OpenMetadata/ingestion/src/metadata/utils/helpers.py

#  Copyright 2021 Collate
#  Licensed 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 datetime import datetime, timedelta
from typing import List

from pydantic import SecretStr

from metadata.generated.schema.api.services.createDashboardService import (
    CreateDashboardServiceRequest,
)
from metadata.generated.schema.api.services.createDatabaseService import (
    CreateDatabaseServiceRequest,
)
from metadata.generated.schema.api.services.createMessagingService import (
    CreateMessagingServiceRequest,
)
from metadata.generated.schema.api.services.createPipelineService import (
    CreatePipelineServiceRequest,
)
from metadata.generated.schema.api.services.createStorageService import (
    CreateStorageServiceRequest,
)
from metadata.generated.schema.entity.services.dashboardService import DashboardService
from metadata.generated.schema.entity.services.databaseService import DatabaseService
from metadata.generated.schema.entity.services.messagingService import MessagingService
from metadata.generated.schema.entity.services.pipelineService import PipelineService
from metadata.generated.schema.entity.services.storageService import StorageService
from metadata.ingestion.ometa.ometa_api import OpenMetadata


def get_start_and_end(duration):
    today = datetime.utcnow()
    start = (today + timedelta(0 - duration)).replace(
        hour=0, minute=0, second=0, microsecond=0
    )
    end = (today + timedelta(3)).replace(hour=0, minute=0, second=0, microsecond=0)
    return start, end


def snake_to_camel(s):
    a = s.split("_")
    a[0] = a[0].capitalize()
    if len(a) > 1:
        a[1:] = [u.title() for u in a[1:]]
    return "".join(a)


def get_database_service_or_create(
    config, metadata_config, service_name=None
) -> DatabaseService:
    metadata = OpenMetadata(metadata_config)
    config.service_name = service_name if service_name else config.service_name
    service = metadata.get_by_name(entity=DatabaseService, fqdn=config.service_name)
    if service:
        return service
    else:
        password = (
            config.password.get_secret_value()
            if hasattr(config, "password") and config.password
            else None
        )
        service = {
            "databaseConnection": {
                "hostPort": config.host_port if hasattr(config, "host_port") else None,
                "username": config.username if hasattr(config, "username") else None,
                "password": password,
                "database": config.database if hasattr(config, "database") else None,
                "connectionOptions": config.options
                if hasattr(config, "options")
                else None,
                "connectionArguments": config.connect_args
                if hasattr(config, "connect_args")
                else None,
            },
            "name": config.service_name,
            "description": "",
            "serviceType": config.get_service_type(),
        }
        created_service = metadata.create_or_update(
            CreateDatabaseServiceRequest(**service)
        )
        return created_service


def get_messaging_service_or_create(
    service_name: str,
    message_service_type: str,
    schema_registry_url: str,
    brokers: List[str],
    metadata_config,
) -> MessagingService:
    metadata = OpenMetadata(metadata_config)
    service = metadata.get_by_name(entity=MessagingService, fqdn=service_name)
    if service is not None:
        return service
    else:
        created_service = metadata.create_or_update(
            CreateMessagingServiceRequest(
                name=service_name,
                serviceType=message_service_type,
                brokers=brokers,
                schemaRegistry=schema_registry_url,
            )
        )
        return created_service


def get_dashboard_service_or_create(
    service_name: str,
    dashboard_service_type: str,
    username: str,
    password: str,
    dashboard_url: str,
    metadata_config,
) -> DashboardService:
    metadata = OpenMetadata(metadata_config)
    service = metadata.get_by_name(entity=DashboardService, fqdn=service_name)
    if service is not None:
        return service
    else:
        created_service = metadata.create_or_update(
            CreateDashboardServiceRequest(
                name=service_name,
                serviceType=dashboard_service_type,
                username=username,
                password=password,
                dashboardUrl=dashboard_url,
            )
        )
        return created_service


def get_pipeline_service_or_create(service_json, metadata_config) -> PipelineService:
    metadata = OpenMetadata(metadata_config)
    service = metadata.get_by_name(entity=PipelineService, fqdn=service_json["name"])
    if service is not None:
        return service
    else:
        created_service = metadata.create_or_update(
            CreatePipelineServiceRequest(**service_json)
        )
        return created_service


def get_storage_service_or_create(service_json, metadata_config) -> StorageService:
    metadata = OpenMetadata(metadata_config)
    service = metadata.get_by_name(entity=StorageService, fqdn=service_json["name"])
    if service is not None:
        return service
    else:
        created_service = metadata.create_or_update(
            CreateStorageServiceRequest(**service_json)
        )
        return created_service


def get_database_service_or_create_v2(service_json, metadata_config) -> DatabaseService:
    metadata = OpenMetadata(metadata_config)
    service = metadata.get_by_name(entity=DatabaseService, fqdn=service_json["name"])
    if service is not None:
        return service
    else:
        created_service = metadata.create_or_update(
            CreateDatabaseServiceRequest(**service_json)
        )
    return created_service


def convert_epoch_to_iso(seconds_since_epoch):
    dt = datetime.utcfromtimestamp(seconds_since_epoch)
    iso_format = dt.isoformat() + "Z"
    return iso_format