def compute(self, pid):
cert_file = None
key_file = None
cn_url = get_cn_url(self)
mn_url = get_mn_url(self)
if self.hasInputFromPort("authentication"):
auth = self.getInputFromPort("authentication")
cert_file = auth.cert_file
key_file = auth.key_file
self.annotate({"cn_url": cn_url, "mn_url": mn_url})
mn_client = utils.get_d1_mn_client(mn_url=mn_url, cert_file=cert_file,
key_file=key_file)
cn_client = utils.get_d1_cn_client(cn_url=cn_url)
# if it already exists
if utils.get_sysmeta_by_pid(pid, True, cn_client, mn_client):
if not self.forceGetInputFromPort("updateIfExists", False):
raise ModuleError(self, 'Cannot add data: ' \
'identifer "%s" already exists.')
else:
self.update_object(pid, mn_client, cn_client)
self.create_object(pid, mn_client, cn_client)
def compute(self, get_method):
"""compute dumps to object (either science data or metadata)
to a file object, get_method is the unbound method
(e.g. MemberNodeClient.get)"""
pid = self.getInputFromPort("identifier")
cn_url = get_cn_url(self)
mn_url = get_mn_url(self)
cn_client = utils.get_d1_cn_client(cn_url=cn_url)
mn_client = utils.get_d1_mn_client(mn_url=mn_url)
self.annotate({'cn_url': cn_url, 'mn_url': used_mn_url})
output_file = self.interpreter.filePool.create_file()
# FIXME would be nice to know which member node the data was
# downloaded from
res = get_method(pid, mn_client, cn_client, True, output_file.name)
if res is None:
raise ModuleError(self, "Object could not be retrieved")
# do something with identifier.pid and output_file.name
self.setResult("file", output_file)