def load_required_nodes(owner, host, port, phases, node_id=str(uuid.uuid4())):
"""
manually insert network node into database
Args:
owner: node owner
host: node host
port: node port
phases: node phases provided
node_id: node uuid pk
"""
node = Node(node_id, owner, host, port, phases)
net_dao.insert_node(node)
print('inserted node into database ' + os.environ.get('BLOCKCHAIN_DB_NAME') + " " + node.node_id)
def load_required_nodes(owner, host, port, phases, node_id=str(uuid.uuid4())):
"""
manually insert network node into database
Args:
owner: node owner
host: node host
port: node port
phases: node phases provided
node_id: node uuid pk
"""
node = Node(node_id, owner, host, port, phases)
net_dao.insert_node(node)
print('inserted node into database ' +
os.environ.get('BLOCKCHAIN_DB_NAME') + " " + node.node_id)
def connect_subscription_node(self, subscription):
""" connect to subscription node """
node = net_dao.get(subscription["subscribed_node_id"])
# check if node is already in database and just not connected
if node:
subscription_node = Node(node["node_id"], node["node_owner"], node["host"], node["port"], node["phases"])
phase = int(node["phases"], 2)
if phase not in self.peer_dict:
self.peer_dict.setdefault(phase, [])
try:
self.connect_node(subscription_node, phase)
except:
logger().warning("Failed to connect to subscription node %s", node['node_id'])
else:
# insert new node into table and recursively call connect_subscription_node
node = Node(subscription['subscribed_node_id'], subscription['node_owner'], subscription['host'], subscription['port'], "00001")
net_dao.insert_node(node)
self.connect_subscription_node(subscription)
def refresh_registered(self):
""" - gathering latency and health for connected (registered) nodes
- gathering "peers of peers"
"""
logger().info('connection refresh')
if self.peer_dict.values():
for peer in self.connections:
if self.calc_latency(peer):
net_dao.update_con_activity(peer) # update node health
peers_discovered = peer.client.get_peers()
for thrift_node in peers_discovered: # converting to network node and updating database
converted_node = Node(thrift_node.node_id, thrift_node.owner, thrift_node.host,
str(thrift_node.port), bin(thrift_node.phases))
try:
net_dao.insert_node(converted_node)
except Exception as ex: # likely trying to add a dupe node
template = "An exception of type {0} occurred. Arguments:\n{1!r}"
message = template.format(type(ex).__name__, ex.args)
# logger().warning(message)
continue
def load_required_nodes():
node = Node('6625e727-f5b8-45ab-87c7-d113192ce168', 'TWDC', 'localhost',
'8083', '01000')
net_dao.insert_node(node)
print('inserted node into database ' +
os.environ.get('BLOCKCHAIN_DB_NAME') + " " + node.node_id)
def load_required_nodes():
node = Node(str(uuid.uuid4()), 'TWDC', 'localhost', '8084', '10000')
net_dao.insert_node(node)
print('inserted node into database ' +
os.environ.get('BLOCKCHAIN_DB_NAME') + " " + node.node_id)