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104 lines
3.2 KiB
Python
104 lines
3.2 KiB
Python
# Copyright © 2020 Interplanetary Database Association e.V.,
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# Planetmint and IPDB software contributors.
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# SPDX-License-Identifier: (Apache-2.0 AND CC-BY-4.0)
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# Code is Apache-2.0 and docs are CC-BY-4.0
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import logging
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import tarantool
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from planetmint.config import Config
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from planetmint.transactions.common.exceptions import ConfigurationError
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from planetmint.utils import Lazy
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from planetmint.backend.connection import Connection
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logger = logging.getLogger(__name__)
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class TarantoolDBConnection(Connection):
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def __init__(
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self,
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host: str = "localhost",
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port: int = 3303,
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user: str = None,
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password: str = None,
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**kwargs,
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):
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try:
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super().__init__(**kwargs)
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self.host = host
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self.port = port
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# TODO add user support later on
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self.init_path = Config().get()["database"]["init_config"]["absolute_path"]
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self.drop_path = Config().get()["database"]["drop_config"]["absolute_path"]
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self.SPACE_NAMES = [
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"abci_chains",
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"assets",
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"blocks",
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"blocks_tx",
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"elections",
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"meta_data",
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"pre_commits",
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"validators",
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"transactions",
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"inputs",
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"outputs",
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"keys",
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]
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except tarantool.error.NetworkError as network_err:
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logger.info("Host cant be reached")
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raise network_err
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except ConfigurationError:
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logger.info("Exception in _connect(): {}")
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raise ConfigurationError
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def query(self):
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return Lazy()
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def _file_content_to_bytes(self, path):
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with open(path, "r") as f:
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execute = f.readlines()
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f.close()
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return "".join(execute).encode()
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def _connect(self):
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return tarantool.connect(host=self.host, port=self.port)
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def get_space(self, space_name: str):
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return self.conn.space(space_name)
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def space(self, space_name: str):
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return self.query().space(space_name)
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def run(self, query, only_data=True):
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try:
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return query.run(self.conn).data if only_data else query.run(self.conn)
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except tarantool.error.OperationalError as op_error:
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raise op_error
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except tarantool.error.NetworkError as net_error:
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raise net_error
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def get_connection(self):
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return self.conn
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def drop_database(self):
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db_config = Config().get()["database"]
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cmd_resp = self.run_command(command=self.drop_path, config=db_config) # noqa: F841
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def init_database(self):
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db_config = Config().get()["database"]
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cmd_resp = self.run_command(command=self.init_path, config=db_config) # noqa: F841
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def run_command(self, command: str, config: dict):
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from subprocess import run
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print(f" commands: {command}")
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host_port = "%s:%s" % (self.host, self.port)
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execute_cmd = self._file_content_to_bytes(path=command)
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output = run(
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["tarantoolctl", "connect", host_port],
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input=execute_cmd,
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capture_output=True,
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).stderr
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output = output.decode()
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return output
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