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processor_distributor.py
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processor_distributor.py
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import asyncio
import json
from collections import defaultdict
from typing import Union
from eth_utils.address import to_checksum_address
from httpx import AsyncClient
from httpx import AsyncHTTPTransport
from httpx import Limits
from httpx import Timeout
from web3 import Web3
import time
from snapshotter.utils.models.data_models import SnapshotterReportData
from snapshotter.utils.models.data_models import SnapshotterReportState
from snapshotter.settings.config import projects_config
from snapshotter.settings.config import settings
from snapshotter.utils.data_utils import get_snapshot_submision_window
from snapshotter.utils.data_utils import get_source_chain_epoch_size
from snapshotter.utils.data_utils import get_source_chain_id
from snapshotter.utils.default_logger import logger
from snapshotter.utils.file_utils import read_json_file
from snapshotter.utils.models.data_models import DailyTaskCompletedEvent
from snapshotter.utils.models.data_models import DayStartedEvent
from snapshotter.utils.models.data_models import EpochReleasedEvent
from snapshotter.utils.models.data_models import SnapshotFinalizedEvent
from snapshotter.utils.models.data_models import SnapshottersUpdatedEvent
from snapshotter.utils.models.message_models import EpochBase
from snapshotter.utils.models.message_models import SnapshotProcessMessage
from snapshotter.utils.rpc import RpcHelper
from snapshotter.utils.snapshot_worker import SnapshotAsyncWorker
from snapshotter.utils.snapshot_utils import get_eth_price_usd
from snapshotter.utils.callback_helpers import send_failure_notifications_async
from snapshotter.utils.models.data_models import SnapshotterIssue
from snapshotter.utils.models.data_models import SnapshotterStatus
class ProcessorDistributor:
_anchor_rpc_helper: RpcHelper
_async_transport: AsyncHTTPTransport
_client: AsyncClient
def __init__(self):
"""
Initialize the ProcessorDistributor object.
Args:
name (str): The name of the ProcessorDistributor.
**kwargs: Additional keyword arguments.
Attributes:
_rpc_helper: The RPC helper object.
_source_chain_id: The source chain ID.
_projects_list: The list of projects.
_initialized (bool): Flag indicating if the ProcessorDistributor has been initialized.
_upcoming_project_changes (defaultdict): Dictionary of upcoming project changes.
_project_type_config_mapping (dict): Dictionary mapping project types to their configurations.
"""
self._rpc_helper = None
self._source_chain_id = None
self._projects_list = None
self._initialized = False
self._upcoming_project_changes = defaultdict(list)
self._project_type_config_mapping = dict()
for project_config in projects_config:
self._project_type_config_mapping[project_config.project_type] = project_config
self._snapshotter_enabled = True
self._snapshotter_active = True
self.snapshot_worker = SnapshotAsyncWorker()
async def _init_rpc_helper(self):
"""
Initializes the RpcHelper instance if it is not already initialized.
"""
if not self._rpc_helper:
self._rpc_helper = RpcHelper()
self._anchor_rpc_helper = RpcHelper(rpc_settings=settings.anchor_chain_rpc)
async def _init_httpx_client(self):
"""
Initializes the HTTPX client with the specified settings.
"""
self._async_transport = AsyncHTTPTransport(
limits=Limits(
max_connections=100,
max_keepalive_connections=50,
keepalive_expiry=None,
),
)
self._client = AsyncClient(
base_url=settings.reporting.service_url,
timeout=Timeout(timeout=5.0),
follow_redirects=False,
transport=self._async_transport,
)
async def init(self):
"""
Initializes the worker by initializing the RPC helper, loading project metadata.
"""
if not self._initialized:
self._logger = logger.bind(
module='ProcessDistributor',
)
self._anchor_rpc_helper = RpcHelper(
rpc_settings=settings.anchor_chain_rpc,
)
protocol_abi = read_json_file(settings.protocol_state.abi, self._logger)
self._protocol_state_contract = self._anchor_rpc_helper.get_current_node()['web3_client'].eth.contract(
address=to_checksum_address(
settings.protocol_state.address,
),
abi=protocol_abi,
)
try:
source_block_time = self._protocol_state_contract.functions.SOURCE_CHAIN_BLOCK_TIME(Web3.to_checksum_address(settings.data_market)).call()
except Exception as e:
self._logger.error(
'Exception in querying protocol state for source chain block time: {}',
e,
)
else:
self._source_chain_block_time = source_block_time / 10 ** 4
self._logger.debug('Set source chain block time to {}', self._source_chain_block_time)
try:
epoch_size = self._protocol_state_contract.functions.EPOCH_SIZE(Web3.to_checksum_address(settings.data_market)).call()
except Exception as e:
self._logger.error(
'Exception in querying protocol state for epoch size: {}',
e,
)
else:
self._epoch_size = epoch_size
try:
snapshotter_address = self._protocol_state_contract.functions.slotSnapshotterMapping(
settings.slot_id,
).call()
if snapshotter_address != to_checksum_address(settings.instance_id):
self._logger.error('Signer Account is not the one configured in slot, exiting!')
exit(0)
except Exception as e:
self._logger.error(
'Exception in querying protocol state for snapshotter status: {}',
e,
)
exit(0)
try:
self._current_day = self._protocol_state_contract.functions.dayCounter(Web3.to_checksum_address(settings.data_market)).call()
task_completion_status = self._protocol_state_contract.functions.checkSlotTaskStatusForDay(
Web3.to_checksum_address(settings.data_market),
settings.slot_id,
self._current_day,
).call()
if task_completion_status:
self._snapshotter_active = False
else:
self._snapshotter_active = True
except Exception as e:
self._logger.error(
'Exception in querying protocol state for user task status for day {}',
e,
)
self._snapshotter_active = False
self._logger.info('Snapshotter active: {}', self._snapshotter_active)
await self._init_httpx_client()
await self._init_rpc_helper()
await self._load_projects_metadata()
await self.snapshot_worker.init_worker()
self._initialized = True
async def _load_projects_metadata(self):
"""
Loads the metadata for the projects, including the source chain ID, the list of projects, and the submission window
for snapshots. It also updates the project type configuration mapping with the relevant projects.
"""
if not self._projects_list:
with open(settings.protocol_state.abi, 'r') as f:
abi_dict = json.load(f)
protocol_state_contract = self._anchor_rpc_helper.get_current_node()['web3_client'].eth.contract(
address=Web3.to_checksum_address(
settings.protocol_state.address,
),
abi=abi_dict,
)
self._source_chain_epoch_size = await get_source_chain_epoch_size(
rpc_helper=self._anchor_rpc_helper,
state_contract_obj=protocol_state_contract,
data_market=Web3.to_checksum_address(settings.data_market),
)
self._source_chain_id = await get_source_chain_id(
rpc_helper=self._anchor_rpc_helper,
state_contract_obj=protocol_state_contract,
data_market=Web3.to_checksum_address(settings.data_market),
)
submission_window = await get_snapshot_submision_window(
rpc_helper=self._anchor_rpc_helper,
state_contract_obj=protocol_state_contract,
data_market=Web3.to_checksum_address(settings.data_market),
)
self._submission_window = submission_window
async def _epoch_release_processor(self, message: EpochReleasedEvent):
"""
This method is called when an epoch is released. It start the snapshotting process for the epoch.
Args:
message (EpochBase): The message containing the epoch information.
"""
epoch = EpochBase(
begin=message.begin,
end=message.end,
epochId=message.epochId,
day=self._current_day,
)
try:
eth_price_dict = await get_eth_price_usd(
message.begin,
message.end,
self._rpc_helper,
)
except Exception as e:
self._logger.error(
'Exception in getting eth price: {}',
e,
)
self.snapshot_worker.status.totalMissedSubmissions += 1
self.snapshot_worker.status.consecutiveMissedSubmissions += 1
notification_message = SnapshotterReportData(
snapshotterIssue=SnapshotterIssue(
instanceID=settings.instance_id,
issueType=SnapshotterReportState.MISSED_SNAPSHOT.value,
projectID='ETH_PRICE_LOAD',
epochId=str(message.epochId),
timeOfReporting=str(time.time()),
extra=json.dumps({'issueDetails': f'Error : {e}'}),
),
snapshotterStatus=self.snapshot_worker.status,
)
await send_failure_notifications_async(
client=self._client, message=notification_message,
)
return
for project_type, _ in self._project_type_config_mapping.items():
# release for snapshotting
asyncio.ensure_future(
self._distribute_callbacks_snapshotting(
project_type, epoch, eth_price_dict,
),
)
async def _distribute_callbacks_snapshotting(self, project_type: str, epoch: EpochBase, eth_price_dict: dict):
"""
Distributes callbacks for snapshotting to the appropriate snapshotters based on the project type and epoch.
Args:
project_type (str): The type of project.
epoch (EpochBase): The epoch to snapshot.
Returns:
None
"""
process_unit = SnapshotProcessMessage(
begin=epoch.begin,
end=epoch.end,
epochId=epoch.epochId,
day=epoch.day,
)
asyncio.ensure_future(
self.snapshot_worker.process_task(process_unit, project_type, eth_price_dict),
)
async def process_event(
self, type_: str, event: Union[
EpochReleasedEvent,
SnapshotFinalizedEvent,
SnapshottersUpdatedEvent,
DayStartedEvent,
DailyTaskCompletedEvent,
],
):
"""
Process an event based on its type.
Args:
type_ (str): The type of the event.
event (Union[EpochReleasedEvent, SnapshotFinalizedEvent, SnapshottersUpdatedEvent,
DayStartedEvent, DailyTaskCompletedEvent]): The event object.
Returns:
None
"""
if type_ == 'EpochReleased':
return await self._epoch_release_processor(event)
elif type_ == 'DayStartedEvent':
self._logger.info('Day started event received, setting active status to True')
self._snapshotter_active = True
self._current_day += 1
elif type_ == 'DailyTaskCompletedEvent':
self._logger.info('Daily task completed event received, setting active status to False')
self._snapshotter_active = False
else:
self._logger.error(
(
'Unknown message type {} received'
),
type_,
)