def compress_tiff_files(list_of_file_paths, destination_directory, delete_source=False):
"""
This method deals with compression of TIFF images. ZipCompression algorithm is used from the PythonMagick
library.
:param list_of_file_paths: ['C:\Users\gpatil\Desktop\image1.tiff', 'C:\Users\gpatilSample\image2.tiff']
:param destination_directory: 'C:\Users\gpatil\Desktop\image1.png'
:param delete_source: If the delete_source param is set to True then the original files will get
erased after they are compressed
:return: returns a dictionary containing the invalid file paths passed to the method (if any) and a result_code
that has the value 0 or 1 based on the success and failure of the operation
"""
result_dictionary = {}
invalid_files_list = []
for paths in list_of_file_paths:
if os.path.exists(paths) is False:
invalid_files_list.append(paths)
continue
image_object = Image(paths)
image_object.compressType(CompressionType.ZipCompression)
file_name = os.path.basename(paths)
print "Compressing Image" + str(file_name) + " to TIFF"
image_object.write(os.path.join(destination_directory, file_name))
print "Compression Complete"
if not invalid_files_list:
result_dictionary.update({"result_code": 0, "invalid_file_paths": "None"})
else:
csv_list_of_invalid_file_paths = ",".join(invalid_files_list)
result_dictionary.update({"result_code": -1, "invalid_file_paths": csv_list_of_invalid_file_paths})
print "Following files at paths could not be compressed"
for files in invalid_files_list:
print files
if delete_source is True:
for files in list_of_file_paths:
if os.path.exists(paths) is False:
invalid_files_list.append(paths)
continue
os.remove(files)
print "Legacy files deleted successfully"
return result_dictionary
