def get_element_processor(element, send_cache, verbose, dryrun):
"""Gets an instance of element that contains cached data, depending on
arguments passed.
Will skip any cached data if send_cache is False or dryrun is True.
@param element: Element class that should be fetched.
@type element: L{MetaElement} sub class.
@param send_cache: Indicates whether cache should be included.
@type send_cache: bool
@param verbose: Indicates whether or not the script runs in verbose mode.
@type verbose: bool
@param dryrun: Indicates whether the script is doing a dry run.
@type dryrun: bool
@return: L{MetaElement} sub class. The sub class is given by the element
parameter.
"""
if dryrun or not send_cache:
return element()
if send_cache:
c = Cacher(element.xml_tag_name)
cached_data = c.get_cache()
if cached_data is not None:
if element.resend_cache:
element_processor = element.from_xml_element(cached_data,
element)
else:
logging.info(("Found cached data for \"%s\", but element "
"type declares not to resend this cache. "
"Removing cache.") % element.xml_tag_name)
c.remove_cache()
element_processor = element()
if element_processor is None:
logging.error(("Found cached data for \"%s\", but unable to "
"load. Check file \"%s\" for possible errors. "
"Continuing without cached data") %
(element.xml_tag_name, c.file_path))
element_processor = element()
else:
# We have successfully loaded the cached data.
if element.resend_cache:
logging.debug(("Succesfully loaded cache for \"%s\", "
"removing cached file \"%s\".") %
(element.xml_tag_name, c.file_path))
c.remove_cache()
else:
logging.debug(("Found no cached data for \"%s\".") %
element.xml_tag_name)
element_processor = element()
return element_processor
if event_type == "resourceDown":
if reason is None:
print "Recieved resource down handle, but missing reason."
print __doc__
sys.exit(2)
if share_down is None:
print "Recieved resource down handle, but missing share down."
print __doc__
sys.exit(2)
if date_down is None:
print "Recieved resource down handle, but missing date down."
# We have everything we require to create an event.
# Attempt to find already cached data:
m = MetaDoc(site_name)
c = Cacher("events")
cached_data = c.get_cache()
if cached_data is not None:
processor = Events.from_xml_element(cached_data, Events)
if processor is None:
print "Found previous event cache, but could not load. Please check "
print "\"%s\" for errors. " % c.file_path
print "Halting."
sys.exit(2)
else:
c.remove_cache()
else:
processor = Events()
if event_type == "resourceUp":
e = ResourceUpEntry(date_up, reason, remarks)
else:
e = ResourceDownEntry(reason, date_down, date_up, share_down, remarks)
