public PublisherClientImpl(Publisher.IPublisherClient grpcClient, PublisherSettings settings)
{
this.GrpcClient = grpcClient;
PublisherSettings effectiveSettings = settings ?? PublisherSettings.GetDefault();
_clientHelper = new ClientHelper(effectiveSettings);
}
/// <summary>
/// Synchronously creates a <see cref="PublisherClient"/>, applying defaults for all unspecified settings.
/// </summary>
/// <param name="endpoint">Optional <see cref="ServiceEndpoint"/>.</param>
/// <param name="settings">Optional <see cref="PublisherSettings"/>.</param>
/// <param name="credentials">Optional <see cref="ChannelCredentials"/>.</param>
/// <returns>The created <see cref="PublisherClient"/>.</returns>
public static PublisherClient Create(
ServiceEndpoint endpoint = null,
PublisherSettings settings = null,
ChannelCredentials credentials = null)
{
Channel channel = ClientHelper.CreateChannel(endpoint ?? DefaultEndpoint, credentials);
Publisher.PublisherClient grpcClient = new Publisher.PublisherClient(channel);
return(new PublisherClientImpl(grpcClient, settings));
}
// Note: we could have parameterless overloads of Create and CreateAsync,
// documented to just use the default endpoint, settings and credentials.
// Pros:
// - Might be more reassuring on first use
// - Allows method group conversions
// Con: overloads!
/// <summary>
/// Asynchronously creates a <see cref="PublisherClient"/>, applying defaults for all unspecified settings.
/// </summary>
/// <param name="endpoint">Optional <see cref="ServiceEndpoint"/>.</param>
/// <param name="settings">Optional <see cref="PublisherSettings"/>.</param>
/// <param name="credentials">Optional <see cref="ChannelCredentials"/>.</param>
/// <returns>The task representing the created <see cref="PublisherClient"/>.</returns>
public static async Task <PublisherClient> CreateAsync(
ServiceEndpoint endpoint = null,
PublisherSettings settings = null,
ChannelCredentials credentials = null)
{
Channel channel = await ClientHelper.CreateChannelAsync(endpoint ?? DefaultEndpoint, credentials).ConfigureAwait(false);
Publisher.PublisherClient grpcClient = new Publisher.PublisherClient(channel);
return(new PublisherClientImpl(grpcClient, settings));
}
private PublisherSettings(PublisherSettings existing) : base(existing)
{
GaxPreconditions.CheckNotNull(existing, nameof(existing));
CreateTopicRetry = existing.CreateTopicRetry?.Clone();
PublishRetry = existing.PublishRetry?.Clone();
GetTopicRetry = existing.GetTopicRetry?.Clone();
ListTopicsRetry = existing.ListTopicsRetry?.Clone();
ListTopicSubscriptionsRetry = existing.ListTopicSubscriptionsRetry?.Clone();
DeleteTopicRetry = existing.DeleteTopicRetry?.Clone();
}
public PublisherClientImpl(Publisher.IPublisherClient grpcClient, PublisherSettings settings)
{
this.GrpcClient = grpcClient;
PublisherSettings effectiveSettings = settings ?? PublisherSettings.GetDefault();
IClock effectiveClock = effectiveSettings.Clock ?? SystemClock.Instance;
_clientHelper = new ClientHelper(effectiveSettings);
_callCreateTopic = _clientHelper.BuildApiCall <Topic, Topic>(GrpcClient.CreateTopicAsync, GrpcClient.CreateTopic)
.WithRetry(effectiveSettings.CreateTopicRetry, effectiveClock, null);
_callPublish = _clientHelper.BuildApiCall <PublishRequest, PublishResponse>(GrpcClient.PublishAsync, GrpcClient.Publish)
.WithRetry(effectiveSettings.PublishRetry, effectiveClock, null);
_callGetTopic = _clientHelper.BuildApiCall <GetTopicRequest, Topic>(GrpcClient.GetTopicAsync, GrpcClient.GetTopic)
.WithRetry(effectiveSettings.GetTopicRetry, effectiveClock, null);
_callListTopics = _clientHelper.BuildApiCall <ListTopicsRequest, ListTopicsResponse>(GrpcClient.ListTopicsAsync, GrpcClient.ListTopics)
.WithRetry(effectiveSettings.ListTopicsRetry, effectiveClock, null);
_callListTopicSubscriptions = _clientHelper.BuildApiCall <ListTopicSubscriptionsRequest, ListTopicSubscriptionsResponse>(GrpcClient.ListTopicSubscriptionsAsync, GrpcClient.ListTopicSubscriptions)
.WithRetry(effectiveSettings.ListTopicSubscriptionsRetry, effectiveClock, null);
_callDeleteTopic = _clientHelper.BuildApiCall <DeleteTopicRequest, Empty>(GrpcClient.DeleteTopicAsync, GrpcClient.DeleteTopic)
.WithRetry(effectiveSettings.DeleteTopicRetry, effectiveClock, null);
}
/// <summary>
/// Wrap a GRPC Publisher client for more convenient use.
/// </summary>
/// <param name="grpcClient">A GRPC client to wrap.</param>
/// <param name="settings">
/// An optional <see cref="PublisherSettings"/> to configure this wrapper.
/// If null or not specified, then the default settings are used.
/// </param>
/// <returns>A <see cref="PublisherClient"/> that wraps the specified GRPC client.</returns>
public static PublisherClient ToClient(
this Publisher.IPublisherClient grpcClient,
PublisherSettings settings = null
) => new PublisherClientImpl(grpcClient, settings);
