simple_cluster module

Copyright (c) 2017 beyond-blockchain.org.

Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

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NetworkDomain([network, config, domain_id, ...])

Compose a simple core node cluster

class simple_cluster.NetworkDomain(network=None, config=None, domain_id=None, node_id=None, loglevel='all', logname=None)

Bases: bbc1.core.bbc_network.DomainBase

Compose a simple core node cluster

add_advertise_list(query_entry)

The peer node information will be advertised because ping is successful

Parameters:query_entry – Returns:

add_peer_node(node_id, ip4, addr_info)

(internal use) add node as a peer node

Parameters:

• node_id –
• ip4 –
• addr_info –

Returns:

advertise_domain_info()

alive_check()

broadcast_peerlist(query_entry)

Broadcast the peer_list to the neighbors

Parameters:query_entry – Returns:

domain_manager_loop()

maintain domain (e.g., updating peer list and topology)

Returns:

get_neighbor_nodes()

Return neighbor nodes (for broadcasting message)

Returns:

get_resource(query_entry)

print_peerlist()

Print peer list

Returns:

process_REQUEST_FIND_VALUE(msg)

process_REQUEST_STORE(msg)

process_RESPONSE_FIND_VALUE(msg)

process_message(ip4, from_addr, msg)

process received message

Parameters:

• ip4 – True (from IPv4) / False (from IPv6)
• from_addr – sender address and port (None if TCP)
• msg – the message body (already deserialized)

Returns:

purge_by_LRU()

(internal use) purge cache entry by Least Recently Used algorithm

Returns:

put_resource(asset_group_id, resource_id, resource_type, resource)

random_send(msg, count)

(internal use) send data to randomly selected nodes

Parameters:

• msg –
• count – number of nodes to send

Returns:

resend_resource(query_entry)

resolve_accommodating_core_node(query_entry)

Resolve which node the user connects to

Parameters:query_entry – Returns:

respond_find_node(target_id, nonce, asset_group_id=None, resource_id=None)

respond_find_value(target_id, nonce, asset_group_id=None, resource_id=None, resource=None, resource_type=None)

send_find_value(target_id, nonce, asset_group_id, resource_id, resource_type)

send_p2p_message(query_entry)

Send a message to another node

Parameters:query_entry – Returns:

send_peerlist()