def read(xml_string):
""" Read Oozie XML workflow definition
Args:
xml_string (string): Oozie XML
Returns:
OozieGraph
"""
root = ET.fromstring(__remove_namespaces(xml_string))
ignore_tags = ['global']
independently_handled_tags = ['parameters']
handlers_register = {
'fork': handle_fork,
'decision': handle_decision,
'action': handle_action,
'join': handle_join,
'start': handle_start,
'end': handle_end,
'kill': handle_kill
}
nodes_register = {}
parameters = {}
for child in root:
tag_name = child.tag
if tag_name not in (list(handlers_register.keys()) +
independently_handled_tags + ignore_tags):
raise Exception('tag "{}" encountered which is neither '
'ignored nor handled'.format(tag_name))
if tag_name in ignore_tags:
pass
elif tag_name in independently_handled_tags:
if tag_name == 'parameters':
parameters = properties_to_dict(child)
else:
try:
(name, node) = handlers_register[tag_name](child)
nodes_register[name] = node
except Exception:
tag_string = ET.tostring(child, encoding='utf8', method='xml')
print('Error occurred while analyzing tag "{}"'.format(
tag_string),
file=sys.stderr)
raise
return OozieGraph(parameters, nodes_register)
def read(xml_string):
""" Read Oozie XML workflow definition
Args:
xml_string (string): Oozie XML
Returns:
OozieGraph
"""
root = ET.fromstring(__remove_namespaces(xml_string))
ignore_tags = ['global']
independently_handled_tags = ['parameters']
handlers_register = {'fork': handle_fork,
'decision': handle_decision,
'action': handle_action,
'join': handle_join,
'start': handle_start,
'end': handle_end,
'kill': handle_kill}
nodes_register = {}
parameters = {}
for child in root:
tag_name = child.tag
if tag_name not in (list(handlers_register.keys()) +
independently_handled_tags + ignore_tags):
raise Exception('tag "{}" encountered which is neither '
'ignored nor handled'.format(tag_name))
if tag_name in ignore_tags:
pass
elif tag_name in independently_handled_tags:
if tag_name == 'parameters':
parameters = properties_to_dict(child)
else:
try:
(name, node) = handlers_register[tag_name](child)
nodes_register[name] = node
except Exception:
tag_string = ET.tostring(child, encoding='utf8', method='xml')
print('Error occurred while analyzing tag "{}"'.
format(tag_string), file=sys.stderr)
raise
return OozieGraph(parameters, nodes_register)
def __get_configuration(action_elem):
configuration = {}
configuration_elem = action_elem.find('configuration')
if configuration_elem is not None:
configuration = properties_to_dict(configuration_elem)
return configuration
