def _load_manifest(self):
path = self.get_agent_manifest_path()
if not os.path.isfile(path):
msg = u"Agent {0} is missing the {1} file".format(self.name, AGENT_MANIFEST_FILE)
raise UpdateError(msg)
with open(path, "r") as manifest_file:
try:
manifests = json.load(manifest_file)
except Exception as e:
msg = u"Agent {0} has a malformed {1}".format(self.name, AGENT_MANIFEST_FILE)
raise UpdateError(msg)
if type(manifests) is list:
if len(manifests) <= 0:
msg = u"Agent {0} has an empty {1}".format(self.name, AGENT_MANIFEST_FILE)
raise UpdateError(msg)
manifest = manifests[0]
else:
manifest = manifests
try:
self.manifest = HandlerManifest(manifest)
if len(self.manifest.get_enable_command()) <= 0:
raise Exception(u"Manifest is missing the enable command")
except Exception as e:
msg = u"Agent {0} has an illegal {1}: {2}".format(
self.name,
AGENT_MANIFEST_FILE,
ustr(e))
raise UpdateError(msg)
logger.info(
u"Agent {0} loaded manifest from {1}",
self.name,
self.get_agent_manifest_path())
logger.verbose(u"Successfully loaded Agent {0} {1}: {2}",
self.name,
AGENT_MANIFEST_FILE,
ustr(self.manifest.data))
return
