def initialize(self):
"""
Initialize the WorkflowStep class.
By creating the source data URI, and
parsing the step templates.
Args:
self: class instance.
Returns:
On success: True.
On failure: False.
"""
# parse data uris in StageableData class
if not StageableData.initialize(self):
msg = 'cannot initialize data staging'
Log.an().error(msg)
return self._fatal(msg)
# create data uri in the source context
if not self._init_data_uri():
msg = 'cannot create data uris'
Log.an().error(msg)
return self._fatal(msg)
# make sure URIs for dependent steps match step dict
# and app context
if not self._validate_depend_uris():
msg = 'validation failed for dependent step uris'
Log.an().error(msg)
return self._fatal(msg)
# build template replacement list
if not self._build_replace():
msg = 'cannot build replacement strings for templates'
Log.an().error(msg)
return self._fatal(msg)
# parse map uri
if not self._parse_map_uri():
msg = 'cannot parse map uri'
Log.an().error(msg)
return self._fatal(msg)
return True
def initialize(self):
"""
Initialize the WorkflowInput class.
Initialize the base classes and checking for the
existence of the source data URI.
Args:
self: class instance.
Returns:
On success: True.
On failure: False.
"""
# parse data URIs in StageableData class
if not StageableData.initialize(self):
msg = 'cannot initialize data staging'
Log.an().error(msg)
return False
return True