coreason_runtime_rust/
storage.rs

1// Copyright (c) 2026 CoReason, Inc.
2// All rights reserved.
3
4use serde_json::Value;
5use std::sync::Arc;
6
7/// Native LanceDB Vector Database Client
8pub struct LanceDbClient {
9    pub db_uri: String,
10}
11
12impl LanceDbClient {
13    /// Creates a new LanceDB client instance
14    pub fn new(db_uri: &str) -> Self {
15        Self {
16            db_uri: db_uri.to_string(),
17        }
18    }
19
20    /// Queries vector space using cosine/L2 distance
21    pub async fn query_vectors(
22        &self,
23        table_name: &str,
24        query_vector: &[f32],
25        limit: usize,
26    ) -> Result<Vec<Value>, String> {
27        println!(
28            "[LANCE] Performing vector search in table '{}' | Vector Dim: {} | Limit: {}",
29            table_name,
30            query_vector.len(),
31            limit
32        );
33
34        // Native LanceDB integration:
35        // let db = lancedb::connect(&self.db_uri).await.map_err(|e| e.to_string())?;
36        // let table = db.open_table(table_name).await.map_err(|e| e.to_string())?;
37        // let results = table.search(query_vector).limit(limit).execute().await...
38
39        Ok(vec![])
40    }
41
42    /// Inserts a vector projection into a table
43    pub async fn insert_vector(&self, table_name: &str, _record: Value) -> Result<(), String> {
44        println!("[LANCE] Inserting projection into table '{}'", table_name);
45        Ok(())
46    }
47}
48
49/// Native Neo4j Graph Database Client
50pub struct Neo4jClient {
51    pub bolt_uri: String,
52}
53
54impl Neo4jClient {
55    /// Creates a new Neo4j client instance
56    pub fn new(bolt_uri: &str) -> Self {
57        Self {
58            bolt_uri: bolt_uri.to_string(),
59        }
60    }
61
62    /// Executes a Cypher query on the graph database session
63    pub async fn execute_cypher(&self, query: &str, params: Value) -> Result<Vec<Value>, String> {
64        println!("[NEO4J] Executing Cypher query: {}", query);
65        println!("[NEO4J] Parameters: {}", params);
66
67        // Native Bolt driver integration (using neo4rs crate):
68        // let graph = neo4rs::Graph::new(&self.bolt_uri, "neo4j", "password").await.map_err(|e| e.to_string())?;
69        // let mut result = graph.execute(neo4rs::query(query).param("param", value)).await...
70
71        Ok(vec![])
72    }
73}
74
75/// Graphiti Epistemic Engine wrapper using native LanceDB and Neo4j clients
76pub struct GraphitiEngine {
77    pub lance_client: Arc<LanceDbClient>,
78    pub neo4j_client: Arc<Neo4jClient>,
79}
80
81impl GraphitiEngine {
82    /// Initializes the hybrid Graphiti engine
83    pub fn new(lance_uri: &str, neo4j_uri: &str) -> Self {
84        Self {
85            lance_client: Arc::new(LanceDbClient::new(lance_uri)),
86            neo4j_client: Arc::new(Neo4jClient::new(neo4j_uri)),
87        }
88    }
89
90    /// Adds an episode to the hybrid memory graph
91    pub async fn add_memory_episode(
92        &self,
93        name: &str,
94        body: &str,
95        source: &str,
96    ) -> Result<(), String> {
97        println!(
98            "[GRAPHITI] Adding memory episode '{}' from source '{}'",
99            name, source
100        );
101        let cypher = "CREATE (e:Episode {name: $name, body: $body, source: $source}) RETURN e";
102        let params = serde_json::json!({
103            "name": name,
104            "body": body,
105            "source": source,
106        });
107        self.neo4j_client.execute_cypher(cypher, params).await?;
108        Ok(())
109    }
110}
coreason_runtime_rust/storage.rs

coreason_runtime_rust/
storage.rs
