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# $Id$
import rpki.resource_set, os, yaml
class allocation_db(list):
def __init__(self, yaml):
allocation(yaml, self).closure()
for i, a in zip(range(len(self)), self):
a.number = i
@classmethod
def from_file(cls, filename):
return cls(yaml.safe_load(open(filename)))
def dict_iter(self):
for a in self:
yield a.make_dict()
class allocation(object):
parent = None
def __init__(self, yaml, db, parent = None):
db.append(self)
self.name = yaml["name"]
self.parent = parent
self.kids = [allocation(k, db, self) for k in yaml.get("kids", ())]
self.base = rpki.resource_set.resource_bag(
as = rpki.resource_set.resource_set_as(yaml.get("asn")),
v4 = rpki.resource_set.resource_set_ipv4(yaml.get("ipv4")),
v6 = rpki.resource_set.resource_set_ipv6(yaml.get("ipv6")))
def closure(self):
"""Compute the transitive resource closure for one resource attribute."""
resources = self.base
for kid in self.kids:
resources = resources.union(kid.closure())
self.resources = resources
return resources
def make_dict(self):
return { "name" : self.name,
"parent" : None if self.parent is None else self.parent.name,
"kids" : [k.name for k in self.kids],
"as" : self.resources.as,
"v4" : self.resources.v4,
"v6" : self.resources.v6,
"number" : self.number }
def is_leaf(self):
return not self.kids
def is_root(self):
return self.parent is None
if __name__ == "__main__":
for d in allocation_db.from_file("testdb2.yaml").dict_iter():
print '''
Name: %(name)s
ASN: %(as)s
IPv4: %(v4)s
IPv6: %(v6)s
Rent: %(parent)s
Kids: %(kids)s
Num: %(number)s
''' % d
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