ganeti.ovf.Converter

class documentation

class Converter(object):

Converter class for OVF packages.

Converter is a class above both ImporterOVF and ExporterOVF. It's purpose is to provide a common interface for the two.

Method	`__init__`	Initialize the converter.
Method	`Cleanup`	Cleans the temporary directory, if one was created.
Method	`Parse`	Parses the data and creates a structure containing all required info.
Method	`Save`	Saves the gathered configuration in an apropriate format.
Instance Variable	`options`	options parsed from the command line
Instance Variable	`output_dir`	directory to which the results of conversion shall be written
Instance Variable	`temp_dir`	temporary directory created then we deal with OVA
Instance Variable	`temp_file_manager`	container for temporary files created during conversion
Static Method	`_GetDiskQemuInfo`	Figures out some information of the disk using qemu-img.
Method	`_CompressDisk`	Performs (de)compression on the disk and returns the new path
Method	`_ConvertDisk`	Performes conversion to specified format.
Method	`_ReadInputData`	Reads the data on which the conversion will take place.

def __init__(self, input_path, options): ¶

Initialize the converter.

Parameters
input_path:string	path to the Converter input file
options:optparse.Values	command line options
Raises
`errors.OpPrereqError`	if file does not exist

def Cleanup(self): ¶

Cleans the temporary directory, if one was created.

def Parse(self): ¶

overridden in ganeti.ovf.OVFExporter, ganeti.ovf.OVFImporter

Parses the data and creates a structure containing all required info.

def Save(self): ¶

overridden in ganeti.ovf.OVFExporter, ganeti.ovf.OVFImporter

Saves the gathered configuration in an apropriate format.

options: optparse.Values = ¶

options parsed from the command line

output_dir: string = ¶

overridden in ganeti.ovf.OVFExporter, ganeti.ovf.OVFImporter

directory to which the results of conversion shall be written

temp_dir: string = ¶

overridden in ganeti.ovf.OVFExporter, ganeti.ovf.OVFImporter

temporary directory created then we deal with OVA

temp_file_manager: utils.TemporaryFileManager = ¶

container for temporary files created during conversion

@staticmethod
def _GetDiskQemuInfo(disk_path, regexp): ¶

Figures out some information of the disk using qemu-img.

Parameters
disk_path:string	path to the disk we want to know the format of
regexp:string	string that has to be matched, it has to contain one group
Returns
string	disk format
Raises
`errors.OpPrereqError`	format information cannot be retrieved

def _CompressDisk(self, disk_path, compression, action): ¶

Performs (de)compression on the disk and returns the new path

Parameters
disk_path:string	path to the disk
compression:string	compression type
action:string	whether the action is compression or decompression
Returns
string	new disk path after (de)compression
Raises
`errors.OpPrereqError`	disk (de)compression failed or "compression" is not supported

def _ConvertDisk(self, disk_format, disk_path): ¶

Performes conversion to specified format.

Parameters
disk_format:string	format to which the disk should be converted
disk_path:string	path to the disk that should be converted
Returns
string @return path to the output disk	Undocumented
Raises
`errors.OpPrereqError`	convertion of the disk failed

def _ReadInputData(self, input_path): ¶

overridden in ganeti.ovf.OVFExporter, ganeti.ovf.OVFImporter

Reads the data on which the conversion will take place.

Parameters
input_path:string	absolute path to the Converter input file