def json_doc_to_xml(json_obj, lang='en', custom_namespace=None):
"""Converts a Open511 JSON document to XML.
lang: the appropriate language code
Takes a dict deserialized from JSON, returns an lxml Element.
Accepts only the full root-level JSON object from an Open511 response."""
if 'meta' not in json_obj:
raise Exception(
"This function requires a conforming Open511 JSON document with a 'meta' section."
)
json_obj = dict(json_obj)
meta = json_obj.pop('meta')
elem = get_base_open511_element(lang=lang, version=meta.pop('version'))
pagination = json_obj.pop('pagination', None)
json_struct_to_xml(json_obj, elem, custom_namespace=custom_namespace)
if pagination:
elem.append(
json_struct_to_xml(pagination,
'pagination',
custom_namespace=custom_namespace))
json_struct_to_xml(meta, elem)
return elem
def kml_file_to_open511_element(filename):
"""Transform a Montreal KML file, at filename, into an Element
for the top-level <open511> element."""
ds = DataSource(filename)
base_element = get_base_open511_element(lang='fr')
for layer in ds:
for feature in layer:
base_element.append(feature_to_open511_element(feature))
return base_element
def validate_xml(self):
# First, create a full XML doc to validate
doc = get_base_open511_element()
el = self.get_validation_xml() if hasattr(self, 'get_validation_xml') else self.xml_elem
container = etree.Element(pluralize(el.tag))
container.append(el)
doc.append(container)
doc.set('version', settings.OPEN511_DEFAULT_VERSION)
# Then run it through schema
validate(doc)
def main():
logging.basicConfig()
base = get_base_open511_element(lang="fr")
for summary in chain(
get_list_of_chantiers(action="EntraveMajeure"), get_list_of_chantiers(action="EntraveMineure")
):
rdev = get_roadevent_from_summary(summary)
base.append(rdev)
print etree.tostring(base, pretty_print=True)
def validate_single_item(el, version=DEFAULT_VERSION, ignore_missing_urls=False):
doc = get_base_open511_element(version=version)
if ignore_missing_urls:
el = deepcopy(el)
if not el.xpath('link[rel=self]'):
el.append(_make_link('self', '/fake/data'))
if not el.xpath('link[rel=jurisdiction]'):
el.append(_make_link('jurisdiction', 'http://example.com/fake/jurisdiction'))
container = etree.Element(pluralize(el.tag))
container.append(el)
doc.append(container)
return validate(doc)
def get_xml_doc(self, request, result):
base = get_base_open511_element(base=settings.OPEN511_BASE_URL)
if isinstance(result.resource, (list, tuple)):
base.extend(result.resource)
else:
base.append(result.resource)
if getattr(result, 'pagination', None):
base.append(result.pagination_to_xml())
metadata = self.get_response_metadata(request)
base.set('version', metadata['version'])
# base.append(make_link('self', metadata['url']))
# if 'up_url' in metadata:
# base.append(make_link('up', metadata['up_url']))
return base
def main():
logging.basicConfig()
base = get_base_open511_element(lang='fr')
events = E.events()
for summary in chain(
get_list_of_chantiers(action='Chantier.Majeur'),
get_list_of_chantiers(action='Chantier.Mineur')):
rdev = get_roadevent_from_summary(summary)
events.append(rdev)
base.append(events)
print(etree.tostring(base, pretty_print=True).decode('utf8'))
def geotrafic_to_xml(xml_string, db_conn):
"""
Converts a string containing a Geo-Trafic XML document into an lxml Element
containing an open511 document.
"""
xml_string = xml_string.replace('<Events xmlns="GeoTrafic">', '<Events>') # simpler
srcdoc = etree.fromstring(xml_string)
srcevents = srcdoc.xpath('Event')
root = get_base_open511_element(lang='fr', version='v1')
events = etree.Element('events')
root.append(events)
for srcevent in srcevents:
try:
ev = convert_event(srcevent, db_conn)
events.append(ev)
except:
logger.exception("Error processing event %s" % srcevent.findtext('event-sid'))
continue
return root
def geotrafic_to_xml(xml_string, db_conn):
"""
Converts a string containing a Geo-Trafic XML document into an lxml Element
containing an open511 document.
"""
xml_string = xml_string.replace('<Events xmlns="GeoTrafic">',
'<Events>') # simpler
srcdoc = etree.fromstring(xml_string)
srcevents = srcdoc.xpath('Event')
root = get_base_open511_element(lang='fr', version='v1')
events = etree.Element('events')
root.append(events)
for srcevent in srcevents:
try:
ev = convert_event(srcevent, db_conn)
events.append(ev)
except:
logger.exception("Error processing event %s" %
srcevent.findtext('event-sid'))
continue
return root
def main():
logging.basicConfig()
base = get_base_open511_element(lang='fr')
cameras = E.cameras()
base.append(cameras)
english_names = get_english_names()
for camera_info in get_list_of_cameras():
camera = E.camera(
E.id(JURISDICTION_ID + '/' + unicode(camera_info['id'])),
E.name(camera_info['info'])
)
if english_names[camera_info['id']]:
ename = E.name(english_names[camera_info['id']])
ename.set(XML_LANG, 'en')
camera.append(ename)
camera.append(
E.geography(
geom_to_xml_element(
Point(float(camera_info['lng']), float(camera_info['lat']), srid=4326)
)
)
)
try:
camera.append(
E.media_files(
E.link(rel="related", href=get_image_url(camera_info['id']), type="image/jpeg")
)
)
except Exception as e:
logger.exception("Couldn't fetch image for camera #%s" % camera_info['id'])
continue
cameras.append(camera)
print etree.tostring(base, pretty_print=True)
def json_doc_to_xml(json_obj, lang='en', custom_namespace=None):
"""Converts a Open511 JSON document to XML.
lang: the appropriate language code
Takes a dict deserialized from JSON, returns an lxml Element.
Accepts only the full root-level JSON object from an Open511 response."""
if 'meta' not in json_obj:
raise Exception("This function requires a conforming Open511 JSON document with a 'meta' section.")
json_obj = dict(json_obj)
meta = json_obj.pop('meta')
elem = get_base_open511_element(lang=lang, version=meta.pop('version'))
pagination = json_obj.pop('pagination', None)
json_struct_to_xml(json_obj, elem, custom_namespace=custom_namespace)
if pagination:
elem.append(json_struct_to_xml(pagination, 'pagination', custom_namespace=custom_namespace))
json_struct_to_xml(meta, elem)
return elem
