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

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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)[source]

Bases: bbc1.core.bbc_network.DomainBase

Compose a simple core node cluster

add_peer_node(node_id, ip4, addr_info)[source]

(internal use) add node as a peer node

Parameters:
  • node_id –
  • ip4 –
  • addr_info –
Returns:
advertise_domain_info()[source]
alive_check()[source]
domain_manager_loop()[source]

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

Returns:
get_neighbor_nodes()[source]

Return neighbor nodes (for broadcasting message)

Returns:
get_resource(query_entry)[source]
print_peerlist()[source]

Print peer list

Returns:
process_REQUEST_FIND_VALUE(msg)[source]
process_REQUEST_STORE(msg)[source]
process_RESPONSE_FIND_VALUE(msg)[source]
process_message(ip4, from_addr, msg)[source]

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()[source]

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

Returns:
put_resource(asset_group_id, resource_id, resource_type, resource)[source]
random_send(msg, count)[source]

(internal use) send data to randomly selected nodes

Parameters:
  • msg –
  • count – number of nodes to send
Returns:
resend_resource(query_entry)[source]
resolve_accommodating_core_node(query_entry)[source]

Resolve which node the user connects to

Parameters:query_entry –
Returns:
respond_find_node(target_id, nonce, asset_group_id=None, resource_id=None)[source]
respond_find_value(target_id, nonce, asset_group_id=None, resource_id=None, resource=None, resource_type=None)[source]
send_find_value(target_id, nonce, asset_group_id, resource_id, resource_type)[source]
send_p2p_message(query_entry)[source]

Send a message to another node

Parameters:query_entry –
Returns:
send_peerlist(query_entry)[source]