chainsyncer/chainsyncer/store/rocksdb.py

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# standard imports
import uuid
import os
import logging
# external imports
from shep.store.rocksdb import RocksDbStoreFactory
# local imports
from chainsyncer.store import (
SyncItem,
SyncStore,
)
logg = logging.getLogger(__name__)
class RocksDbStoreAdder:
def __init__(self, factory, prefix):
self.factory = factory
self.prefix = prefix
def add(self, k):
path = os.path.join(self.prefix, k)
return self.factory.add(path)
def ls(self):
return self.factory.ls()
class SyncRocksDbStore(SyncStore):
def __init__(self, base_path, session_id=None, state_event_callback=None, filter_state_event_callback=None):
super(SyncRocksDbStore, self).__init__(base_path, session_id=session_id)
self.factory = RocksDbStoreFactory(self.session_path, binary=True)
prefix_factory = RocksDbStoreAdder(self.factory, 'sync')
self.setup_sync_state(prefix_factory, state_event_callback)
prefix_factory = RocksDbStoreAdder(self.factory, 'filter')
self.setup_filter_state(prefix_factory, filter_state_event_callback)
self.session_id = os.path.basename(self.session_path)
logg.info('session id {} resolved {} path {}'.format(session_id, self.session_id, self.session_path))
self.target_db = RocksDbStoreAdder(self.factory, '.stat').add('target')
def get_target(self):
v = self.target_db.get('target')
if v != None:
self.target = int(v)
def set_target(self, v):
self.target_db.put('target', str(v))
self.target = v
def stop(self, item):
if item != None:
super(SyncRocksDbStore, self).stop(item)
self.factory.close()