// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.
// Code generated by Microsoft (R) AutoRest Code Generator.

package com.azure.resourcemanager.servicebus.implementation;

import com.azure.core.annotation.BodyParam;
import com.azure.core.annotation.Delete;
import com.azure.core.annotation.ExpectedResponses;
import com.azure.core.annotation.Get;
import com.azure.core.annotation.HeaderParam;
import com.azure.core.annotation.Headers;
import com.azure.core.annotation.Host;
import com.azure.core.annotation.HostParam;
import com.azure.core.annotation.PathParam;
import com.azure.core.annotation.Put;
import com.azure.core.annotation.QueryParam;
import com.azure.core.annotation.ReturnType;
import com.azure.core.annotation.ServiceInterface;
import com.azure.core.annotation.ServiceMethod;
import com.azure.core.annotation.UnexpectedResponseExceptionType;
import com.azure.core.http.rest.PagedFlux;
import com.azure.core.http.rest.PagedIterable;
import com.azure.core.http.rest.PagedResponse;
import com.azure.core.http.rest.PagedResponseBase;
import com.azure.core.http.rest.Response;
import com.azure.core.http.rest.RestProxy;
import com.azure.core.management.exception.ManagementException;
import com.azure.core.util.Context;
import com.azure.core.util.FluxUtil;
import com.azure.resourcemanager.servicebus.fluent.RulesClient;
import com.azure.resourcemanager.servicebus.fluent.models.RuleInner;
import com.azure.resourcemanager.servicebus.models.RuleListResult;
import reactor.core.publisher.Mono;

/** An instance of this class provides access to all the operations defined in RulesClient. */
public final class RulesClientImpl implements RulesClient {
    /** The proxy service used to perform REST calls. */
    private final RulesService service;

    /** The service client containing this operation class. */
    private final ServiceBusManagementClientImpl client;

    /**
     * Initializes an instance of RulesClientImpl.
     *
     * @param client the instance of the service client containing this operation class.
     */
    RulesClientImpl(ServiceBusManagementClientImpl client) {
        this.service = RestProxy.create(RulesService.class, client.getHttpPipeline(), client.getSerializerAdapter());
        this.client = client;
    }

    /**
     * The interface defining all the services for ServiceBusManagementClientRules to be used by the proxy service to
     * perform REST calls.
     */
    @Host("{$host}")
    @ServiceInterface(name = "ServiceBusManagement")
    private interface RulesService {
        @Headers({"Content-Type: application/json"})
        @Get(
            "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ServiceBus"
                + "/namespaces/{namespaceName}/topics/{topicName}/subscriptions/{subscriptionName}/rules")
        @ExpectedResponses({200})
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono<Response<RuleListResult>> listBySubscriptions(
            @HostParam("$host") String endpoint,
            @PathParam("resourceGroupName") String resourceGroupName,
            @PathParam("namespaceName") String namespaceName,
            @PathParam("topicName") String topicName,
            @PathParam("subscriptionName") String subscriptionName,
            @QueryParam("api-version") String apiVersion,
            @PathParam("subscriptionId") String subscriptionId,
            @QueryParam("$skip") Integer skip,
            @QueryParam("$top") Integer top,
            @HeaderParam("Accept") String accept,
            Context context);

        @Headers({"Content-Type: application/json"})
        @Put(
            "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ServiceBus"
                + "/namespaces/{namespaceName}/topics/{topicName}/subscriptions/{subscriptionName}/rules/{ruleName}")
        @ExpectedResponses({200})
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono<Response<RuleInner>> createOrUpdate(
            @HostParam("$host") String endpoint,
            @PathParam("resourceGroupName") String resourceGroupName,
            @PathParam("namespaceName") String namespaceName,
            @PathParam("topicName") String topicName,
            @PathParam("subscriptionName") String subscriptionName,
            @PathParam("ruleName") String ruleName,
            @QueryParam("api-version") String apiVersion,
            @PathParam("subscriptionId") String subscriptionId,
            @BodyParam("application/json") RuleInner parameters,
            @HeaderParam("Accept") String accept,
            Context context);

        @Headers({"Content-Type: application/json"})
        @Delete(
            "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ServiceBus"
                + "/namespaces/{namespaceName}/topics/{topicName}/subscriptions/{subscriptionName}/rules/{ruleName}")
        @ExpectedResponses({200, 204})
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono<Response<Void>> delete(
            @HostParam("$host") String endpoint,
            @PathParam("resourceGroupName") String resourceGroupName,
            @PathParam("namespaceName") String namespaceName,
            @PathParam("topicName") String topicName,
            @PathParam("subscriptionName") String subscriptionName,
            @PathParam("ruleName") String ruleName,
            @QueryParam("api-version") String apiVersion,
            @PathParam("subscriptionId") String subscriptionId,
            @HeaderParam("Accept") String accept,
            Context context);

        @Headers({"Content-Type: application/json"})
        @Get(
            "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ServiceBus"
                + "/namespaces/{namespaceName}/topics/{topicName}/subscriptions/{subscriptionName}/rules/{ruleName}")
        @ExpectedResponses({200})
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono<Response<RuleInner>> get(
            @HostParam("$host") String endpoint,
            @PathParam("resourceGroupName") String resourceGroupName,
            @PathParam("namespaceName") String namespaceName,
            @PathParam("topicName") String topicName,
            @PathParam("subscriptionName") String subscriptionName,
            @PathParam("ruleName") String ruleName,
            @QueryParam("api-version") String apiVersion,
            @PathParam("subscriptionId") String subscriptionId,
            @HeaderParam("Accept") String accept,
            Context context);

        @Headers({"Content-Type: application/json"})
        @Get("{nextLink}")
        @ExpectedResponses({200})
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono<Response<RuleListResult>> listBySubscriptionsNext(
            @PathParam(value = "nextLink", encoded = true) String nextLink,
            @HostParam("$host") String endpoint,
            @HeaderParam("Accept") String accept,
            Context context);
    }

    /**
     * List all the rules within given topic-subscription.
     *
     * @param resourceGroupName Name of the Resource group within the Azure subscription.
     * @param namespaceName The namespace name.
     * @param topicName The topic name.
     * @param subscriptionName The subscription name.
     * @param skip Skip is only used if a previous operation returned a partial result. If a previous response contains
     *     a nextLink element, the value of the nextLink element will include a skip parameter that specifies a starting
     *     point to use for subsequent calls.
     * @param top May be used to limit the number of results to the most recent N usageDetails.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the response of the List rule operation along with {@link PagedResponse} on successful completion of
     *     {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<PagedResponse<RuleInner>> listBySubscriptionsSinglePageAsync(
        String resourceGroupName,
        String namespaceName,
        String topicName,
        String subscriptionName,
        Integer skip,
        Integer top) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (namespaceName == null) {
            return Mono.error(new IllegalArgumentException("Parameter namespaceName is required and cannot be null."));
        }
        if (topicName == null) {
            return Mono.error(new IllegalArgumentException("Parameter topicName is required and cannot be null."));
        }
        if (subscriptionName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter subscriptionName is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(
                context ->
                    service
                        .listBySubscriptions(
                            this.client.getEndpoint(),
                            resourceGroupName,
                            namespaceName,
                            topicName,
                            subscriptionName,
                            this.client.getApiVersion(),
                            this.client.getSubscriptionId(),
                            skip,
                            top,
                            accept,
                            context))
            .<PagedResponse<RuleInner>>map(
                res ->
                    new PagedResponseBase<>(
                        res.getRequest(),
                        res.getStatusCode(),
                        res.getHeaders(),
                        res.getValue().value(),
                        res.getValue().nextLink(),
                        null))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * List all the rules within given topic-subscription.
     *
     * @param resourceGroupName Name of the Resource group within the Azure subscription.
     * @param namespaceName The namespace name.
     * @param topicName The topic name.
     * @param subscriptionName The subscription name.
     * @param skip Skip is only used if a previous operation returned a partial result. If a previous response contains
     *     a nextLink element, the value of the nextLink element will include a skip parameter that specifies a starting
     *     point to use for subsequent calls.
     * @param top May be used to limit the number of results to the most recent N usageDetails.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the response of the List rule operation along with {@link PagedResponse} on successful completion of
     *     {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<PagedResponse<RuleInner>> listBySubscriptionsSinglePageAsync(
        String resourceGroupName,
        String namespaceName,
        String topicName,
        String subscriptionName,
        Integer skip,
        Integer top,
        Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (namespaceName == null) {
            return Mono.error(new IllegalArgumentException("Parameter namespaceName is required and cannot be null."));
        }
        if (topicName == null) {
            return Mono.error(new IllegalArgumentException("Parameter topicName is required and cannot be null."));
        }
        if (subscriptionName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter subscriptionName is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service
            .listBySubscriptions(
                this.client.getEndpoint(),
                resourceGroupName,
                namespaceName,
                topicName,
                subscriptionName,
                this.client.getApiVersion(),
                this.client.getSubscriptionId(),
                skip,
                top,
                accept,
                context)
            .map(
                res ->
                    new PagedResponseBase<>(
                        res.getRequest(),
                        res.getStatusCode(),
                        res.getHeaders(),
                        res.getValue().value(),
                        res.getValue().nextLink(),
                        null));
    }

    /**
     * List all the rules within given topic-subscription.
     *
     * @param resourceGroupName Name of the Resource group within the Azure subscription.
     * @param namespaceName The namespace name.
     * @param topicName The topic name.
     * @param subscriptionName The subscription name.
     * @param skip Skip is only used if a previous operation returned a partial result. If a previous response contains
     *     a nextLink element, the value of the nextLink element will include a skip parameter that specifies a starting
     *     point to use for subsequent calls.
     * @param top May be used to limit the number of results to the most recent N usageDetails.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the response of the List rule operation as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedFlux<RuleInner> listBySubscriptionsAsync(
        String resourceGroupName,
        String namespaceName,
        String topicName,
        String subscriptionName,
        Integer skip,
        Integer top) {
        return new PagedFlux<>(
            () ->
                listBySubscriptionsSinglePageAsync(
                    resourceGroupName, namespaceName, topicName, subscriptionName, skip, top),
            nextLink -> listBySubscriptionsNextSinglePageAsync(nextLink));
    }

    /**
     * List all the rules within given topic-subscription.
     *
     * @param resourceGroupName Name of the Resource group within the Azure subscription.
     * @param namespaceName The namespace name.
     * @param topicName The topic name.
     * @param subscriptionName The subscription name.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the response of the List rule operation as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedFlux<RuleInner> listBySubscriptionsAsync(
        String resourceGroupName, String namespaceName, String topicName, String subscriptionName) {
        final Integer skip = null;
        final Integer top = null;
        return new PagedFlux<>(
            () ->
                listBySubscriptionsSinglePageAsync(
                    resourceGroupName, namespaceName, topicName, subscriptionName, skip, top),
            nextLink -> listBySubscriptionsNextSinglePageAsync(nextLink));
    }

    /**
     * List all the rules within given topic-subscription.
     *
     * @param resourceGroupName Name of the Resource group within the Azure subscription.
     * @param namespaceName The namespace name.
     * @param topicName The topic name.
     * @param subscriptionName The subscription name.
     * @param skip Skip is only used if a previous operation returned a partial result. If a previous response contains
     *     a nextLink element, the value of the nextLink element will include a skip parameter that specifies a starting
     *     point to use for subsequent calls.
     * @param top May be used to limit the number of results to the most recent N usageDetails.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the response of the List rule operation as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    private PagedFlux<RuleInner> listBySubscriptionsAsync(
        String resourceGroupName,
        String namespaceName,
        String topicName,
        String subscriptionName,
        Integer skip,
        Integer top,
        Context context) {
        return new PagedFlux<>(
            () ->
                listBySubscriptionsSinglePageAsync(
                    resourceGroupName, namespaceName, topicName, subscriptionName, skip, top, context),
            nextLink -> listBySubscriptionsNextSinglePageAsync(nextLink, context));
    }

    /**
     * List all the rules within given topic-subscription.
     *
     * @param resourceGroupName Name of the Resource group within the Azure subscription.
     * @param namespaceName The namespace name.
     * @param topicName The topic name.
     * @param subscriptionName The subscription name.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the response of the List rule operation as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable<RuleInner> listBySubscriptions(
        String resourceGroupName, String namespaceName, String topicName, String subscriptionName) {
        final Integer skip = null;
        final Integer top = null;
        return new PagedIterable<>(
            listBySubscriptionsAsync(resourceGroupName, namespaceName, topicName, subscriptionName, skip, top));
    }

    /**
     * List all the rules within given topic-subscription.
     *
     * @param resourceGroupName Name of the Resource group within the Azure subscription.
     * @param namespaceName The namespace name.
     * @param topicName The topic name.
     * @param subscriptionName The subscription name.
     * @param skip Skip is only used if a previous operation returned a partial result. If a previous response contains
     *     a nextLink element, the value of the nextLink element will include a skip parameter that specifies a starting
     *     point to use for subsequent calls.
     * @param top May be used to limit the number of results to the most recent N usageDetails.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the response of the List rule operation as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable<RuleInner> listBySubscriptions(
        String resourceGroupName,
        String namespaceName,
        String topicName,
        String subscriptionName,
        Integer skip,
        Integer top,
        Context context) {
        return new PagedIterable<>(
            listBySubscriptionsAsync(
                resourceGroupName, namespaceName, topicName, subscriptionName, skip, top, context));
    }

    /**
     * Creates a new rule and updates an existing rule.
     *
     * @param resourceGroupName Name of the Resource group within the Azure subscription.
     * @param namespaceName The namespace name.
     * @param topicName The topic name.
     * @param subscriptionName The subscription name.
     * @param ruleName The rule name.
     * @param parameters Parameters supplied to create a rule.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return description of Rule Resource along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<Response<RuleInner>> createOrUpdateWithResponseAsync(
        String resourceGroupName,
        String namespaceName,
        String topicName,
        String subscriptionName,
        String ruleName,
        RuleInner parameters) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (namespaceName == null) {
            return Mono.error(new IllegalArgumentException("Parameter namespaceName is required and cannot be null."));
        }
        if (topicName == null) {
            return Mono.error(new IllegalArgumentException("Parameter topicName is required and cannot be null."));
        }
        if (subscriptionName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter subscriptionName is required and cannot be null."));
        }
        if (ruleName == null) {
            return Mono.error(new IllegalArgumentException("Parameter ruleName is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        if (parameters == null) {
            return Mono.error(new IllegalArgumentException("Parameter parameters is required and cannot be null."));
        } else {
            parameters.validate();
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(
                context ->
                    service
                        .createOrUpdate(
                            this.client.getEndpoint(),
                            resourceGroupName,
                            namespaceName,
                            topicName,
                            subscriptionName,
                            ruleName,
                            this.client.getApiVersion(),
                            this.client.getSubscriptionId(),
                            parameters,
                            accept,
                            context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Creates a new rule and updates an existing rule.
     *
     * @param resourceGroupName Name of the Resource group within the Azure subscription.
     * @param namespaceName The namespace name.
     * @param topicName The topic name.
     * @param subscriptionName The subscription name.
     * @param ruleName The rule name.
     * @param parameters Parameters supplied to create a rule.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return description of Rule Resource along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Response<RuleInner>> createOrUpdateWithResponseAsync(
        String resourceGroupName,
        String namespaceName,
        String topicName,
        String subscriptionName,
        String ruleName,
        RuleInner parameters,
        Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (namespaceName == null) {
            return Mono.error(new IllegalArgumentException("Parameter namespaceName is required and cannot be null."));
        }
        if (topicName == null) {
            return Mono.error(new IllegalArgumentException("Parameter topicName is required and cannot be null."));
        }
        if (subscriptionName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter subscriptionName is required and cannot be null."));
        }
        if (ruleName == null) {
            return Mono.error(new IllegalArgumentException("Parameter ruleName is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        if (parameters == null) {
            return Mono.error(new IllegalArgumentException("Parameter parameters is required and cannot be null."));
        } else {
            parameters.validate();
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service
            .createOrUpdate(
                this.client.getEndpoint(),
                resourceGroupName,
                namespaceName,
                topicName,
                subscriptionName,
                ruleName,
                this.client.getApiVersion(),
                this.client.getSubscriptionId(),
                parameters,
                accept,
                context);
    }

    /**
     * Creates a new rule and updates an existing rule.
     *
     * @param resourceGroupName Name of the Resource group within the Azure subscription.
     * @param namespaceName The namespace name.
     * @param topicName The topic name.
     * @param subscriptionName The subscription name.
     * @param ruleName The rule name.
     * @param parameters Parameters supplied to create a rule.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return description of Rule Resource on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<RuleInner> createOrUpdateAsync(
        String resourceGroupName,
        String namespaceName,
        String topicName,
        String subscriptionName,
        String ruleName,
        RuleInner parameters) {
        return createOrUpdateWithResponseAsync(
                resourceGroupName, namespaceName, topicName, subscriptionName, ruleName, parameters)
            .flatMap(res -> Mono.justOrEmpty(res.getValue()));
    }

    /**
     * Creates a new rule and updates an existing rule.
     *
     * @param resourceGroupName Name of the Resource group within the Azure subscription.
     * @param namespaceName The namespace name.
     * @param topicName The topic name.
     * @param subscriptionName The subscription name.
     * @param ruleName The rule name.
     * @param parameters Parameters supplied to create a rule.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return description of Rule Resource.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public RuleInner createOrUpdate(
        String resourceGroupName,
        String namespaceName,
        String topicName,
        String subscriptionName,
        String ruleName,
        RuleInner parameters) {
        return createOrUpdateAsync(resourceGroupName, namespaceName, topicName, subscriptionName, ruleName, parameters)
            .block();
    }

    /**
     * Creates a new rule and updates an existing rule.
     *
     * @param resourceGroupName Name of the Resource group within the Azure subscription.
     * @param namespaceName The namespace name.
     * @param topicName The topic name.
     * @param subscriptionName The subscription name.
     * @param ruleName The rule name.
     * @param parameters Parameters supplied to create a rule.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return description of Rule Resource along with {@link Response}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Response<RuleInner> createOrUpdateWithResponse(
        String resourceGroupName,
        String namespaceName,
        String topicName,
        String subscriptionName,
        String ruleName,
        RuleInner parameters,
        Context context) {
        return createOrUpdateWithResponseAsync(
                resourceGroupName, namespaceName, topicName, subscriptionName, ruleName, parameters, context)
            .block();
    }

    /**
     * Deletes an existing rule.
     *
     * @param resourceGroupName Name of the Resource group within the Azure subscription.
     * @param namespaceName The namespace name.
     * @param topicName The topic name.
     * @param subscriptionName The subscription name.
     * @param ruleName The rule name.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<Response<Void>> deleteWithResponseAsync(
        String resourceGroupName, String namespaceName, String topicName, String subscriptionName, String ruleName) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (namespaceName == null) {
            return Mono.error(new IllegalArgumentException("Parameter namespaceName is required and cannot be null."));
        }
        if (topicName == null) {
            return Mono.error(new IllegalArgumentException("Parameter topicName is required and cannot be null."));
        }
        if (subscriptionName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter subscriptionName is required and cannot be null."));
        }
        if (ruleName == null) {
            return Mono.error(new IllegalArgumentException("Parameter ruleName is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(
                context ->
                    service
                        .delete(
                            this.client.getEndpoint(),
                            resourceGroupName,
                            namespaceName,
                            topicName,
                            subscriptionName,
                            ruleName,
                            this.client.getApiVersion(),
                            this.client.getSubscriptionId(),
                            accept,
                            context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Deletes an existing rule.
     *
     * @param resourceGroupName Name of the Resource group within the Azure subscription.
     * @param namespaceName The namespace name.
     * @param topicName The topic name.
     * @param subscriptionName The subscription name.
     * @param ruleName The rule name.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Response<Void>> deleteWithResponseAsync(
        String resourceGroupName,
        String namespaceName,
        String topicName,
        String subscriptionName,
        String ruleName,
        Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (namespaceName == null) {
            return Mono.error(new IllegalArgumentException("Parameter namespaceName is required and cannot be null."));
        }
        if (topicName == null) {
            return Mono.error(new IllegalArgumentException("Parameter topicName is required and cannot be null."));
        }
        if (subscriptionName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter subscriptionName is required and cannot be null."));
        }
        if (ruleName == null) {
            return Mono.error(new IllegalArgumentException("Parameter ruleName is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service
            .delete(
                this.client.getEndpoint(),
                resourceGroupName,
                namespaceName,
                topicName,
                subscriptionName,
                ruleName,
                this.client.getApiVersion(),
                this.client.getSubscriptionId(),
                accept,
                context);
    }

    /**
     * Deletes an existing rule.
     *
     * @param resourceGroupName Name of the Resource group within the Azure subscription.
     * @param namespaceName The namespace name.
     * @param topicName The topic name.
     * @param subscriptionName The subscription name.
     * @param ruleName The rule name.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return A {@link Mono} that completes when a successful response is received.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<Void> deleteAsync(
        String resourceGroupName, String namespaceName, String topicName, String subscriptionName, String ruleName) {
        return deleteWithResponseAsync(resourceGroupName, namespaceName, topicName, subscriptionName, ruleName)
            .flatMap(ignored -> Mono.empty());
    }

    /**
     * Deletes an existing rule.
     *
     * @param resourceGroupName Name of the Resource group within the Azure subscription.
     * @param namespaceName The namespace name.
     * @param topicName The topic name.
     * @param subscriptionName The subscription name.
     * @param ruleName The rule name.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public void delete(
        String resourceGroupName, String namespaceName, String topicName, String subscriptionName, String ruleName) {
        deleteAsync(resourceGroupName, namespaceName, topicName, subscriptionName, ruleName).block();
    }

    /**
     * Deletes an existing rule.
     *
     * @param resourceGroupName Name of the Resource group within the Azure subscription.
     * @param namespaceName The namespace name.
     * @param topicName The topic name.
     * @param subscriptionName The subscription name.
     * @param ruleName The rule name.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link Response}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Response<Void> deleteWithResponse(
        String resourceGroupName,
        String namespaceName,
        String topicName,
        String subscriptionName,
        String ruleName,
        Context context) {
        return deleteWithResponseAsync(resourceGroupName, namespaceName, topicName, subscriptionName, ruleName, context)
            .block();
    }

    /**
     * Retrieves the description for the specified rule.
     *
     * @param resourceGroupName Name of the Resource group within the Azure subscription.
     * @param namespaceName The namespace name.
     * @param topicName The topic name.
     * @param subscriptionName The subscription name.
     * @param ruleName The rule name.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return description of Rule Resource along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<Response<RuleInner>> getWithResponseAsync(
        String resourceGroupName, String namespaceName, String topicName, String subscriptionName, String ruleName) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (namespaceName == null) {
            return Mono.error(new IllegalArgumentException("Parameter namespaceName is required and cannot be null."));
        }
        if (topicName == null) {
            return Mono.error(new IllegalArgumentException("Parameter topicName is required and cannot be null."));
        }
        if (subscriptionName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter subscriptionName is required and cannot be null."));
        }
        if (ruleName == null) {
            return Mono.error(new IllegalArgumentException("Parameter ruleName is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(
                context ->
                    service
                        .get(
                            this.client.getEndpoint(),
                            resourceGroupName,
                            namespaceName,
                            topicName,
                            subscriptionName,
                            ruleName,
                            this.client.getApiVersion(),
                            this.client.getSubscriptionId(),
                            accept,
                            context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Retrieves the description for the specified rule.
     *
     * @param resourceGroupName Name of the Resource group within the Azure subscription.
     * @param namespaceName The namespace name.
     * @param topicName The topic name.
     * @param subscriptionName The subscription name.
     * @param ruleName The rule name.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return description of Rule Resource along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Response<RuleInner>> getWithResponseAsync(
        String resourceGroupName,
        String namespaceName,
        String topicName,
        String subscriptionName,
        String ruleName,
        Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (namespaceName == null) {
            return Mono.error(new IllegalArgumentException("Parameter namespaceName is required and cannot be null."));
        }
        if (topicName == null) {
            return Mono.error(new IllegalArgumentException("Parameter topicName is required and cannot be null."));
        }
        if (subscriptionName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter subscriptionName is required and cannot be null."));
        }
        if (ruleName == null) {
            return Mono.error(new IllegalArgumentException("Parameter ruleName is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service
            .get(
                this.client.getEndpoint(),
                resourceGroupName,
                namespaceName,
                topicName,
                subscriptionName,
                ruleName,
                this.client.getApiVersion(),
                this.client.getSubscriptionId(),
                accept,
                context);
    }

    /**
     * Retrieves the description for the specified rule.
     *
     * @param resourceGroupName Name of the Resource group within the Azure subscription.
     * @param namespaceName The namespace name.
     * @param topicName The topic name.
     * @param subscriptionName The subscription name.
     * @param ruleName The rule name.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return description of Rule Resource on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<RuleInner> getAsync(
        String resourceGroupName, String namespaceName, String topicName, String subscriptionName, String ruleName) {
        return getWithResponseAsync(resourceGroupName, namespaceName, topicName, subscriptionName, ruleName)
            .flatMap(res -> Mono.justOrEmpty(res.getValue()));
    }

    /**
     * Retrieves the description for the specified rule.
     *
     * @param resourceGroupName Name of the Resource group within the Azure subscription.
     * @param namespaceName The namespace name.
     * @param topicName The topic name.
     * @param subscriptionName The subscription name.
     * @param ruleName The rule name.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return description of Rule Resource.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public RuleInner get(
        String resourceGroupName, String namespaceName, String topicName, String subscriptionName, String ruleName) {
        return getAsync(resourceGroupName, namespaceName, topicName, subscriptionName, ruleName).block();
    }

    /**
     * Retrieves the description for the specified rule.
     *
     * @param resourceGroupName Name of the Resource group within the Azure subscription.
     * @param namespaceName The namespace name.
     * @param topicName The topic name.
     * @param subscriptionName The subscription name.
     * @param ruleName The rule name.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return description of Rule Resource along with {@link Response}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Response<RuleInner> getWithResponse(
        String resourceGroupName,
        String namespaceName,
        String topicName,
        String subscriptionName,
        String ruleName,
        Context context) {
        return getWithResponseAsync(resourceGroupName, namespaceName, topicName, subscriptionName, ruleName, context)
            .block();
    }

    /**
     * Get the next page of items.
     *
     * @param nextLink The URL to get the next list of items
     *     <p>The nextLink parameter.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the response of the List rule operation along with {@link PagedResponse} on successful completion of
     *     {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<PagedResponse<RuleInner>> listBySubscriptionsNextSinglePageAsync(String nextLink) {
        if (nextLink == null) {
            return Mono.error(new IllegalArgumentException("Parameter nextLink is required and cannot be null."));
        }
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(
                context -> service.listBySubscriptionsNext(nextLink, this.client.getEndpoint(), accept, context))
            .<PagedResponse<RuleInner>>map(
                res ->
                    new PagedResponseBase<>(
                        res.getRequest(),
                        res.getStatusCode(),
                        res.getHeaders(),
                        res.getValue().value(),
                        res.getValue().nextLink(),
                        null))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Get the next page of items.
     *
     * @param nextLink The URL to get the next list of items
     *     <p>The nextLink parameter.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the response of the List rule operation along with {@link PagedResponse} on successful completion of
     *     {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<PagedResponse<RuleInner>> listBySubscriptionsNextSinglePageAsync(String nextLink, Context context) {
        if (nextLink == null) {
            return Mono.error(new IllegalArgumentException("Parameter nextLink is required and cannot be null."));
        }
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service
            .listBySubscriptionsNext(nextLink, this.client.getEndpoint(), accept, context)
            .map(
                res ->
                    new PagedResponseBase<>(
                        res.getRequest(),
                        res.getStatusCode(),
                        res.getHeaders(),
                        res.getValue().value(),
                        res.getValue().nextLink(),
                        null));
    }
}
