本文整理汇总了Python中bigchaindb.Bigchain.block_election方法的典型用法代码示例。如果您正苦于以下问题：Python Bigchain.block_election方法的具体用法？Python Bigchain.block_election怎么用？Python Bigchain.block_election使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类bigchaindb.Bigchain的用法示例。
在下文中一共展示了Bigchain.block_election方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: __init__
# 需要导入模块: from bigchaindb import Bigchain [as 别名]
# 或者: from bigchaindb.Bigchain import block_election [as 别名]
class Election:
"""Election class."""
def __init__(self, events_queue=None):
self.bigchain = Bigchain()
self.events_queue = events_queue
def check_for_quorum(self, next_vote):
"""Checks if block has enough invalid votes to make a decision
Args:
next_vote: The next vote.
"""
try:
block_id = next_vote['vote']['voting_for_block']
node = next_vote['node_pubkey']
except KeyError:
return
next_block = self.bigchain.get_block(block_id)
result = self.bigchain.block_election(next_block)
self.handle_block_events(result, block_id)
if result['status'] == self.bigchain.BLOCK_INVALID:
return Block.from_dict(next_block)
# Log the result
if result['status'] != self.bigchain.BLOCK_UNDECIDED:
msg = 'node:%s block:%s status:%s' % \
(node, block_id, result['status'])
# Extra data can be accessed via the log formatter.
# See logging.dictConfig.
logger_results.debug(msg, extra={
'current_vote': next_vote,
'election_result': result,
})
def requeue_transactions(self, invalid_block):
"""Liquidates transactions from invalid blocks so they can be processed again
"""
logger.info('Rewriting %s transactions from invalid block %s',
len(invalid_block.transactions),
invalid_block.id)
for tx in invalid_block.transactions:
self.bigchain.write_transaction(tx)
return invalid_block
def handle_block_events(self, result, block_id):
if self.events_queue:
if result['status'] == self.bigchain.BLOCK_UNDECIDED:
return
elif result['status'] == self.bigchain.BLOCK_INVALID:
event_type = EventTypes.BLOCK_INVALID
elif result['status'] == self.bigchain.BLOCK_VALID:
event_type = EventTypes.BLOCK_VALID
event = Event(event_type, self.bigchain.get_block(block_id))
self.events_queue.put(event)