+
+ /**
+ * Streams the data and maybe does something to it
+ *
+ * @param $data The data (string mostly) to "stream"
+ * @return $data The data (string mostly) to "stream"
+ * @throws UnsupportedOperationException If this method is called
+ */
+ public function streamData ($data) {
+ self::createDebugInstance(__CLASS__)->debugOutput('Unhandled ' . strlen($data) . ' bytes in this stream.');
+ throw new UnsupportedOperationException(array($this, __FUNCTION__), self::EXCEPTION_UNSPPORTED_OPERATION);
+ }
+
+ /**
+ * Determines seek position
+ *
+ * @return $seekPosition Current seek position
+ * @throws UnsupportedOperationException If this method is called
+ */
+ public function determineSeekPosition () {
+ throw new UnsupportedOperationException(array($this, __FUNCTION__), self::EXCEPTION_UNSPPORTED_OPERATION);
+ }
+
+ /**
+ * Seek to given offset (default) or other possibilities as fseek() gives.
+ *
+ * @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 $status Status of file seek: 0 = success, -1 = failed
+ * @throws UnsupportedOperationException If this method is called
+ */
+ public function seek ($offset, $whence = SEEK_SET) {
+ self::createDebugInstance(__CLASS__)->debugOutput('[' . __METHOD__ . ':' . __LINE__ . '] offset=' . $offset . ',whence=' . $whence);
+ throw new UnsupportedOperationException(array($this, __FUNCTION__), self::EXCEPTION_UNSPPORTED_OPERATION);
+ }
+
+ /**
+ * Size of file stack
+ *
+ * @return $size Size (in bytes) of file
+ * @throws UnsupportedOperationException If this method is called
+ */
+ public function size () {
+ throw new UnsupportedOperationException(array($this, __FUNCTION__), self::EXCEPTION_UNSPPORTED_OPERATION);
+ }