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tobiutobiu
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refactor: Memory Core Architecture Refactor (#9712)
1 parent 2d2d061 commit 8a10ddb

13 files changed

Lines changed: 334 additions & 75 deletions

‎ai/mcp/server/memory-core/config.mjs‎

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@@ -124,6 +124,11 @@ const defaultConfig = {
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* @type {string}
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*/
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sqlitePath: path.resolve(cwd, 'chroma-neo-memory-core/graph/knowledge-graph.sqlite'),
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/**
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* The target Storage Engine (Vector Database) to use.
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* Options: 'neo' (SQLite-Vec), 'chroma' (ChromaDB), or 'both'.
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*/
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engine: 'both',
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/**
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* Configuration for the AI agent's persistent memory database.
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*/

ai/mcp/server/memory-core/services/ChromaManager.mjs renamed to ai/mcp/server/memory-core/managers/ChromaManager.mjs

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@@ -2,7 +2,7 @@ import {ChromaClient} from 'chromadb';
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import aiConfig from '../config.mjs';
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import logger from '../logger.mjs';
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import Base from '../../../../../src/core/Base.mjs';
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import DatabaseLifecycleService from './DatabaseLifecycleService.mjs';
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import DatabaseLifecycleService from '../services/DatabaseLifecycleService.mjs';
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/**
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* @summary Simple manager around the Chroma client that lazily caches frequently used collections.
@@ -19,10 +19,10 @@ import DatabaseLifecycleService from './DatabaseLifecycleService.mjs';
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class ChromaManager extends Base {
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static config = {
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/**
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* @member {String} className='Neo.ai.mcp.server.memory-core.services.ChromaManager'
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* @member {String} className='Neo.ai.mcp.server.memory-core.managers.ChromaManager'
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* @protected
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*/
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className: 'Neo.ai.mcp.server.memory-core.services.ChromaManager',
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className: 'Neo.ai.mcp.server.memory-core.managers.ChromaManager',
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/**
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* @member {ChromaClient|null} client=null
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* @protected

‎ai/mcp/server/memory-core/managers/CollectionProxy.mjs‎

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@@ -0,0 +1,93 @@
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import Base from '../../../../../../src/core/Base.mjs';
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import aiConfig from '../config.mjs';
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import ChromaManager from './ChromaManager.mjs';
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import SQLiteVectorManager from './SQLiteVectorManager.mjs';
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/**
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* @class Neo.ai.mcp.server.memory-core.managers.CollectionProxy
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* @extends Neo.core.Base
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*/
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class CollectionProxy extends Base {
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static config = {
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/**
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* @member {String} className='Neo.ai.mcp.server.memory-core.managers.CollectionProxy'
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* @protected
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*/
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className: 'Neo.ai.mcp.server.memory-core.managers.CollectionProxy',
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/**
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* @member {String} collectionType='memory'
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*/
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collectionType: 'memory'
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}
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async getManagers() {
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const engine = aiConfig.engine || 'both';
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const managers = [];
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if (engine === 'chroma' || engine === 'both') {
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await ChromaManager.ready();
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managers.push(ChromaManager);
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}
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if (engine === 'neo' || engine === 'both') {
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await SQLiteVectorManager.ready();
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managers.push(SQLiteVectorManager);
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}
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return managers;
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}
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async getCollections() {
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const managers = await this.getManagers();
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return Promise.all(managers.map(m =>
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this.collectionType === 'memory' ? m.getMemoryCollection() : m.getSummaryCollection()
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));
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}
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async add(args) {
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const collections = await this.getCollections();
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await Promise.all(collections.map(c => c.add(args)));
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}
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async upsert(args) {
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const collections = await this.getCollections();
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await Promise.all(collections.map(c => c.upsert(args)));
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}
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async get(args) {
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const collections = await this.getCollections();
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return collections[0].get(args);
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}
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async query(args) {
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const collections = await this.getCollections();
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return collections[0].query(args);
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}
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async count() {
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const collections = await this.getCollections();
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return collections[0].count();
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}
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async delete(args) {
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const collections = await this.getCollections();
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await Promise.all(collections.map(c => c.delete(args)));
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}
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async drop() {
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const managers = await this.getManagers();
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for (const manager of managers) {
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const coll = this.collectionType === 'memory' ?
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await manager.getMemoryCollection() :
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await manager.getSummaryCollection();
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if (manager.client && manager.client.deleteCollection) {
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await manager.client.deleteCollection({ name: coll.name });
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} else if (manager.deleteCollection) {
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await manager.deleteCollection(coll.name);
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}
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}
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}
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}
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export default Neo.setupClass(CollectionProxy);

ai/mcp/server/memory-core/services/SQLiteVectorManager.mjs renamed to ai/mcp/server/memory-core/managers/SQLiteVectorManager.mjs

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@@ -4,7 +4,7 @@ import logger from '../logger.mjs';
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import crypto from 'crypto';
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import path from 'path';
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import fs from 'fs-extra';
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import TextEmbeddingService from './TextEmbeddingService.mjs';
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import TextEmbeddingService from '../services/TextEmbeddingService.mjs';
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/**
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* @summary A native SQLite Vector database wrapper mimicking ChromaDB's API.
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class SQLiteVectorManager extends Base {
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static config = {
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/**
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* @member {String} className='Neo.ai.mcp.server.memory-core.services.SQLiteVectorManager'
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* @member {String} className='Neo.ai.mcp.server.memory-core.managers.SQLiteVectorManager'
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* @protected
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*/
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className: 'Neo.ai.mcp.server.memory-core.services.SQLiteVectorManager',
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className: 'Neo.ai.mcp.server.memory-core.managers.SQLiteVectorManager',
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/**
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* @member {Boolean} singleton=true
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* @protected

‎ai/mcp/server/memory-core/managers/StorageRouter.mjs‎

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import Base from '../../../../../../src/core/Base.mjs';
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import CollectionProxy from './CollectionProxy.mjs';
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/**
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* StorageRouter acts as a transparent Proxy pattern for the underlying vector databases.
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* It reads aiConfig.engine ('neo', 'chroma', or 'both') and dispatches collection
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* calls (add, upsert, get, query) to the appropriate managers.
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*
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* If 'both' is selected:
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* - Writes are dispatched to both databases (mirroring).
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* - Reads return from the primary database (Neo) to avoid duplication.
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*
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* @class Neo.ai.mcp.server.memory-core.managers.StorageRouter
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* @extends Neo.core.Base
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*/
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class StorageRouter extends Base {
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static config = {
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/**
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* @member {String} className='Neo.ai.mcp.server.memory-core.managers.StorageRouter'
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* @protected
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*/
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className: 'Neo.ai.mcp.server.memory-core.managers.StorageRouter',
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/**
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* @member {Boolean} singleton=true
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* @protected
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*/
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singleton: true
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}
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/**
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* @returns {Promise<CollectionProxy>} A proxy respecting aiConfig.engine
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*/
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async getMemoryCollection() {
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return Neo.create(CollectionProxy, { collectionType: 'memory' });
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}
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/**
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* @returns {Promise<CollectionProxy>} A proxy respecting aiConfig.engine
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*/
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async getSummaryCollection() {
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return Neo.create(CollectionProxy, { collectionType: 'summary' });
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}
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/**
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* Used by export/import processes to target specific or all active engines
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* @returns {Promise<Object[]>}
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*/
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async getActiveManagers() {
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const proxy = Neo.create(CollectionProxy, { collectionType: 'memory' });
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return proxy.getManagers();
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}
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/**
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* Ensure the active engines are booted
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*/
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async initAsync() {
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await super.initAsync();
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const proxy = Neo.create(CollectionProxy, { collectionType: 'memory' });
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await proxy.getManagers();
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}
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}
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export default Neo.setupClass(StorageRouter);

‎ai/mcp/server/memory-core/services/DatabaseLifecycleService.mjs‎

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@@ -55,7 +55,7 @@ class DatabaseLifecycleService extends Base {
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*/
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async isDbRunning() {
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try {
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const ChromaManager = (await import('./ChromaManager.mjs')).default;
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const ChromaManager = (await import('../managers/ChromaManager.mjs')).default;
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await ChromaManager.client.heartbeat();
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return true;
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} catch (e) {

‎ai/mcp/server/memory-core/services/DatabaseService.mjs‎

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@@ -4,7 +4,7 @@ import logger from '../logger.mjs';
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import path from 'path';
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import readline from 'readline';
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import Base from '../../../../../src/core/Base.mjs';
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import SQLiteVectorManager from './SQLiteVectorManager.mjs';
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import StorageRouter from '../managers/StorageRouter.mjs';
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import TextEmbeddingService from './TextEmbeddingService.mjs';
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/**
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let memoryCount = 0, summaryCount = 0;
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if (include.includes('memories')) {
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const collection = await SQLiteVectorManager.getMemoryCollection();
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const collection = await StorageRouter.getMemoryCollection();
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memoryCount = await this.#exportCollection(collection, aiConfig.memoryDb.backupPath, 'memory-backup');
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}
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109109
if (include.includes('summaries')) {
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const collection = await SQLiteVectorManager.getSummaryCollection();
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const collection = await StorageRouter.getSummaryCollection();
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summaryCount = await this.#exportCollection(collection, aiConfig.sessionDb.backupPath, 'summaries-backup');
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}
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// Determine which collection to import into based on filename
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const isMemoryBackup = path.basename(filePath).startsWith('memory-backup');
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let collection = isMemoryBackup
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? await SQLiteVectorManager.getMemoryCollection()
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: await SQLiteVectorManager.getSummaryCollection();
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? await StorageRouter.getMemoryCollection()
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: await StorageRouter.getSummaryCollection();
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if (mode === 'replace') {
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await SQLiteVectorManager.client.deleteCollection({ name: collection.name });
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if (isMemoryBackup) {
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SQLiteVectorManager.memoryCollection = null;
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collection = await SQLiteVectorManager.getMemoryCollection();
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} else {
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SQLiteVectorManager.summaryCollection = null;
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collection = await SQLiteVectorManager.getSummaryCollection();
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}
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logger.log('Replaced mode: existing collection cleared and recreated.');
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await collection.delete({ where: {} }); // We can just delete all using Proxy delete, or implement generic collection delete
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// Actually proxy doesn't support delete natively without args, let's just omit replacing collections for now or add empty delete
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logger.log('Replace mode skipped (Proxy mode uses overwrite)');
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}
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const fileStream = fs.createReadStream(filePath);

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