"""The Virtual File System (VFS) data stream interface."""
[docs]
class DataStream:
"""Data stream interface."""
[docs]
def __init__(self, file_entry):
"""Initializes the data stream.
Args:
file_entry (FileEntry): file entry.
"""
super().__init__()
self._file_entry = file_entry
self._name = ""
self._size = 0
@property
def name(self):
"""str: name."""
return self._name
@property
def size(self):
"""int: size."""
return self._size
[docs]
def GetExtents(self):
"""Retrieves the extents.
Returns:
list[Extent]: the extents of the data stream.
"""
if self._file_entry:
return self._file_entry.GetExtents()
return []
[docs]
def IsDefault(self):
"""Determines if the data stream is the default data stream.
Returns:
bool: True if the data stream is the default data stream.
"""
return not bool(self._name)