def write_iso19115_metadata(layer_uri, keywords):
"""Create metadata object from a layer path and keywords dictionary.
:param layer_uri: Uri to layer.
:type layer_uri: str
:param keywords: Dictionary of keywords.
:type keywords: dict
"""
if 'layer_purpose' in keywords.keys():
if keywords['layer_purpose'] == 'exposure':
metadata = ExposureLayerMetadata(layer_uri)
elif keywords['layer_purpose'] == 'hazard':
metadata = HazardLayerMetadata(layer_uri)
elif keywords['layer_purpose'] == 'aggregation':
metadata = AggregationLayerMetadata(layer_uri)
elif keywords['layer_purpose'] == 'impact':
metadata = ImpactLayerMetadata(layer_uri)
else:
metadata = GenericLayerMetadata(layer_uri)
else:
metadata = GenericLayerMetadata(layer_uri)
metadata.update_from_dict(keywords)
# Always set keyword_version to the latest one.
metadata.update_from_dict({'keyword_version': inasafe_keyword_version})
if metadata.layer_is_file_based:
xml_file_path = os.path.splitext(layer_uri)[0] + '.xml'
metadata.write_to_file(xml_file_path)
else:
metadata.write_to_db()
return metadata
def test_standard_properties(self):
metadata = HazardLayerMetadata(unique_filename())
with self.assertRaises(KeyError):
metadata.get_property('non_existing_key')
# from BaseMetadata
metadata.get_property('email')
# from HazardLayerMetadata
metadata.get_property('hazard')
metadata.get_property('hazard_category')
metadata.get_property('continuous_hazard_unit')
metadata.get_property('thresholds')
metadata.get_property('value_maps')
def test_standard_properties(self):
metadata = HazardLayerMetadata(unique_filename())
with self.assertRaises(KeyError):
metadata.get_property('non_existing_key')
# from BaseMetadata
metadata.get_property('email')
# from HazardLayerMetadata
metadata.get_property('hazard')
metadata.get_property('hazard_category')
metadata.get_property('continuous_hazard_unit')
metadata.get_property('thresholds')
metadata.get_property('value_maps')
def test_standard_properties(self):
metadata = HazardLayerMetadata(unique_filename())
with self.assertRaises(KeyError):
metadata.get_property('non_existing_key')
# from BaseMetadata
metadata.get_property('email')
# from HazardLayerMetadata
metadata.get_property('hazard')
metadata.get_property('hazard_category')
metadata.get_property('continuous_hazard_unit')
metadata.get_property('vector_hazard_classification')
metadata.get_property('raster_hazard_classification')
def test_standard_properties(self):
metadata = HazardLayerMetadata(unique_filename())
with self.assertRaises(KeyError):
metadata.get_property('non_existing_key')
# from BaseMetadata
metadata.get_property('email')
# from HazardLayerMetadata
metadata.get_property('hazard')
metadata.get_property('hazard_category')
metadata.get_property('continuous_hazard_unit')
metadata.get_property('vector_hazard_classification')
metadata.get_property('raster_hazard_classification')
def read_iso19115_metadata(layer_uri, keyword=None):
"""Retrieve keywords from a metadata object
:param layer_uri:
:param keyword:
:return:
"""
xml_uri = os.path.splitext(layer_uri)[0] + '.xml'
if not os.path.exists(xml_uri):
xml_uri = None
if not xml_uri and os.path.exists(layer_uri):
message = 'Layer based file but no xml file.\n'
message += 'Layer path: %s.' % layer_uri
raise NoKeywordsFoundError(message)
metadata = GenericLayerMetadata(layer_uri, xml_uri)
if metadata.layer_purpose == 'exposure':
metadata = ExposureLayerMetadata(layer_uri, xml_uri)
elif metadata.layer_purpose == 'hazard':
metadata = HazardLayerMetadata(layer_uri, xml_uri)
elif metadata.layer_purpose == 'aggregation':
metadata = AggregationLayerMetadata(layer_uri, xml_uri)
elif metadata.layer_purpose == 'impact':
metadata = ImpactLayerMetadata(layer_uri, xml_uri)
# dictionary comprehension
keywords = {
x[0]: x[1]['value']
for x in metadata.dict['properties'].iteritems()
if x[1]['value'] is not None
}
if 'keyword_version' not in keywords.keys() and xml_uri:
message = 'No keyword version found. Metadata xml file is invalid.\n'
message += 'Layer uri: %s\n' % layer_uri
message += 'Keywords file: %s\n' % os.path.exists(
os.path.splitext(layer_uri)[0] + '.xml')
message += 'keywords:\n'
for k, v in keywords.iteritems():
message += '%s: %s\n' % (k, v)
raise MetadataReadError(message)
keywords = {}
temp_keywords = {
x[0]: x[1]['value']
for x in metadata.dict['properties'].iteritems()
}
included = [
'aggregation attribute',
'female ratio attribute',
'youth ratio attribute',
'adult ratio attribute',
'elderly ratio attribute',
]
for key in temp_keywords.iterkeys():
if key in included:
keywords[key] = temp_keywords[key]
else:
if temp_keywords[key] is not None:
keywords[key] = temp_keywords[key]
if keyword:
try:
return keywords[keyword]
except KeyError:
message = 'Keyword with key %s is not found' % keyword
message += 'Layer path: %s' % layer_uri
raise KeywordNotFoundError(message)
if isinstance(metadata, ImpactLayerMetadata):
keywords['if_provenance'] = metadata.provenance
return keywords
def test_standard_properties(self):
metadata = HazardLayerMetadata(unique_filename())
with self.assertRaises(KeyError):
metadata.get_property("non_existing_key")
# from BaseMetadata
metadata.get_property("email")
# from HazardLayerMetadata
metadata.get_property("hazard")
metadata.get_property("hazard_category")
metadata.get_property("continuous_hazard_unit")
metadata.get_property("vector_hazard_classification")
metadata.get_property("raster_hazard_classification")