def parse_replicas_from_string(string):
"""
Parses the output of list_replicas from a json or metalink string
into a dictionary. Metalink parsing is tried first and if it fails
it tries to parse json.
:param string: the string to parse
:returns: a list with a dictionary for each file
"""
try:
root = ElementTree.fromstring(string)
return parse_replicas_metalink(root)
except ElementTree.ParseError as xml_err:
try:
return json.loads(string)
except ValueError as json_err:
raise MetalinkJsonParsingError(string, xml_err, json_err)
def parse_replicas_from_file(path):
"""
Parses the output of list_replicas from a json or metalink file
into a dictionary. Metalink parsing is tried first and if it fails
it tries to parse json.
:param path: the path to the input file
:returns: a list with a dictionary for each file
"""
with open(path) as fp:
try:
root = ElementTree.parse(fp).getroot()
return parse_replicas_metalink(root)
except ElementTree.ParseError as xml_err:
try:
return json.load(fp)
except ValueError as json_err:
raise MetalinkJsonParsingError(path, xml_err, json_err)