itsayushpandey commented on code in PR #32018: URL: https://github.com/apache/beam/pull/32018#discussion_r1712546077
########## examples/notebooks/beam-ml/rag_usecase/opensearch_connector.py: ########## @@ -0,0 +1,383 @@ +# +# Licensed to the Apache Software Foundation (ASF) under one or more +# contributor license agreements. See the NOTICE file distributed with +# this work for additional information regarding copyright ownership. +# The ASF licenses this file to You under the Apache License, Version 2.0 +# (the "License"); you may not use this file except in compliance with +# the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# + +from __future__ import absolute_import + +import logging + +import apache_beam as beam + +from apache_beam.transforms import DoFn +from apache_beam.transforms import PTransform +from apache_beam.transforms import Reshuffle +from apache_beam import coders + + +import typing +from opensearchpy import OpenSearch + +import os +from dotenv import load_dotenv + + +load_dotenv() + + +# Set the logging level to reduce verbose information +import logging + +logging.root.setLevel(logging.INFO) +logger = logging.getLogger(__name__) + + +__all__ = ['InsertDocInOpenSearch','InsertEmbeddingInOpenSearch'] + + + + +"""This module implements IO classes to read document in Opensearch. + + +Insert Doc in OpenSearch: +----------------- +:class:`InsertDocInOpenSearch` is a ``PTransform`` that writes key and values to a +configured sink, and the write is conducted through a Opensearch pipeline. + +The ptransform works by getting the first and second elements from the input, +this means that inputs like `[k,v]` or `(k,v)` are valid. + +Example usage:: + + pipeline | InsertDocInOpenSearch(host='localhost', + port=6379, + batch_size=100) + + +No backward compatibility guarantees. Everything in this module is experimental. +""" +class InsertDocInOpenSearch(PTransform): + """InsertDocInOpensearch is a ``PTransform`` that writes a ``PCollection`` of + key, value tuple or 2-element array into a Opensearch server. + """ + + def __init__(self, + host:str, + port:int, + username:str, + password:str, + batch_size:int=100 + ): + """ + + Args: + host (str, ValueProvider): The Opensearch host + port (int, ValueProvider): The Opensearch port + batch_size(int, ValueProvider): Number of key, values pairs to write at once + + Returns: + :class:`~apache_beam.transforms.ptransform.PTransform` + + """ + + self.host = host + self.port = port + self.username= username + self.password = password + self._batch_size = batch_size + + def expand(self, pcoll): + return pcoll \ + | "Reshuffle for Opensearch Insert" >> Reshuffle() \ + | "Insert document into Opensearch" >> beam.ParDo(_InsertDocOpenSearchFn(self.host, + self.port, + self.username, + self.password, + self._batch_size) + ) + + +class _InsertDocOpenSearchFn(DoFn): + """Abstract class that takes in Opensearch + credentials to connect to Opensearch DB + """ + + def __init__(self, + host:str, + port:int, + username:str, + password:str, + batch_size:int=100 + ): + self.host = host + self.port = port + self.username= username + self.password = password + self.batch_size = batch_size + + self.batch_counter = 0 + self.batch = list() + + self.text_col = None + + + def finish_bundle(self): + self._flush() + + def process(self, element, *args, **kwargs): + self.batch.append(element) + self.batch_counter += 1 + if self.batch_counter >= self.batch_size: + self._flush() + yield element + + def _flush(self): + if self.batch_counter == 0: + return + + with _InsertDocOpenSearchSink(self.host, self.port, self.username,self.password) as sink: + + sink.write(self.batch) + self.batch_counter = 0 + self.batch = list() + + + +class _InsertDocOpenSearchSink(object): + """Class where we create Opensearch client + and write insertion logic in Opensearch + """ + + def __init__(self, + host:str, + port:int, + username:str, + password:str): + self.host = host + self.port = port + self.username = username + self.password = password + self.client = None + + def _create_client(self): + if self.client is None: + http_auth = [self.username, self.password] + self.client = OpenSearch(hosts = [f'{self.host}:{self.port}'], + http_auth = http_auth, + verify_certs = False) + + + def write(self, elements): + self._create_client() + documents = [] + for element in elements: + documents.extend([{ + "index": { + "_index": "embeddings-index", + "_id" : str(element["id"]), + } + }, { + "url" : element["url"], + "title" : element["title"], + "text" : element["text"], + "section_id" : element["section_id"] + }]) + + print(f'Inside insert Doc in DB{element}') + self.client.bulk(body = documents, refresh = True) + + def __enter__(self): + self._create_client() + return self + + def __exit__(self, exc_type, exc_val, exc_tb): + if self.client is not None: + self.client.close() + + + + +"""This module implements IO classes to read text Embeddings in Opensearch. + + +Insert Embedding in Opensearch : +----------------- +:class:`InsertEmbeddingInOpensearch` is a ``PTransform`` that writes key and values to a +configured sink, and the write is conducted through a Opensearch pipeline. + +The ptransform works by getting the first and second elements from the input, +this means that inputs like `[k,v]` or `(k,v)` are valid. + +Example usage:: + + pipeline | WriteToOpensearch(host='localhost', + port=6379, + batch_size=100) + + +No backward compatibility guarantees. Everything in this module is experimental. +""" + +class InsertEmbeddingInOpenSearch(PTransform): + """WriteToOpensearch is a ``PTransform`` that writes a ``PCollection`` of + key, value tuple or 2-element array into a Opensearch server. + """ + + def __init__(self, + host:str, + port:int, + username:str, + password:str, + batch_size:int=100, + embedded_columns:list=[] + ): + """ + + Args: + host (str, ValueProvider): The Opensearch host + port (int, ValueProvider): The Opensearch port + batch_size(int, ValueProvider): Number of key, values pairs to write at once + embedded_columns (list, ValueProvider): list of column whose embedding needs to be generated + + Returns: + :class:`~apache_beam.transforms.ptransform.PTransform` + + """ + + self.host = host + self.port = port + self.username = username + self.password = password + self.batch_size = batch_size + self.embedded_columns = embedded_columns + + def expand(self, pcoll): + return pcoll \ + | "Reshuffle for Embedding in Opensearch Insert" >> Reshuffle() \ + | "Write `Embeddings` to Opensearch" >> beam.ParDo(_WriteEmbeddingInOpenSearchFn(self.host, + self.port, + self.username, + self.password, + self.batch_size, + self.embedded_columns)) + + +class _WriteEmbeddingInOpenSearchFn(DoFn): + """Abstract class that takes in Opensearch credentials + to connect to Opensearch DB + """ + + def __init__(self, + host:str, + port:int, + username:str, + password:str, + batch_size:int=100, + embedded_columns:list=[]): + self.host = host + self.port = port + self.username = username + self.password = password + self.batch_size = batch_size + self.embedded_columns = embedded_columns + + self.batch_counter = 0 + self.batch = list() + + def finish_bundle(self): + self._flush() + + def process(self, element, *args, **kwargs): + self.batch.append(element) + self.batch_counter += 1 + if self.batch_counter >= self.batch_size: + self._flush() + + def _flush(self): + if self.batch_counter == 0: + return + + with _InsertEmbeddingInOpenSearchSink(self.host, self.port, self.username, self.password, self.embedded_columns) as sink: + + sink.write(self.batch) + + self.batch_counter = 0 + self.batch = list() + + +class _InsertEmbeddingInOpenSearchSink(object): + """Class where we create Opensearch client + and write text embedding in Opensearch DB + """ + + def __init__(self, host:str, + port:int, + username:str, + password:str, + embedded_columns:list=[]): + self.host = host + self.port = port + self.username = username + self.password = password + self.embedded_columns = embedded_columns + self.client = None + + def _create_client(self): + if self.client is None: + http_auth = [self.username, self.password] + self.client = OpenSearch(hosts = [f'{self.host}:{self.port}'], + http_auth = http_auth, + verify_certs = False + ) + + + def write(self, elements): + self._create_client() + documents = [] + for element in elements: + print(f'Insert Embeddings in opensearch DB {element}') + doc_update = { + "url" : element["url"], + "section_id" : element["section_id"] + } + + for k,v in element.items(): + if k in self.embedded_columns: + doc_update[f"{k}_vector"] = v + + documents.extend([{ + "update": { + "_index": "embeddings-index", + "_id" : str(element["id"]), + } + }, { + "doc": doc_update + }]) + + + print(f'Inside insert Doc in DB{documents}') Review Comment: Yeah, I removed it now. -- This is an automated message from the Apache Git Service. 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