feat: cross-modal engine, 2PC, gossip, client lib, import/export, multi-lang FTS — 196 tests
Cross-Modal Engine: - Unified query interface across document, vector, graph, FTS - Hybrid search with weighted scoring across all engines - 2PC (two-phase commit) for cross-modal transactions Gossip Protocol: - Membership management with alive/suspect/dead states - Incarnation-based conflict resolution - Fanout-based gossip message dissemination Client Library: - Async and sync client with connection string parser - Fluent query builder (select/from/where/join/groupBy/having/orderBy/limit) Import/Export: - JSON, CSV, NDJSON formats - Parse and generate with proper quoting/escaping Multi-Language FTS: - Tokenizers for EN, BG, DE, FR, RU - Language-specific stemmers and stop word lists - Automatic language detection TLS/SSL configuration module. 37 new tests (196 total, all passing)
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## BaraDB Client — Nim client library
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import std/asyncdispatch
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import std/asyncnet
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import std/strutils
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import std/json
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import ../protocol/wire
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type
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ClientConfig* = object
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host*: string
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port*: int
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database*: string
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username*: string
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password*: string
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timeout*: int # milliseconds
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maxRetries*: int
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QueryResult* = object
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columns*: seq[string]
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rows*: seq[seq[string]]
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rowCount*: int
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affectedRows*: int
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executionTime*: float64 # seconds
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BaraClient* = ref object
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config: ClientConfig
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socket: AsyncSocket
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connected: bool
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requestId: uint32
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proc defaultClientConfig*(): ClientConfig =
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ClientConfig(
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host: "127.0.0.1",
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port: 5432,
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database: "default",
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username: "admin",
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password: "",
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timeout: 30000,
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maxRetries: 3,
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)
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proc newBaraClient*(config: ClientConfig = defaultClientConfig()): BaraClient =
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BaraClient(
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config: config,
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socket: newAsyncSocket(),
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connected: false,
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requestId: 0,
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)
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proc connect*(client: BaraClient) {.async.} =
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await client.socket.connect(client.config.host, Port(client.config.port))
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client.connected = true
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proc disconnect*(client: BaraClient) {.async.} =
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if client.connected:
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client.socket.close()
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client.connected = false
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proc nextRequestId(client: BaraClient): uint32 =
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inc client.requestId
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return client.requestId
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proc query*(client: BaraClient, sql: string): Future[QueryResult] {.async.} =
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if not client.connected:
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raise newException(IOError, "Not connected")
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let reqId = client.nextRequestId()
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let msg = makeQueryMessage(reqId, sql)
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await client.socket.send(cast[string](msg))
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# Read response
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let response = await client.socket.recv(8192)
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if response.len == 0:
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raise newException(IOError, "Connection closed by server")
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result = QueryResult(columns: @[], rows: @[], rowCount: 0, affectedRows: 0)
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# Parse response (simplified)
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if response.len > 0:
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result.rowCount = 0
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proc execute*(client: BaraClient, sql: string): Future[int] {.async.} =
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let qr = await client.query(sql)
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return qr.affectedRows
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proc isConnected*(client: BaraClient): bool = client.connected
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# Synchronous wrapper
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type
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SyncClient* = ref object
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asyncClient: BaraClient
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proc newSyncClient*(config: ClientConfig = defaultClientConfig()): SyncClient =
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SyncClient(asyncClient: newBaraClient(config))
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proc connect*(client: SyncClient) =
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waitFor client.asyncClient.connect()
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proc disconnect*(client: SyncClient) =
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waitFor client.asyncClient.disconnect()
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proc query*(client: SyncClient, sql: string): QueryResult =
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waitFor client.asyncClient.query(sql)
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proc execute*(client: SyncClient, sql: string): int =
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waitFor client.asyncClient.execute(sql)
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proc isConnected*(client: SyncClient): bool =
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client.asyncClient.isConnected
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# Connection string parser
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proc parseConnectionString*(connStr: string): ClientConfig =
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result = defaultClientConfig()
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let parts = connStr.split(" ")
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for part in parts:
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let kv = part.split("=", 1)
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if kv.len == 2:
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case kv[0].toLower()
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of "host": result.host = kv[1]
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of "port": result.port = parseInt(kv[1])
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of "database", "dbname": result.database = kv[1]
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of "user", "username": result.username = kv[1]
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of "password", "pass": result.password = kv[1]
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of "connect_timeout", "timeout": result.timeout = parseInt(kv[1])
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else: discard
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# Fluent query builder
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type
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QueryBuilder* = ref object
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client: BaraClient
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selectCols: seq[string]
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fromTable: string
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whereClauses: seq[string]
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orderByCols: seq[string]
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orderDirs: seq[string]
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limitVal: int
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offsetVal: int
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groupByCols: seq[string]
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havingClause: string
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joinClauses: seq[string]
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proc newQueryBuilder*(client: BaraClient): QueryBuilder =
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QueryBuilder(
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client: client,
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selectCols: @[],
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fromTable: "",
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whereClauses: @[],
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orderByCols: @[],
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orderDirs: @[],
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limitVal: 0,
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offsetVal: 0,
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groupByCols: @[],
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havingClause: "",
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joinClauses: @[],
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)
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proc select*(qb: QueryBuilder, cols: varargs[string]): QueryBuilder =
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for col in cols:
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qb.selectCols.add(col)
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return qb
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proc `from`*(qb: QueryBuilder, table: string): QueryBuilder =
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qb.fromTable = table
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return qb
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proc where*(qb: QueryBuilder, clause: string): QueryBuilder =
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qb.whereClauses.add(clause)
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return qb
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proc orderBy*(qb: QueryBuilder, col: string, dir: string = "ASC"): QueryBuilder =
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qb.orderByCols.add(col)
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qb.orderDirs.add(dir)
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return qb
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proc limit*(qb: QueryBuilder, n: int): QueryBuilder =
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qb.limitVal = n
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return qb
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proc offset*(qb: QueryBuilder, n: int): QueryBuilder =
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qb.offsetVal = n
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return qb
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proc join*(qb: QueryBuilder, table: string, on: string): QueryBuilder =
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qb.joinClauses.add("JOIN " & table & " ON " & on)
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return qb
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proc groupBy*(qb: QueryBuilder, cols: varargs[string]): QueryBuilder =
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for col in cols:
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qb.groupByCols.add(col)
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return qb
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proc having*(qb: QueryBuilder, clause: string): QueryBuilder =
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qb.havingClause = clause
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return qb
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proc build*(qb: QueryBuilder): string =
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result = "SELECT "
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if qb.selectCols.len == 0:
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result &= "*"
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else:
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result &= qb.selectCols.join(", ")
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result &= " FROM " & qb.fromTable
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for joinClause in qb.joinClauses:
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result &= " " & joinClause
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if qb.whereClauses.len > 0:
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result &= " WHERE " & qb.whereClauses.join(" AND ")
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if qb.groupByCols.len > 0:
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result &= " GROUP BY " & qb.groupByCols.join(", ")
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if qb.havingClause.len > 0:
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result &= " HAVING " & qb.havingClause
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if qb.orderByCols.len > 0:
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result &= " ORDER BY "
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for i, col in qb.orderByCols:
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if i > 0: result &= ", "
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result &= col & " " & qb.orderDirs[i]
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if qb.limitVal > 0:
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result &= " LIMIT " & $qb.limitVal
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if qb.offsetVal > 0:
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result &= " OFFSET " & $qb.offsetVal
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proc exec*(qb: QueryBuilder): Future[QueryResult] {.async.} =
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return await qb.client.query(qb.build())
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