def fake_gcn(notice_type):
# Check the real GCN notice, which is valid.
payload = resources.read_binary(data, 'G298048-1-Initial.xml')
root = lxml.etree.fromstring(payload)
notice_type = str(int(notice_type))
root.find(".//Param[@name='Packet_Type']").attrib['value'] = notice_type
return xml_document(root)
def send(self, message):
"""Send a VOEvent to GCN.
This task will be retried several times if the VOEvent cannot be sent. See
the Raises section below for circumstances that cause a retry.
Parameters
----------
message : bytes
The raw VOEvent file contents.
Raises
------
SendingError
If the VOEvent could not be sent because there were no network peers
connected to the VOEvent broadcaster.
"""
broadcasters = self.app.conf['voevent_broadcaster_factory'].broadcasters
if broadcasters:
event = xml_document(message)
for broadcaster in broadcasters:
reactor.callFromThread(broadcaster.send_event, event)
elif self.app.conf['voevent_broadcaster_whitelist']:
raise SendingError('Not sending the event because there are no '
'subscribers connected to the GCN broker.')
def broker_test_message(ivo):
"""
Test message which is regularly broadcast to all subscribers.
"""
root_element = ElementTree.Element("{http://www.ivoa.net/xml/VOEvent/v2.0}VOEvent",
attrib={
"ivorn": ivo + "#TestEvent-%s" % datetime.utcnow().strftime("%Y-%m-%dT%H:%M:%S"),
"role": "test",
"version": "2.0",
"{http://www.w3.org/2001/XMLSchema-instance}schemaLocation": "http://www.ivoa.net/xml/VOEvent/v2.0 http://www.ivoa.net/xml/VOEvent/VOEvent-v2.0.xsd"
}
)
who = ElementTree.SubElement(root_element, "Who")
author_ivorn = ElementTree.SubElement(who, "AuthorIVORN")
author_ivorn.text = ivo
date = ElementTree.SubElement(who, "Date")
date.text = datetime.utcnow().strftime("%Y-%m-%dT%H:%M:%S.%f")
what = ElementTree.SubElement(root_element, "What")
description = ElementTree.SubElement(what, "Description")
description.text = "Broker test event generated by Comet %s." % (__version__,)
ElementTree.SubElement(what, "Reference", uri=__url__)
return xml_document(root_element)
def broker_test_message(ivo):
"""
Test message which is regularly broadcast to all subscribers.
"""
root_element = ElementTree.Element("{http://www.ivoa.net/xml/VOEvent/v2.0}VOEvent",
attrib={
"ivorn": ivo + "#TestEvent-%s" % datetime.utcnow().strftime("%Y-%m-%dT%H:%M:%SZ"),
"role": "test",
"version": "2.0",
"{http://www.w3.org/2001/XMLSchema-instance}schemaLocation": "http://www.ivoa.net/xml/VOEvent/v2.0 http://www.ivoa.net/xml/VOEvent/VOEvent-v2.0.xsd"
}
)
who = ElementTree.SubElement(root_element, "Who")
author_ivoid = ElementTree.SubElement(who, "AuthorIVORN")
author_ivoid.text = ivo
date = ElementTree.SubElement(who, "Date")
date.text = datetime.utcnow().strftime("%Y-%m-%dT%H:%M:%SZ")
what = ElementTree.SubElement(root_element, "What")
description = ElementTree.SubElement(what, "Description")
description.text = "Broker test event generated by Comet %s." % (__version__,)
ElementTree.SubElement(what, "Reference", uri=__url__)
return xml_document(root_element)