Fix Dockerfile build issue

autorag/vectordb/couchbase.py

@@ -0,0 +1,218 @@
+import logging
+
+from datetime import timedelta
+
+from couchbase.auth import PasswordAuthenticator
+from couchbase.cluster import Cluster
+from couchbase.options import ClusterOptions
+
+from typing import List, Tuple, Optional, Union
+
+from autorag.utils.util import make_batch
+from autorag.vectordb import BaseVectorStore
+
+logger = logging.getLogger("AutoRAG")
+
+
+class Couchbase(BaseVectorStore):
+	def __init__(
+		self,
+		embedding_model: Union[str, List[dict]],
+		bucket_name: str,
+		scope_name: str,
+		collection_name: str,
+		index_name: str,
+		embedding_batch: int = 100,
+		connection_string: str = "",
+		username: str = "",
+		password: str = "",
+		ingest_batch: int = 100,
+		text_key: Optional[str] = "text",
+		embedding_key: Optional[str] = "embedding",
+		scoped_index: bool = True,
+	):
+		super().__init__(
+			embedding_model=embedding_model,
+			similarity_metric="ip",
+			embedding_batch=embedding_batch,
+		)
+
+		self.index_name = index_name
+		self.bucket_name = bucket_name
+		self.scope_name = scope_name
+		self.collection_name = collection_name
+		self.scoped_index = scoped_index
+		self.text_key = text_key
+		self.embedding_key = embedding_key
+		self.ingest_batch = ingest_batch
+
+		auth = PasswordAuthenticator(username, password)
+		self.cluster = Cluster(connection_string, ClusterOptions(auth))
+
+		# Wait until the cluster is ready for use.
+		self.cluster.wait_until_ready(timedelta(seconds=5))
+
+		# Check if the bucket exists
+		if not self._check_bucket_exists():
+			raise ValueError(
+				f"Bucket {self.bucket_name} does not exist. "
+				" Please create the bucket before searching."
+			)
+
+		try:
+			self.bucket = self.cluster.bucket(self.bucket_name)
+			self.scope = self.bucket.scope(self.scope_name)
+			self.collection = self.scope.collection(self.collection_name)
+		except Exception as e:
+			raise ValueError(
+				"Error connecting to couchbase. "
+				"Please check the connection and credentials."
+			) from e
+
+		# Check if the index exists. Throws ValueError if it doesn't
+		try:
+			self._check_index_exists()
+		except Exception:
+			raise
+
+		# Reinitialize to ensure a consistent state
+		self.bucket = self.cluster.bucket(self.bucket_name)
+		self.scope = self.bucket.scope(self.scope_name)
+		self.collection = self.scope.collection(self.collection_name)
+
+	async def add(self, ids: List[str], texts: List[str]):
+		from couchbase.exceptions import DocumentExistsException
+
+		texts = self.truncated_inputs(texts)
+		text_embeddings: List[
+			List[float]
+		] = await self.embedding.aget_text_embedding_batch(texts)
+
+		documents_to_insert = []
+		for _id, text, embedding in zip(ids, texts, text_embeddings):
+			doc = {
+				self.text_key: text,
+				self.embedding_key: embedding,
+			}
+			documents_to_insert.append({_id: doc})
+
+		batch_documents_to_insert = make_batch(documents_to_insert, self.ingest_batch)
+
+		for batch in batch_documents_to_insert:
+			insert_batch = {}
+			for doc in batch:
+				insert_batch.update(doc)
+			try:
+				self.collection.upsert_multi(insert_batch)
+			except DocumentExistsException as e:
+				logger.debug(f"Document already exists: {e}")
+
+	async def fetch(self, ids: List[str]) -> List[List[float]]:
+		# Fetch vectors by IDs
+		fetched_result = self.collection.get_multi(ids)
+		fetched_vectors = {
+			k: v.value[f"{self.embedding_key}"]
+			for k, v in fetched_result.results.items()
+		}
+		return list(map(lambda x: fetched_vectors[x], ids))
+
+	async def is_exist(self, ids: List[str]) -> List[bool]:
+		existed_result = self.collection.exists_multi(ids)
+		existed_ids = {k: v.exists for k, v in existed_result.results.items()}
+		return list(map(lambda x: existed_ids[x], ids))
+
+	async def query(
+		self, queries: List[str], top_k: int, **kwargs
+	) -> Tuple[List[List[str]], List[List[float]]]:
+		import couchbase.search as search
+		from couchbase.options import SearchOptions
+		from couchbase.vector_search import VectorQuery, VectorSearch
+
+		queries = self.truncated_inputs(queries)
+		query_embeddings: List[
+			List[float]
+		] = await self.embedding.aget_text_embedding_batch(queries)
+
+		ids, scores = [], []
+		for query_embedding in query_embeddings:
+			# Create Search Request
+			search_req = search.SearchRequest.create(
+				VectorSearch.from_vector_query(
+					VectorQuery(
+						self.embedding_key,
+						query_embedding,
+						top_k,
+					)
+				)
+			)
+
+			# Search
+			if self.scoped_index:
+				search_iter = self.scope.search(
+					self.index_name,
+					search_req,
+					SearchOptions(limit=top_k),
+				)
+
+			else:
+				search_iter = self.cluster.search(
+					self.index_name,
+					search_req,
+					SearchOptions(limit=top_k),
+				)
+
+			# Parse the search results
+			# search_iter.rows() can only be iterated once.
+			id_list, score_list = [], []
+			for result in search_iter.rows():
+				id_list.append(result.id)
+				score_list.append(result.score)
+
+			ids.append(id_list)
+			scores.append(score_list)
+
+		return ids, scores
+
+	async def delete(self, ids: List[str]):
+		self.collection.remove_multi(ids)
+
+	def _check_bucket_exists(self) -> bool:
+		"""Check if the bucket exists in the linked Couchbase cluster.
+
+		Returns:
+		    True if the bucket exists
+		"""
+		bucket_manager = self.cluster.buckets()
+		try:
+			bucket_manager.get_bucket(self.bucket_name)
+			return True
+		except Exception as e:
+			logger.debug("Error checking if bucket exists:", e)
+			return False
+
+	def _check_index_exists(self) -> bool:
+		"""Check if the Search index exists in the linked Couchbase cluster
+		Returns:
+		    bool: True if the index exists, False otherwise.
+		    Raises a ValueError if the index does not exist.
+		"""
+		if self.scoped_index:
+			all_indexes = [
+				index.name for index in self.scope.search_indexes().get_all_indexes()
+			]
+			if self.index_name not in all_indexes:
+				raise ValueError(
+					f"Index {self.index_name} does not exist. "
+					" Please create the index before searching."
+				)
+		else:
+			all_indexes = [
+				index.name for index in self.cluster.search_indexes().get_all_indexes()
+			]
+			if self.index_name not in all_indexes:
+				raise ValueError(
+					f"Index {self.index_name} does not exist. "
+					" Please create the index before searching."
+				)
+
+		return True