74 lines
2.1 KiB
Python
74 lines
2.1 KiB
Python
# jarvis_mcp/client.py
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import asyncio
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from mcp import ClientSession
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from mcp.client.streamable_http import streamablehttp_client
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from util.logger import get_logger
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logger = get_logger("MCP")
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class MCPClient:
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def __init__(self, url: str):
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# Entferne eventuelle doppelte /mcp und füge korrekt hinzu
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base = url.rstrip('/')
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self.session = None
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self._client_context = None
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async def connect(self):
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if self.session is not None:
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return
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logger.info(f"Verbinde mit OpenHAB MCP: {self.url}")
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try:
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self._client_context = streamablehttp_client(
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self.url,
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terminate_on_close=True
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)
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streams = await self._client_context.__aenter__()
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if isinstance(streams, tuple) and len(streams) == 3:
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read, write, _ = streams
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else:
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read, write = streams
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self.session = ClientSession(read, write)
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await asyncio.wait_for(self.session.initialize(), timeout=10.0)
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logger.info("✅ OpenHAB MCP Verbindung erfolgreich hergestellt")
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except asyncio.TimeoutError:
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logger.error("❌ Timeout beim Verbinden mit MCP-Server")
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raise
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except Exception as e:
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logger.error(f"❌ MCP Connect Fehler: {e}")
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raise
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async def list_tools(self):
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await self.connect()
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return await self.session.list_tools()
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async def call_tool(self, name: str, arguments: dict):
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await self.connect()
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return await self.session.call_tool(name, arguments)
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async def close(self):
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if self.session:
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try:
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if hasattr(self.session, "close"):
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await self.session.close()
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except Exception:
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pass
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if self._client_context:
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try:
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await self._client_context.__aexit__(None, None, None)
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except Exception:
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pass
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self.session = None
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self._client_context = None |