class DatasetTestCase(unittest.TestCase):
"""
For testing metadata emitted by Dataset class
Dataset creates a graph describing the metadata associated with the dataset in
question, which should follow the HCLS specification for dataset descriptions
https://www.w3.org/TR/2015/NOTE-hcls-dataset-20150514/
"""
@classmethod
def setUpClass(cls):
cls.curie_map = curiemap.get()
# parameters passed to code, to be returned in graph
cls.monarch_archive_curie_prefix = "MonarchArchive"
cls.identifier = "fakeingest"
cls.ingest_description = "some ingest description"
cls.ingest_url = "http://fakeingest.com"
cls.ingest_title = "this ingest title"
cls.ingest_logo_url = "logo.png"
cls.license_url = "https://choosealicense.com/licenses/mit/"
cls.license_url_default = "https://project-open-data.cio.gov/unknown-license/"
cls.data_rights = "https://www.gnu.org/licenses/gpl-3.0.html"
cls.distribution_type = "ttl"
# parse test graph once, to test triples counts/statistics below
cls.test_ttl = "tests/resources/fakeingest/test_graph_simple.ttl"
cls.test_graph = RDFGraph()
cls.test_graph.parse(cls.test_ttl, format="turtle")
# expected things:
cls.expected_curie_prefix = "MonarchArchive"
cls.timestamp_date = datetime.today().strftime("%Y%m%d")
cls.base_cito = 'http://purl.org/spar/cito/'
cls.base_dcat = 'http://www.w3.org/ns/dcat#'
cls.base_dcterms = 'http://purl.org/dc/terms/'
cls.base_dctypes = 'http://purl.org/dc/dcmitype/'
cls.base_pav = 'http://purl.org/pav/'
cls.base_rdf = 'http://www.w3.org/1999/02/22-rdf-syntax-ns#'
cls.base_rdfs = 'http://www.w3.org/2000/01/rdf-schema#'
cls.base_schema = 'http://schema.org/'
cls.base_void = 'http://rdfs.org/ns/void#'
cls.base_owl = 'http://www.w3.org/2002/07/owl#'
cls.base_logo_url = "https://github.com/monarch-initiative/monarch-ui/blob/master/public/img/sources/"
# expected summary level IRI
cls.summary_level_IRI = URIRef(
cls.curie_map.get(cls.expected_curie_prefix) + "#" +
cls.identifier)
# expected version level IRI
cls.data_release_version = "19700101"
cls.version_level_IRI = URIRef(
cls.curie_map.get(cls.expected_curie_prefix) +
cls.data_release_version + "/" + "#" + cls.identifier)
cls.version_level_IRI_default_version = \
URIRef(
cls.curie_map.get(cls.expected_curie_prefix) +
cls.timestamp_date + "/" +
"#" + cls.identifier)
# expected distribution level IRI (for ttl resource)
cls.distribution_level_IRI_ttl = \
URIRef(
cls.curie_map.get(cls.expected_curie_prefix) +
cls.data_release_version + "/rdf/" +
cls.identifier + "." + cls.distribution_type)
cls.distribution_level_IRI_ttl_default_version = \
URIRef(
cls.curie_map.get(cls.expected_curie_prefix) +
cls.timestamp_date + "/rdf/" +
cls.identifier + "." + cls.distribution_type)
# set expected IRIs for predicates and other things
cls.iri_rdf_type = URIRef(cls.base_rdf + "type")
cls.iri_title = URIRef(cls.base_dcterms + "title")
cls.iri_dataset = URIRef(cls.base_dctypes + "Dataset")
cls.iri_description = URIRef(cls.base_dcterms + "description")
cls.iri_publisher = URIRef(cls.base_dcterms + "Publisher")
cls.iri_source = URIRef(cls.base_dcterms + "source")
cls.iri_logo = URIRef(cls.base_schema + "logo")
cls.iri_mi_org = URIRef("https://monarchinitiative.org/")
cls.iri_created = URIRef(cls.base_dcterms + "created")
cls.iri_version = URIRef(cls.base_pav + "version")
cls.iri_retrieved_on = URIRef(cls.base_pav + "retrievedOn")
cls.iri_creator = URIRef(cls.base_dcterms + "creator")
cls.iri_is_version_of = URIRef(cls.base_dcterms + "isVersionOf")
cls.iri_distribution = URIRef(cls.base_dcat + "Distribution")
cls.iri_created_with = URIRef(cls.base_pav + "createdWith")
cls.iri_format = URIRef(cls.base_dcterms + "format")
cls.iri_download_url = URIRef(cls.base_dcterms + "downloadURL")
cls.iri_license = URIRef(cls.base_dcterms + "license")
cls.iri_data_rights = URIRef(cls.base_dcterms + "rights")
cls.iri_cites_as_authority = URIRef(cls.base_cito + "citesAsAuthority")
cls.iri_rdfs_label = URIRef(cls.base_rdfs + "label")
cls.iri_owl_ontology = URIRef(cls.base_owl + "Ontology")
cls.iri_owl_version_iri = URIRef(cls.base_owl + "versionIRI")
cls.iri_owl_version_info = URIRef(cls.base_owl + "versionInfo")
cls.iri_returned_logo = URIRef(cls.base_logo_url + cls.ingest_logo_url)
cls.iri_expected_download_url_value = \
URIRef(
cls.curie_map.get("MonarchArchive") +
cls.data_release_version + "/rdf/" +
cls.identifier + "." + cls.distribution_type)
cls.iri_dipper = URIRef("https://github.com/monarch-initiative/dipper")
cls.iri_ttl_spec = URIRef("https://www.w3.org/TR/turtle/")
@classmethod
def tearDownClass(cls):
pass
def setUp(self):
self.dataset = Dataset(identifier=self.identifier,
data_release_version=self.data_release_version,
ingest_name=self.identifier,
ingest_title=self.ingest_title,
ingest_url=self.ingest_url,
ingest_logo=self.ingest_logo_url,
ingest_description=self.ingest_description,
license_url=self.license_url,
data_rights=self.data_rights)
# put all triples in a list for debugging below
self.all_triples = list(self.dataset.graph.triples((None, None, None)))
def tearDown(self):
pass
def test_dataset_has_graph(self):
self.assertIsInstance(self.dataset.graph, Graph,
"dataset doesn't contain an RDF graph")
def test_get_graph(self):
self.assertIsInstance(self.dataset.get_graph(), RDFGraph,
"get_graph() didn't return an RDF graph")
def test_get_license(self):
gpl2_iri = "https://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html"
self.dataset.license_url = gpl2_iri
self.assertEqual(self.dataset.get_license(), gpl2_iri,
"set_license didn't set license_url correctly")
def test_set_citation(self):
citation_iri =\
"http://purl.obolibrary.org/obo/uberon/releases/2016-01-26/uberon.owl"
self.dataset.set_citation(citation_iri)
self.assertTrue(self.dataset.citation.issuperset([citation_iri]))
triples = list(
self.dataset.graph.triples(
(self.version_level_IRI, URIRef(self.iri_cites_as_authority),
URIRef(citation_iri))))
self.assertTrue(len(triples) == 1, "missing citation triple")
def test_set_ingest_source_file_version_num(self):
this_version = "version1234"
file_iri = "http://somefilesource.org/file.txt"
self.dataset.set_ingest_source_file_version_num(file_iri, this_version)
triples = list(
self.dataset.graph.triples(
(URIRef(file_iri), self.iri_version, Literal(this_version))))
self.assertTrue(
len(triples) == 1, "ingest source file version not set")
def test_set_ingest_source_file_version_date(self):
this_version = "1970-01-01"
file_iri = "http://somefilesource.org/file.txt"
self.dataset.set_ingest_source_file_version_date(
file_iri, this_version)
triples = list(
self.dataset.graph.triples((URIRef(file_iri), self.iri_version,
Literal(this_version,
datatype=XSD.date))))
self.assertTrue(
len(triples) == 1,
"ingest source file version not set with literal type of date")
#
# Test summary level triples:
#
def test_summary_level_type(self):
triples = list(
self.dataset.graph.triples(
(self.summary_level_IRI, self.iri_rdf_type, self.iri_dataset)))
self.assertTrue(len(triples) == 1, "missing summary level type triple")
def test_summary_level_title(self):
triples = list(
self.dataset.graph.triples((self.summary_level_IRI, self.iri_title,
Literal(self.ingest_title))))
self.assertTrue(
len(triples) == 1, "missing summary level title triple")
def test_summary_level_description(self):
# by default, description is the class's docstring
triples = list(
self.dataset.graph.triples(
(self.summary_level_IRI, self.iri_description,
Literal(self.ingest_description))))
self.assertTrue(
len(triples) == 1, "missing summary level description triple")
def test_summary_level_publisher(self):
triples = list(
self.dataset.graph.triples(
(self.summary_level_IRI, self.iri_publisher, self.iri_mi_org)))
self.assertTrue(
len(triples) == 1, "missing summary level publisher triple")
def test_summary_level_source_web_page(self):
triples = list(
self.dataset.graph.triples(
(self.summary_level_IRI, self.iri_source,
URIRef(self.ingest_url))))
self.assertTrue(
len(triples) == 1, "missing summary level source page triple")
def test_summary_level_source_logo(self):
triples = list(
self.dataset.graph.triples((self.summary_level_IRI, self.iri_logo,
URIRef(self.iri_returned_logo))))
self.assertTrue(
len(triples) == 1, "missing summary level source logo triple")
def test_summary_level_ontology_type_declaration(self):
triples = list(
self.dataset.graph.triples(
(self.summary_level_IRI, self.iri_rdf_type,
self.iri_owl_ontology)))
self.assertTrue(
len(triples) == 1,
"missing distribution level owl ontology type triple")
def test_summary_level_owl_version_iri(self):
triples = list(
self.dataset.graph.triples(
(self.summary_level_IRI, self.iri_owl_version_iri, None)))
self.assertTrue(
len(triples) == 1,
"missing distribution level owl version iri triple")
self.assertEqual(triples[0][2], URIRef(self.version_level_IRI),
"owl version iri triple has the wrong object")
#
# Test version level resource triples:
#
def test_version_level_type(self):
triples = list(
self.dataset.graph.triples(
(self.version_level_IRI, self.iri_rdf_type, self.iri_dataset)))
self.assertTrue(len(triples) == 1, "missing version level type triple")
def test_version_level_title(self):
triples = list(
self.dataset.graph.triples(
(self.version_level_IRI, self.iri_title, None)))
self.assertTrue(
len(triples) == 1, "missing version level title triple")
self.assertEqual(
triples[0][2],
Literal(self.ingest_title + " Monarch version " +
self.data_release_version),
"version level title triple has wrong value")
def test_version_level_description(self):
triples = list(
self.dataset.graph.triples(
(self.version_level_IRI, self.iri_description,
Literal(self.ingest_description))))
self.assertTrue(
len(triples) == 1, "missing version level description triple")
def test_version_level_created(self):
triples = list(
self.dataset.graph.triples(
(self.version_level_IRI, self.iri_created, None)))
self.assertTrue(
len(triples) == 1,
"didn't get exactly 1 version level created triple")
self.assertEqual(
triples[0][2],
Literal(datetime.today().strftime("%Y%m%d"), datatype=XSD.date),
"version level created triple has the wrong timestamp")
def test_version_level_version_default(self):
triples = list(
self.dataset.graph.triples(
(self.version_level_IRI, self.iri_version, None)))
self.assertTrue(
len(triples) == 1,
"didn't get exactly one version level version triple")
self.assertEqual(
triples[0][2], Literal(self.data_release_version,
datatype=XSD.date),
"version level version triple (default) has the wrong " +
"timestamp")
def test_version_level_version_set_explicitly(self):
self.dataset = Dataset(identifier=self.identifier,
data_release_version=self.data_release_version,
ingest_name=self.identifier,
ingest_title=self.ingest_title,
ingest_url=self.ingest_url,
ingest_logo=self.ingest_logo_url,
ingest_description=self.ingest_description,
license_url=None,
data_rights=self.data_rights)
triples = list(
self.dataset.graph.triples(
(self.version_level_IRI, self.iri_version, None)))
self.assertTrue(
len(triples) == 1,
"didn't get exactly one version level version triple")
self.assertEqual(
triples[0][2], Literal(self.data_release_version,
datatype=XSD.date),
"version level version triple (set explicitly) is wrong ")
def test_version_level_creator(self):
triples = list(
self.dataset.graph.triples(
(self.version_level_IRI, self.iri_creator, self.iri_mi_org)))
self.assertTrue(
len(triples) == 1, "missing version level creator triple")
def test_version_level_publisher(self):
triples = list(
self.dataset.graph.triples(
(self.version_level_IRI, self.iri_publisher, self.iri_mi_org)))
self.assertTrue(
len(triples) == 1, "missing version level publisher triple")
def test_version_level_isVersionOf(self):
triples = list(
self.dataset.graph.triples(
(self.version_level_IRI, self.iri_is_version_of,
self.summary_level_IRI)))
self.assertTrue(
len(triples) == 1, "missing version level isVersionOf triple")
def test_version_level_distribution(self):
triples = list(
self.dataset.graph.triples(
(self.version_level_IRI, self.iri_distribution,
self.distribution_level_IRI_ttl)))
self.assertTrue(
len(triples) == 1, "missing version level distribution triple")
#
# test distribution level triples
#
def test_distribution_level_dataset_type(self):
triples = list(
self.dataset.graph.triples((self.distribution_level_IRI_ttl,
self.iri_rdf_type, self.iri_dataset)))
self.assertTrue(
len(triples) == 1, "missing version level type dataset triple")
def test_distribution_level_distribution_type(self):
triples = list(
self.dataset.graph.triples(
(self.distribution_level_IRI_ttl, self.iri_rdf_type,
self.iri_distribution)))
self.assertTrue(
len(triples) == 1,
"missing version level type distribution triple")
def test_distribution_level_title(self):
triples = list(
self.dataset.graph.triples(
(self.distribution_level_IRI_ttl, self.iri_title, None)))
self.assertTrue(
len(triples) == 1, "missing distribution level type title triple")
self.assertEqual(
triples[0][2],
Literal(self.ingest_title + " distribution " +
self.distribution_type),
"distribution level title triple has wrong value")
def test_distribution_level_description(self):
triples = list(
self.dataset.graph.triples(
(self.distribution_level_IRI_ttl, self.iri_description,
Literal(self.ingest_description))))
self.assertTrue(
len(triples) == 1, "missing version level type description triple")
def test_distribution_level_created(self):
triples = list(
self.dataset.graph.triples(
(self.distribution_level_IRI_ttl, self.iri_created, None)))
self.assertTrue(
len(triples) == 1,
"didn't get exactly 1 version level type created triple")
self.assertEqual(
triples[0][2],
Literal(datetime.today().strftime("%Y%m%d"), datatype=XSD.date))
def test_distribution_level_version(self):
triples = list(
self.dataset.graph.triples(
(self.distribution_level_IRI_ttl, self.iri_version, None)))
self.assertTrue(
len(triples) == 1,
"didn't get exactly 1 version level type version triple")
self.assertEqual(triples[0][2],
Literal(self.data_release_version, datatype=XSD.date))
def test_distribution_level_creator(self):
triples = list(
self.dataset.graph.triples((self.distribution_level_IRI_ttl,
self.iri_creator, self.iri_mi_org)))
self.assertTrue(
len(triples) == 1, "missing distribution level creator triple")
def test_distribution_level_publisher(self):
triples = list(
self.dataset.graph.triples((self.distribution_level_IRI_ttl,
self.iri_publisher, self.iri_mi_org)))
self.assertTrue(
len(triples) == 1, "missing distribution level publisher triple")
def test_distribution_level_created_with(self):
triples = list(
self.dataset.graph.triples(
(self.distribution_level_IRI_ttl, self.iri_created_with,
self.iri_dipper)))
self.assertTrue(
len(triples) == 1, "missing distribution level createdWith triple")
def test_distribution_level_format(self):
triples = list(
self.dataset.graph.triples((self.distribution_level_IRI_ttl,
self.iri_format, self.iri_ttl_spec)))
self.assertTrue(
len(triples) == 1, "missing distribution level format triple")
def test_distribution_level_download_url(self):
triples = list(
self.dataset.graph.triples((self.distribution_level_IRI_ttl,
self.iri_download_url, None)))
self.assertTrue(
len(triples) == 1, "didn't get exactly 1 downloadURL triple")
self.assertEqual(triples[0][2], self.iri_expected_download_url_value,
"didn't get the expected downloadURL value")
def test_distribution_level_license_url(self):
triples = list(
self.dataset.graph.triples(
(self.distribution_level_IRI_ttl, self.iri_license,
URIRef(self.license_url))))
self.assertTrue(
len(triples) == 1, "missing distribution level license triple")
def test_distribution_level_data_rights(self):
triples = list(
self.dataset.graph.triples(
(self.distribution_level_IRI_ttl, self.iri_data_rights,
URIRef(self.data_rights))))
self.assertTrue(
len(triples) == 1, "missing distribution level data rights triple")
def test_distribution_level_no_license_url_default_value(self):
self.dataset = Dataset(identifier=self.identifier,
data_release_version=None,
ingest_name=self.identifier,
ingest_title=self.ingest_title,
ingest_url=self.ingest_url,
ingest_logo=self.ingest_logo_url,
ingest_description=self.ingest_description,
license_url=None,
data_rights=self.data_rights)
triples = list(
self.dataset.graph.triples(
(self.distribution_level_IRI_ttl_default_version,
self.iri_license, URIRef(self.license_url_default))))
self.assertTrue(
len(triples) == 1,
"distribution level default license triple not set")
class Source:
"""
Abstract class for any data sources that we'll import and process.
Each of the subclasses will fetch() the data, scrub() it as necessary,
then parse() it into a graph. The graph will then be written out to
a single self.name().<dest_fmt> file.
Also provides a means to marshal metadata in a consistent fashion
Houses the global translation table (from ontology label to ontology term)
so it may as well be used everywhere.
"""
DIPPERCACHE = 'https://archive.monarchinitiative.org/DipperCache'
namespaces = {}
files = {}
ARGV = {}
def __init__(
self,
graph_type='rdf_graph', # or streamed_graph
are_bnodes_skized=False, # typically True
data_release_version=None,
name=None, # identifier; make an URI for nquads
ingest_title=None,
ingest_url=None,
ingest_logo=None, # this should be the name of file on 'MonarchLogoRepo'
ingest_description=None,
license_url=None, # only if it is _our_ lic
data_rights=None, # their page that points to their current lic
file_handle=None,
):
# pull in the common test identifiers
self.all_test_ids = self.open_and_parse_yaml('../../resources/test_ids.yaml')
self.graph_type = graph_type
self.are_bnodes_skized = are_bnodes_skized
self.data_release_version = data_release_version
self.ingest_title = ingest_title
self.ingest_url = ingest_url
self.ingest_logo = ingest_logo
self.ingest_description = ingest_description
self.license_url = license_url
self.data_rights = data_rights
self.localtt = self.load_local_translationtable(name)
self.remote_file_timestamps = dict()
if name is not None:
self.name = name.lower()
elif self.whoami() is not None:
self.name = self.whoami().lower()
LOG.info("Processing Source \"%s\"", self.name)
self.test_only = False
self.path = ""
# to be used to store a subset of data for testing downstream.
self.triple_count = 0
self.outdir = 'out'
self.testdir = 'tests'
self.rawdir = '/'.join(('raw', self.name))
self.testname = name + "_test"
self.testfile = '/'.join((self.outdir, self.testname + ".ttl"))
self.datasetfile = None
# if raw data dir doesn't exist, create it
if not os.path.exists(self.rawdir):
os.makedirs(self.rawdir)
raw_pth = os.path.abspath(self.rawdir)
LOG.info("creating raw directory for %s at %s", self.name, raw_pth)
# else: # raw data dir does exist. maybe should consider what is in it?
# if output dir doesn't exist, create it
if not os.path.exists(self.outdir):
os.makedirs(self.outdir)
out_pth = os.path.abspath(self.outdir)
LOG.info("created output directory %s", out_pth)
else:
out_pth = os.path.abspath(self.outdir)
LOG.info("Creating Test graph %s", self.testname)
# note: tools such as protoge need skolemized blank nodes
self.testgraph = RDFGraph(True, self.testname)
if graph_type == 'rdf_graph':
graph_id = ':MONARCH_' + str(self.name) + "_" + \
datetime.now().isoformat(' ').split()[0]
LOG.info("Creating graph %s", graph_id)
self.graph = RDFGraph(are_bnodes_skized, graph_id)
elif graph_type == 'streamed_graph':
# need to expand on export formats
dest_file = open(out_pth + '/' + name + '.nt', 'w') # where is the close?
self.graph = StreamedGraph(are_bnodes_skized, dest_file)
# leave test files as turtle (better human readibility)
else:
LOG.error(
"%s graph type not supported\n"
"valid types: rdf_graph, streamed_graph", graph_type)
# pull in global ontology mapping datastructures
self.globaltt = self.graph.globaltt
self.globaltcid = self.graph.globaltcid
self.curie_map = self.graph.curie_map
# self.prefix_base = {v: k for k, v in self.curie_map.items()}
# will be set to True if the intention is
# to only process and write the test data
self.test_only = False
self.test_mode = False
if self.ingest_description and getdoc(self) is not None:
self.ingest_description = getdoc(self)
self.dataset = Dataset(
identifier=self.name,
data_release_version=self.data_release_version,
ingest_name=self.name,
ingest_title=self.ingest_title,
ingest_url=self.ingest_url,
ingest_logo=self.ingest_logo,
ingest_description=self.ingest_description, # description
license_url=self.license_url, # only _OUR_ lic
data_rights=self.data_rights, # tries to point to others lics
graph_type=graph_type,
file_handle=file_handle
)
# see jenkins file human, mouse, zebrafish, fly, worm rat
self.COMMON_TAXON = ['9606','10090','7955','7227','6239'] # '10116'
def fetch(self, is_dl_forced=False):
"""
abstract method to fetch all data from an external resource.
this should be overridden by subclasses
:return: None
"""
raise NotImplementedError
def parse(self, limit):
"""
abstract method to parse all data from an external resource,
that was fetched in fetch() this should be overridden by subclasses
:return: None
"""
raise NotImplementedError
def write(self, fmt='turtle', stream=None, write_metadata_in_main_graph=False):
"""
This convenience method will write out all of the graphs
associated with the source.
Right now these are hardcoded to be a single main "graph"
and a "src_dataset.ttl" and a "src_test.ttl"
If you do not supply stream='stdout'
it will default write these to files.
In addition, if the version number isn't yet set in the dataset,
it will be set to the date on file.
:return: None
"""
fmt_ext = {
'rdfxml': 'xml',
'turtle': 'ttl',
'nt': 'nt', # ntriples
'nquads': 'nq',
'n3': 'n3' # notation3
}
# make the regular graph output file
dest = None
if self.name is not None:
dest = '/'.join((self.outdir, self.name))
if fmt in fmt_ext:
dest = '.'.join((dest, fmt_ext.get(fmt)))
else:
dest = '.'.join((dest, fmt))
LOG.info("Setting outfile to %s", dest)
# make the dataset_file name, always format as turtle
self.datasetfile = '/'.join(
(self.outdir, self.name + '_dataset.ttl'))
LOG.info("Setting dataset file to %s", self.datasetfile)
else:
LOG.warning("No output file set. Using stdout")
stream = 'stdout'
graph_util = GraphUtils(None)
# the _dataset description is always turtle
graph_util.write(self.dataset.get_graph(), 'turtle', filename=self.datasetfile)
if self.test_mode:
# unless we stop hardcoding, the test dataset is always turtle
LOG.info("Setting testfile to %s", self.testfile)
graph_util.write(self.testgraph, 'turtle', filename=self.testfile)
if write_metadata_in_main_graph:
self.graph = self.graph + self.dataset.get_graph()
# print graph out
if stream is None:
outfile = dest
elif stream.lower().strip() == 'stdout':
outfile = None
else:
LOG.error("I don't understand our stream.")
return
graph_util.write(self.graph, fmt, filename=outfile)
def whoami(self):
'''
pointless convieniance
'''
LOG.info("Ingest is %s", self.name)
@staticmethod
def make_id(long_string, prefix='MONARCH'):
"""
a method to create DETERMINISTIC identifiers
based on a string's digest. currently implemented with sha1
:param long_string:
:return:
"""
return ':'.join((prefix, Source.hash_id(long_string)))
@staticmethod
def hash_id(wordage): # same as graph/GraphUtils.digest_id(wordage)
"""
prepend 'b' to avoid leading with digit
truncate to a 20 char sized word with a leading 'b'
return truncated sha1 hash of string.
by the birthday paradox;
expect 50% chance of collision after 69 billion invocations
however these are only hoped to be unique within a single file
Consider reducing to 17 hex chars to fit in a 64 bit word
16 discounting a leading constant
gives a 50% chance of collision at about 4.3b billion unique input strings
(currently _many_ orders of magnitude below that)
:param long_string: str string to be hashed
:return: str hash of id
"""
return 'b' + hashlib.sha1(wordage.encode('utf-8')).hexdigest()[1:20]
def check_if_remote_is_newer(self, remote, local, headers):
"""
Given a remote file location, and the corresponding local file
this will check the datetime stamp on the files to see if the remote
one is newer.
This is a convenience method to be used so that we don't have to
re-fetch files that we already have saved locally
:param remote: URL of file to fetch from remote server
:param local: pathname to save file to locally
:return: True if the remote file is newer and should be downloaded
"""
is_remote_newer = False
LOG.info("Checking if remote file is newer than local \n(%s)", local)
# check if local file exists
# if no local file, then remote is newer
if os.path.exists(local):
LOG.info("Local File exists as %s", local)
else:
LOG.info("Local File does NOT exist as %s", local)
return True
# get remote file details (if possible)
if headers is None:
headers = self._get_default_request_headers()
req = urllib.request.Request(remote, headers=headers)
LOG.info("Request header for %s \n\tis: %s", remote, str(req.header_items()))
try:
response = urllib.request.urlopen(req)
except urllib.error.URLError as err:
resp_headers = None
size = 0
last_modified = None
LOG.error('%s\n\tFor: %s', err, remote)
is_remote_newer = None
if is_remote_newer is not None:
resp_headers = response.info()
size = resp_headers.get('Content-Length')
last_modified = resp_headers.get('Last-Modified')
if size is not None and size != '':
size = int(size)
else:
size = 0
fstat = os.stat(local)
LOG.info(
"Local File date: %s",
datetime.utcfromtimestamp(fstat[ST_CTIME]))
if last_modified is not None:
# Thu, 07 Aug 2008 16:20:19 GMT
dt_obj = datetime.strptime(
last_modified, "%a, %d %b %Y %H:%M:%S %Z")
self.remote_file_timestamps[remote] = dt_obj
# get local file details
# check date on local vs remote file
if dt_obj > datetime.utcfromtimestamp(fstat[ST_CTIME]):
# check if file size is different
if fstat[ST_SIZE] < size:
LOG.info("New Remote File exists")
is_remote_newer = True
if fstat[ST_SIZE] > size:
LOG.warning("New Remote File exists but it is SMALLER")
is_remote_newer = True
# filesize is a fairly imperfect metric here
LOG.info("New Remote File has same filesize--will not download")
elif fstat[ST_SIZE] != size:
LOG.info(
"Remote File is %i \t Local File is %i", size, fstat[ST_SIZE])
is_remote_newer = True
response.close()
return is_remote_newer
def get_files(self, is_dl_forced, files=None, delay=0):
"""
Given a set of files for this source, it will go fetch them, and
set a default version by date. If you need to set the version number
by another method, then it can be set again.
:param is_dl_forced - boolean
:param files dict - override instance files dict
:return: None
"""
fstat = None
if files is None:
files = self.files
for src_key in files:
headers = None
filesource = files[src_key]
if 'clean' in filesource:
cleaned_file_iri = filesource['clean']
else:
cleaned_file_iri = filesource['url']
# attempt to fetch from a web cache
remote_file = '/'.join((self.DIPPERCACHE, self.name, filesource['file']))
local_file = '/'.join((self.rawdir, filesource['file']))
cache_response = self.fetch_from_url(remote_file, local_file, is_dl_forced)
if cache_response:
LOG.info(
"Found File '%s/%s' in DipperCache", self.name, filesource['file'])
self.dataset.set_ingest_source(cleaned_file_iri)
if remote_file in self.remote_file_timestamps:
# Here the timestamp on the file in DipperCache is a best effort
# representation of the earliest time the file
# _could_ have been retrieved from source.
# not necessarily when it _was_ retrieved (e.g not 11 years ago)
# which will be not-before the timestamp (modulo timezones).
timestamp = Literal(
self.remote_file_timestamps[remote_file], datatype=XSD.dateTime)
self.dataset.graph.addTriple(
cleaned_file_iri, self.globaltt['retrieved_on'], timestamp)
else:
LOG.warning(
"File %s/%s absent from DipperCache", self.name, filesource['file'])
if 'headers' in filesource:
headers = filesource['headers']
LOG.info("Getting %s", src_key)
# if the key 'clean' exists in the sources `files` dict
# expose that instead of the longer url
self.dataset.set_ingest_source(cleaned_file_iri)
LOG.info('Fetching %s in %i seconds', cleaned_file_iri, delay)
time.sleep(delay)
if not self.fetch_from_url(
filesource['url'],
'/'.join((self.rawdir, filesource['file'])),
is_dl_forced, headers):
LOG.warning('FAILED FETCH of %s', filesource['url'])
fstat = os.stat('/'.join((self.rawdir, filesource['file'])))
self.dataset.graph.addTriple(
self.dataset.version_level_curie, self.globaltt["Source"],
cleaned_file_iri)
filedate = Literal(
datetime.utcfromtimestamp(fstat[ST_CTIME]).strftime("%Y%m%d"),
datatype=XSD.date)
self.dataset.graph.addTriple(
cleaned_file_iri, self.globaltt['retrieved_on'], filedate)
def fetch_from_url(
self, remoteurl, localfile=None, is_dl_forced=False, headers=None):
"""
Given a remote url and a local filename, attempt to determine
if the remote file is newer; if it is,
fetch the remote file and save it to the specified localfile,
reporting the basic file information once it is downloaded
:param remoteurl: URL of remote file to fetch
:param localfile: pathname of file to save locally
:return: bool
"""
response = None
result = False
rmt_check = self.check_if_remote_is_newer(remoteurl, localfile, headers)
if (is_dl_forced is True) or (localfile is None) or (
rmt_check is not None and rmt_check):
if headers is None:
headers = self._get_default_request_headers()
try:
request = urllib.request.Request(remoteurl, headers=headers)
response = urllib.request.urlopen(request)
except urllib.error.HTTPError as httpErr:
# raise Exception(httpErr.read())
LOG.error('NETWORK issue %s\n\tFor: %s', httpErr.read(), remoteurl)
return False # allows re try (e.g. not found in Cache)
except urllib.error.URLError as urlErr:
LOG.error('URLError %s\n\tFor: %s', urlErr, remoteurl)
result = response is not None
if localfile is not None and result:
with open(localfile, 'wb') as binwrite:
while True:
chunk = response.read(CHUNK)
if not chunk:
break
binwrite.write(chunk)
LOG.info("Finished. Wrote file to %s", localfile)
if self.compare_local_remote_bytes(remoteurl, localfile, headers):
LOG.debug("local file is same size as remote after download")
else:
raise Exception(
"Error downloading file: "
"local file size != remote file size")
fstat = os.stat(localfile)
LOG.info("file size: %s", fstat[ST_SIZE])
LOG.info(
"file created: %s",
time.asctime(time.localtime(fstat[ST_CTIME])))
response.close()
else:
LOG.error('Local filename is required')
exit(-1)
else:
LOG.info("Using existing file %s", localfile)
return result
# TODO: rephrase as mysql-dump-xml specific format
def process_xml_table(self, elem, table_name, processing_function, limit):
"""
This is a convenience function to process the elements of an xml dump of
a mysql relational database.
The "elem" is akin to a mysql table, with it's name of ```table_name```.
It will process each ```row``` given the ```processing_function``` supplied.
:param elem: The element data
:param table_name: The name of the table to process
:param processing_function: The row processing function
:param limit:
Appears to be making calls to the elementTree library
although it not explicitly imported here.
:return:
"""
line_counter = 0
table_data = elem.find("[@name='" + table_name + "']")
if table_data is not None:
LOG.info("Processing " + table_name)
row = {}
for line in table_data.findall('row'):
for field in line.findall('field'):
atts = dict(field.attrib)
row[atts['name']] = field.text
processing_function(row)
line_counter += 1
if self.test_mode and limit is not None and line_counter > limit:
continue
elem.clear() # discard the element
@staticmethod
def _check_list_len(row, length):
"""
Sanity check for csv parser
:param row
:param length
:return:None
"""
if len(row) != length:
raise Exception(
"row length does not match expected length of " +
str(length) + "\nrow: " + str(row))
@staticmethod
def get_file_md5(directory, filename, blocksize=2**20):
# reference:
# http://stackoverflow.com/questions/1131220/get-md5-hash-of-big-files-in-python
md5 = hashlib.md5()
with open(os.path.join(directory, filename), "rb") as bin_reader:
while True:
buff = bin_reader.read(blocksize)
if not buff:
break
md5.update(buff)
return md5.hexdigest()
def get_remote_content_len(self, remote, headers=None):
"""
:param remote:
:return: size of remote file
"""
if headers is None:
headers = self._get_default_request_headers()
req = urllib.request.Request(remote, headers=headers)
try:
response = urllib.request.urlopen(req)
resp_header = response.info()
byte_size = resp_header.get('Content-length')
except OSError as err:
byte_size = None
LOG.error('%s\n\tFor: %s', err, remote)
return byte_size
@staticmethod
def get_local_file_size(localfile):
"""
:param localfile:
:return: size of file
"""
byte_size = os.stat(localfile)
return byte_size[ST_SIZE]
def compare_local_remote_bytes(self, remotefile, localfile, remote_headers=None):
"""
test to see if fetched file is the same size as the remote file
using information in the content-length field in the HTTP header
:return: True or False
"""
is_equal = True
remote_size = self.get_remote_content_len(remotefile, remote_headers)
local_size = self.get_local_file_size(localfile)
if remote_size is not None and local_size != int(remote_size):
is_equal = False
LOG.error(
'local file and remote file different sizes\n'
'%s has size %s, %s has size %s',
localfile, local_size, remotefile, remote_size)
return is_equal
@staticmethod
def file_len(fname):
with open(fname) as lines:
length = sum(1 for line in lines)
return length
def settestonly(self, testonly):
"""
Set that this source should only be processed in testMode
:param testOnly:
:return: None
"""
self.test_only = testonly
def settestmode(self, mode):
"""
Set testMode to (mode).
- True: run the Source in testMode;
- False: run it in full mode
:param mode:
:return: None
"""
self.test_mode = mode
def getTestSuite(self):
"""
An abstract method that should be overwritten with
tests appropriate for the specific source.
:return:
"""
return None
@staticmethod
def remove_backslash_r(filename, encoding):
"""
A helpful utility to remove Carriage Return from any file.
This will read a file into memory,
and overwrite the contents of the original file.
TODO: This function may be a liability
:param filename:
:return:
"""
with open(filename, 'r', encoding=encoding, newline=r'\n') as filereader:
contents = filereader.read()
contents = re.sub(r'\r', '', contents)
with open(filename, "w") as filewriter:
filewriter.truncate()
filewriter.write(contents)
@staticmethod
def open_and_parse_yaml(yamlfile):
"""
:param file: String, path to file containing label-id mappings in
the first two columns of each row
:return: dict where keys are labels and values are ids
"""
# ??? what if the yaml file does not contain a dict datastructure?
mapping = dict()
if os.path.exists(os.path.join(os.path.dirname(__file__), yamlfile)):
map_file = open(os.path.join(os.path.dirname(__file__), yamlfile), 'r')
mapping = yaml.safe_load(map_file)
map_file.close()
else:
LOG.warning("file: %s not found", yamlfile)
return mapping
@staticmethod
def parse_mapping_file(file):
"""
:param file: String, path to file containing label-id mappings
in the first two columns of each row
:return: dict where keys are labels and values are ids
"""
id_map = {}
if os.path.exists(os.path.join(os.path.dirname(__file__), file)):
with open(os.path.join(os.path.dirname(__file__), file)) as tsvfile:
reader = csv.reader(tsvfile, delimiter="\t")
for row in reader:
key = row[0]
value = row[1]
id_map[key] = value
return id_map
@staticmethod
def _get_default_request_headers():
return {
'User-Agent': USER_AGENT
}
# @staticmethod
# def getTestSuite(ingest): # WIP
# '''
# try to avoid having one of these per ingest
# '''
# import unittest
# testcase = ingest + 'TestCase'
# # construct import names ... how
# from tests.test_ + ingest import testcase
# return unittest.TestLoader().loadTestsFromTestCase(testcase)
def load_local_translationtable(self, name):
'''
Load "ingest specific" translation from whatever they called something
to the ontology label we need to map it to.
To facilitate seeing more ontology labels in dipper ingests
a reverse mapping from ontology labels to external strings is also generated
and available as a dict localtcid
'---\n# %s.yaml\n"": "" # example'
'''
localtt_file = '../../translationtable/' + name + '.yaml'
try:
with open(os.path.join(os.path.dirname(__file__), localtt_file)):
pass
except IOError:
# write a stub file as a place holder if none exists
with open(os.path.join(os.path.dirname(__file__),
localtt_file), 'w') as write_yaml:
print('---\n# %s.yaml\n"": "" # example' % name, file=write_yaml)
finally:
with open(os.path.join(os.path.dirname(__file__),
localtt_file), 'r') as read_yaml:
localtt = yaml.safe_load(read_yaml)
# inverse local translation.
# note: keeping this invertable will be work.
# Useful to not litter an ingest with external syntax
self.localtcid = {v: k for k, v in localtt.items()}
return localtt
def resolve(self, word, mandatory=True, default=None):
'''
composite mapping
given f(x) and g(x)
here: localtt & globaltt respectivly
return g(f(x))|g(x)||f(x)|x in order of preference
returns x|default on fall through
if finding a mapping is not mandatory (by default finding is mandatory).
This may be specialized further from any mapping
to a global mapping only; if need be.
:param word: the string to find as a key in translation tables
:param mandatory: boolean to cause failure when no key exists
:param default: string to return if nothing is found (& not manandatory)
:return
value from global translation table,
or value from local translation table,
or the query key if finding a value is not mandatory (in this order)
'''
assert word is not None
# we may not agree with a remote sources use of a global term we have
# this provides opportunity for us to override
if word in self.localtt:
label = self.localtt[word]
if label in self.globaltt:
term_id = self.globaltt[label]
else:
logging.info( #
"Translated to '%s' but no global term_id for: '%s'", label, word)
term_id = label
elif word in self.globaltt:
term_id = self.globaltt[word]
else:
if mandatory:
raise KeyError("Mapping required for: ", word)
logging.warning("We have no translation for: '%s'", word)
if default is not None:
term_id = default
else:
term_id = word
return term_id
@staticmethod
def check_fileheader(expected, received, src_key=None):
'''
Compare file headers received versus file headers expected
if the expected headers are a subset (proper or not)
of received headers report suscess (warn if proper subset)
param: expected list
param: received list
return: truthyness
'''
exp = set(expected)
got = set(received)
if expected != received:
LOG.error(
'file resource: %s\nExpected header:\n %s\nRecieved header:\n %s',
src_key, expected, received)
# pass reordering and adding new columns (after protesting)
# hard fail on missing expected columns (temper with mandatory cols?)
if exp - got != set():
LOG.error('Missing: %s', exp - got)
raise AssertionError('Incomming headers are missing expected column.')
if got - exp != set():
LOG.warning('Addtional new columns: %s', got - exp)
else:
LOG.warning('Check columns order')
return (exp ^ got) & exp == set()
def command_args(self):
'''
To make arbitrary variables from dipper-etl.py's calling enviroment
available when working in source ingests in a hopefully universal way
Does not appear to be populated till after an ingest's _init_() finishes.
'''
# testing
LOG.info(
'Command line arguments available to %s:\n%s', self.name,
"\n".join(["\t'{}': '{}'".format(k, v) for k, v in self.ARGV.items()]))
