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28 lines
1.0 KiB
Python
28 lines
1.0 KiB
Python
"""Bounded Neo4j adapter used only behind RelationshipService."""
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import asyncio
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from collections.abc import Sequence
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from typing import Any
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from neo4j import AsyncGraphDatabase
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from app.core.config import Settings
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class Neo4jGraphDriver:
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def __init__(self, settings: Settings, *, timeout_seconds: float = 2.0) -> None:
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self.settings = settings
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self.timeout_seconds = timeout_seconds
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self._driver: Any = None
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async def execute_query(self, query: str, **parameters: Any) -> Sequence[Any]:
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if self._driver is None:
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self._driver = AsyncGraphDatabase.driver(
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self.settings.neo4j_uri,
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auth=(self.settings.neo4j_username, self.settings.neo4j_password),
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)
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async with asyncio.timeout(self.timeout_seconds):
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async with self._driver.session(database=self.settings.neo4j_database) as session:
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result = await session.run(query, parameters)
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return [record.data() async for record in result]
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