add vecdb example

examples/destination/vector/csv_reader.py

@@ -0,0 +1,26 @@
+import pandas as pd
+from Crypto.Cipher import AES
+from Crypto.Util.Padding import unpad
+import zstandard as zstd
+from io import StringIO
+from logger import log
+
+
+class CSVReaderAESZSTD:
+
+    def read_csv(self, file_path, aes_key, null_string, timestamp_columns):
+        with open(file_path, 'rb') as encrypted_file:
+            iv = encrypted_file.read(16)
+            encrypted_data = encrypted_file.read()
+
+        cipher = AES.new(aes_key, AES.MODE_CBC, iv)
+        decrypted_data = unpad(cipher.decrypt(encrypted_data), AES.block_size)
+
+        decompressor = zstd.ZstdDecompressor()
+
+        with decompressor.stream_reader(decrypted_data) as reader:
+            decompressed_data = reader.read()
+
+        data_str = decompressed_data.decode('utf-8')
+        df = pd.read_csv(StringIO(data_str), na_values=null_string, parse_dates=timestamp_columns)
+        return df

examples/destination/vector/destination.py

@@ -0,0 +1,41 @@
+from datetime import datetime
+from abc import ABC, abstractmethod
+
+from models.collection import Collection, Row
+from typing import Optional, Any, List
+
+from sdk.common_pb2 import ConfigurationFormResponse
+
+
+class VectorDestination(ABC):
+    """Interface for vector destinations"""
+
+    @abstractmethod
+    def configuration_form(self) -> ConfigurationFormResponse:
+        """configuration_form"""
+
+    @abstractmethod
+    def test(self, name: str, configuration: dict[str, str]) -> Optional[str]:
+        """test"""
+
+    @abstractmethod
+    def create_collection_if_not_exists(self, configuration: dict[str, Any], collection: Collection) -> None:
+        """create_collection"""
+
+    @abstractmethod
+    def upsert_rows(self, configuration: dict[str, Any], collection: Collection, rows: List[Row]) -> None:
+        """upsert_rows"""
+
+    @abstractmethod
+    def delete_rows(self, configuration: dict[str, Any], collection: Collection, ids: List[str]) -> None:
+        """delete_rows"""
+
+    @abstractmethod
+    def truncate(self, configuration: dict[str, Any], collection: Collection, synced_column: str, delete_before: datetime) -> None:
+        """delete_rows"""
+
+    # Not Ideal but no clear winner ¯\_(ツ)_/¯
+    def get_collection_name(self, schema_name: str, table_name: str) -> str:
+        schema_name = schema_name.replace("_","-")
+        table_name = table_name.replace("_", "-")
+        return f"{schema_name}-{table_name}"

examples/destination/vector/destinations/weaviate_.py

@@ -0,0 +1,86 @@
+import uuid
+import weaviate
+from weaviate.auth import AuthApiKey
+from weaviate.classes.query import Filter
+
+from sdk.common_pb2 import ConfigurationFormResponse, FormField, TextField, ConfigurationTest
+from destination import VectorDestination
+
+
+class WeaviateDestination(VectorDestination):
+    def get_collection_name(self, schema_name, table_name):
+        return f"{schema_name}_{table_name}"
+
+    def configuration_form(self):
+        fields = [
+            FormField(name="url", label="Weaviate Cluster URL", required=True, text_field=TextField.PlainText),
+            FormField(name="api_key", label="Weaviate API Key", required=True, text_field=TextField.Password)
+        ]
+        tests = [ConfigurationTest(name="connection_test", label="Connecting to Weaviate Cluster")]
+        return ConfigurationFormResponse(fields=fields, tests=tests)
+
+    def _get_client(self, configuration):
+        return weaviate.connect_to_wcs(
+            cluster_url=configuration["url"],
+            auth_credentials=AuthApiKey(configuration["api_key"])
+        )
+
+    def test(self, name, config):
+        if name != "connection_test":
+            raise ValueError(name)
+
+        client = self._get_client(config)
+
+        client.connect()
+        client.close()
+
+    def create_collection_if_not_exists(self, config, collection):
+        client = self._get_client(config)
+
+        if not client.collections.exists(collection.name):
+            print(f"Collection {collection.name} does not exist! Creating!")
+            client.collections.create(name=collection.name)
+
+        client.close()
+
+    def upsert_rows(self, config, collection, rows):
+        client = self._get_client(config)
+        c = client.collections.get(collection.name)
+
+        for row in rows:
+            _uuid = uuid.uuid5(uuid.NAMESPACE_DNS, str(row.id))
+
+            # TODO: Get these swap column names from config
+            # TODO: swap column name in framework if other vec dbs have same issue.
+            id_swap_column = "_fvt_swp_id"
+            vector_swap_column = "_fvt_swp_vector"
+
+            if "id" in row.payload:
+                row.payload[id_swap_column] = row.payload.pop("id")
+            if "vector" in row.payload:
+                row.payload[vector_swap_column] = row.payload.pop("vector")
+
+            if c.data.exists(_uuid):
+                c.data.replace(uuid=_uuid, properties=row.payload, vector=row.vector)
+            else:
+                c.data.insert(uuid=_uuid, properties=row.payload, vector=row.vector)
+
+        client.close()
+
+    def delete_rows(self, config, collection, ids):
+        client = self._get_client(config)
+        c = client.collections.get(collection.name)
+
+        for id in ids:
+            _uuid = uuid.uuid5(uuid.NAMESPACE_DNS, str(id))
+            c.data.delete_by_id(uuid=_uuid)
+
+        client.close()
+
+    def truncate(self, config, collection, synced_column, delete_before):
+        client = self._get_client(config)
+        c = client.collections.get(collection.name)
+
+        filter = Filter.by_property(synced_column).less_than(delete_before)
+        c.data.delete_many(where=filter)
+

examples/destination/vector/embedder.py

@@ -0,0 +1,31 @@
+from abc import ABC, abstractmethod
+
+from typing import Optional, Any, List, Tuple
+
+from sdk.common_pb2 import ConfigurationFormResponse
+from models.collection import Metrics
+
+
+class Embedder(ABC):
+    """Interface for embedders"""
+
+    @abstractmethod
+    def details(self)-> Tuple[str, str]:
+        """details -> [id, name]"""
+
+
+    @abstractmethod
+    def configuration_form(self) -> ConfigurationFormResponse:
+        """configuration_form"""
+
+    @abstractmethod
+    def metrics(self, configuration: dict[str, str])-> Metrics:
+        """metrics"""
+
+    @abstractmethod
+    def test(self, name: str, configuration: dict[str, str]) -> Optional[str]:
+        """test"""
+
+    @abstractmethod
+    def embed(self, configuration: dict[str, str], texts: List[str]) -> List[List[float]]:
+        """embed"""

examples/destination/vector/embedders/open_ai.py

@@ -0,0 +1,46 @@
+from embedder import Embedder
+from sdk.common_pb2 import ConfigurationFormResponse, FormField, TextField, DropdownField, ConfigurationTest
+from langchain_openai import OpenAIEmbeddings
+from models.collection import Metrics, Distance
+
+MODELS = {
+    "text-embedding-ada-002": Metrics(
+        distance=Distance.COSINE,
+        dimensions=1536
+    )
+}
+
+
+class OpenAIEmbedder(Embedder):
+
+    def details(self):
+        return "open_ai", "OpenAI"
+
+    def configuration_form(self):
+        models = DropdownField(dropdown_field=list(MODELS.keys()))
+        fields = [
+            FormField(name="api_key", label="OpenAI API Key", required=True, text_field=TextField.Password),
+            FormField(name="embedding_model", label="OpenAI Embedding Model", required=True, dropdown_field=models),
+        ]
+        tests = [ConfigurationTest(name="embedding_test", label="Checking OpenAI Embedding Generation")]
+        return ConfigurationFormResponse(fields=fields, tests=tests)
+
+    def metrics(self, config) -> Metrics:
+        return MODELS[config["embedding_model"]]
+
+    def _get_embedding(self, configuration):
+        api_key = configuration["api_key"]
+        model = configuration["embedding_model"]
+
+        return OpenAIEmbeddings(api_key=api_key, model=model)
+
+    def test(self, name, configuration):
+        if name != "embedding_test":
+            raise ValueError(f'Unknown test : {name}')
+
+        embedding = self._get_embedding(configuration)
+        embedding.embed_query("foo-bar-biz")
+
+    def embed(self, configuration, texts):
+        embedding = self._get_embedding(configuration)
+        return embedding.embed_documents(texts)

examples/destination/vector/logger.py

@@ -0,0 +1,10 @@
+import json
+
+
+def log(msg: str):
+    m = {
+        "level": "INFO",
+        "message": msg,
+        "message-origin": "sdk_destination"
+    }
+    print(json.dumps(m), flush=True)

examples/destination/vector/main.py

@@ -0,0 +1,27 @@
+import grpc
+from concurrent import futures
+from sdk.destination_sdk_pb2_grpc import add_DestinationServicer_to_server
+from destination import VectorDestination
+from service import VectorDestinationServicer
+import sys
+
+
+def serve(vec_dest: VectorDestination):
+    server = grpc.server(futures.ThreadPoolExecutor(max_workers=10))
+    add_DestinationServicer_to_server(VectorDestinationServicer(vec_dest), server)
+
+    if len(sys.argv) == 3 and sys.argv[1] == '--port':
+        port = int(sys.argv[2])
+    else:
+        port = 50052
+
+    server.add_insecure_port(f'[::]:{port}')
+    print(f"Running GRPC Server on {port}")
+    server.start()
+    server.wait_for_termination()
+
+
+from destinations.weaviate_ import WeaviateDestination
+
+if __name__ == '__main__':
+    serve(WeaviateDestination())

examples/destination/vector/models/collection.py

@@ -0,0 +1,31 @@
+from dataclasses import dataclass
+from typing import List, Dict, Any
+from enum import Enum
+
+
+class Distance(Enum):
+    COSINE = 1
+    DOT = 2
+    EUCLIDIAN = 3
+
+
+@dataclass
+class Metrics:
+    distance: Distance
+    dimensions: int
+
+
+@dataclass
+class Collection:
+    name: str
+    metrics: Metrics
+
+
+@dataclass
+class Row:
+    id: str
+    vector: List[float]
+    content: str
+    payload: Dict[str, Any]
+
+

examples/destination/vector/requirements.txt

@@ -0,0 +1,9 @@
+pandas
+weaviate-client
+langchain
+langchain-community
+langchain-openai
+pycrypto
+pycryptodome
+zstandard
+grpcio