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# $Id$
import rpki.resource_set, os, yaml
class allocation(object):
parent = None
def __init__(self, yaml, parent = None):
self.name = yaml["name"]
self.parent = parent
self.kids = [allocation(k, 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 flatten(self):
"""Return a list of self and kids."""
ret = [self]
for kid in self.kids:
ret.extend(kid.flatten())
return ret
def is_leaf(self):
return not self.kids
def is_root(self):
return self.parent is None
def __str__(self):
return "%s\n ASN: %s\n IPv4: %s\n IPv6: %s\n Kids: %s\n" \
% (self.name,
self.resources.as, self.resources.v4, self.resources.v6,
", ".join(k.name for k in self.kids))
f = open("testdb2.yaml")
y = yaml.safe_load(f)
f.close()
root = allocation(y)
root.closure()
for i in root.flatten():
print i
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