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/**
 * Copyright (c) Microsoft Corporation. All rights reserved.
 * Licensed under the MIT License. See License.txt in the project root for
 * license information.
 *
 * Code generated by Microsoft (R) AutoRest Code Generator.
 */

package com.microsoft.azure.eventgrid.implementation;

import com.google.common.base.Joiner;
import com.google.common.reflect.TypeToken;
import com.microsoft.azure.AzureClient;
import com.microsoft.azure.AzureServiceClient;
import com.microsoft.azure.CloudException;
import com.microsoft.azure.eventgrid.EventGridClient;
import com.microsoft.azure.eventgrid.models.EventGridEvent;
import com.microsoft.rest.credentials.ServiceClientCredentials;
import com.microsoft.rest.RestClient;
import com.microsoft.rest.ServiceCallback;
import com.microsoft.rest.ServiceFuture;
import com.microsoft.rest.ServiceResponse;
import com.microsoft.rest.Validator;
import java.io.IOException;
import java.util.List;
import okhttp3.ResponseBody;
import retrofit2.http.Body;
import retrofit2.http.Header;
import retrofit2.http.Headers;
import retrofit2.http.POST;
import retrofit2.http.Query;
import retrofit2.Response;
import rx.functions.Func1;
import rx.Observable;

/**
 * Initializes a new instance of the EventGridClientImpl class.
 */
public class EventGridClientImpl extends AzureServiceClient implements EventGridClient {
    /** The Retrofit service to perform REST calls. */
    private EventGridClientService service;
    /** the {@link AzureClient} used for long running operations. */
    private AzureClient azureClient;

    /**
     * Gets the {@link AzureClient} used for long running operations.
     * @return the azure client;
     */
    public AzureClient getAzureClient() {
        return this.azureClient;
    }

    /** Version of the API to be used with the client request. */
    private String apiVersion;

    /**
     * Gets Version of the API to be used with the client request.
     *
     * @return the apiVersion value.
     */
    public String apiVersion() {
        return this.apiVersion;
    }

    /** Gets or sets the preferred language for the response. */
    private String acceptLanguage;

    /**
     * Gets Gets or sets the preferred language for the response.
     *
     * @return the acceptLanguage value.
     */
    public String acceptLanguage() {
        return this.acceptLanguage;
    }

    /**
     * Sets Gets or sets the preferred language for the response.
     *
     * @param acceptLanguage the acceptLanguage value.
     * @return the service client itself
     */
    public EventGridClientImpl withAcceptLanguage(String acceptLanguage) {
        this.acceptLanguage = acceptLanguage;
        return this;
    }

    /** Gets or sets the retry timeout in seconds for Long Running Operations. Default value is 30. */
    private int longRunningOperationRetryTimeout;

    /**
     * Gets Gets or sets the retry timeout in seconds for Long Running Operations. Default value is 30.
     *
     * @return the longRunningOperationRetryTimeout value.
     */
    public int longRunningOperationRetryTimeout() {
        return this.longRunningOperationRetryTimeout;
    }

    /**
     * Sets Gets or sets the retry timeout in seconds for Long Running Operations. Default value is 30.
     *
     * @param longRunningOperationRetryTimeout the longRunningOperationRetryTimeout value.
     * @return the service client itself
     */
    public EventGridClientImpl withLongRunningOperationRetryTimeout(int longRunningOperationRetryTimeout) {
        this.longRunningOperationRetryTimeout = longRunningOperationRetryTimeout;
        return this;
    }

    /** When set to true a unique x-ms-client-request-id value is generated and included in each request. Default is true. */
    private boolean generateClientRequestId;

    /**
     * Gets When set to true a unique x-ms-client-request-id value is generated and included in each request. Default is true.
     *
     * @return the generateClientRequestId value.
     */
    public boolean generateClientRequestId() {
        return this.generateClientRequestId;
    }

    /**
     * Sets When set to true a unique x-ms-client-request-id value is generated and included in each request. Default is true.
     *
     * @param generateClientRequestId the generateClientRequestId value.
     * @return the service client itself
     */
    public EventGridClientImpl withGenerateClientRequestId(boolean generateClientRequestId) {
        this.generateClientRequestId = generateClientRequestId;
        return this;
    }

    /**
     * Initializes an instance of EventGridClient client.
     *
     * @param credentials the management credentials for Azure
     */
    public EventGridClientImpl(ServiceClientCredentials credentials) {
        this("https://{topicHostname}", credentials);
    }

    /**
     * Initializes an instance of EventGridClient client.
     *
     * @param baseUrl the base URL of the host
     * @param credentials the management credentials for Azure
     */
    private EventGridClientImpl(String baseUrl, ServiceClientCredentials credentials) {
        super(baseUrl, credentials);
        initialize();
    }

    /**
     * Initializes an instance of EventGridClient client.
     *
     * @param restClient the REST client to connect to Azure.
     */
    public EventGridClientImpl(RestClient restClient) {
        super(restClient);
        initialize();
    }

    protected void initialize() {
        this.apiVersion = "2018-01-01";
        this.acceptLanguage = "en-US";
        this.longRunningOperationRetryTimeout = 30;
        this.generateClientRequestId = true;
        this.azureClient = new AzureClient(this);
        initializeService();
    }

    /**
     * Gets the User-Agent header for the client.
     *
     * @return the user agent string.
     */
    @Override
    public String userAgent() {
        return String.format("%s (%s, %s)", super.userAgent(), "EventGridClient", "2018-01-01");
    }

    private void initializeService() {
        service = restClient().retrofit().create(EventGridClientService.class);
    }

    /**
     * The interface defining all the services for EventGridClient to be
     * used by Retrofit to perform actually REST calls.
     */
    interface EventGridClientService {
        @Headers({ "Content-Type: application/json; charset=utf-8", "x-ms-logging-context: com.microsoft.azure.eventgrid.EventGridClient publishEvents" })
        @POST("api/events")
        Observable> publishEvents(@Body List events, @Query("api-version") String apiVersion, @Header("accept-language") String acceptLanguage, @Header("x-ms-parameterized-host") String parameterizedHost, @Header("User-Agent") String userAgent);

    }

    /**
     * Publishes a batch of events to an Azure Event Grid topic.
     *
     * @param topicHostname The host name of the topic, e.g. topic1.westus2-1.eventgrid.azure.net
     * @param events An array of events to be published to Event Grid.
     * @throws IllegalArgumentException thrown if parameters fail the validation
     * @throws CloudException thrown if the request is rejected by server
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent
     */
    public void publishEvents(String topicHostname, List events) {
        publishEventsWithServiceResponseAsync(topicHostname, events).toBlocking().single().body();
    }

    /**
     * Publishes a batch of events to an Azure Event Grid topic.
     *
     * @param topicHostname The host name of the topic, e.g. topic1.westus2-1.eventgrid.azure.net
     * @param events An array of events to be published to Event Grid.
     * @param serviceCallback the async ServiceCallback to handle successful and failed responses.
     * @throws IllegalArgumentException thrown if parameters fail the validation
     * @return the {@link ServiceFuture} object
     */
    public ServiceFuture publishEventsAsync(String topicHostname, List events, final ServiceCallback serviceCallback) {
        return ServiceFuture.fromResponse(publishEventsWithServiceResponseAsync(topicHostname, events), serviceCallback);
    }

    /**
     * Publishes a batch of events to an Azure Event Grid topic.
     *
     * @param topicHostname The host name of the topic, e.g. topic1.westus2-1.eventgrid.azure.net
     * @param events An array of events to be published to Event Grid.
     * @throws IllegalArgumentException thrown if parameters fail the validation
     * @return the {@link ServiceResponse} object if successful.
     */
    public Observable publishEventsAsync(String topicHostname, List events) {
        return publishEventsWithServiceResponseAsync(topicHostname, events).map(new Func1, Void>() {
            @Override
            public Void call(ServiceResponse response) {
                return response.body();
            }
        });
    }

    /**
     * Publishes a batch of events to an Azure Event Grid topic.
     *
     * @param topicHostname The host name of the topic, e.g. topic1.westus2-1.eventgrid.azure.net
     * @param events An array of events to be published to Event Grid.
     * @throws IllegalArgumentException thrown if parameters fail the validation
     * @return the {@link ServiceResponse} object if successful.
     */
    public Observable> publishEventsWithServiceResponseAsync(String topicHostname, List events) {
        if (topicHostname == null) {
            throw new IllegalArgumentException("Parameter topicHostname is required and cannot be null.");
        }
        if (events == null) {
            throw new IllegalArgumentException("Parameter events is required and cannot be null.");
        }
        if (this.apiVersion() == null) {
            throw new IllegalArgumentException("Parameter this.apiVersion() is required and cannot be null.");
        }
        Validator.validate(events);
        String parameterizedHost = Joiner.on(", ").join("{topicHostname}", topicHostname);
        return service.publishEvents(events, this.apiVersion(), this.acceptLanguage(), parameterizedHost, this.userAgent())
            .flatMap(new Func1, Observable>>() {
                @Override
                public Observable> call(Response response) {
                    try {
                        ServiceResponse clientResponse = publishEventsDelegate(response);
                        return Observable.just(clientResponse);
                    } catch (Throwable t) {
                        return Observable.error(t);
                    }
                }
            });
    }

    private ServiceResponse publishEventsDelegate(Response response) throws CloudException, IOException, IllegalArgumentException {
        return this.restClient().responseBuilderFactory().newInstance(this.serializerAdapter())
                .register(200, new TypeToken() { }.getType())
                .registerError(CloudException.class)
                .build(response);
    }

}




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