def _fall_back_setStatus(self, job_path, status):
parser = etree.XMLParser(no_network=False)
index_path = os.path.join(job_path, "index.xml")
doc = parse_xml_file(index_path, parser)
root = doc.getroot()
status_node = root.find("./status")
try:
old_message = status_node.find("value")
if old_message is None:
oldStatus = Status(string=str(status_node.find("value").text))
else:
oldStatus = Status(string=str(status_node.find("value").text), message=str(old_message.text))
except AttributeError:
oldStatus = Status(code=-1) # unknown
if oldStatus.isKnown() and oldStatus.isEnded():
# the job is ended we can refactor status in a separate file
root.remove(status_node)
try:
tmp_file = open(os.path.join(job_path, "tmp_index.xml"), "w")
tmp_file.write(etree.tostring(doc, pretty_print=True, encoding="UTF-8"))
tmp_file.close()
os.rename(tmp_file.name, index_path)
except Exception, err:
_log.error("cannot make index.xml : %s" % err)
self.create(job_path, oldStatus)
return None
def _fall_back_getStatus(self, job_path):
parser = etree.XMLParser(no_network=False)
doc = parse_xml_file(os.path.join(job_path, "index.xml"), parser)
root = doc.getroot()
try:
status = root.find("./status/value").text
except AttributeError:
return Status(code=-1) # unknown
try:
message = root.find("./status/message").text
except AttributeError:
message = None
if message:
return Status(string=str(status), message=str(message))
else:
return Status(string=str(status))
File = open(fileName, "r+")
except IOError, err:
if err.errno == errno.ENOENT:
try:
return self._fall_back_setStatus(job_path, status)
except Exception, err:
_log.error("%s : cannot open either index.xml nor mobyle_status.xml: %s" % (job_path, err))
return Status(code=-1)
else:
_log.error("cannot open %s : %s" % (fileName, err))
return Status(code=-1)
self._lock(File, self.WRITE) # try to acquire a lock
# If I do not got a lock a IOError is raised
try:
parser = etree.XMLParser(no_network=False)
doc = parse_xml_file(File, parser)
root = doc.getroot()
except Exception, err:
msg = "error in parsing status %s : %s" % (File.name, err)
_log.error(msg)
_log.debug("%f : %s : setStatus UNLOCK " % (time(), fileName))
fcntl.lockf(File, fcntl.LOCK_UN)
File.close()
raise MobyleError(msg)
#################
old_status = self.getStatus(job_path)
_log.debug("old_status= %s" % old_status)
if old_status.isEnded():
_log.warning(
"%f : %s : try to update job status from %s to %s ( call by %s )"
% (time(), fileName, old_status, status, os.path.basename(sys.argv[0]))
