com.google.cloud.pubsub.v1

Class Publisher.Builder

java.lang.Object

com.google.cloud.pubsub.v1.Publisher.Builder

Enclosing class:

Publisher

public static final class Publisher.Builder
extends Object

A builder of Publishers.

Method Summary

Modifier and Type	Method and Description
Publisher	build()
Publisher.Builder	setBatchingSettings(BatchingSettings batchingSettings)
Publisher.Builder	setChannelProvider(TransportChannelProvider channelProvider) ChannelProvider to use to create Channels, which must point at Cloud Pub/Sub endpoint.
Publisher.Builder	setCredentialsProvider(CredentialsProvider credentialsProvider) CredentialsProvider to use to create Credentials to authenticate calls.
Publisher.Builder	setExecutorProvider(ExecutorProvider executorProvider) Gives the ability to set a custom executor to be used by the library.
Publisher.Builder	setHeaderProvider(HeaderProvider headerProvider) Sets the static header provider.
Publisher.Builder	setRetrySettings(RetrySettings retrySettings) Configures the Publisher's retry parameters.
Publisher.Builder	setTransform(com.google.api.core.ApiFunction<com.google.pubsub.v1.PubsubMessage,com.google.pubsub.v1.PubsubMessage> messageTransform) Gives the ability to set an ApiFunction that will transform the PubsubMessage before it is sent

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

setChannelProvider

public Publisher.Builder setChannelProvider(TransportChannelProvider channelProvider)

ChannelProvider to use to create Channels, which must point at Cloud Pub/Sub endpoint.

For performance, this client benefits from having multiple underlying connections. See InstantiatingGrpcChannelProvider.Builder.setPoolSize(int).

setHeaderProvider

@BetaApi
public Publisher.Builder setHeaderProvider(HeaderProvider headerProvider)

Sets the static header provider. The header provider will be called during client construction only once. The headers returned by the provider will be cached and supplied as is for each request issued by the constructed client. Some reserved headers can be overridden (e.g. Content-Type) or merged with the default value (e.g. User-Agent) by the underlying transport layer.

Parameters:

headerProvider - the header provider

Returns:

the builder

setCredentialsProvider

public Publisher.Builder setCredentialsProvider(CredentialsProvider credentialsProvider)

CredentialsProvider to use to create Credentials to authenticate calls.

setBatchingSettings

public Publisher.Builder setBatchingSettings(BatchingSettings batchingSettings)

setRetrySettings

public Publisher.Builder setRetrySettings(RetrySettings retrySettings)

Configures the Publisher's retry parameters.

setExecutorProvider

public Publisher.Builder setExecutorProvider(ExecutorProvider executorProvider)

Gives the ability to set a custom executor to be used by the library.

setTransform

@BetaApi
public Publisher.Builder setTransform(com.google.api.core.ApiFunction<com.google.pubsub.v1.PubsubMessage,com.google.pubsub.v1.PubsubMessage> messageTransform)

Gives the ability to set an ApiFunction that will transform the PubsubMessage before it is sent

build

public Publisher build()
                throws IOException

Throws:

IOException