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This package contains Microsoft Azure Monitor SDK. For documentation on how to use this package, please see https://aka.ms/azsdk/java/mgmt
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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.
// Code generated by Microsoft (R) AutoRest Code Generator.

package com.azure.resourcemanager.monitor.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.Patch;
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.monitor.fluent.AlertRulesClient;
import com.azure.resourcemanager.monitor.fluent.models.AlertRuleResourceInner;
import com.azure.resourcemanager.monitor.models.AlertRuleResourceCollection;
import com.azure.resourcemanager.monitor.models.AlertRuleResourcePatch;
import com.azure.resourcemanager.resources.fluentcore.collection.InnerSupportsDelete;
import com.azure.resourcemanager.resources.fluentcore.collection.InnerSupportsGet;
import com.azure.resourcemanager.resources.fluentcore.collection.InnerSupportsListing;
import reactor.core.publisher.Mono;

/**
 * An instance of this class provides access to all the operations defined in AlertRulesClient.
 */
public final class AlertRulesClientImpl implements InnerSupportsGet,
    InnerSupportsListing, InnerSupportsDelete, AlertRulesClient {
    /**
     * The proxy service used to perform REST calls.
     */
    private final AlertRulesService service;

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

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

    /**
     * The interface defining all the services for MonitorClientAlertRules to be used by the proxy service to perform
     * REST calls.
     */
    @Host("{$host}")
    @ServiceInterface(name = "MonitorClientAlertRu")
    public interface AlertRulesService {
        @Headers({ "Content-Type: application/json" })
        @Put("/subscriptions/{subscriptionId}/resourcegroups/{resourceGroupName}/providers/Microsoft.Insights/alertrules/{ruleName}")
        @ExpectedResponses({ 200, 201 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono> createOrUpdate(@HostParam("$host") String endpoint,
            @PathParam("resourceGroupName") String resourceGroupName, @PathParam("ruleName") String ruleName,
            @QueryParam("api-version") String apiVersion, @PathParam("subscriptionId") String subscriptionId,
            @BodyParam("application/json") AlertRuleResourceInner parameters, @HeaderParam("Accept") String accept,
            Context context);

        @Headers({ "Content-Type: application/json" })
        @Delete("/subscriptions/{subscriptionId}/resourcegroups/{resourceGroupName}/providers/Microsoft.Insights/alertrules/{ruleName}")
        @ExpectedResponses({ 200, 204 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono> delete(@HostParam("$host") String endpoint,
            @PathParam("resourceGroupName") String resourceGroupName, @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.Insights/alertrules/{ruleName}")
        @ExpectedResponses({ 200 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono> getByResourceGroup(@HostParam("$host") String endpoint,
            @PathParam("resourceGroupName") String resourceGroupName, @PathParam("ruleName") String ruleName,
            @QueryParam("api-version") String apiVersion, @PathParam("subscriptionId") String subscriptionId,
            @HeaderParam("Accept") String accept, Context context);

        @Headers({ "Content-Type: application/json" })
        @Patch("/subscriptions/{subscriptionId}/resourcegroups/{resourceGroupName}/providers/Microsoft.Insights/alertrules/{ruleName}")
        @ExpectedResponses({ 200, 201 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono> update(@HostParam("$host") String endpoint,
            @PathParam("subscriptionId") String subscriptionId,
            @PathParam("resourceGroupName") String resourceGroupName, @PathParam("ruleName") String ruleName,
            @QueryParam("api-version") String apiVersion,
            @BodyParam("application/json") AlertRuleResourcePatch alertRulesResource,
            @HeaderParam("Accept") String accept, Context context);

        @Headers({ "Content-Type: application/json" })
        @Get("/subscriptions/{subscriptionId}/resourcegroups/{resourceGroupName}/providers/Microsoft.Insights/alertrules")
        @ExpectedResponses({ 200 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono> listByResourceGroup(@HostParam("$host") String endpoint,
            @PathParam("resourceGroupName") String resourceGroupName, @QueryParam("api-version") String apiVersion,
            @PathParam("subscriptionId") String subscriptionId, @HeaderParam("Accept") String accept, Context context);

        @Headers({ "Content-Type: application/json" })
        @Get("/subscriptions/{subscriptionId}/providers/Microsoft.Insights/alertrules")
        @ExpectedResponses({ 200 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono> list(@HostParam("$host") String endpoint,
            @QueryParam("api-version") String apiVersion, @PathParam("subscriptionId") String subscriptionId,
            @HeaderParam("Accept") String accept, Context context);
    }

    /**
     * Creates or updates a classic metric alert rule.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param ruleName The name of the rule.
     * @param parameters The parameters of the rule to create or update.
     * @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 alert rule resource along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono> createOrUpdateWithResponseAsync(String resourceGroupName,
        String ruleName, AlertRuleResourceInner 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 (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 apiVersion = "2016-03-01";
        final String accept = "application/json";
        return FluxUtil
            .withContext(context -> service.createOrUpdate(this.client.getEndpoint(), resourceGroupName, ruleName,
                apiVersion, this.client.getSubscriptionId(), parameters, accept, context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Creates or updates a classic metric alert rule.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param ruleName The name of the rule.
     * @param parameters The parameters of the rule to create or update.
     * @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 alert rule resource along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> createOrUpdateWithResponseAsync(String resourceGroupName,
        String ruleName, AlertRuleResourceInner 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 (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 apiVersion = "2016-03-01";
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service.createOrUpdate(this.client.getEndpoint(), resourceGroupName, ruleName, apiVersion,
            this.client.getSubscriptionId(), parameters, accept, context);
    }

    /**
     * Creates or updates a classic metric alert rule.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param ruleName The name of the rule.
     * @param parameters The parameters of the rule to create or update.
     * @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 alert rule resource on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono createOrUpdateAsync(String resourceGroupName, String ruleName,
        AlertRuleResourceInner parameters) {
        return createOrUpdateWithResponseAsync(resourceGroupName, ruleName, parameters)
            .flatMap(res -> Mono.justOrEmpty(res.getValue()));
    }

    /**
     * Creates or updates a classic metric alert rule.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param ruleName The name of the rule.
     * @param parameters The parameters of the rule to create or update.
     * @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 alert rule resource along with {@link Response}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Response createOrUpdateWithResponse(String resourceGroupName, String ruleName,
        AlertRuleResourceInner parameters, Context context) {
        return createOrUpdateWithResponseAsync(resourceGroupName, ruleName, parameters, context).block();
    }

    /**
     * Creates or updates a classic metric alert rule.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param ruleName The name of the rule.
     * @param parameters The parameters of the rule to create or update.
     * @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 alert rule resource.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public AlertRuleResourceInner createOrUpdate(String resourceGroupName, String ruleName,
        AlertRuleResourceInner parameters) {
        return createOrUpdateWithResponse(resourceGroupName, ruleName, parameters, Context.NONE).getValue();
    }

    /**
     * Deletes a classic metric alert rule.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param ruleName The name of the 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 the {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono> deleteWithResponseAsync(String resourceGroupName, 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 (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 apiVersion = "2016-03-01";
        final String accept = "application/json";
        return FluxUtil
            .withContext(context -> service.delete(this.client.getEndpoint(), resourceGroupName, ruleName, apiVersion,
                this.client.getSubscriptionId(), accept, context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Deletes a classic metric alert rule.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param ruleName The name of the 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 the {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> deleteWithResponseAsync(String resourceGroupName, 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 (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 apiVersion = "2016-03-01";
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service.delete(this.client.getEndpoint(), resourceGroupName, ruleName, apiVersion,
            this.client.getSubscriptionId(), accept, context);
    }

    /**
     * Deletes a classic metric alert rule.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param ruleName The name of the 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 A {@link Mono} that completes when a successful response is received.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono deleteAsync(String resourceGroupName, String ruleName) {
        return deleteWithResponseAsync(resourceGroupName, ruleName).flatMap(ignored -> Mono.empty());
    }

    /**
     * Deletes a classic metric alert rule.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param ruleName The name of the 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 the {@link Response}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Response deleteWithResponse(String resourceGroupName, String ruleName, Context context) {
        return deleteWithResponseAsync(resourceGroupName, ruleName, context).block();
    }

    /**
     * Deletes a classic metric alert rule.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param ruleName The name of the 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.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public void delete(String resourceGroupName, String ruleName) {
        deleteWithResponse(resourceGroupName, ruleName, Context.NONE);
    }

    /**
     * Gets a classic metric alert rule.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param ruleName The name of the 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 a classic metric alert rule along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono> getByResourceGroupWithResponseAsync(String resourceGroupName,
        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 (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 apiVersion = "2016-03-01";
        final String accept = "application/json";
        return FluxUtil
            .withContext(context -> service.getByResourceGroup(this.client.getEndpoint(), resourceGroupName, ruleName,
                apiVersion, this.client.getSubscriptionId(), accept, context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Gets a classic metric alert rule.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param ruleName The name of the 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 a classic metric alert rule along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> getByResourceGroupWithResponseAsync(String resourceGroupName,
        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 (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 apiVersion = "2016-03-01";
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service.getByResourceGroup(this.client.getEndpoint(), resourceGroupName, ruleName, apiVersion,
            this.client.getSubscriptionId(), accept, context);
    }

    /**
     * Gets a classic metric alert rule.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param ruleName The name of the 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 a classic metric alert rule on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono getByResourceGroupAsync(String resourceGroupName, String ruleName) {
        return getByResourceGroupWithResponseAsync(resourceGroupName, ruleName)
            .flatMap(res -> Mono.justOrEmpty(res.getValue()));
    }

    /**
     * Gets a classic metric alert rule.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param ruleName The name of the 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 a classic metric alert rule along with {@link Response}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Response getByResourceGroupWithResponse(String resourceGroupName, String ruleName,
        Context context) {
        return getByResourceGroupWithResponseAsync(resourceGroupName, ruleName, context).block();
    }

    /**
     * Gets a classic metric alert rule.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param ruleName The name of the 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 a classic metric alert rule.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public AlertRuleResourceInner getByResourceGroup(String resourceGroupName, String ruleName) {
        return getByResourceGroupWithResponse(resourceGroupName, ruleName, Context.NONE).getValue();
    }

    /**
     * Updates an existing classic metric AlertRuleResource. To update other fields use the CreateOrUpdate method.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param ruleName The name of the rule.
     * @param alertRulesResource Parameters supplied to the 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 alert rule resource along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono> updateWithResponseAsync(String resourceGroupName, String ruleName,
        AlertRuleResourcePatch alertRulesResource) {
        if (this.client.getEndpoint() == null) {
            return Mono.error(
                new IllegalArgumentException("Parameter this.client.getEndpoint() 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 (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (ruleName == null) {
            return Mono.error(new IllegalArgumentException("Parameter ruleName is required and cannot be null."));
        }
        if (alertRulesResource == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter alertRulesResource is required and cannot be null."));
        } else {
            alertRulesResource.validate();
        }
        final String apiVersion = "2016-03-01";
        final String accept = "application/json";
        return FluxUtil
            .withContext(context -> service.update(this.client.getEndpoint(), this.client.getSubscriptionId(),
                resourceGroupName, ruleName, apiVersion, alertRulesResource, accept, context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Updates an existing classic metric AlertRuleResource. To update other fields use the CreateOrUpdate method.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param ruleName The name of the rule.
     * @param alertRulesResource Parameters supplied to the operation.
     * @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 alert rule resource along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> updateWithResponseAsync(String resourceGroupName, String ruleName,
        AlertRuleResourcePatch alertRulesResource, Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono.error(
                new IllegalArgumentException("Parameter this.client.getEndpoint() 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 (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (ruleName == null) {
            return Mono.error(new IllegalArgumentException("Parameter ruleName is required and cannot be null."));
        }
        if (alertRulesResource == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter alertRulesResource is required and cannot be null."));
        } else {
            alertRulesResource.validate();
        }
        final String apiVersion = "2016-03-01";
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service.update(this.client.getEndpoint(), this.client.getSubscriptionId(), resourceGroupName, ruleName,
            apiVersion, alertRulesResource, accept, context);
    }

    /**
     * Updates an existing classic metric AlertRuleResource. To update other fields use the CreateOrUpdate method.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param ruleName The name of the rule.
     * @param alertRulesResource Parameters supplied to the 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 alert rule resource on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono updateAsync(String resourceGroupName, String ruleName,
        AlertRuleResourcePatch alertRulesResource) {
        return updateWithResponseAsync(resourceGroupName, ruleName, alertRulesResource)
            .flatMap(res -> Mono.justOrEmpty(res.getValue()));
    }

    /**
     * Updates an existing classic metric AlertRuleResource. To update other fields use the CreateOrUpdate method.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param ruleName The name of the rule.
     * @param alertRulesResource Parameters supplied to the operation.
     * @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 alert rule resource along with {@link Response}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Response updateWithResponse(String resourceGroupName, String ruleName,
        AlertRuleResourcePatch alertRulesResource, Context context) {
        return updateWithResponseAsync(resourceGroupName, ruleName, alertRulesResource, context).block();
    }

    /**
     * Updates an existing classic metric AlertRuleResource. To update other fields use the CreateOrUpdate method.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param ruleName The name of the rule.
     * @param alertRulesResource Parameters supplied to the 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 alert rule resource.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public AlertRuleResourceInner update(String resourceGroupName, String ruleName,
        AlertRuleResourcePatch alertRulesResource) {
        return updateWithResponse(resourceGroupName, ruleName, alertRulesResource, Context.NONE).getValue();
    }

    /**
     * List the classic metric alert rules within a resource group.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @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 represents a collection of alert rule resources along with {@link PagedResponse} on successful completion
     * of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> listByResourceGroupSinglePageAsync(String resourceGroupName) {
        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 (this.client.getSubscriptionId() == null) {
            return Mono.error(new IllegalArgumentException(
                "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        final String apiVersion = "2016-03-01";
        final String accept = "application/json";
        return FluxUtil
            .withContext(context -> service.listByResourceGroup(this.client.getEndpoint(), resourceGroupName,
                apiVersion, this.client.getSubscriptionId(), accept, context))
            .>map(res -> new PagedResponseBase<>(res.getRequest(),
                res.getStatusCode(), res.getHeaders(), res.getValue().value(), null, null))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * List the classic metric alert rules within a resource group.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @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 represents a collection of alert rule resources along with {@link PagedResponse} on successful completion
     * of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> listByResourceGroupSinglePageAsync(String resourceGroupName,
        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 (this.client.getSubscriptionId() == null) {
            return Mono.error(new IllegalArgumentException(
                "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        final String apiVersion = "2016-03-01";
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service
            .listByResourceGroup(this.client.getEndpoint(), resourceGroupName, apiVersion,
                this.client.getSubscriptionId(), accept, context)
            .map(res -> new PagedResponseBase<>(res.getRequest(), res.getStatusCode(), res.getHeaders(),
                res.getValue().value(), null, null));
    }

    /**
     * List the classic metric alert rules within a resource group.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @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 represents a collection of alert rule resources as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedFlux listByResourceGroupAsync(String resourceGroupName) {
        return new PagedFlux<>(() -> listByResourceGroupSinglePageAsync(resourceGroupName));
    }

    /**
     * List the classic metric alert rules within a resource group.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @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 represents a collection of alert rule resources as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    private PagedFlux listByResourceGroupAsync(String resourceGroupName, Context context) {
        return new PagedFlux<>(() -> listByResourceGroupSinglePageAsync(resourceGroupName, context));
    }

    /**
     * List the classic metric alert rules within a resource group.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @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 represents a collection of alert rule resources as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable listByResourceGroup(String resourceGroupName) {
        return new PagedIterable<>(listByResourceGroupAsync(resourceGroupName));
    }

    /**
     * List the classic metric alert rules within a resource group.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @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 represents a collection of alert rule resources as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable listByResourceGroup(String resourceGroupName, Context context) {
        return new PagedIterable<>(listByResourceGroupAsync(resourceGroupName, context));
    }

    /**
     * List the classic metric alert rules within a subscription.
     * 
     * @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 represents a collection of alert rule resources along with {@link PagedResponse} on successful completion
     * of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> listSinglePageAsync() {
        if (this.client.getEndpoint() == null) {
            return Mono.error(
                new IllegalArgumentException("Parameter this.client.getEndpoint() 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 apiVersion = "2016-03-01";
        final String accept = "application/json";
        return FluxUtil
            .withContext(context -> service.list(this.client.getEndpoint(), apiVersion, this.client.getSubscriptionId(),
                accept, context))
            .>map(res -> new PagedResponseBase<>(res.getRequest(),
                res.getStatusCode(), res.getHeaders(), res.getValue().value(), null, null))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * List the classic metric alert rules within a subscription.
     * 
     * @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 represents a collection of alert rule resources along with {@link PagedResponse} on successful completion
     * of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> listSinglePageAsync(Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono.error(
                new IllegalArgumentException("Parameter this.client.getEndpoint() 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 apiVersion = "2016-03-01";
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service.list(this.client.getEndpoint(), apiVersion, this.client.getSubscriptionId(), accept, context)
            .map(res -> new PagedResponseBase<>(res.getRequest(), res.getStatusCode(), res.getHeaders(),
                res.getValue().value(), null, null));
    }

    /**
     * List the classic metric alert rules within a subscription.
     * 
     * @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 represents a collection of alert rule resources as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedFlux listAsync() {
        return new PagedFlux<>(() -> listSinglePageAsync());
    }

    /**
     * List the classic metric alert rules within a subscription.
     * 
     * @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 represents a collection of alert rule resources as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    private PagedFlux listAsync(Context context) {
        return new PagedFlux<>(() -> listSinglePageAsync(context));
    }

    /**
     * List the classic metric alert rules within a subscription.
     * 
     * @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 represents a collection of alert rule resources as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable list() {
        return new PagedIterable<>(listAsync());
    }

    /**
     * List the classic metric alert rules within a subscription.
     * 
     * @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 represents a collection of alert rule resources as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable list(Context context) {
        return new PagedIterable<>(listAsync(context));
    }
}