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748 lines
25 KiB
Python
748 lines
25 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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from __future__ import annotations
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import logging
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from typing import Any
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from flask import make_response, request, Response
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from flask_appbuilder.api import expose, protect, rison, safe
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from flask_appbuilder.api.schemas import get_list_schema
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from flask_appbuilder.models.sqla.interface import SQLAInterface
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from marshmallow import ValidationError
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from pydantic import ValidationError as PydanticValidationError
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from superset import db, event_logger, is_feature_enabled
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from superset.commands.semantic_layer.create import CreateSemanticLayerCommand
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from superset.commands.semantic_layer.delete import DeleteSemanticLayerCommand
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from superset.commands.semantic_layer.exceptions import (
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SemanticLayerCreateFailedError,
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SemanticLayerDeleteFailedError,
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SemanticLayerInvalidError,
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SemanticLayerNotFoundError,
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SemanticLayerUpdateFailedError,
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SemanticViewForbiddenError,
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SemanticViewInvalidError,
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SemanticViewNotFoundError,
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SemanticViewUpdateFailedError,
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)
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from superset.commands.semantic_layer.update import (
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UpdateSemanticLayerCommand,
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UpdateSemanticViewCommand,
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)
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from superset.constants import MODEL_API_RW_METHOD_PERMISSION_MAP
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from superset.daos.semantic_layer import SemanticLayerDAO
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from superset.models.core import Database
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from superset.semantic_layers.models import SemanticLayer, SemanticView
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from superset.semantic_layers.registry import registry
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from superset.semantic_layers.schemas import (
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SemanticLayerPostSchema,
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SemanticLayerPutSchema,
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SemanticViewPutSchema,
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)
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from superset.superset_typing import FlaskResponse
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from superset.utils import json
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from superset.views.base_api import (
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BaseSupersetApi,
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BaseSupersetModelRestApi,
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requires_json,
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statsd_metrics,
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)
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logger = logging.getLogger(__name__)
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def _serialize_layer(layer: SemanticLayer) -> dict[str, Any]:
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config = layer.configuration
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if isinstance(config, str):
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config = json.loads(config)
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return {
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"uuid": str(layer.uuid),
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"name": layer.name,
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"description": layer.description,
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"type": layer.type,
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"cache_timeout": layer.cache_timeout,
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"configuration": config or {},
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"changed_on_delta_humanized": layer.changed_on_delta_humanized(),
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}
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def _infer_discriminators(
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schema: dict[str, Any],
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data: dict[str, Any],
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) -> dict[str, Any]:
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"""
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Infer discriminator values for union fields when the frontend omits them.
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Walks the schema's properties looking for discriminated unions (fields with a
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``discriminator.mapping``). For each one, tries to match the submitted data
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against one of the variants by checking which variant's required fields are
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present, then injects the discriminator value.
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"""
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defs = schema.get("$defs", {})
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for prop_name, prop_schema in schema.get("properties", {}).items():
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value = data.get(prop_name)
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if not isinstance(value, dict):
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continue
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# Find discriminated union via discriminator mapping
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mapping = (
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prop_schema.get("discriminator", {}).get("mapping")
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if "discriminator" in prop_schema
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else None
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)
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if not mapping:
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continue
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discriminator_field = prop_schema["discriminator"].get("propertyName")
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if not discriminator_field or discriminator_field in value:
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continue
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# Try each variant: match by required fields present in the data
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for disc_value, ref in mapping.items():
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ref_name = ref.rsplit("/", 1)[-1] if "/" in ref else ref
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variant_def = defs.get(ref_name, {})
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required = set(variant_def.get("required", []))
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# Exclude the discriminator itself from the check
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required.discard(discriminator_field)
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if required and required.issubset(value.keys()):
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data = {
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**data,
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prop_name: {**value, discriminator_field: disc_value},
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}
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break
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return data
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def _parse_partial_config(
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cls: Any,
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config: dict[str, Any],
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) -> Any:
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"""
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Parse a partial configuration, handling discriminator inference and
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falling back to lenient validation when strict parsing fails.
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"""
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config_class = cls.configuration_class
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# Infer discriminator values the frontend may have omitted
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schema = config_class.model_json_schema()
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config = _infer_discriminators(schema, config)
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try:
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return config_class.model_validate(config)
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except (PydanticValidationError, ValueError):
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pass
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try:
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return config_class.model_validate(config, context={"partial": True})
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except (PydanticValidationError, ValueError):
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return None
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class SemanticViewRestApi(BaseSupersetModelRestApi):
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datamodel = SQLAInterface(SemanticView)
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resource_name = "semantic_view"
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allow_browser_login = True
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class_permission_name = "SemanticView"
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method_permission_name = MODEL_API_RW_METHOD_PERMISSION_MAP
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include_route_methods = {"put"}
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edit_model_schema = SemanticViewPutSchema()
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@expose("/<pk>", methods=("PUT",))
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@protect()
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@statsd_metrics
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@event_logger.log_this_with_context(
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action=lambda self, *args, **kwargs: f"{self.__class__.__name__}.put",
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log_to_statsd=False,
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)
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@requires_json
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def put(self, pk: int) -> Response:
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"""Update a semantic view.
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---
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put:
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summary: Update a semantic view
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parameters:
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- in: path
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schema:
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type: integer
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name: pk
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requestBody:
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description: Semantic view schema
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required: true
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content:
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application/json:
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schema:
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$ref: '#/components/schemas/{{self.__class__.__name__}}.put'
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responses:
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200:
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description: Semantic view changed
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content:
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application/json:
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schema:
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type: object
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properties:
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id:
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type: number
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result:
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$ref: '#/components/schemas/{{self.__class__.__name__}}.put'
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400:
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$ref: '#/components/responses/400'
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401:
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$ref: '#/components/responses/401'
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403:
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$ref: '#/components/responses/403'
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404:
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$ref: '#/components/responses/404'
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422:
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$ref: '#/components/responses/422'
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500:
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$ref: '#/components/responses/500'
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"""
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try:
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item = self.edit_model_schema.load(request.json)
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except ValidationError as error:
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return self.response_400(message=error.messages)
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try:
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changed_model = UpdateSemanticViewCommand(pk, item).run()
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response = self.response(200, id=changed_model.id, result=item)
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except SemanticViewNotFoundError:
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response = self.response_404()
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except SemanticViewForbiddenError:
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response = self.response_403()
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except SemanticViewInvalidError as ex:
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response = self.response_422(message=ex.normalized_messages())
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except SemanticViewUpdateFailedError as ex:
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logger.error(
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"Error updating model %s: %s",
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self.__class__.__name__,
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str(ex),
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exc_info=True,
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)
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response = self.response_422(message=str(ex))
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return response
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class SemanticLayerRestApi(BaseSupersetApi):
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resource_name = "semantic_layer"
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allow_browser_login = True
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class_permission_name = "SemanticLayer"
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method_permission_name = {
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**MODEL_API_RW_METHOD_PERMISSION_MAP,
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"types": "read",
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"configuration_schema": "read",
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"runtime_schema": "read",
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}
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openapi_spec_tag = "Semantic Layers"
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add_model_schema = SemanticLayerPostSchema()
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edit_model_schema = SemanticLayerPutSchema()
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@expose("/types", methods=("GET",))
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@protect()
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@safe
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@statsd_metrics
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def types(self) -> FlaskResponse:
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"""List available semantic layer types.
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---
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get:
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summary: List available semantic layer types
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responses:
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200:
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description: A list of semantic layer types
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401:
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$ref: '#/components/responses/401'
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"""
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result = [
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{"id": key, "name": cls.name, "description": cls.description} # type: ignore[attr-defined]
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for key, cls in registry.items()
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]
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return self.response(200, result=result)
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@expose("/schema/configuration", methods=("POST",))
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@protect()
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@safe
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@statsd_metrics
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@requires_json
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def configuration_schema(self) -> FlaskResponse:
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"""Get configuration schema for a semantic layer type.
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---
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post:
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summary: Get configuration schema for a semantic layer type
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requestBody:
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required: true
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content:
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application/json:
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schema:
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type: object
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properties:
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type:
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type: string
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configuration:
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type: object
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responses:
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200:
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description: Configuration JSON Schema
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400:
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$ref: '#/components/responses/400'
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401:
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$ref: '#/components/responses/401'
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"""
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body = request.json or {}
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sl_type = body.get("type")
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cls = registry.get(sl_type) # type: ignore[arg-type]
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if not cls:
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return self.response_400(message=f"Unknown type: {sl_type}")
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parsed_config = None
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if config := body.get("configuration"):
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parsed_config = _parse_partial_config(cls, config)
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try:
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schema = cls.get_configuration_schema(parsed_config)
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except Exception: # pylint: disable=broad-except
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# Connection or query failures during schema enrichment should not
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# prevent the form from rendering — return the base schema instead.
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schema = cls.get_configuration_schema(None)
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resp = make_response(json.dumps({"result": schema}, sort_keys=False), 200)
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resp.headers["Content-Type"] = "application/json; charset=utf-8"
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return resp
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@expose("/<uuid>/schema/runtime", methods=("POST",))
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@protect()
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@safe
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@statsd_metrics
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def runtime_schema(self, uuid: str) -> FlaskResponse:
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"""Get runtime schema for a stored semantic layer.
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---
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post:
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summary: Get runtime schema for a semantic layer
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parameters:
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- in: path
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schema:
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type: string
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name: uuid
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requestBody:
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content:
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application/json:
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schema:
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type: object
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properties:
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runtime_data:
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type: object
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responses:
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200:
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description: Runtime JSON Schema
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401:
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$ref: '#/components/responses/401'
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404:
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$ref: '#/components/responses/404'
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"""
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layer = SemanticLayerDAO.find_by_uuid(uuid)
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if not layer:
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return self.response_404()
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body = request.get_json(silent=True) or {}
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runtime_data = body.get("runtime_data")
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cls = registry.get(layer.type)
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if not cls:
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return self.response_400(message=f"Unknown type: {layer.type}")
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try:
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schema = cls.get_runtime_schema(
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layer.implementation.configuration, # type: ignore[attr-defined]
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runtime_data,
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)
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except Exception as ex: # pylint: disable=broad-except
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return self.response_400(message=str(ex))
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return self.response(200, result=schema)
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@expose("/", methods=("POST",))
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@protect()
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@safe
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@statsd_metrics
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@requires_json
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def post(self) -> FlaskResponse:
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"""Create a semantic layer.
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---
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post:
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summary: Create a semantic layer
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requestBody:
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required: true
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content:
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application/json:
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schema:
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type: object
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properties:
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name:
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type: string
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description:
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type: string
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type:
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type: string
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configuration:
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type: object
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cache_timeout:
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type: integer
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responses:
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201:
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description: Semantic layer created
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400:
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$ref: '#/components/responses/400'
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401:
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$ref: '#/components/responses/401'
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422:
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$ref: '#/components/responses/422'
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"""
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try:
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item = self.add_model_schema.load(request.json)
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except ValidationError as error:
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return self.response_400(message=error.messages)
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try:
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new_model = CreateSemanticLayerCommand(item).run()
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return self.response(201, result={"uuid": str(new_model.uuid)})
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except SemanticLayerInvalidError as ex:
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return self.response_422(message=str(ex))
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except SemanticLayerCreateFailedError as ex:
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logger.error(
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"Error creating semantic layer: %s",
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str(ex),
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exc_info=True,
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)
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return self.response_422(message=str(ex))
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@expose("/<uuid>", methods=("PUT",))
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@protect()
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@safe
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@statsd_metrics
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@requires_json
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def put(self, uuid: str) -> FlaskResponse:
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"""Update a semantic layer.
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---
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put:
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summary: Update a semantic layer
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parameters:
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- in: path
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schema:
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type: string
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name: uuid
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requestBody:
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required: true
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content:
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application/json:
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schema:
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type: object
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properties:
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name:
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type: string
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description:
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type: string
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configuration:
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type: object
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cache_timeout:
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type: integer
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responses:
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200:
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description: Semantic layer updated
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400:
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$ref: '#/components/responses/400'
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401:
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$ref: '#/components/responses/401'
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404:
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$ref: '#/components/responses/404'
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422:
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$ref: '#/components/responses/422'
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"""
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try:
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item = self.edit_model_schema.load(request.json)
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except ValidationError as error:
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return self.response_400(message=error.messages)
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|
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try:
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changed_model = UpdateSemanticLayerCommand(uuid, item).run()
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return self.response(200, result={"uuid": str(changed_model.uuid)})
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except SemanticLayerNotFoundError:
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return self.response_404()
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except SemanticLayerInvalidError as ex:
|
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return self.response_422(message=str(ex))
|
|
except SemanticLayerUpdateFailedError as ex:
|
|
logger.error(
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"Error updating semantic layer: %s",
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str(ex),
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exc_info=True,
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)
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return self.response_422(message=str(ex))
|
|
|
|
@expose("/<uuid>", methods=("DELETE",))
|
|
@protect()
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|
@safe
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|
@statsd_metrics
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|
def delete(self, uuid: str) -> FlaskResponse:
|
|
"""Delete a semantic layer.
|
|
---
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|
delete:
|
|
summary: Delete a semantic layer
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parameters:
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- in: path
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schema:
|
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type: string
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name: uuid
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responses:
|
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200:
|
|
description: Semantic layer deleted
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|
401:
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|
$ref: '#/components/responses/401'
|
|
404:
|
|
$ref: '#/components/responses/404'
|
|
422:
|
|
$ref: '#/components/responses/422'
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"""
|
|
try:
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DeleteSemanticLayerCommand(uuid).run()
|
|
return self.response(200, message="OK")
|
|
except SemanticLayerNotFoundError:
|
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return self.response_404()
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except SemanticLayerDeleteFailedError as ex:
|
|
logger.error(
|
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"Error deleting semantic layer: %s",
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str(ex),
|
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exc_info=True,
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)
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return self.response_422(message=str(ex))
|
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|
|
@expose("/connections/", methods=("GET",))
|
|
@protect()
|
|
@safe
|
|
@statsd_metrics
|
|
@rison(get_list_schema)
|
|
@event_logger.log_this_with_context(
|
|
action=lambda self, *args, **kwargs: f"{self.__class__.__name__}.connections",
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log_to_statsd=False,
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)
|
|
def connections(self, **kwargs: Any) -> FlaskResponse:
|
|
"""List databases and semantic layers combined.
|
|
---
|
|
get:
|
|
summary: List databases and semantic layers combined
|
|
parameters:
|
|
- in: query
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name: q
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|
content:
|
|
application/json:
|
|
schema:
|
|
$ref: '#/components/schemas/get_list_schema'
|
|
responses:
|
|
200:
|
|
description: Combined list of databases and semantic layers
|
|
401:
|
|
$ref: '#/components/responses/401'
|
|
500:
|
|
$ref: '#/components/responses/500'
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|
"""
|
|
args = kwargs.get("rison", {})
|
|
page = args.get("page", 0)
|
|
page_size = args.get("page_size", 25)
|
|
order_column = args.get("order_column", "changed_on")
|
|
order_direction = args.get("order_direction", "desc")
|
|
filters = args.get("filters", [])
|
|
|
|
source_type, name_filter = self._parse_connection_filters(filters)
|
|
|
|
if not is_feature_enabled("SEMANTIC_LAYERS"):
|
|
source_type = "database"
|
|
|
|
all_items = self._fetch_connection_items(source_type, name_filter)
|
|
|
|
sort_key = self._get_connection_sort_key(order_column)
|
|
all_items.sort(key=sort_key, reverse=order_direction == "desc") # type: ignore
|
|
total_count = len(all_items)
|
|
|
|
start = page * page_size
|
|
page_items = all_items[start : start + page_size]
|
|
|
|
result = [
|
|
self._serialize_database(obj)
|
|
if item_type == "database"
|
|
else self._serialize_semantic_layer(obj)
|
|
for item_type, obj in page_items
|
|
]
|
|
|
|
return self.response(200, count=total_count, result=result)
|
|
|
|
@staticmethod
|
|
def _parse_connection_filters(
|
|
filters: list[dict[str, Any]],
|
|
) -> tuple[str, str | None]:
|
|
"""Parse filters into source_type and name_filter."""
|
|
source_type = "all"
|
|
name_filter = None
|
|
for f in filters:
|
|
if f.get("col") == "source_type":
|
|
source_type = f.get("value", "all")
|
|
elif f.get("col") == "database_name" and f.get("opr") == "ct":
|
|
name_filter = f.get("value")
|
|
return source_type, name_filter
|
|
|
|
@staticmethod
|
|
def _fetch_connection_items(
|
|
source_type: str,
|
|
name_filter: str | None,
|
|
) -> list[tuple[str, Any]]:
|
|
"""Fetch database and semantic layer items based on filters."""
|
|
db_items: list[tuple[str, Database]] = []
|
|
if source_type in ("all", "database"):
|
|
db_q = db.session.query(Database)
|
|
if name_filter:
|
|
db_q = db_q.filter(Database.database_name.ilike(f"%{name_filter}%"))
|
|
db_items = [("database", obj) for obj in db_q.all()]
|
|
|
|
sl_items: list[tuple[str, SemanticLayer]] = []
|
|
if source_type in ("all", "semantic_layer"):
|
|
sl_q = db.session.query(SemanticLayer)
|
|
if name_filter:
|
|
sl_q = sl_q.filter(SemanticLayer.name.ilike(f"%{name_filter}%"))
|
|
sl_items = [("semantic_layer", obj) for obj in sl_q.all()]
|
|
|
|
return db_items + sl_items # type: ignore
|
|
|
|
@staticmethod
|
|
def _get_connection_sort_key(order_column: str) -> Any:
|
|
"""Return a sort key function for connection items."""
|
|
|
|
def _sort_key_changed_on(
|
|
item: tuple[str, Database | SemanticLayer],
|
|
) -> float:
|
|
changed_on = item[1].changed_on
|
|
return changed_on.timestamp() if changed_on else 0.0
|
|
|
|
def _sort_key_name(
|
|
item: tuple[str, Database | SemanticLayer],
|
|
) -> str:
|
|
obj = item[1]
|
|
raw = (
|
|
obj.database_name # type: ignore[union-attr]
|
|
if item[0] == "database"
|
|
else obj.name
|
|
)
|
|
return raw.lower()
|
|
|
|
sort_key_map = {
|
|
"changed_on_delta_humanized": _sort_key_changed_on,
|
|
"database_name": _sort_key_name,
|
|
}
|
|
return sort_key_map.get(order_column, _sort_key_changed_on)
|
|
|
|
@staticmethod
|
|
def _serialize_database(obj: Database) -> dict[str, Any]:
|
|
changed_by = obj.changed_by
|
|
return {
|
|
"source_type": "database",
|
|
"id": obj.id,
|
|
"uuid": str(obj.uuid),
|
|
"database_name": obj.database_name,
|
|
"backend": obj.backend,
|
|
"allow_run_async": obj.allow_run_async,
|
|
"allow_dml": obj.allow_dml,
|
|
"allow_file_upload": obj.allow_file_upload,
|
|
"expose_in_sqllab": obj.expose_in_sqllab,
|
|
"changed_on_delta_humanized": obj.changed_on_delta_humanized(),
|
|
"changed_by": {
|
|
"first_name": changed_by.first_name,
|
|
"last_name": changed_by.last_name,
|
|
}
|
|
if changed_by
|
|
else None,
|
|
}
|
|
|
|
@staticmethod
|
|
def _serialize_semantic_layer(obj: SemanticLayer) -> dict[str, Any]:
|
|
changed_by = obj.changed_by
|
|
sl_type = obj.type
|
|
cls = registry.get(sl_type)
|
|
type_name = cls.name if cls else sl_type # type: ignore[attr-defined]
|
|
return {
|
|
"source_type": "semantic_layer",
|
|
"uuid": str(obj.uuid),
|
|
"database_name": obj.name,
|
|
"backend": type_name,
|
|
"sl_type": sl_type,
|
|
"description": obj.description,
|
|
"allow_run_async": None,
|
|
"allow_dml": None,
|
|
"allow_file_upload": None,
|
|
"expose_in_sqllab": None,
|
|
"changed_on_delta_humanized": obj.changed_on_delta_humanized(),
|
|
"changed_by": {
|
|
"first_name": changed_by.first_name,
|
|
"last_name": changed_by.last_name,
|
|
}
|
|
if changed_by
|
|
else None,
|
|
}
|
|
|
|
@expose("/", methods=("GET",))
|
|
@protect()
|
|
@safe
|
|
@statsd_metrics
|
|
def get_list(self) -> FlaskResponse:
|
|
"""List all semantic layers.
|
|
---
|
|
get:
|
|
summary: List all semantic layers
|
|
responses:
|
|
200:
|
|
description: A list of semantic layers
|
|
401:
|
|
$ref: '#/components/responses/401'
|
|
"""
|
|
layers = SemanticLayerDAO.find_all()
|
|
result = [_serialize_layer(layer) for layer in layers]
|
|
return self.response(200, result=result)
|
|
|
|
@expose("/<uuid>", methods=("GET",))
|
|
@protect()
|
|
@safe
|
|
@statsd_metrics
|
|
def get(self, uuid: str) -> FlaskResponse:
|
|
"""Get a single semantic layer.
|
|
---
|
|
get:
|
|
summary: Get a semantic layer by UUID
|
|
parameters:
|
|
- in: path
|
|
schema:
|
|
type: string
|
|
name: uuid
|
|
responses:
|
|
200:
|
|
description: A semantic layer
|
|
401:
|
|
$ref: '#/components/responses/401'
|
|
404:
|
|
$ref: '#/components/responses/404'
|
|
"""
|
|
layer = SemanticLayerDAO.find_by_uuid(uuid)
|
|
if not layer:
|
|
return self.response_404()
|
|
return self.response(200, result=_serialize_layer(layer))
|