def __listener(self, veto, key, new_value):
if veto:
return False
if key != self.__tag:
return
if new_value is None or not new_value.is_string():
new_terms = set([])
else:
new_terms = set(logic.parse_clauselist(new_value.as_string()))
discards = {}
nodes = {}
for (v, s) in self.__nodes.iteritems():
if v in new_terms:
new_terms.remove(v)
nodes[v] = s
else:
discards[v] = s
self.__nodes = None
while discards:
(v, s) = discards.popitem()
self.__retracted(v, s)
v = None
s = None
for v in new_terms:
s = self.__asserted(v)
nodes[v] = s
self.__nodes = nodes
def __getsig(snap,cache,agent):
address = agent.get_address()
root = agent.get_root()
if agent.get_type()!=0 or not root.get_data().is_dict():
return None
node = Node(root,address,())
srcs = set()
agent_name = __getname(snap,cache,address)
for atom in node.iter_tree():
meta = atom.get_data()
name = atom.get_name()
if not meta.is_dict() or not name:
continue
conn = meta.as_dict_lookup('master')
if not conn.is_string():
continue
pathstr = '.'.join([str(p) for p in atom.path])
conn_term = logic.parse_clauselist(conn.as_string())
for c in conn_term:
src = c.args[2]
srcs.add('%s: %s' % (pathstr,__getname(snap,cache,src)))
l = list(srcs)
l.sort()
return agent_name+' '+' '.join(l)
def rpc_cancel_action(self,arg):
action = logic.parse_clauselist(arg)
result = deferred.cancel_action(self,action)
yield result
if not result.status():
yield async.Coroutine.failure(*result.args(),**result.kwds())
yield async.Coroutine.success()
def property_change(self, key, new_value, delegate):
if key != self.__tag:
return
if new_value is None or not new_value.is_string():
new_terms = []
else:
new_terms = logic.parse_clauselist(new_value.as_string())
discards = {}
nodes = {}
new_terms = set([self.__canonicalise(v) for v in new_terms])
for (v, s) in self.__nodes.iteritems():
if v in new_terms:
new_terms.remove(v)
nodes[v] = s
else:
discards[v] = s
self.__nodes = None
while discards:
(v, s) = discards.popitem()
self.__retracted(v, s, False)
v = None
s = None
for v in new_terms:
s = self.__asserted(v, delegate)
nodes[v] = s
self.__nodes = nodes
def verb2_19_unconnect_from(self, subject, t, f):
"""
connect([un],global_unconnect_from,role(None,[concrete]),role(from,[concrete,singular]))
"""
f = self.database.to_database_id(action.concrete_object(f))
for o in action.concrete_objects(t):
t2 = self.database.to_database_id(o)
print 'un connect', t2, 'from', f
tproxy = self.database.find_item(t2)
objs = self.database.search_any_key(
'W', T('unconnect_from_list', t2, f, V('W')))
for (s, m) in objs:
sproxy = self.database.find_item(s)
cnxs = logic.parse_clauselist(sproxy.get_master())
for cnx in cnxs:
if logic.is_pred_arity(cnx, 'conn',
5) and self.database.to_database_id(
cnx.args[2]) == m:
print 'disconnect', cnx, 'from', s
yield interpreter.RpcAdapter(
sproxy.invoke_rpc('disconnect',
logic.render_term(cnx)))
yield async .Coroutine.success()
def __build_ccache_atom(self, atom):
tgt = atom.id()
conn = atom.get_node(255, 2)
if conn is None: return
conn_term = logic.parse_clauselist(conn.get_string_default(''))
for c in conn_term:
src = c.args[2]
self.__ccache.setdefault(src, []).append(tgt)
def get_instances(self, id):
print 'Backend - get_instances: id=', id
ords = set([])
r = rpc.invoke_rpc(self.__database.to_usable_id(id), 'listinstances',
'')
yield r
if not r.status():
yield async .Coroutine.failure('get_instances failed')
result = r.args()[0]
if result != 'None':
ordinals = logic.parse_clauselist(result)
for o in ordinals:
ords.add(str(o))
self.__frontend.instances_updated(ords)
yield async .Coroutine.success()
def __getdot(snap, cache, agent):
address = agent.get_address()
root = agent.get_root()
if agent.get_type() != 0 or not root.get_data().is_string():
return []
node = Node(root, address, ())
dot = []
agent_name = __getfullname(snap, cache, address)
dot_node = '"%s" [ label="%s" ]' % (address, agent_name)
dot.append(dot_node)
for atom in node.walk():
tgt = atom.id()
name = atom.get_node(255, 8)
pathstr = '.'.join([str(p) for p in atom.path])
if not name:
continue
name = name.get_data()
if not name.is_string() or not name.as_string():
name = 'talker'
conn = atom.get_node(255, 2)
if not conn:
continue
if not conn.get_data().is_string():
continue
conn_term = logic.parse_clauselist(conn.get_string())
for c in conn_term:
src = c.args[2]
(src_addr, src_name) = __getportname(snap, src)
edge = '"%s" -> "%s" [label = "%s->%s"]' % (src_addr, address,
src_name, name)
dot.append(edge)
return dot
def __substitute_connection(self, tgt, old_id, new_id):
(s, p) = paths.breakid_list(tgt)
root = self.root(s)
atom = root.get_node(*p)
if atom is None: return
conn = atom.get_node(255, 2)
if conn is None: return
old_conn = logic.parse_clauselist(conn.get_string_default(''))
new_conn = []
for c in old_conn:
if c.args[2] == old_id:
new_conn.append(
logic.make_term(c.pred, c.args[0], c.args[1], new_id,
c.args[3]))
else:
new_conn.append(c)
conn.set_string(logic.render_termlist(new_conn))
def phase2_1_0_4(self, tools, address):
print 'upgrading host', address
root = tools.get_root(address)
key_input = root.get_node(6, 3)
print 'disconnecting key input', key_input.id()
conn = key_input.get_master()
if not conn: return
for c in conn:
print 'connection', c
upstream_addr, upstream_path = paths.breakid_list(c)
upstream_root = tools.get_root(upstream_addr)
if not upstream_root: continue
upstream = upstream_root.get_node(*upstream_path)
upstream_slaves = logic.parse_clauselist(
upstream.get_meta_string('slave'))
print 'old upstream slaves', upstream_slaves
upstream_slaves.remove(key_input.id())
print 'new upstream slaves', upstream_slaves
upstream.set_meta_string('slave',
logic.render_termlist(upstream_slaves))
def __getsig(snap, cache, agent):
address = agent.get_address()
root = agent.get_root()
if agent.get_type() != 0 or not root.get_data().is_string():
return None
node = Node(root, address, ())
srcs = set()
agent_name = __getname(snap, cache, address)
for atom in node.walk():
tgt = atom.id()
name = atom.get_node(255, 8)
pathstr = '.'.join([str(p) for p in atom.path])
if not name:
continue
name = name.get_data()
if not name.is_string() or not name.as_string():
continue
conn = atom.get_node(255, 2)
if not conn:
continue
if not conn.get_data().is_string():
continue
conn_term = logic.parse_clauselist(conn.get_string())
for c in conn_term:
src = c.args[2]
srcs.add('%s: %s' % (pathstr, __getname(snap, cache, src)))
l = list(srcs)
l.sort()
return agent_name + ' ' + ' '.join(l)
