Class StreamingServiceClient (0.12.0)

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GitHub Repository

Product Reference

RPC Documentation

Service Description: Streaming service for receiving and sending packets.

This class provides the ability to make remote calls to the backing service through method calls that map to API methods. Sample code to get started:

 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StreamingServiceClient streamingServiceClient = StreamingServiceClient.create()) {
   AcquireLeaseRequest request =
       AcquireLeaseRequest.newBuilder()
           .setSeries("series-905838985")
           .setOwner("owner106164915")
           .setTerm(Duration.newBuilder().build())
           .setLeaseType(LeaseType.forNumber(0))
           .build();
   Lease response = streamingServiceClient.acquireLease(request);
 }
 

Note: close() needs to be called on the StreamingServiceClient object to clean up resources such as threads. In the example above, try-with-resources is used, which automatically calls close().

Methods

Method	Description	Method Variants
SendPackets	Send packets to the series.	Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service. sendPacketsCallable()
ReceivePackets	Receive packets from the series.	Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service. receivePacketsCallable()
ReceiveEvents	Receive events given the stream name.	Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service. receiveEventsCallable()
AcquireLease	AcquireLease acquires a lease.	Request object method variants only take one parameter, a request object, which must be constructed before the call. acquireLease(AcquireLeaseRequest request) Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service. acquireLeaseCallable()
RenewLease	RenewLease renews a lease.	Request object method variants only take one parameter, a request object, which must be constructed before the call. renewLease(RenewLeaseRequest request) Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service. renewLeaseCallable()
ReleaseLease	RleaseLease releases a lease.	Request object method variants only take one parameter, a request object, which must be constructed before the call. releaseLease(ReleaseLeaseRequest request) Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service. releaseLeaseCallable()

See the individual methods for example code.

Many parameters require resource names to be formatted in a particular way. To assist with these names, this class includes a format method for each type of name, and additionally a parse method to extract the individual identifiers contained within names that are returned.

This class can be customized by passing in a custom instance of StreamingServiceSettings to create(). For example:

To customize credentials:

 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 StreamingServiceSettings streamingServiceSettings =
     StreamingServiceSettings.newBuilder()
         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
         .build();
 StreamingServiceClient streamingServiceClient =
     StreamingServiceClient.create(streamingServiceSettings);
 

To customize the endpoint:

 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 StreamingServiceSettings streamingServiceSettings =
     StreamingServiceSettings.newBuilder().setEndpoint(myEndpoint).build();
 StreamingServiceClient streamingServiceClient =
     StreamingServiceClient.create(streamingServiceSettings);
 

To use REST (HTTP1.1/JSON) transport (instead of gRPC) for sending and receiving requests over the wire:

 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 StreamingServiceSettings streamingServiceSettings =
     StreamingServiceSettings.newHttpJsonBuilder().build();
 StreamingServiceClient streamingServiceClient =
     StreamingServiceClient.create(streamingServiceSettings);
 

Please refer to the GitHub repository's samples for more quickstart code snippets.

Inheritance

java.lang.Object > StreamingServiceClient

Static Methods

create()

public static final StreamingServiceClient create()

Constructs an instance of StreamingServiceClient with default settings.

Returns
Type	Description
StreamingServiceClient

Exceptions
Type	Description
IOException

create(StreamingServiceSettings settings)

public static final StreamingServiceClient create(StreamingServiceSettings settings)

Constructs an instance of StreamingServiceClient, using the given settings. The channels are created based on the settings passed in, or defaults for any settings that are not set.

Parameter
Name	Description
settings	StreamingServiceSettings

Returns
Type	Description
StreamingServiceClient

Exceptions
Type	Description
IOException

create(StreamingServiceStub stub)

public static final StreamingServiceClient create(StreamingServiceStub stub)

Constructs an instance of StreamingServiceClient, using the given stub for making calls. This is for advanced usage - prefer using create(StreamingServiceSettings).

Parameter
Name	Description
stub	StreamingServiceStub

Returns
Type	Description
StreamingServiceClient

Constructors

StreamingServiceClient(StreamingServiceSettings settings)

protected StreamingServiceClient(StreamingServiceSettings settings)

Constructs an instance of StreamingServiceClient, using the given settings. This is protected so that it is easy to make a subclass, but otherwise, the static factory methods should be preferred.

Parameter
Name	Description
settings	StreamingServiceSettings

StreamingServiceClient(StreamingServiceStub stub)

protected StreamingServiceClient(StreamingServiceStub stub)

Parameter
Name	Description
stub	StreamingServiceStub

Methods

acquireLease(AcquireLeaseRequest request)

public final Lease acquireLease(AcquireLeaseRequest request)

AcquireLease acquires a lease.

Sample code:

 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StreamingServiceClient streamingServiceClient = StreamingServiceClient.create()) {
   AcquireLeaseRequest request =
       AcquireLeaseRequest.newBuilder()
           .setSeries("series-905838985")
           .setOwner("owner106164915")
           .setTerm(Duration.newBuilder().build())
           .setLeaseType(LeaseType.forNumber(0))
           .build();
   Lease response = streamingServiceClient.acquireLease(request);
 }
 

Parameter
Name	Description
request	AcquireLeaseRequest The request object containing all of the parameters for the API call.

Returns
Type	Description
Lease

acquireLeaseCallable()

public final UnaryCallable<AcquireLeaseRequest,Lease> acquireLeaseCallable()

AcquireLease acquires a lease.

Sample code:

 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StreamingServiceClient streamingServiceClient = StreamingServiceClient.create()) {
   AcquireLeaseRequest request =
       AcquireLeaseRequest.newBuilder()
           .setSeries("series-905838985")
           .setOwner("owner106164915")
           .setTerm(Duration.newBuilder().build())
           .setLeaseType(LeaseType.forNumber(0))
           .build();
   ApiFuture<Lease> future = streamingServiceClient.acquireLeaseCallable().futureCall(request);
   // Do something.
   Lease response = future.get();
 }
 

Returns
Type	Description
UnaryCallable<AcquireLeaseRequest,Lease>

awaitTermination(long duration, TimeUnit unit)

public boolean awaitTermination(long duration, TimeUnit unit)

Parameters
Name	Description
duration	long
unit	TimeUnit

Returns
Type	Description
boolean

Exceptions
Type	Description
InterruptedException

close()

public final void close()

getSettings()

public final StreamingServiceSettings getSettings()

Returns
Type	Description
StreamingServiceSettings

getStub()

public StreamingServiceStub getStub()

Returns
Type	Description
StreamingServiceStub

isShutdown()

public boolean isShutdown()

Returns
Type	Description
boolean

isTerminated()

public boolean isTerminated()

Returns
Type	Description
boolean

receiveEventsCallable()

public final BidiStreamingCallable<ReceiveEventsRequest,ReceiveEventsResponse> receiveEventsCallable()

Receive events given the stream name.

Sample code:

 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StreamingServiceClient streamingServiceClient = StreamingServiceClient.create()) {
   BidiStream<ReceiveEventsRequest, ReceiveEventsResponse> bidiStream =
       streamingServiceClient.receiveEventsCallable().call();
   ReceiveEventsRequest request = ReceiveEventsRequest.newBuilder().build();
   bidiStream.send(request);
   for (ReceiveEventsResponse response : bidiStream) {
     // Do something when a response is received.
   }
 }
 

Returns
Type	Description
BidiStreamingCallable<ReceiveEventsRequest,ReceiveEventsResponse>

receivePacketsCallable()

public final BidiStreamingCallable<ReceivePacketsRequest,ReceivePacketsResponse> receivePacketsCallable()

Receive packets from the series.

Sample code:

 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StreamingServiceClient streamingServiceClient = StreamingServiceClient.create()) {
   BidiStream<ReceivePacketsRequest, ReceivePacketsResponse> bidiStream =
       streamingServiceClient.receivePacketsCallable().call();
   ReceivePacketsRequest request = ReceivePacketsRequest.newBuilder().build();
   bidiStream.send(request);
   for (ReceivePacketsResponse response : bidiStream) {
     // Do something when a response is received.
   }
 }
 

Returns
Type	Description
BidiStreamingCallable<ReceivePacketsRequest,ReceivePacketsResponse>

releaseLease(ReleaseLeaseRequest request)

public final ReleaseLeaseResponse releaseLease(ReleaseLeaseRequest request)

RleaseLease releases a lease.

Sample code:

 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StreamingServiceClient streamingServiceClient = StreamingServiceClient.create()) {
   ReleaseLeaseRequest request =
       ReleaseLeaseRequest.newBuilder()
           .setId("id3355")
           .setSeries("series-905838985")
           .setOwner("owner106164915")
           .build();
   ReleaseLeaseResponse response = streamingServiceClient.releaseLease(request);
 }
 

Parameter
Name	Description
request	ReleaseLeaseRequest The request object containing all of the parameters for the API call.

Returns
Type	Description
ReleaseLeaseResponse

releaseLeaseCallable()

public final UnaryCallable<ReleaseLeaseRequest,ReleaseLeaseResponse> releaseLeaseCallable()

RleaseLease releases a lease.

Sample code:

 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StreamingServiceClient streamingServiceClient = StreamingServiceClient.create()) {
   ReleaseLeaseRequest request =
       ReleaseLeaseRequest.newBuilder()
           .setId("id3355")
           .setSeries("series-905838985")
           .setOwner("owner106164915")
           .build();
   ApiFuture<ReleaseLeaseResponse> future =
       streamingServiceClient.releaseLeaseCallable().futureCall(request);
   // Do something.
   ReleaseLeaseResponse response = future.get();
 }
 

Returns
Type	Description
UnaryCallable<ReleaseLeaseRequest,ReleaseLeaseResponse>

renewLease(RenewLeaseRequest request)

public final Lease renewLease(RenewLeaseRequest request)

RenewLease renews a lease.

Sample code:

 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StreamingServiceClient streamingServiceClient = StreamingServiceClient.create()) {
   RenewLeaseRequest request =
       RenewLeaseRequest.newBuilder()
           .setId("id3355")
           .setSeries("series-905838985")
           .setOwner("owner106164915")
           .setTerm(Duration.newBuilder().build())
           .build();
   Lease response = streamingServiceClient.renewLease(request);
 }
 

Parameter
Name	Description
request	RenewLeaseRequest The request object containing all of the parameters for the API call.

Returns
Type	Description
Lease

renewLeaseCallable()

public final UnaryCallable<RenewLeaseRequest,Lease> renewLeaseCallable()

RenewLease renews a lease.

Sample code:

 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StreamingServiceClient streamingServiceClient = StreamingServiceClient.create()) {
   RenewLeaseRequest request =
       RenewLeaseRequest.newBuilder()
           .setId("id3355")
           .setSeries("series-905838985")
           .setOwner("owner106164915")
           .setTerm(Duration.newBuilder().build())
           .build();
   ApiFuture<Lease> future = streamingServiceClient.renewLeaseCallable().futureCall(request);
   // Do something.
   Lease response = future.get();
 }
 

Returns
Type	Description
UnaryCallable<RenewLeaseRequest,Lease>

sendPacketsCallable()

public final BidiStreamingCallable<SendPacketsRequest,SendPacketsResponse> sendPacketsCallable()

Send packets to the series.

Sample code:

 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StreamingServiceClient streamingServiceClient = StreamingServiceClient.create()) {
   BidiStream<SendPacketsRequest, SendPacketsResponse> bidiStream =
       streamingServiceClient.sendPacketsCallable().call();
   SendPacketsRequest request = SendPacketsRequest.newBuilder().build();
   bidiStream.send(request);
   for (SendPacketsResponse response : bidiStream) {
     // Do something when a response is received.
   }
 }
 

Returns
Type	Description
BidiStreamingCallable<SendPacketsRequest,SendPacketsResponse>

shutdown()

public void shutdown()

shutdownNow()

public void shutdownNow()