $hash = self::hash($encoded);
+
+               // Then write it to the next free gap
+               $data = $this->getBlockInstance()->writeDataToFreeGap($groupId, $hash, $encoded);
+
+               // Return info
+               return $data;
+       }
+
+       /**
+        * Writes given raw data to the file and returns a gap position and length
+        *
+        * @param       $groupId        Group identifier
+        * @param       $hash           Hash from encoded value
+        * @param       $encoded        Encoded value to be written to the file
+        * @return      $data           Gap position and length of the raw data
+        * @throws      UnsupportedOperationException   If this method is called
+        */
+       public function writeDataToFreeGap ($groupId, $hash, $encoded) {
+               self::createDebugInstance(__CLASS__)->debugOutput('[' . __METHOD__ . ':' . __LINE__ . '] groupId=' . $groupId . ',hash=' . $hash . ',encoded()=' . strlen($encoded));
+               throw new UnsupportedOperationException(array($this, __FUNCTION__), self::EXCEPTION_UNSPPORTED_OPERATION);
+       }

 }
 
 // [EOF]
 }
 
 // [EOF]