def initialize_block(self, previous_id):
request = (
consensus_pb2.ConsensusInitializeBlockRequest(
previous_id=previous_id)
if previous_id
else consensus_pb2.ConsensusInitializeBlockRequest()
)
response_type = consensus_pb2.ConsensusInitializeBlockResponse
response = self._send(
request=request,
message_type=Message.CONSENSUS_INITIALIZE_BLOCK_REQUEST,
response_type=response_type)
status = response.status
if status == response_type.INVALID_STATE:
raise exceptions.InvalidState(
'Cannot initialize block in current state')
if status == response_type.UNKNOWN_BLOCK:
raise exceptions.UnknownBlock()
if status != response_type.OK:
raise exceptions.ReceiveError(
'Failed with status {}'.format(status))
def finalize_block(self, data):
request = consensus_pb2.ConsensusFinalizeBlockRequest(data=data)
response_type = consensus_pb2.ConsensusFinalizeBlockResponse
response = self._send(
request=request,
message_type=Message.CONSENSUS_FINALIZE_BLOCK_REQUEST,
response_type=response_type)
status = response.status
if status == response_type.INVALID_STATE:
raise exceptions.InvalidState(
'Cannot finalize block in current state')
if status == response_type.BLOCK_NOT_READY:
raise exceptions.BLOCK_NOT_READY(
'Block not ready to be finalized')
if status != response_type.OK:
raise exceptions.ReceiveError(
'Failed with status {}'.format(status))
return response.block_id
def cancel_block(self):
request = consensus_pb2.ConsensusCancelBlockRequest()
response_type = consensus_pb2.ConsensusCancelBlockResponse
response = self._send(
request=request,
message_type=Message.CONSENSUS_CANCEL_BLOCK_REQUEST,
response_type=response_type)
status = response.status
if status == response_type.INVALID_STATE:
raise exceptions.InvalidState(
'Cannot cancel block in current state')
if status != response_type.OK:
raise exceptions.ReceiveError(
'Failed with status {}'.format(status))
def summarize_block(self):
request = consensus_pb2.ConsensusSummarizeBlockRequest()
response_type = consensus_pb2.ConsensusSummarizeBlockResponse
response = self._send(
request=request,
message_type=Message.CONSENSUS_SUMMARIZE_BLOCK_REQUEST,
response_type=response_type)
status = response.status
if status == response_type.INVALID_STATE:
raise exceptions.InvalidState(
'Cannot summarize block in current state')
if status == response_type.BLOCK_NOT_READY:
raise exceptions.BlockNotReady('Block not ready to be summarize')
if status != response_type.OK:
raise exceptions.ReceiveError(
'Failed with status {}'.format(status))
return response.summary
