Python model.ProvDocument類代碼示例

    def deriveDependency(self, aDO, aRO, derivedList):

        d1 = ProvDocument()  # d1 is now an empty provenance document
        d1.add_namespace("dt", "http://cs.ncl.ac.uk/dtsim/")
        e1 = d1.entity(DTns + aRO.id)  # deriving
        ag1 = d1.agent(DTns + str(aDO.id))
        for der in derivedList:
            # create provlet
            e2 = d1.entity(DTns + der.id)  # derived
            d1.wasAttributedTo(e2, ag1)
            d1.wasDerivedFrom(e2, e1)

            # update upstream pointer
            der.upstream = [(aRO, None)]  # aRO is upstream from aRO with no activity

            # update downstream
            aRO.downstream.append((der, None))  # aR1 is downstream from aR1 with no activity

        # update global graph
        e1 = pGlobal.entity(DTns + aRO.id)  # deriving
        ag1 = pGlobal.agent(DTns + str(aDO.id))
        pGlobal.wasAttributedTo(e2, ag1)
        for der in derivedList:
            e2 = pGlobal.entity(DTns + der.id)  # derived
            pGlobal.wasDerivedFrom(e2, e1)

        # trigger credit recomputation
        for der in derivedList:
            # aRO needs its credit updated with aRO1.credit
            aCreditManager.addDerivationCredit(aRO, der.currentTotalCredit)

        # 		self.notify(d1)
        return d1

def get_provdoc(format,infile):
    if format == "json":
       return ProvDocument.deserialize(infile)
    elif format == "xml":
       return ProvDocument.deserialize(infile,format='xml')
    else:
       print "Error: unsupported format (xml and json are supported"

 def test_default_namespace_inheritance(self):
     prov_doc = ProvDocument()
     prov_doc.set_default_namespace('http://www.example.org/')
     bundle = prov_doc.bundle('bundle')
     e1 = bundle.entity('e1')
     self.assertIsNotNone(e1.identifier, "e1's identifier is None!")
     self.assertRoundTripEquivalence(prov_doc)

 def test_namespace_inheritance(self):
     prov_doc = ProvDocument()
     prov_doc.add_namespace('ex', 'http://www.example.org/')
     bundle = prov_doc.bundle('ex:bundle')
     e1 = bundle.entity('ex:e1')
     self.assertIsNotNone(e1.identifier, "e1's identifier is None!")
     self.do_tests(prov_doc)

def primer():
        a  = ProvDocument()
        script_path = os.path.dirname(os.path.abspath( __file__ )) #
        with open(str(script_path) + "/output.json") as json_file:
                line = json_file.readline()
                a =  a.deserialize(content=line)
        return a

def read(source, format=None):
    """
    Convenience function returning a ProvDocument instance.

    It does a lazy format detection by simply using try/except for all known
    formats. The deserializers should fail fairly early when data of the
    wrong type is passed to them thus the try/except is likely cheap. One
    could of course also do some more advanced format auto-detection but I am
    not sure that is necessary.

    The downside is that no proper error messages will be produced, use the
    format parameter to get the actual traceback.
    """
    # Lazy imports to not globber the namespace.
    from prov.model import ProvDocument

    from prov.serializers import Registry
    Registry.load_serializers()
    serializers = Registry.serializers.keys()

    if format:
        return ProvDocument.deserialize(source=source, format=format.lower())

    for format in serializers:
        try:
            return ProvDocument.deserialize(source=source, format=format)
        except:
            pass
    else:
        raise TypeError("Could not read from the source. To get a proper "
                        "error message, specify the format with the 'format' "
                        "parameter.")

def collections():
    g = ProvDocument()
    ex = Namespace('ex', 'http://example.org/')

    c1 = g.collection(ex['c1'])
    e1 = g.entity('ex:e1')
    g.hadMember(c1, e1)

    return g

    def test_xsd_qnames(self):
        prov_doc = ProvDocument()
        ex = Namespace('ex', 'http://www.example.org')
        prov_doc.add_namespace(ex)

        an_xsd_qname = XSDQName(ex['a_value'])
        prov_doc.entity('ex:e1', {'prov:value': an_xsd_qname})

        self.assertPROVJSONRoundTripEquivalence(prov_doc)

def document_with_n_bundles_having_default_namespace(n):
    prov_doc = ProvDocument()
    prov_doc.add_namespace('ex', 'http://www.example.org/')
    for i in range(n):
        x = str(i + 1)
        bundle = prov_doc.bundle('ex:bundle/' + x)
        bundle.set_default_namespace('http://www.example.org/default/' + x)
        bundle.entity('e')
    return prov_doc

def long_literals():
    g = ProvDocument()

    long_uri = "http://Lorem.ipsum/dolor/sit/amet/consectetur/adipiscing/elit/Quisque/vel/sollicitudin/felis/nec/venenatis/massa/Aenean/lectus/arcu/sagittis/sit/amet/nisl/nec/varius/eleifend/sem/In/hac/habitasse/platea/dictumst/Aliquam/eget/fermentum/enim/Curabitur/auctor/elit/non/ipsum/interdum/at/orci/aliquam/"
    ex = Namespace('ex', long_uri)
    g.add_namespace(ex)

    g.entity('ex:e1', {'prov:label': 'Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec pellentesque luctus nulla vel ullamcorper. Donec sit amet ligula sit amet lorem pretium rhoncus vel vel lorem. Sed at consequat metus, eget eleifend massa. Fusce a facilisis turpis. Lorem volutpat.'})

    return g

 def setUp(self):
     self.json_path = os.path.dirname(os.path.abspath(__file__)) + '/json/'
     filenames = os.listdir(self.json_path)
     self.fails = []
     for filename in filenames:
         if filename.endswith('.json'):
             with open(self.json_path + filename) as json_file:
                 try:
                     g1 = ProvDocument.deserialize(json_file)
                     json_str = g1.serialize(indent=4)
                     g2 = ProvDocument.deserialize(content=json_str)
                     self.assertEqual(g1, g2, 'Round-trip JSON encoding/decoding failed:  %s.' % filename)
                 except:
                     self.fails.append(filename)

    def test_xsd_qnames(self):
        prov_doc = ProvDocument()
        ex = Namespace('ex', 'http://www.example.org/')
        prov_doc.add_namespace(ex)
        ex1 = Namespace('ex1', 'http://www.example1.org/')  # ex1 is not added to the document

        an_xsd_qname = XSDQName(ex['a_value'])
        another_xsd_qname = XSDQName(ex1['another_value'])

        e1 = prov_doc.entity('ex:e1', {'prov:value': an_xsd_qname, 'prov:type': another_xsd_qname})
        for _, attr_value in e1.attributes:
            self.assertIsInstance(attr_value, XSDQName)

        self.assertRoundTripEquivalence(prov_doc)

    def test_loading_all_json(self):
        # self.assertFalse(fails, 'Failed to load/round-trip %d JSON files (%s)' % (len(fails), ', '.join(fails)))

        # Code for debugging the failed tests
        for filename in self.fails:
            # Reload the failed files
            filepath = self.json_path + filename
#             os.rename(json_path + filename, json_path + filename + '-fail')
            with open(filepath) as json_file:
                logger.info("Loading %s...", filepath)
                g1 = ProvDocument.deserialize(json_file)
                json_str = g1.serialize(indent=4)
                g2 = ProvDocument.deserialize(content=json_str)
                self.assertEqual(g1, g2, 'Round-trip JSON encoding/decoding failed:  %s.' % filename)

class ProjectProvenance:
    def __init__(self, database_helper, full_provenance=False):
        """
        Initializes the provenance for the mjclawar_rarshad project

        Parameters
        ----------
        database_helper: DatabaseHelper
        full_provenance: bool

        Returns
        -------
        """
        assert isinstance(database_helper, DatabaseHelper)

        self.database_helper = database_helper
        if full_provenance:
            self.prov_doc = ProvDocument.deserialize(dir_info.plan_json)
        else:
            self.prov_doc = ProvDocument()
        self.prov_doc.add_namespace(mcras.BDP_NAMESPACE.name, mcras.BDP_NAMESPACE.link)
        self.prov_doc.add_namespace(mcras.ALG_NAMESPACE.name, mcras.ALG_NAMESPACE.link)
        self.prov_doc.add_namespace(mcras.DAT_NAMESPACE.name, mcras.DAT_NAMESPACE.link)
        self.prov_doc.add_namespace(mcras.LOG_NAMESPACE.name, mcras.LOG_NAMESPACE.link)
        self.prov_doc.add_namespace(mcras.ONT_NAMESPACE.name, mcras.ONT_NAMESPACE.link)

    def write_provenance_json(self):
        self.prov_doc.serialize(dir_info.plan_json)

    def test_bundle_update_simple(self):
        doc = ProvDocument()
        doc.set_default_namespace(EX_URI)

        b1 = doc.bundle('b1')
        b1.entity('e')

        b2 = doc.bundle('b2')
        b2.entity('e')

        self.assertRaises(ProvException, lambda: b1.update(1))
        self.assertRaises(ProvException, lambda: b1.update(doc))

        b1.update(b2)
        self.assertEqual(len(b1.get_records()), 2)