feat(memory): add provider interface (#72)
This commit is contained in:
@@ -7,6 +7,7 @@ import os
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from .memory import MemoryManager
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from .memory_vector import MemoryVectorStore
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from src.memory_provider import MemoryRecord, NativeMemoryProvider
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@dataclass
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@@ -42,6 +43,10 @@ class MemoryService:
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self.vector_store = MemoryVectorStore(data_dir) if os.path.exists(
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os.path.join(data_dir, "memory_vectors")
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) else None
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self.provider = NativeMemoryProvider(self.manager, self.vector_store)
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def _sync_provider(self) -> None:
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self.provider.memory_vector = self.vector_store
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@staticmethod
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def _to_memory(entry: Dict[str, Any], metadata: Optional[Dict[str, Any]] = None) -> Memory:
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@@ -53,6 +58,19 @@ class MemoryService:
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metadata=metadata or {},
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)
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@staticmethod
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def _record_to_memory(record: MemoryRecord, metadata: Optional[Dict[str, Any]] = None) -> Memory:
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merged_metadata = dict(record.metadata)
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if metadata:
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merged_metadata.update(metadata)
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return Memory(
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id=record.id,
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text=record.text,
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timestamp=record.timestamp,
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session_id=record.session_id,
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metadata=merged_metadata,
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)
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async def remember(self, text: str, session_id: Optional[str] = None) -> Memory:
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"""
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Store a new memory.
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@@ -64,19 +82,9 @@ class MemoryService:
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Returns:
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Created Memory object
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"""
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entry = self.manager.add_entry(text)
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if session_id:
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entry["session_id"] = session_id
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memories = self.manager.load_all()
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memories.append(entry)
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self.manager.save(memories)
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# Also add to vector store if available
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if self.vector_store and self.vector_store.healthy:
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self.vector_store.add(entry["id"], entry["text"])
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return self._to_memory(entry)
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self._sync_provider()
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record = await self.provider.remember(text, session_id=session_id)
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return self._record_to_memory(record)
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async def recall(self, query: str, top_k: int = 5) -> MemorySearchResult:
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"""
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@@ -89,28 +97,20 @@ class MemoryService:
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Returns:
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MemorySearchResult with matching memories
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"""
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# Try vector search first
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all_memories = self.manager.load_all()
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by_id = {m.get("id"): m for m in all_memories}
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if self.vector_store and self.vector_store.healthy:
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results = self.vector_store.search(query, k=top_k)
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found = []
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for result in results:
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entry = by_id.get(result.get("memory_id"))
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if entry:
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found.append(self._to_memory(entry, metadata={"score": result.get("score")}))
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if found:
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return MemorySearchResult(memories=found, query=query, total=len(found))
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# Fallback to keyword search
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results = self.manager.get_relevant_memories(query, all_memories, max_items=top_k)
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memories = [self._to_memory(m) for m in results]
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self._sync_provider()
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results = await self.provider.recall(query, top_k=top_k)
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memories = [
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self._record_to_memory(hit.memory, metadata={"score": hit.score})
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if hit.score is not None
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else self._record_to_memory(hit.memory)
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for hit in results
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]
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return MemorySearchResult(memories=memories, query=query, total=len(memories))
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def get_all(self, limit: int = 100) -> List[Memory]:
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"""Get all memories."""
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memories = self.manager.load_all()[:limit]
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return [self._to_memory(m) for m in memories]
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records = self.manager.load_all()[:limit]
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return [self._to_memory(m) for m in records]
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def delete(self, memory_id: str) -> bool:
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"""Delete a memory by ID."""
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@@ -9,6 +9,7 @@ from src.constants import (
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SESSIONS_FILE, DEFAULT_HOST, OPENAI_API_KEY
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)
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from src.memory import MemoryManager
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from src.memory_provider import MemoryProviderRegistry, NativeMemoryProvider
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from services.memory.skills import SkillsManager
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from core.session_manager import SessionManager
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from core.models import set_session_manager
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@@ -73,6 +74,10 @@ def initialize_managers(base_dir: str, rag_manager=None) -> Dict[str, Any]:
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logger.warning(f"MemoryVectorStore DEGRADED: {e}")
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memory_vector = None
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memory_provider_registry = MemoryProviderRegistry([
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NativeMemoryProvider(memory_manager, memory_vector),
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])
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# Initialize processors
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chat_processor = ChatProcessor(memory_manager, personal_docs_manager, memory_vector=memory_vector, skills_manager=skills_manager)
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research_handler = ResearchHandler()
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@@ -99,6 +104,7 @@ def initialize_managers(base_dir: str, rag_manager=None) -> Dict[str, Any]:
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return {
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"memory_manager": memory_manager,
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"memory_vector": memory_vector,
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"memory_provider_registry": memory_provider_registry,
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"skills_manager": skills_manager,
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"session_manager": session_manager,
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"upload_handler": upload_handler,
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320
src/memory_provider.py
Normal file
320
src/memory_provider.py
Normal file
@@ -0,0 +1,320 @@
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"""Memory provider interfaces for native and external memory systems."""
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from __future__ import annotations
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from abc import ABC, abstractmethod
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from dataclasses import dataclass, field
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from typing import Any, Dict, Iterable, List, Optional
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@dataclass
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class MemoryRecord:
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"""Provider-neutral memory entry."""
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id: str
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text: str
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timestamp: int = 0
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category: str = "fact"
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source: str = "unknown"
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owner: Optional[str] = None
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session_id: Optional[str] = None
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metadata: Dict[str, Any] = field(default_factory=dict)
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@dataclass
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class MemorySearchHit:
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"""A memory returned by provider recall."""
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memory: MemoryRecord
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provider_id: str
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score: Optional[float] = None
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class MemoryProvider(ABC):
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"""Base contract for Odysseus memory providers.
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The native memory provider should always be available. External providers
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can add recall/write behavior and their own tools without replacing the
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built-in local memory baseline.
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"""
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provider_id = "unknown"
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display_name = "Unknown"
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enabled = True
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async def initialize(self) -> None:
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"""Prepare provider resources before use."""
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async def shutdown(self) -> None:
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"""Release provider resources."""
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@abstractmethod
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async def remember(
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self,
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text: str,
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*,
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owner: Optional[str] = None,
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session_id: Optional[str] = None,
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category: str = "fact",
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source: str = "user",
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metadata: Optional[Dict[str, Any]] = None,
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) -> MemoryRecord:
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"""Store a memory and return the stored record."""
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@abstractmethod
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async def recall(
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self,
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query: str,
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*,
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owner: Optional[str] = None,
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top_k: int = 5,
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) -> List[MemorySearchHit]:
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"""Return provider memories relevant to the query."""
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@abstractmethod
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async def list_memories(
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self,
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*,
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owner: Optional[str] = None,
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limit: int = 100,
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) -> List[MemoryRecord]:
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"""List memories visible to the owner."""
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@abstractmethod
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async def delete(self, memory_id: str, *, owner: Optional[str] = None) -> bool:
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"""Delete a memory by ID when allowed by the provider."""
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def get_tool_schemas(self) -> List[Dict[str, Any]]:
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"""Return provider-defined tool schemas when this provider is enabled."""
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return []
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async def handle_tool_call(self, name: str, arguments: Dict[str, Any]) -> Any:
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"""Handle a provider-defined tool call."""
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raise KeyError(f"Provider {self.provider_id} does not expose tool {name}")
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class NativeMemoryProvider(MemoryProvider):
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"""Provider adapter for Odysseus' built-in memory manager and vector store."""
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provider_id = "native"
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display_name = "Odysseus native memory"
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_CORE_FIELDS = {
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"id",
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"text",
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"timestamp",
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"source",
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"category",
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"uses",
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"owner",
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"session_id",
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"metadata",
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}
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def __init__(self, memory_manager, memory_vector=None):
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self.memory_manager = memory_manager
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self.memory_vector = memory_vector
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def _to_record(self, entry: Dict[str, Any]) -> MemoryRecord:
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metadata = {
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key: value
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for key, value in entry.items()
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if key not in self._CORE_FIELDS
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}
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stored_metadata = entry.get("metadata")
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if isinstance(stored_metadata, dict):
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metadata.update(stored_metadata)
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return MemoryRecord(
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id=entry.get("id", ""),
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text=entry.get("text", ""),
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timestamp=entry.get("timestamp", 0),
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category=entry.get("category", "fact"),
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source=entry.get("source", "unknown"),
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owner=entry.get("owner"),
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session_id=entry.get("session_id"),
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metadata=metadata,
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)
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async def remember(
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self,
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text: str,
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*,
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owner: Optional[str] = None,
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session_id: Optional[str] = None,
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category: str = "fact",
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source: str = "user",
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metadata: Optional[Dict[str, Any]] = None,
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) -> MemoryRecord:
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entry = self.memory_manager.add_entry(
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text,
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source=source,
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category=category,
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owner=owner,
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)
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if session_id:
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entry["session_id"] = session_id
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if metadata:
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entry["metadata"] = dict(metadata)
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memories = self.memory_manager.load_all()
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memories.append(entry)
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self.memory_manager.save(memories)
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if self._vector_available():
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self.memory_vector.add(entry["id"], entry["text"])
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return self._to_record(entry)
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async def recall(
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self,
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query: str,
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*,
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owner: Optional[str] = None,
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top_k: int = 5,
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) -> List[MemorySearchHit]:
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memories = self.memory_manager.load(owner=owner)
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by_id = {m.get("id"): m for m in memories}
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if self._vector_available():
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hits: List[MemorySearchHit] = []
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for result in self.memory_vector.search(query, k=top_k):
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if not isinstance(result, dict):
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continue
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memory_id = result.get("memory_id")
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entry = by_id.get(memory_id) if memory_id else result
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if not entry:
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continue
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if owner is not None and entry.get("owner") != owner:
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continue
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hits.append(
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MemorySearchHit(
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memory=self._to_record(entry),
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provider_id=self.provider_id,
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score=result.get("score"),
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)
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)
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if hits:
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return hits
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fallback = self.memory_manager.get_relevant_memories(
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query,
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memories,
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max_items=top_k,
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)
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return [
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MemorySearchHit(
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memory=self._to_record(entry),
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provider_id=self.provider_id,
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score=None,
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)
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for entry in fallback
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]
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async def list_memories(
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self,
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*,
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owner: Optional[str] = None,
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limit: int = 100,
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) -> List[MemoryRecord]:
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return [
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self._to_record(entry)
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for entry in self.memory_manager.load(owner=owner)[:limit]
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]
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async def delete(self, memory_id: str, *, owner: Optional[str] = None) -> bool:
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memories = self.memory_manager.load_all()
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remaining = []
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deleted_id = None
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for entry in memories:
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if entry.get("id") != memory_id:
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remaining.append(entry)
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continue
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if owner is not None and entry.get("owner") != owner:
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remaining.append(entry)
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continue
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deleted_id = entry.get("id")
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if deleted_id is None:
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return False
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self.memory_manager.save(remaining)
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if self._vector_available():
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self.memory_vector.remove(deleted_id)
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return True
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def _vector_available(self) -> bool:
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return bool(self.memory_vector and getattr(self.memory_vector, "healthy", True))
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class MemoryProviderRegistry:
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"""Container for native and optional external memory providers."""
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def __init__(self, providers: Optional[Iterable[MemoryProvider]] = None):
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self._providers: Dict[str, MemoryProvider] = {}
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for provider in providers or []:
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self.register(provider)
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def register(self, provider: MemoryProvider) -> None:
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if provider.provider_id in self._providers:
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raise ValueError(f"Memory provider already registered: {provider.provider_id}")
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self._providers[provider.provider_id] = provider
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def get(self, provider_id: str) -> MemoryProvider:
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return self._providers[provider_id]
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def all(self) -> List[MemoryProvider]:
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return list(self._providers.values())
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def active(self) -> List[MemoryProvider]:
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return [provider for provider in self._providers.values() if provider.enabled]
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def get_tool_schemas(self) -> List[Dict[str, Any]]:
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schemas: List[Dict[str, Any]] = []
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seen: Dict[str, str] = {}
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for provider in self.active():
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for schema in provider.get_tool_schemas():
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name = self._tool_name(schema)
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if name in seen:
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raise ValueError(
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f"Memory tool name conflict: {name} from "
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f"{provider.provider_id} already exposed by {seen[name]}"
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)
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seen[name] = provider.provider_id
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schemas.append(schema)
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return schemas
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async def handle_tool_call(self, name: str, arguments: Dict[str, Any]) -> Any:
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provider_by_tool: Dict[str, MemoryProvider] = {}
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for provider in self.active():
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for schema in provider.get_tool_schemas():
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tool_name = self._tool_name(schema)
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if tool_name in provider_by_tool:
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raise ValueError(
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f"Memory tool name conflict: {tool_name} from "
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f"{provider.provider_id} already exposed by "
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f"{provider_by_tool[tool_name].provider_id}"
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)
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provider_by_tool[tool_name] = provider
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provider = provider_by_tool.get(name)
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if provider:
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return await provider.handle_tool_call(name, arguments)
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raise KeyError(f"No active memory provider exposes tool {name}")
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@staticmethod
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def _tool_name(schema: Dict[str, Any]) -> str:
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if not isinstance(schema, dict):
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raise ValueError("Memory provider tool schema must be a dict")
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name = schema.get("name")
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if isinstance(name, str) and name:
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return name
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function = schema.get("function")
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if isinstance(function, dict):
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function_name = function.get("name")
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if isinstance(function_name, str) and function_name:
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return function_name
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raise ValueError("Memory provider tool schema is missing a tool name")
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181
tests/test_memory_provider.py
Normal file
181
tests/test_memory_provider.py
Normal file
@@ -0,0 +1,181 @@
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"""Tests for the memory provider interface and native adapter."""
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import asyncio
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class FakeVectorStore:
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healthy = True
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def __init__(self):
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self.added = []
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self.removed = []
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self.results = []
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def add(self, memory_id, text):
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self.added.append((memory_id, text))
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def remove(self, memory_id):
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self.removed.append(memory_id)
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def search(self, query, k=5):
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return self.results[:k]
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def run(coro):
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return asyncio.run(coro)
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def test_native_provider_remember_writes_native_memory_and_vector(tmp_path):
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from src.memory import MemoryManager
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from src.memory_provider import NativeMemoryProvider
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manager = MemoryManager(str(tmp_path))
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vector = FakeVectorStore()
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provider = NativeMemoryProvider(manager, vector)
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record = run(provider.remember(
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"User prefers concise responses",
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owner="alice",
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session_id="session-1",
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category="preference",
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metadata={"confidence": 0.9},
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))
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stored = manager.load(owner="alice")
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assert len(stored) == 1
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assert stored[0]["id"] == record.id
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assert stored[0]["text"] == "User prefers concise responses"
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assert stored[0]["category"] == "preference"
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assert stored[0]["session_id"] == "session-1"
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assert record.metadata["confidence"] == 0.9
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assert vector.added == [(record.id, "User prefers concise responses")]
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||||
|
||||
|
||||
def test_native_provider_recall_filters_vector_hits_by_owner(tmp_path):
|
||||
from src.memory import MemoryManager
|
||||
from src.memory_provider import NativeMemoryProvider
|
||||
|
||||
manager = MemoryManager(str(tmp_path))
|
||||
vector = FakeVectorStore()
|
||||
provider = NativeMemoryProvider(manager, vector)
|
||||
|
||||
alice = run(provider.remember("Alice likes green tea", owner="alice"))
|
||||
bob = run(provider.remember("Bob likes espresso", owner="bob"))
|
||||
vector.results = [
|
||||
{"memory_id": bob.id, "score": 0.99},
|
||||
{"memory_id": alice.id, "score": 0.75},
|
||||
]
|
||||
|
||||
hits = run(provider.recall("what does Alice like?", owner="alice", top_k=5))
|
||||
|
||||
assert [hit.memory.id for hit in hits] == [alice.id]
|
||||
assert hits[0].provider_id == "native"
|
||||
assert hits[0].score == 0.75
|
||||
|
||||
|
||||
def test_native_provider_recall_accepts_legacy_vector_rows(tmp_path):
|
||||
from src.memory import MemoryManager
|
||||
from src.memory_provider import NativeMemoryProvider
|
||||
|
||||
manager = MemoryManager(str(tmp_path))
|
||||
vector = FakeVectorStore()
|
||||
provider = NativeMemoryProvider(manager, vector)
|
||||
|
||||
vector.results = [
|
||||
{"id": "legacy-1", "text": "real memory", "timestamp": 5},
|
||||
"corrupt-row",
|
||||
None,
|
||||
]
|
||||
|
||||
hits = run(provider.recall("anything", top_k=5))
|
||||
|
||||
assert [hit.memory.id for hit in hits] == ["legacy-1"]
|
||||
assert hits[0].memory.text == "real memory"
|
||||
|
||||
|
||||
def test_native_provider_recall_falls_back_to_keyword_search(tmp_path):
|
||||
from src.memory import MemoryManager
|
||||
from src.memory_provider import NativeMemoryProvider
|
||||
|
||||
manager = MemoryManager(str(tmp_path))
|
||||
provider = NativeMemoryProvider(manager)
|
||||
saved = run(provider.remember(
|
||||
"Alice prefers markdown notes",
|
||||
owner="alice",
|
||||
category="preference",
|
||||
))
|
||||
|
||||
hits = run(provider.recall("markdown preference", owner="alice", top_k=3))
|
||||
|
||||
assert [hit.memory.id for hit in hits] == [saved.id]
|
||||
assert hits[0].score is None
|
||||
|
||||
|
||||
def test_memory_provider_registry_exposes_only_active_provider_tools():
|
||||
from src.memory_provider import MemoryProvider, MemoryProviderRegistry
|
||||
|
||||
class DummyProvider(MemoryProvider):
|
||||
def __init__(self, provider_id, enabled=True):
|
||||
self.provider_id = provider_id
|
||||
self.display_name = provider_id
|
||||
self.enabled = enabled
|
||||
|
||||
async def remember(self, text, **kwargs):
|
||||
raise NotImplementedError
|
||||
|
||||
async def recall(self, query, **kwargs):
|
||||
return []
|
||||
|
||||
async def list_memories(self, **kwargs):
|
||||
return []
|
||||
|
||||
async def delete(self, memory_id, **kwargs):
|
||||
return False
|
||||
|
||||
def get_tool_schemas(self):
|
||||
return [{"name": f"{self.provider_id}_search", "description": "Search memory"}]
|
||||
|
||||
registry = MemoryProviderRegistry([
|
||||
DummyProvider("active"),
|
||||
DummyProvider("disabled", enabled=False),
|
||||
])
|
||||
|
||||
assert registry.get_tool_schemas() == [
|
||||
{"name": "active_search", "description": "Search memory"}
|
||||
]
|
||||
|
||||
|
||||
def test_memory_provider_registry_rejects_tool_name_conflicts():
|
||||
from src.memory_provider import MemoryProvider, MemoryProviderRegistry
|
||||
|
||||
class ConflictingProvider(MemoryProvider):
|
||||
def __init__(self, provider_id):
|
||||
self.provider_id = provider_id
|
||||
self.display_name = provider_id
|
||||
|
||||
async def remember(self, text, **kwargs):
|
||||
raise NotImplementedError
|
||||
|
||||
async def recall(self, query, **kwargs):
|
||||
return []
|
||||
|
||||
async def list_memories(self, **kwargs):
|
||||
return []
|
||||
|
||||
async def delete(self, memory_id, **kwargs):
|
||||
return False
|
||||
|
||||
def get_tool_schemas(self):
|
||||
return [{"name": "memory_search"}]
|
||||
|
||||
registry = MemoryProviderRegistry([
|
||||
ConflictingProvider("first"),
|
||||
ConflictingProvider("second"),
|
||||
])
|
||||
|
||||
try:
|
||||
registry.get_tool_schemas()
|
||||
except ValueError as exc:
|
||||
assert "memory_search" in str(exc)
|
||||
else:
|
||||
raise AssertionError("Expected duplicate memory tool names to be rejected")
|
||||
Reference in New Issue
Block a user