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public final class InstantiatingGrpcChannelProvider implements TransportChannelProviderInstantiatingGrpcChannelProvider is a TransportChannelProvider which constructs a gRPC ManagedChannel with a number of configured inputs every time getChannel(...) is called. These inputs include a port, a service address, and credentials.
The credentials can either be supplied directly (by providing a FixedCredentialsProvider to Builder.setCredentialsProvider()) or acquired implicitly from Application Default Credentials (by providing a GoogleCredentialsProvider to Builder.setCredentialsProvider()).
The client lib header and generator header values are used to form a value that goes into the http header of requests to the service.
Implements
TransportChannelProviderStatic Methods
newBuilder()
public static InstantiatingGrpcChannelProvider.Builder newBuilder()| Type | Description |
| InstantiatingGrpcChannelProvider.Builder |
Methods
acceptsPoolSize()
public boolean acceptsPoolSize()Reports whether this provider allows pool size customization.
| Type | Description |
| boolean |
getEndpoint()
public String getEndpoint()The endpoint to be used for the channel.
| Type | Description |
| String |
getKeepAliveTime()
public Duration getKeepAliveTime()The time without read activity before sending a keepalive ping.
| Type | Description |
| org.threeten.bp.Duration |
getKeepAliveTimeout()
public Duration getKeepAliveTimeout()The time without read activity after sending a keepalive ping.
| Type | Description |
| org.threeten.bp.Duration |
getKeepAliveWithoutCalls()
public Boolean getKeepAliveWithoutCalls()Whether keepalive will be performed when there are no outstanding RPCs.
| Type | Description |
| Boolean |
getMaxInboundMetadataSize()
public Integer getMaxInboundMetadataSize()The maximum metadata size allowed to be received on the channel.
| Type | Description |
| Integer |
getTransportChannel()
public TransportChannel getTransportChannel()Provides a Transport, which could either be a new instance for every call, or the same instance, depending on the implementation.
If #needsExecutor() is true, then #withExecutor(Executor) needs to be called first to provide an executor.
If #needsHeaders() is true, then #withHeaders(Map) needs to be called first to provide headers.
if #needsEndpoint() is true, then #withEndpoint(String) needs to be called first to provide an endpoint.
| Type | Description |
| TransportChannel |
| Type | Description |
| IOException |
getTransportName()
public String getTransportName()The name of the transport.
This string can be used for identifying transports for switching logic.
| Type | Description |
| String |
needsCredentials()
public boolean needsCredentials()True if credentials are needed before channel creation.
| Type | Description |
| boolean |
needsEndpoint()
public boolean needsEndpoint()True if the TransportProvider has no endpoint set.
| Type | Description |
| boolean |
needsExecutor() (deprecated)
public boolean needsExecutor()Deprecated. If executor is not set, this channel provider will create channels with default grpc executor.
True if the TransportProvider needs an executor.
| Type | Description |
| boolean |
needsHeaders()
public boolean needsHeaders()True if the TransportProvider has no headers provided.
| Type | Description |
| boolean |
shouldAutoClose()
public boolean shouldAutoClose()Indicates whether the TransportChannel should be closed by the containing client class.
| Type | Description |
| boolean |
toBuilder()
public InstantiatingGrpcChannelProvider.Builder toBuilder()| Type | Description |
| InstantiatingGrpcChannelProvider.Builder |
withCredentials(Credentials credentials)
public TransportChannelProvider withCredentials(Credentials credentials)Sets the credentials that will be applied before channel creation.
| Name | Description |
| credentials | com.google.auth.Credentials |
| Type | Description |
| TransportChannelProvider |
withEndpoint(String endpoint)
public TransportChannelProvider withEndpoint(String endpoint)Specify the endpoint the channel should connect to.
The value of endpoint must be of the form host:port.
| Name | Description |
| endpoint | StringThe endpoint to connect to |
| Type | Description |
| TransportChannelProvider | A new InstantiatingGrpcChannelProvider with the specified endpoint configured |
withExecutor(Executor executor)
public TransportChannelProvider withExecutor(Executor executor)Sets the executor to use when constructing a new TransportChannel.
| Name | Description |
| executor | Executor |
| Type | Description |
| TransportChannelProvider |
withExecutor(ScheduledExecutorService executor)
public TransportChannelProvider withExecutor(ScheduledExecutorService executor)| Name | Description |
| executor | ScheduledExecutorService |
| Type | Description |
| TransportChannelProvider |
withHeaders(Map<String,String> headers)
public TransportChannelProvider withHeaders(Map<String,String> headers)Sets the headers to use when constructing a new TransportChannel.
This method should only be called if #needsHeaders() returns true.
| Name | Description |
| headers | Map<String,String> |
| Type | Description |
| TransportChannelProvider |
withPoolSize(int size)
public TransportChannelProvider withPoolSize(int size)Number of underlying transport channels to open. Calls will be load balanced across them.
| Name | Description |
| size | int |
| Type | Description |
| TransportChannelProvider |