bigchaindb/corechaindb/migrations/chain_migration_election.py
2024-07-04 13:34:32 -03:00

49 lines
1.6 KiB
Python

import json
from corechaindb.common.schema import TX_SCHEMA_CHAIN_MIGRATION_ELECTION
from corechaindb.elections.election import Election
class ChainMigrationElection(Election):
OPERATION = 'CHAIN_MIGRATION_ELECTION'
CREATE = OPERATION
ALLOWED_OPERATIONS = (OPERATION,)
TX_SCHEMA_CUSTOM = TX_SCHEMA_CHAIN_MIGRATION_ELECTION
def has_concluded(self, corechaindb, *args, **kwargs):
chain = corechaindb.get_latest_abci_chain()
if chain is not None and not chain['is_synced']:
# do not conclude the migration election if
# there is another migration in progress
return False
return super().has_concluded(corechaindb, *args, **kwargs)
def on_approval(self, bigchain, *args, **kwargs):
bigchain.migrate_abci_chain()
def show_election(self, bigchain):
output = super().show_election(bigchain)
chain = bigchain.get_latest_abci_chain()
if chain is None or chain['is_synced']:
return output
output += f'\nchain_id={chain["chain_id"]}'
block = bigchain.get_latest_block()
output += f'\napp_hash={block["app_hash"]}'
validators = [
{
'pub_key': {
'type': 'tendermint/PubKeyEd25519',
'value': k,
},
'power': v,
} for k, v in self.get_validators(bigchain).items()
]
output += f'\nvalidators={json.dumps(validators, indent=4)}'
return output
def on_rollback(self, bigchain, new_height):
bigchain.delete_abci_chain(new_height)