databases.go

package kusto

// Copyright (c) Microsoft and contributors.  All rights reserved.
//
// 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.
//
// Code generated by Microsoft (R) AutoRest Code Generator.
// Changes may cause incorrect behavior and will be lost if the code is regenerated.

import (
	"context"
	"github.com/Azure/go-autorest/autorest"
	"github.com/Azure/go-autorest/autorest/azure"
	"github.com/Azure/go-autorest/autorest/validation"
	"github.com/Azure/go-autorest/tracing"
	"net/http"
)

// DatabasesClient is the the Azure Kusto management API provides a RESTful set of web services that interact with
// Azure Kusto services to manage your clusters and databases. The API enables you to create, update, and delete
// clusters and databases.
type DatabasesClient struct {
	BaseClient
}

// NewDatabasesClient creates an instance of the DatabasesClient client.
func NewDatabasesClient(subscriptionID string) DatabasesClient {
	return NewDatabasesClientWithBaseURI(DefaultBaseURI, subscriptionID)
}

// NewDatabasesClientWithBaseURI creates an instance of the DatabasesClient client using a custom endpoint.  Use this
// when interacting with an Azure cloud that uses a non-standard base URI (sovereign clouds, Azure stack).
func NewDatabasesClientWithBaseURI(baseURI string, subscriptionID string) DatabasesClient {
	return DatabasesClient{NewWithBaseURI(baseURI, subscriptionID)}
}

// AddPrincipals add Database principals permissions.
// Parameters:
// resourceGroupName - the name of the resource group containing the Kusto cluster.
// clusterName - the name of the Kusto cluster.
// databaseName - the name of the database in the Kusto cluster.
// databasePrincipalsToAdd - list of database principals to add.
func (client DatabasesClient) AddPrincipals(ctx context.Context, resourceGroupName string, clusterName string, databaseName string, databasePrincipalsToAdd DatabasePrincipalListRequest) (result DatabasePrincipalListResult, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/DatabasesClient.AddPrincipals")
		defer func() {
			sc := -1
			if result.Response.Response != nil {
				sc = result.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	req, err := client.AddPrincipalsPreparer(ctx, resourceGroupName, clusterName, databaseName, databasePrincipalsToAdd)
	if err != nil {
		err = autorest.NewErrorWithError(err, "kusto.DatabasesClient", "AddPrincipals", nil, "Failure preparing request")
		return
	}

	resp, err := client.AddPrincipalsSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "kusto.DatabasesClient", "AddPrincipals", resp, "Failure sending request")
		return
	}

	result, err = client.AddPrincipalsResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "kusto.DatabasesClient", "AddPrincipals", resp, "Failure responding to request")
		return
	}

	return
}

// AddPrincipalsPreparer prepares the AddPrincipals request.
func (client DatabasesClient) AddPrincipalsPreparer(ctx context.Context, resourceGroupName string, clusterName string, databaseName string, databasePrincipalsToAdd DatabasePrincipalListRequest) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"clusterName":       autorest.Encode("path", clusterName),
		"databaseName":      autorest.Encode("path", databaseName),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2018-09-07-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsContentType("application/json; charset=utf-8"),
		autorest.AsPost(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Kusto/clusters/{clusterName}/databases/{databaseName}/addPrincipals", pathParameters),
		autorest.WithJSON(databasePrincipalsToAdd),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// AddPrincipalsSender sends the AddPrincipals request. The method will close the
// http.Response Body if it receives an error.
func (client DatabasesClient) AddPrincipalsSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, azure.DoRetryWithRegistration(client.Client))
}

// AddPrincipalsResponder handles the response to the AddPrincipals request. The method always
// closes the http.Response Body.
func (client DatabasesClient) AddPrincipalsResponder(resp *http.Response) (result DatabasePrincipalListResult, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// CheckNameAvailability checks that the database name is valid and is not already in use.
// Parameters:
// resourceGroupName - the name of the resource group containing the Kusto cluster.
// clusterName - the name of the Kusto cluster.
// databaseName - the name of the database.
func (client DatabasesClient) CheckNameAvailability(ctx context.Context, resourceGroupName string, clusterName string, databaseName DatabaseCheckNameRequest) (result CheckNameResult, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/DatabasesClient.CheckNameAvailability")
		defer func() {
			sc := -1
			if result.Response.Response != nil {
				sc = result.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: databaseName,
			Constraints: []validation.Constraint{{Target: "databaseName.Name", Name: validation.Null, Rule: true, Chain: nil},
				{Target: "databaseName.Type", Name: validation.Null, Rule: true, Chain: nil}}}}); err != nil {
		return result, validation.NewError("kusto.DatabasesClient", "CheckNameAvailability", err.Error())
	}

	req, err := client.CheckNameAvailabilityPreparer(ctx, resourceGroupName, clusterName, databaseName)
	if err != nil {
		err = autorest.NewErrorWithError(err, "kusto.DatabasesClient", "CheckNameAvailability", nil, "Failure preparing request")
		return
	}

	resp, err := client.CheckNameAvailabilitySender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "kusto.DatabasesClient", "CheckNameAvailability", resp, "Failure sending request")
		return
	}

	result, err = client.CheckNameAvailabilityResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "kusto.DatabasesClient", "CheckNameAvailability", resp, "Failure responding to request")
		return
	}

	return
}

// CheckNameAvailabilityPreparer prepares the CheckNameAvailability request.
func (client DatabasesClient) CheckNameAvailabilityPreparer(ctx context.Context, resourceGroupName string, clusterName string, databaseName DatabaseCheckNameRequest) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"clusterName":       autorest.Encode("path", clusterName),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2018-09-07-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsContentType("application/json; charset=utf-8"),
		autorest.AsPost(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Kusto/clusters/{clusterName}/checkNameAvailability", pathParameters),
		autorest.WithJSON(databaseName),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// CheckNameAvailabilitySender sends the CheckNameAvailability request. The method will close the
// http.Response Body if it receives an error.
func (client DatabasesClient) CheckNameAvailabilitySender(req *http.Request) (*http.Response, error) {
	return client.Send(req, azure.DoRetryWithRegistration(client.Client))
}

// CheckNameAvailabilityResponder handles the response to the CheckNameAvailability request. The method always
// closes the http.Response Body.
func (client DatabasesClient) CheckNameAvailabilityResponder(resp *http.Response) (result CheckNameResult, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// CreateOrUpdate creates or updates a database.
// Parameters:
// resourceGroupName - the name of the resource group containing the Kusto cluster.
// clusterName - the name of the Kusto cluster.
// databaseName - the name of the database in the Kusto cluster.
// parameters - the database parameters supplied to the CreateOrUpdate operation.
func (client DatabasesClient) CreateOrUpdate(ctx context.Context, resourceGroupName string, clusterName string, databaseName string, parameters Database) (result DatabasesCreateOrUpdateFuture, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/DatabasesClient.CreateOrUpdate")
		defer func() {
			sc := -1
			if result.FutureAPI != nil && result.FutureAPI.Response() != nil {
				sc = result.FutureAPI.Response().StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: parameters,
			Constraints: []validation.Constraint{{Target: "parameters.DatabaseProperties", Name: validation.Null, Rule: false,
				Chain: []validation.Constraint{{Target: "parameters.DatabaseProperties.SoftDeletePeriodInDays", Name: validation.Null, Rule: true, Chain: nil}}}}}}); err != nil {
		return result, validation.NewError("kusto.DatabasesClient", "CreateOrUpdate", err.Error())
	}

	req, err := client.CreateOrUpdatePreparer(ctx, resourceGroupName, clusterName, databaseName, parameters)
	if err != nil {
		err = autorest.NewErrorWithError(err, "kusto.DatabasesClient", "CreateOrUpdate", nil, "Failure preparing request")
		return
	}

	result, err = client.CreateOrUpdateSender(req)
	if err != nil {
		err = autorest.NewErrorWithError(err, "kusto.DatabasesClient", "CreateOrUpdate", nil, "Failure sending request")
		return
	}

	return
}

// CreateOrUpdatePreparer prepares the CreateOrUpdate request.
func (client DatabasesClient) CreateOrUpdatePreparer(ctx context.Context, resourceGroupName string, clusterName string, databaseName string, parameters Database) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"clusterName":       autorest.Encode("path", clusterName),
		"databaseName":      autorest.Encode("path", databaseName),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2018-09-07-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	parameters.Etag = nil
	preparer := autorest.CreatePreparer(
		autorest.AsContentType("application/json; charset=utf-8"),
		autorest.AsPut(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Kusto/clusters/{clusterName}/databases/{databaseName}", pathParameters),
		autorest.WithJSON(parameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// CreateOrUpdateSender sends the CreateOrUpdate request. The method will close the
// http.Response Body if it receives an error.
func (client DatabasesClient) CreateOrUpdateSender(req *http.Request) (future DatabasesCreateOrUpdateFuture, err error) {
	var resp *http.Response
	resp, err = client.Send(req, azure.DoRetryWithRegistration(client.Client))
	if err != nil {
		return
	}
	var azf azure.Future
	azf, err = azure.NewFutureFromResponse(resp)
	future.FutureAPI = &azf
	future.Result = func(client DatabasesClient) (d Database, err error) {
		var done bool
		done, err = future.DoneWithContext(context.Background(), client)
		if err != nil {
			err = autorest.NewErrorWithError(err, "kusto.DatabasesCreateOrUpdateFuture", "Result", future.Response(), "Polling failure")
			return
		}
		if !done {
			err = azure.NewAsyncOpIncompleteError("kusto.DatabasesCreateOrUpdateFuture")
			return
		}
		sender := autorest.DecorateSender(client, autorest.DoRetryForStatusCodes(client.RetryAttempts, client.RetryDuration, autorest.StatusCodesForRetry...))
		d.Response.Response, err = future.GetResult(sender)
		if d.Response.Response == nil && err == nil {
			err = autorest.NewErrorWithError(err, "kusto.DatabasesCreateOrUpdateFuture", "Result", nil, "received nil response and error")
		}
		if err == nil && d.Response.Response.StatusCode != http.StatusNoContent {
			d, err = client.CreateOrUpdateResponder(d.Response.Response)
			if err != nil {
				err = autorest.NewErrorWithError(err, "kusto.DatabasesCreateOrUpdateFuture", "Result", d.Response.Response, "Failure responding to request")
			}
		}
		return
	}
	return
}

// CreateOrUpdateResponder handles the response to the CreateOrUpdate request. The method always
// closes the http.Response Body.
func (client DatabasesClient) CreateOrUpdateResponder(resp *http.Response) (result Database, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK, http.StatusCreated, http.StatusAccepted),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// Delete deletes the database with the given name.
// Parameters:
// resourceGroupName - the name of the resource group containing the Kusto cluster.
// clusterName - the name of the Kusto cluster.
// databaseName - the name of the database in the Kusto cluster.
func (client DatabasesClient) Delete(ctx context.Context, resourceGroupName string, clusterName string, databaseName string) (result DatabasesDeleteFuture, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/DatabasesClient.Delete")
		defer func() {
			sc := -1
			if result.FutureAPI != nil && result.FutureAPI.Response() != nil {
				sc = result.FutureAPI.Response().StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	req, err := client.DeletePreparer(ctx, resourceGroupName, clusterName, databaseName)
	if err != nil {
		err = autorest.NewErrorWithError(err, "kusto.DatabasesClient", "Delete", nil, "Failure preparing request")
		return
	}

	result, err = client.DeleteSender(req)
	if err != nil {
		err = autorest.NewErrorWithError(err, "kusto.DatabasesClient", "Delete", nil, "Failure sending request")
		return
	}

	return
}

// DeletePreparer prepares the Delete request.
func (client DatabasesClient) DeletePreparer(ctx context.Context, resourceGroupName string, clusterName string, databaseName string) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"clusterName":       autorest.Encode("path", clusterName),
		"databaseName":      autorest.Encode("path", databaseName),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2018-09-07-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsDelete(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Kusto/clusters/{clusterName}/databases/{databaseName}", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// DeleteSender sends the Delete request. The method will close the
// http.Response Body if it receives an error.
func (client DatabasesClient) DeleteSender(req *http.Request) (future DatabasesDeleteFuture, err error) {
	var resp *http.Response
	resp, err = client.Send(req, azure.DoRetryWithRegistration(client.Client))
	if err != nil {
		return
	}
	var azf azure.Future
	azf, err = azure.NewFutureFromResponse(resp)
	future.FutureAPI = &azf
	future.Result = func(client DatabasesClient) (ar autorest.Response, err error) {
		var done bool
		done, err = future.DoneWithContext(context.Background(), client)
		if err != nil {
			err = autorest.NewErrorWithError(err, "kusto.DatabasesDeleteFuture", "Result", future.Response(), "Polling failure")
			return
		}
		if !done {
			err = azure.NewAsyncOpIncompleteError("kusto.DatabasesDeleteFuture")
			return
		}
		ar.Response = future.Response()
		return
	}
	return
}

// DeleteResponder handles the response to the Delete request. The method always
// closes the http.Response Body.
func (client DatabasesClient) DeleteResponder(resp *http.Response) (result autorest.Response, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK, http.StatusAccepted, http.StatusNoContent),
		autorest.ByClosing())
	result.Response = resp
	return
}

// Get returns a database.
// Parameters:
// resourceGroupName - the name of the resource group containing the Kusto cluster.
// clusterName - the name of the Kusto cluster.
// databaseName - the name of the database in the Kusto cluster.
func (client DatabasesClient) Get(ctx context.Context, resourceGroupName string, clusterName string, databaseName string) (result Database, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/DatabasesClient.Get")
		defer func() {
			sc := -1
			if result.Response.Response != nil {
				sc = result.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	req, err := client.GetPreparer(ctx, resourceGroupName, clusterName, databaseName)
	if err != nil {
		err = autorest.NewErrorWithError(err, "kusto.DatabasesClient", "Get", nil, "Failure preparing request")
		return
	}

	resp, err := client.GetSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "kusto.DatabasesClient", "Get", resp, "Failure sending request")
		return
	}

	result, err = client.GetResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "kusto.DatabasesClient", "Get", resp, "Failure responding to request")
		return
	}

	return
}

// GetPreparer prepares the Get request.
func (client DatabasesClient) GetPreparer(ctx context.Context, resourceGroupName string, clusterName string, databaseName string) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"clusterName":       autorest.Encode("path", clusterName),
		"databaseName":      autorest.Encode("path", databaseName),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2018-09-07-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsGet(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Kusto/clusters/{clusterName}/databases/{databaseName}", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// GetSender sends the Get request. The method will close the
// http.Response Body if it receives an error.
func (client DatabasesClient) GetSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, azure.DoRetryWithRegistration(client.Client))
}

// GetResponder handles the response to the Get request. The method always
// closes the http.Response Body.
func (client DatabasesClient) GetResponder(resp *http.Response) (result Database, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// ListByCluster returns the list of databases of the given Kusto cluster.
// Parameters:
// resourceGroupName - the name of the resource group containing the Kusto cluster.
// clusterName - the name of the Kusto cluster.
func (client DatabasesClient) ListByCluster(ctx context.Context, resourceGroupName string, clusterName string) (result DatabaseListResult, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/DatabasesClient.ListByCluster")
		defer func() {
			sc := -1
			if result.Response.Response != nil {
				sc = result.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	req, err := client.ListByClusterPreparer(ctx, resourceGroupName, clusterName)
	if err != nil {
		err = autorest.NewErrorWithError(err, "kusto.DatabasesClient", "ListByCluster", nil, "Failure preparing request")
		return
	}

	resp, err := client.ListByClusterSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "kusto.DatabasesClient", "ListByCluster", resp, "Failure sending request")
		return
	}

	result, err = client.ListByClusterResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "kusto.DatabasesClient", "ListByCluster", resp, "Failure responding to request")
		return
	}

	return
}

// ListByClusterPreparer prepares the ListByCluster request.
func (client DatabasesClient) ListByClusterPreparer(ctx context.Context, resourceGroupName string, clusterName string) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"clusterName":       autorest.Encode("path", clusterName),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2018-09-07-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsGet(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Kusto/clusters/{clusterName}/databases", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// ListByClusterSender sends the ListByCluster request. The method will close the
// http.Response Body if it receives an error.
func (client DatabasesClient) ListByClusterSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, azure.DoRetryWithRegistration(client.Client))
}

// ListByClusterResponder handles the response to the ListByCluster request. The method always
// closes the http.Response Body.
func (client DatabasesClient) ListByClusterResponder(resp *http.Response) (result DatabaseListResult, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// ListPrincipals returns a list of database principals of the given Kusto cluster and database.
// Parameters:
// resourceGroupName - the name of the resource group containing the Kusto cluster.
// clusterName - the name of the Kusto cluster.
// databaseName - the name of the database in the Kusto cluster.
func (client DatabasesClient) ListPrincipals(ctx context.Context, resourceGroupName string, clusterName string, databaseName string) (result DatabasePrincipalListResult, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/DatabasesClient.ListPrincipals")
		defer func() {
			sc := -1
			if result.Response.Response != nil {
				sc = result.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	req, err := client.ListPrincipalsPreparer(ctx, resourceGroupName, clusterName, databaseName)
	if err != nil {
		err = autorest.NewErrorWithError(err, "kusto.DatabasesClient", "ListPrincipals", nil, "Failure preparing request")
		return
	}

	resp, err := client.ListPrincipalsSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "kusto.DatabasesClient", "ListPrincipals", resp, "Failure sending request")
		return
	}

	result, err = client.ListPrincipalsResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "kusto.DatabasesClient", "ListPrincipals", resp, "Failure responding to request")
		return
	}

	return
}

// ListPrincipalsPreparer prepares the ListPrincipals request.
func (client DatabasesClient) ListPrincipalsPreparer(ctx context.Context, resourceGroupName string, clusterName string, databaseName string) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"clusterName":       autorest.Encode("path", clusterName),
		"databaseName":      autorest.Encode("path", databaseName),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2018-09-07-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsPost(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Kusto/clusters/{clusterName}/databases/{databaseName}/listPrincipals", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// ListPrincipalsSender sends the ListPrincipals request. The method will close the
// http.Response Body if it receives an error.
func (client DatabasesClient) ListPrincipalsSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, azure.DoRetryWithRegistration(client.Client))
}

// ListPrincipalsResponder handles the response to the ListPrincipals request. The method always
// closes the http.Response Body.
func (client DatabasesClient) ListPrincipalsResponder(resp *http.Response) (result DatabasePrincipalListResult, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// RemovePrincipals remove Database principals permissions.
// Parameters:
// resourceGroupName - the name of the resource group containing the Kusto cluster.
// clusterName - the name of the Kusto cluster.
// databaseName - the name of the database in the Kusto cluster.
// databasePrincipalsToRemove - list of database principals to remove.
func (client DatabasesClient) RemovePrincipals(ctx context.Context, resourceGroupName string, clusterName string, databaseName string, databasePrincipalsToRemove DatabasePrincipalListRequest) (result DatabasePrincipalListResult, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/DatabasesClient.RemovePrincipals")
		defer func() {
			sc := -1
			if result.Response.Response != nil {
				sc = result.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	req, err := client.RemovePrincipalsPreparer(ctx, resourceGroupName, clusterName, databaseName, databasePrincipalsToRemove)
	if err != nil {
		err = autorest.NewErrorWithError(err, "kusto.DatabasesClient", "RemovePrincipals", nil, "Failure preparing request")
		return
	}

	resp, err := client.RemovePrincipalsSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "kusto.DatabasesClient", "RemovePrincipals", resp, "Failure sending request")
		return
	}

	result, err = client.RemovePrincipalsResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "kusto.DatabasesClient", "RemovePrincipals", resp, "Failure responding to request")
		return
	}

	return
}

// RemovePrincipalsPreparer prepares the RemovePrincipals request.
func (client DatabasesClient) RemovePrincipalsPreparer(ctx context.Context, resourceGroupName string, clusterName string, databaseName string, databasePrincipalsToRemove DatabasePrincipalListRequest) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"clusterName":       autorest.Encode("path", clusterName),
		"databaseName":      autorest.Encode("path", databaseName),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2018-09-07-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsContentType("application/json; charset=utf-8"),
		autorest.AsPost(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Kusto/clusters/{clusterName}/databases/{databaseName}/removePrincipals", pathParameters),
		autorest.WithJSON(databasePrincipalsToRemove),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// RemovePrincipalsSender sends the RemovePrincipals request. The method will close the
// http.Response Body if it receives an error.
func (client DatabasesClient) RemovePrincipalsSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, azure.DoRetryWithRegistration(client.Client))
}

// RemovePrincipalsResponder handles the response to the RemovePrincipals request. The method always
// closes the http.Response Body.
func (client DatabasesClient) RemovePrincipalsResponder(resp *http.Response) (result DatabasePrincipalListResult, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// Update updates a database.
// Parameters:
// resourceGroupName - the name of the resource group containing the Kusto cluster.
// clusterName - the name of the Kusto cluster.
// databaseName - the name of the database in the Kusto cluster.
// parameters - the database parameters supplied to the Update operation.
func (client DatabasesClient) Update(ctx context.Context, resourceGroupName string, clusterName string, databaseName string, parameters DatabaseUpdate) (result DatabasesUpdateFuture, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/DatabasesClient.Update")
		defer func() {
			sc := -1
			if result.FutureAPI != nil && result.FutureAPI.Response() != nil {
				sc = result.FutureAPI.Response().StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	req, err := client.UpdatePreparer(ctx, resourceGroupName, clusterName, databaseName, parameters)
	if err != nil {
		err = autorest.NewErrorWithError(err, "kusto.DatabasesClient", "Update", nil, "Failure preparing request")
		return
	}

	result, err = client.UpdateSender(req)
	if err != nil {
		err = autorest.NewErrorWithError(err, "kusto.DatabasesClient", "Update", nil, "Failure sending request")
		return
	}

	return
}

// UpdatePreparer prepares the Update request.
func (client DatabasesClient) UpdatePreparer(ctx context.Context, resourceGroupName string, clusterName string, databaseName string, parameters DatabaseUpdate) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"clusterName":       autorest.Encode("path", clusterName),
		"databaseName":      autorest.Encode("path", databaseName),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2018-09-07-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	parameters.Etag = nil
	preparer := autorest.CreatePreparer(
		autorest.AsContentType("application/json; charset=utf-8"),
		autorest.AsPatch(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Kusto/clusters/{clusterName}/databases/{databaseName}", pathParameters),
		autorest.WithJSON(parameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// UpdateSender sends the Update request. The method will close the
// http.Response Body if it receives an error.
func (client DatabasesClient) UpdateSender(req *http.Request) (future DatabasesUpdateFuture, err error) {
	var resp *http.Response
	resp, err = client.Send(req, azure.DoRetryWithRegistration(client.Client))
	if err != nil {
		return
	}
	var azf azure.Future
	azf, err = azure.NewFutureFromResponse(resp)
	future.FutureAPI = &azf
	future.Result = func(client DatabasesClient) (d Database, err error) {
		var done bool
		done, err = future.DoneWithContext(context.Background(), client)
		if err != nil {
			err = autorest.NewErrorWithError(err, "kusto.DatabasesUpdateFuture", "Result", future.Response(), "Polling failure")
			return
		}
		if !done {
			err = azure.NewAsyncOpIncompleteError("kusto.DatabasesUpdateFuture")
			return
		}
		sender := autorest.DecorateSender(client, autorest.DoRetryForStatusCodes(client.RetryAttempts, client.RetryDuration, autorest.StatusCodesForRetry...))
		d.Response.Response, err = future.GetResult(sender)
		if d.Response.Response == nil && err == nil {
			err = autorest.NewErrorWithError(err, "kusto.DatabasesUpdateFuture", "Result", nil, "received nil response and error")
		}
		if err == nil && d.Response.Response.StatusCode != http.StatusNoContent {
			d, err = client.UpdateResponder(d.Response.Response)
			if err != nil {
				err = autorest.NewErrorWithError(err, "kusto.DatabasesUpdateFuture", "Result", d.Response.Response, "Failure responding to request")
			}
		}
		return
	}
	return
}

// UpdateResponder handles the response to the Update request. The method always
// closes the http.Response Body.
func (client DatabasesClient) UpdateResponder(resp *http.Response) (result Database, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK, http.StatusCreated, http.StatusAccepted),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}