├── hooks ├── __init__.py └── mongo_hook.py ├── README.md ├── operators ├── __init__.py ├── mongo_to_s3_operator.py └── s3_to_mongo_operator.py ├── .gitignore ├── __init__.py └── LICENSE /hooks/__init__.py: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # mongo_plugin -------------------------------------------------------------------------------- /operators/__init__.py: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | .DS_Store 2 | -------------------------------------------------------------------------------- /__init__.py: -------------------------------------------------------------------------------- 1 | from airflow.plugins_manager import AirflowPlugin 2 | from mongo_plugin.hooks.mongo_hook import MongoHook 3 | from mongo_plugin.operators.s3_to_mongo_operator import S3ToMongoOperator 4 | from mongo_plugin.operators.mongo_to_s3_operator import MongoToS3Operator 5 | 6 | 7 | class MongoPlugin(AirflowPlugin): 8 | name = "MongoPlugin" 9 | operators = [MongoToS3Operator, S3ToMongoOperator] 10 | hooks = [MongoHook] 11 | executors = [] 12 | macros = [] 13 | admin_views = [] 14 | flask_blueprints = [] 15 | menu_links = [] 16 | -------------------------------------------------------------------------------- /operators/mongo_to_s3_operator.py: -------------------------------------------------------------------------------- 1 | from bson import json_util 2 | import json 3 | 4 | from mongo_plugin.hooks.mongo_hook import MongoHook 5 | from airflow.hooks.S3_hook import S3Hook 6 | from airflow.models import BaseOperator 7 | 8 | 9 | class MongoToS3Operator(BaseOperator): 10 | """ 11 | Mongo -> S3 12 | :param mongo_conn_id: The source mongo connection id. 13 | :type mongo_conn_id: string 14 | :param mongo_collection: The source mongo collection. 15 | :type mongo_collection: string 16 | :param mongo_database: The source mongo database. 17 | :type mongo_database: string 18 | :param mongo_query: The specified mongo query. 19 | :type mongo_query: string 20 | :param s3_conn_id: The destination s3 connnection id. 21 | :type s3_conn_id: string 22 | :param s3_bucket: The destination s3 bucket. 23 | :type s3_bucket: string 24 | :param s3_key: The destination s3 key. 25 | :type s3_key: string 26 | """ 27 | 28 | # TODO This currently sets job = queued and locks job 29 | template_fields = ['s3_key', 'mongo_query'] 30 | 31 | def __init__(self, 32 | mongo_conn_id, 33 | mongo_collection, 34 | mongo_database, 35 | mongo_query, 36 | s3_conn_id, 37 | s3_bucket, 38 | s3_key, 39 | *args, **kwargs): 40 | super(MongoToS3Operator, self).__init__(*args, **kwargs) 41 | # Conn Ids 42 | self.mongo_conn_id = mongo_conn_id 43 | self.s3_conn_id = s3_conn_id 44 | # Mongo Query Settings 45 | self.mongo_db = mongo_database 46 | self.mongo_collection = mongo_collection 47 | # Grab query and determine if we need to run an aggregate pipeline 48 | self.mongo_query = mongo_query 49 | self.is_pipeline = True if isinstance(self.mongo_query, list) else False 50 | 51 | # S3 Settings 52 | self.s3_bucket = s3_bucket 53 | self.s3_key = s3_key 54 | 55 | # KWARGS 56 | self.replace = kwargs.pop('replace', False) 57 | 58 | def execute(self, context): 59 | """ 60 | Executed by task_instance at runtime 61 | """ 62 | mongo_conn = MongoHook(self.mongo_conn_id).get_conn() 63 | s3_conn = S3Hook(self.s3_conn_id) 64 | 65 | # Grab collection and execute query according to whether or not it is a pipeline 66 | collection = mongo_conn.get_database(self.mongo_db).get_collection(self.mongo_collection) 67 | results = collection.aggregate(self.mongo_query) if self.is_pipeline else collection.find(self.mongo_query) 68 | 69 | # Performs transform then stringifies the docs results into json format 70 | docs_str = self._stringify(self.transform(results)) 71 | 72 | s3_conn.load_string(docs_str, self.s3_key, bucket_name=self.s3_bucket, replace=self.replace) 73 | 74 | def _stringify(self, iter, joinable='\n'): 75 | """ 76 | Takes an interable (pymongo Cursor or Array) containing dictionaries and 77 | returns a stringified version using python join 78 | """ 79 | return joinable.join([json.dumps(doc, default=json_util.default) for doc in iter]) 80 | 81 | def transform(self, docs): 82 | """ 83 | Processes pyMongo cursor and returns single array with each element being 84 | a JSON serializable dictionary 85 | MongoToS3Operator.transform() assumes no processing is needed 86 | ie. docs is a pyMongo cursor of documents and cursor just needs to be 87 | converted into an array. 88 | """ 89 | return [doc for doc in docs] 90 | -------------------------------------------------------------------------------- /hooks/mongo_hook.py: -------------------------------------------------------------------------------- 1 | from ssl import CERT_NONE 2 | 3 | from airflow.hooks.base_hook import BaseHook 4 | 5 | from pymongo import MongoClient 6 | 7 | 8 | class MongoHook(BaseHook): 9 | """ 10 | PyMongo Wrapper to Interact With Mongo Database 11 | Mongo Connection Documentation 12 | https://docs.mongodb.com/manual/reference/connection-string/index.html 13 | You can specify connection string options in extra field of your connection 14 | https://docs.mongodb.com/manual/reference/connection-string/index.html#connection-string-options 15 | ex. 16 | {replicaSet: test, ssl: True, connectTimeoutMS: 30000} 17 | """ 18 | conn_type = 'MongoDb' 19 | 20 | def __init__(self, conn_id='mongo_default', *args, **kwargs): 21 | super().__init__(source='mongo') 22 | 23 | self.mongo_conn_id = conn_id 24 | self.connection = self.get_connection(conn_id) 25 | self.extras = self.connection.extra_dejson 26 | 27 | def get_conn(self): 28 | """ 29 | Fetches PyMongo Client 30 | """ 31 | conn = self.connection 32 | 33 | uri = 'mongodb://{creds}{host}{port}/{database}'.format( 34 | creds='{}:{}@'.format( 35 | conn.login, conn.password 36 | ) if conn.login is not None else '', 37 | 38 | host=conn.host, 39 | port='' if conn.port is None else ':{}'.format(conn.port), 40 | database='' if conn.schema is None else conn.schema 41 | ) 42 | 43 | # Mongo Connection Options dict that is unpacked when passed to MongoClient 44 | options = self.extras 45 | 46 | # If we are using SSL disable requiring certs from specific hostname 47 | if options.get('ssl', False): 48 | options.update({'ssl_cert_reqs': CERT_NONE}) 49 | 50 | return MongoClient(uri, **options) 51 | 52 | def get_collection(self, mongo_collection, mongo_db=None): 53 | """ 54 | Fetches a mongo collection object for querying. 55 | Uses connection schema as DB unless specified 56 | """ 57 | mongo_db = mongo_db if mongo_db is not None else self.connection.schema 58 | mongo_conn = self.get_conn() 59 | 60 | return mongo_conn.get_database(mongo_db).get_collection(mongo_collection) 61 | 62 | def aggregate(self, mongo_collection, aggregate_query, mongo_db=None, **kwargs): 63 | """ 64 | Runs and aggregation pipeline and returns the results 65 | https://api.mongodb.com/python/current/api/pymongo/collection.html#pymongo.collection.Collection.aggregate 66 | http://api.mongodb.com/python/current/examples/aggregation.html 67 | """ 68 | collection = self.get_collection(mongo_collection, mongo_db=mongo_db) 69 | 70 | return collection.aggregate(aggregate_query, **kwargs) 71 | 72 | def find(self, mongo_collection, query, find_one=False, mongo_db=None, **kwargs): 73 | """ 74 | Runs a mongo find query and returns the results 75 | https://api.mongodb.com/python/current/api/pymongo/collection.html#pymongo.collection.Collection.find 76 | """ 77 | collection = self.get_collection(mongo_collection, mongo_db=mongo_db) 78 | 79 | if find_one: 80 | return collection.find_one(query, **kwargs) 81 | else: 82 | return collection.find(query, **kwargs) 83 | 84 | def insert_one(self, mongo_collection, doc, mongo_db=None, **kwargs): 85 | """ 86 | Inserts a single document into a mongo collection 87 | https://api.mongodb.com/python/current/api/pymongo/collection.html#pymongo.collection.Collection.insert_one 88 | """ 89 | collection = self.get_collection(mongo_collection, mongo_db=mongo_db) 90 | 91 | return collection.insert_one(doc, **kwargs) 92 | 93 | def insert_many(self, mongo_collection, docs, mongo_db=None, **kwargs): 94 | """ 95 | Inserts many docs into a mongo collection. 96 | https://api.mongodb.com/python/current/api/pymongo/collection.html#pymongo.collection.Collection.insert_many 97 | """ 98 | collection = self.get_collection(mongo_collection, mongo_db=mongo_db) 99 | 100 | return collection.insert_many(docs, **kwargs) 101 | 102 | def replace_one(self, mongo_collection, replacement_filter, doc, mongo_db=None, **kwargs): 103 | """ 104 | Replaces a single document that matches a filter in a mongo collection. 105 | https://api.mongodb.com/python/current/api/pymongo/collection.html#pymongo.collection.Collection.replace_one 106 | """ 107 | collection = self.get_collection(mongo_collection, mongo_db=mongo_db) 108 | 109 | return collection.replace_one(replacement_filter, doc, **kwargs) 110 | 111 | def update_one(self, mongo_collection, update_filter, update, mongo_db=None, **kwargs): 112 | """ 113 | Updates a single document that matches a filter in a mongo collection. 114 | https://api.mongodb.com/python/current/api/pymongo/collection.html#pymongo.collection.Collection.update_one 115 | """ 116 | collection = self.get_collection(mongo_collection, mongo_db=mongo_db) 117 | 118 | return collection.update_one(update_filter, update, **kwargs) 119 | 120 | def update_many(self, mongo_collection, update_filter, update, mongo_db=None, **kwargs): 121 | """ 122 | Updates many docs that matches a filter in a mongo collection. 123 | https://api.mongodb.com/python/current/api/pymongo/collection.html#pymongo.collection.Collection.update_many 124 | """ 125 | collection = self.get_collection(mongo_collection, mongo_db=mongo_db) 126 | 127 | return collection.update_many(update_filter, update, **kwargs) 128 | 129 | def bulk_write(self, mongo_collection, requests, mongo_db=None, **kwargs): 130 | """ 131 | Submits a bulk write job mongo based on the specified requests. 132 | https://api.mongodb.com/python/current/api/pymongo/collection.html#pymongo.collection.Collection.bulk_write 133 | """ 134 | collection = self.get_collection(mongo_collection, mongo_db=mongo_db) 135 | 136 | return collection.bulk_write(requests, **kwargs) 137 | -------------------------------------------------------------------------------- /operators/s3_to_mongo_operator.py: -------------------------------------------------------------------------------- 1 | import json 2 | import logging 3 | 4 | from mongo_plugin.hooks.mongo_hook import MongoHook 5 | from airflow.hooks.S3_hook import S3Hook 6 | from airflow.models import BaseOperator 7 | 8 | from pymongo import ReplaceOne 9 | 10 | 11 | class S3ToMongoOperator(BaseOperator): 12 | """ 13 | S3 -> Mongo 14 | :param s3_conn_id: The source s3 connnection id. 15 | :type s3_conn_id: string 16 | :param s3_bucket: The source s3 bucket. 17 | :type s3_bucket: string 18 | :param s3_key: The source s3 key. 19 | :type s3_key: string 20 | :param mongo_conn_id: The destination mongo connection id. 21 | :type mongo_conn_id: string 22 | :param mongo_collection: The destination mongo collection. 23 | :type mongo_collection: string 24 | :param mongo_db: The destination mongo database. 25 | :type mongo_db: string 26 | :param mongo_method: The method to push records into mongo. Possible 27 | values for this include: 28 | - insert 29 | - replace 30 | :type mongo_method: string 31 | :param mongo_replacement_filter: *(optional)* If choosing the replace 32 | method, this indicates the the filter to 33 | determine which records to replace. This 34 | may be set as either a string or dictionary. 35 | If set as a string, the operator will 36 | view that as a key and replace the record in 37 | Mongo where the value of the key in the 38 | existing collection matches the incoming 39 | value of the key in the incoming record. 40 | If set as a dictionary, the dictionary will 41 | be passed in normally as a filter. If using 42 | a dictionary and also attempting to filter 43 | based on the value of a certain key 44 | (as in when this is set as a string), 45 | set the key and value as the same. 46 | (e.g. {"customer_id": "customer_id"}) 47 | :type mongo_replacement_filter: string/dictionary 48 | :param upsert: *(optional)* If choosing the replace method, 49 | this is used to indicate whether records should 50 | be upserted. 51 | Defaults to False. 52 | :type upsert: boolean 53 | """ 54 | 55 | template_fields = ('s3_key', 56 | 'mongo_collection', 57 | 'mongo_replacement_filter') 58 | 59 | def __init__(self, 60 | s3_conn_id, 61 | s3_bucket, 62 | s3_key, 63 | mongo_conn_id, 64 | mongo_collection, 65 | mongo_method='insert', 66 | mongo_db=None, 67 | mongo_replacement_filter=None, 68 | upsert=False, 69 | *args, 70 | **kwargs): 71 | super().__init__(*args, **kwargs) 72 | self.s3_conn_id = s3_conn_id 73 | self.s3_bucket = s3_bucket 74 | self.s3_key = s3_key 75 | self.mongo_conn_id = mongo_conn_id 76 | self.mongo_method = mongo_method 77 | self.mongo_collection = mongo_collection 78 | self.mongo_db = mongo_db 79 | self.mongo_replacement_filter = mongo_replacement_filter 80 | self.upsert = upsert 81 | 82 | if self.mongo_method not in ('insert', 'replace'): 83 | raise Exception('Please specify either "insert" or "replace" for Mongo method.') 84 | 85 | if (self.upsert is not True and self.upsert is not False): 86 | raise Exception('Upsert must be specified as a boolean. Please choose True/False.') 87 | 88 | def execute(self, context): 89 | s3 = S3Hook(self.s3_conn_id) 90 | mongo = MongoHook(conn_id=self.mongo_conn_id) 91 | 92 | data = (s3 93 | .get_key(self.s3_key, 94 | bucket_name=self.s3_bucket) 95 | .get_contents_as_string(encoding='utf-8')) 96 | 97 | docs = [json.loads(doc) for doc in data.split('\n')] 98 | 99 | self.method_mapper(mongo, docs) 100 | 101 | def method_mapper(self, mongo, docs): 102 | if self.mongo_method == 'insert': 103 | self.insert_records(mongo, docs) 104 | else: 105 | self.replace_records(mongo, docs) 106 | 107 | def insert_records(self, mongo, docs): 108 | if len(docs) == 1: 109 | mongo.insert_one(self.mongo_collection, 110 | docs[0], 111 | mongo_db=self.mongo_db) 112 | else: 113 | mongo.insert_many(self.mongo_collection, 114 | [doc for doc in docs], 115 | mongo_db=self.mongo_db) 116 | 117 | def replace_records(self, mongo, docs): 118 | operations = [] 119 | for doc in docs: 120 | mongo_replacement_filter = dict() 121 | if isinstance(self.mongo_replacement_filter, str): 122 | mongo_replacement_filter = {self.mongo_replacement_filter: doc.get(self.mongo_replacement_filter, False)} 123 | elif isinstance(self.mongo_replacement_filter, dict): 124 | for k, v in self.mongo_replacement_filter.items(): 125 | if k == v: 126 | mongo_replacement_filter[k] = doc.get(k, False) 127 | else: 128 | mongo_replacement_filter[k] = self.mongo_replacement_filter.get(k, False) 129 | 130 | operations.append(ReplaceOne(mongo_replacement_filter, 131 | doc, 132 | upsert=True)) 133 | 134 | # Send once every 1000 in batch 135 | if (len(operations) == 1000): 136 | logging.info('Making Request....') 137 | mongo.bulk_write(self.mongo_collection, 138 | operations, 139 | mongo_db=self.mongo_db, 140 | ordered=False) 141 | operations = [] 142 | logging.info('Request successfully finished....') 143 | 144 | if (len(operations) > 0): 145 | logging.info('Making Final Request....') 146 | mongo.bulk_write(self.mongo_collection, 147 | operations, 148 | mongo_db=self.mongo_db, 149 | ordered=False) 150 | logging.info('Final Request Finished.') 151 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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