Viewing file:  RdfHelper.py (2.76 KB) -rw-r--r--
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import sys
from Ft.Rdf import BNODE_BASE
def make_anonymous(id, anons):
if anons.has_key(id):
return anons[id]
anon = 'ANONYMOUS%d' % len(anons)
if sys.hexversion >= 0x2000000:
anon = unicode(anon)
anons[id] = anon
return anon
def change_anonymous(statement, anonymous, anon_ids):
if statement[0][:len(anonymous)] == anonymous:
statement[0] = make_anonymous(statement[0], anon_ids)
if statement[2][:len(anonymous)] == anonymous:
statement[2] = make_anonymous(statement[2], anon_ids)
return statement
def make_tuple(statements, source_uri):
anons = {}
anonymous = BNODE_BASE
result = []
for statement in statements:
stmt = [statement.subject,
statement.predicate,
statement.object,
statement.uri,
statement.scope,
]
change_anonymous(stmt, anonymous, anons)
#change_anonymous(stmt, 'anonymous:', anons)
result.append(tuple(stmt))
result.sort()
return result
def convert_tuple(statements):
if sys.hexversion >= 0x2000000:
statements = [ tuple(map(unicode, stmt)) for stmt in statements ]
else:
statements = statements[:]
statements.sort()
return statements
def compare_tuple(expected, actual):
if sys.hexversion >= 0x2000000:
expected = [ tuple(map(unicode, stmt)) for stmt in expected ]
actual = [ tuple(map(unicode, stmt)) for stmt in actual ]
else:
actual = actual[:]
#import pprint
#print "Expected:"
#pprint.pprint(expected)
#print "Compared:"
#pprint.pprint(actual)
for stmt in expected:
try:
actual.remove(stmt)
except ValueError:
print "statement missing from actual: (failed comparison)", stmt
return 1
# Zero means equal
return len(actual)
def print_tuple(statements):
max_subj = len('subject')
max_pred = len('predicate')
max_obj = len('object')
for statement in statements:
subj = len(statement[0])
pred = len(statement[1])
obj = len(statement[2])
if subj > max_subj: max_subj = subj
if pred > max_pred: max_pred = pred
if obj > max_obj: max_obj = obj
print '%-*s | %-*s | %-*s' % (max_subj, 'subject',
max_pred, 'predicate',
max_obj, 'object',
)
print '-'*(max_subj + max_pred + max_obj + 6)
for statement in statements:
print '%-*s | %-*s | %-*s' % (max_subj, str(statement[0]),
max_pred, str(statement[1]),
max_obj, str(statement[2]),
)
return
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