def add_prefix(self, filename, prefix):
'''
*:func:`Transform_Filename.add_prefix`*
The :func:`Transform_Filename.add_prefix` method prepends the supplied
prefix to the supplied filename.
*Usage Notes:*
None
*Example usage:*
```obj = Transform_Filename()```
```obj.add_prefix(filename, prefix)```
:param: filename: Name of file to process
:param: prefix: Prefix to add to the file name
:returns: The renamed file or raises an Exception
+------------+-------------+-------------------------------------------+
| Date | Author | Change Details |
+============+=============+===========================================+
| 02/07/2013 | Chris Falck | Ported from Perl Version (FalckMon) |
+------------+-------------+-------------------------------------------+
'''
self.filename = filename
self.prefix = prefix
logger.info('Add Prefix %s to file %s', self.prefix, self.filename)
# Validate input - Check from_name exists
if os.path.isfile(self.filename) is False:
logger.error('OSError No such file or directory: %s',
self.filename)
raise OSError(2, 'No such file or directory', self.filename)
head, tail = os.path.split(self.filename)
new_fn = head + os.sep + self.prefix + tail
logger.info('renaming file from %s to %s', self.filename, new_fn)
try:
rename_obj = renameFile.Copy_File(self.xfero_token)
renamed_file = rename_obj.rename_file(self.filename, new_fn)
except OSError as err:
logger.error('Error Renaming file from %s to %s', self.filename,
new_fn)
raise err
return renamed_file
def to_lower(self, filename):
'''
*:func:`Case_Converter.to_lower`*
The :func:`Case_Converter.to_lower` method will convert the supplied
filename to lower case.
e.g. the filename ```'FILENAME.TXT'``` would be converted to
```'filename.txt'```
**Usage Notes:**
None
*Example usage:*
```obj = Case_Converter()```
```obj.to_lower(filename)```
:param filename: Name of file to process
:returns: The renamed file or raises an Exception
'''
self.filename = filename
logger.info('Convert to %s to lower case. (XFERO_Token=%s)',
self.filename, self.xfero_token)
# Validate input - Check from_name exists
if os.path.isfile(self.filename) is False:
logger.error('OSError No such file or directory: %s. \
(XFERO_Token=%s)', self.filename, self.xfero_token)
raise OSError(2, 'No such file or directory %s', self.filename)
head, tail = os.path.split(self.filename)
new_fn = head + os.sep + tail.lower()
logger.info('Renaming file from %s to %s. (XFERO_Token=%s)',
self.filename, new_fn, self.xfero_token)
try:
rename_obj = renameFile.Copy_File(self.xfero_token)
renamed_file = rename_obj.rename_file(self.filename, new_fn)
except Exception as err:
logger.error('Error Renaming file from %s to %s. \
(XFERO_Token=%s)', self.filename, new_fn, self.xfero_token)
raise err
return renamed_file
def add_extension(self, filename, extension):
'''
*:func:`Transform_Filename.add_extension`*
The :func:`Transform_Filename.add_extension` method inserts the
supplied file extension to the filename.
e.g. .txt or .csv or .fredbloggs
**Usage Notes:**
None
*Example usage:*
```obj = Transform_Filename()```
```obj.add_extension(filename, extension)```
:param: filename: Name of file to process
:param: extension: Extension to add to the file name
:returns: The renamed file or raises an Exception
'''
self.filename = filename
self.extension = extension
logger.info('Add extension %s to file %s', self.extension,
self.filename)
# Validate input - Check from_name exists
if os.path.isfile(self.filename) is False:
logger.error('OSError No such file or directory: %s', self.filename)
raise OSError(2, 'No such file or directory', self.filename)
logger.info('renaming file from %s to %s', self.filename,
(self.filename + self.extension))
try:
rename_obj = renameFile.Copy_File(self.xfero_token)
renamed_file = rename_obj.rename_file(
self.filename, self.filename + self.extension)
except Exception as err:
logger.error('Error Renaming file from %s to %s',
self.filename, self.filename + self.extension)
raise err
return renamed_file
def delete_extension(self, file_name):
'''
*:func:`Transform_Filename.delete_extension`*
The :func:`Transform_Filename.delete_extension` method searches for the
final '.' and removes it and any trailing characters, effectively
removing any filename extension.
e.g. .txt or .csv or .fredbloggs
**Usage Notes:**
None
*Example usage:*
```obj = Transform_Filename()```
```obj.delete_extension(filename))```
:param file_name: Name of file to process
:returns: The renamed file or raises an Exception
'''
self.filename = file_name
logger.info('Delete extension from %s', self.filename)
# Validate input - Check from_name exists
if os.path.isfile(self.filename) is False:
logger.error('OSError No such file or directory: %s',
self.filename)
raise OSError(2, 'No such file or directory', self.filename)
filename, fileextension = os.path.splitext(self.filename)
logger.info('Renaming file from %s to %s', self.filename, filename)
try:
rename_obj = renameFile.Copy_File(self.xfero_token)
renamed_file = rename_obj.rename_file(self.filename, filename)
except OSError as err:
logger.error('Error Renaming file from %s to %s',
self.filename, filename)
raise err
return renamed_file
def insert_name_part(self, filename, eyecatcher, insert_element, where):
'''
*:func:`Transform_Filename.insert_name_part`*
The :func:`Transform_Filename.insert_name_part` method Find the first
occurrence of the eyecatcher supplied and inserts the supplied text
element into the filename either before or after the eyecatcher.
*Usage Notes:*
None
*Example usage:*
```obj = Transform_Filename()```
```obj.insert_name_part(filename, name_element)```
:param: filename: Name of file to process
:param: eyecatcher: The eyecatcher that helps identify where text is to
be inserted into the filename.
:param: insert_element: The element which is to be inserted into the
filename.
:param: where: Ths parameter determines where the element to be inserted
is to be placed. Either before or after the eyecatcher.
:returns: renamed file
+------------+-------------+-------------------------------------------+
| Date | Author | Change Details |
+============+=============+===========================================+
| 02/07/2013 | Chris Falck | Ported from Perl Version (FalckMon) |
+------------+-------------+-------------------------------------------+
'''
self.filename = filename
self.eyecatcher = eyecatcher
self.insert_element = insert_element
self.where = where
logger.info('Insert filename elements into %s', self.filename)
# Validate input - Check filename exists
if os.path.isfile(self.filename) is False:
logger.error('OSError No such file or directory: %s', self.filename)
raise OSError(2, 'No such file or directory', self.filename)
head, tail = os.path.split(self.filename)
# index holds the starting index of the eyecatcher
index = tail.find(self.eyecatcher)
if index == -1:
logger.error('TypeError: Request to insert name element into file \
%s, but invalid eyecatcher %s suplied', self.filename,
self.eyecatcher)
raise TypeError("Eye-catcher invalid: %s" % self.eyecatcher)
if where.capitalize() == 'Before':
part1 = tail[0:index]
part2 = tail[index:len(self.filename)]
elif where.capitalize() == 'After':
new_index = index + len(eyecatcher)
part1 = tail[0:new_index]
part2 = tail[new_index:len(self.filename)]
else:
logger.error(
'TypeError: Invalid Position supplied. \
Should be Before or After')
raise TypeError(
'Invalid Position supplied. \
Should be Before or After')
new_fn = head + os.sep + part1 + insert_element + part2
logger.info('Rename file from %s to %s', self.filename, new_fn)
try:
rename_obj = renameFile.Copy_File(self.xfero_token)
renamed_file = rename_obj.rename_file(self.filename, new_fn)
except OSError as err:
# raise err
logger.error('Error Renaming file from %s to %s',
self.filename, new_fn)
raise err
return renamed_file
def remove_name_part(self, filename, name_element):
'''
*:func:`Transform_Filename.remove_name_part`*
The :func:`Transform_Filename.remove_name_part` method Find the first
occurrence of the name_element supplied and remove it from the filename.
*Usage Notes:*
None
*Example usage:*
```obj = Transform_Filename()```
```obj.remove_name_part(filename, name_element)```
:param: filename: Name of file to process
:param: name_element: Element to be removed from the file name.
+------------+-------------+-------------------------------------------+
| Date | Author | Change Details |
+============+=============+===========================================+
| 02/07/2013 | Chris Falck | Ported from Perl Version (FalckMon) |
+------------+-------------+-------------------------------------------+
'''
self.filename = filename
self.name_element = name_element
logger.info('Remove filename element %s from file %s',
self.name_element, self.filename)
# Validate input - Check filename exists
if os.path.isfile(self.filename) is False:
logger.error('OSError No such file or directory: %s',
self.filename)
raise OSError(2, 'No such file or directory', self.filename)
head, tail = os.path.split(self.filename)
# index holds the starting index of the name_element
index = tail.find(self.name_element)
if index == -1:
logger.error('TypeError: Request to remove name element from file \
%s, but invalid self.name_element %s supplied',
self.filename, self.name_element)
raise TypeError(1, 'Invalid name_element: %s' % self.name_element)
part1 = tail[0:index]
part2 = tail[index + len(self.name_element): len(tail)]
new_fn = head + os.sep + part1 + part2
logger.info('Rename file from %s to %s', self.filename, new_fn)
try:
rename_obj = renameFile.Copy_File(self.xfero_token)
renamed_file = rename_obj.rename_file(self.filename, new_fn)
except Exception as err:
# raise err
logger.error('Error Renaming file from %s to %s',
self.filename, new_fn)
raise err
return renamed_file
