Class TemplatesServiceClient (0.5.0)

Version 0.5.0

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public class TemplatesServiceClient implements BackgroundResource

Service Description: Provides a method to create Cloud Dataflow jobs from templates.

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:

 try (TemplatesServiceClient templatesServiceClient = TemplatesServiceClient.create()) {
   CreateJobFromTemplateRequest request =
       CreateJobFromTemplateRequest.newBuilder()
           .setProjectId("projectId-894832108")
           .setJobName("jobName-1438096408")
           .putAllParameters(new HashMap<String, String>())
           .setEnvironment(RuntimeEnvironment.newBuilder().build())
           .setLocation("location1901043637")
           .build();
   Job response = templatesServiceClient.createJobFromTemplate(request);
 }
 

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

The surface of this class includes several types of Java methods for each of the API's methods:

1. A "flattened" method. With this type of method, the fields of the request type have been converted into function parameters. It may be the case that not all fields are available as parameters, and not every API method will have a flattened method entry point.
2. A "request object" method. This type of method only takes one parameter, a request object, which must be constructed before the call. Not every API method will have a request object method.
3. A "callable" method. This type of method takes no parameters and returns an immutable API callable object, which can be used to initiate calls to the service.

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 TemplatesServiceSettings to create(). For example:

To customize credentials:

 TemplatesServiceSettings templatesServiceSettings =
     TemplatesServiceSettings.newBuilder()
         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
         .build();
 TemplatesServiceClient templatesServiceClient =
     TemplatesServiceClient.create(templatesServiceSettings);
 

To customize the endpoint:

 TemplatesServiceSettings templatesServiceSettings =
     TemplatesServiceSettings.newBuilder().setEndpoint(myEndpoint).build();
 TemplatesServiceClient templatesServiceClient =
     TemplatesServiceClient.create(templatesServiceSettings);
 

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

Inheritance

java.lang.Object > TemplatesServiceClient

Implements

BackgroundResource

Inherited Members

Object.clone()

Object.equals(Object)

Object.finalize()

Object.getClass()

Object.hashCode()

Object.notify()

Object.notifyAll()

Object.toString()

Object.wait()

Object.wait(long)

Object.wait(long,int)

Static Methods

create()

public static final TemplatesServiceClient create()

Constructs an instance of TemplatesServiceClient with default settings.

Returns

Type	Description
TemplatesServiceClient

Exceptions

Type	Description
IOException

create(TemplatesServiceSettings settings)

public static final TemplatesServiceClient create(TemplatesServiceSettings settings)

Constructs an instance of TemplatesServiceClient, 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	TemplatesServiceSettings

Returns

Type	Description
TemplatesServiceClient

Exceptions

Type	Description
IOException

create(TemplatesServiceStub stub)

public static final TemplatesServiceClient create(TemplatesServiceStub stub)

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

Parameter

Name	Description
stub	TemplatesServiceStub

Returns

Type	Description
TemplatesServiceClient

Constructors

TemplatesServiceClient(TemplatesServiceSettings settings)

protected TemplatesServiceClient(TemplatesServiceSettings settings)

Constructs an instance of TemplatesServiceClient, 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	TemplatesServiceSettings

TemplatesServiceClient(TemplatesServiceStub stub)

protected TemplatesServiceClient(TemplatesServiceStub stub)

Parameter

Name	Description
stub	TemplatesServiceStub

Methods

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()

createJobFromTemplate(CreateJobFromTemplateRequest request)

public final Job createJobFromTemplate(CreateJobFromTemplateRequest request)

Creates a Cloud Dataflow job from a template.

Sample code:

 try (TemplatesServiceClient templatesServiceClient = TemplatesServiceClient.create()) {
   CreateJobFromTemplateRequest request =
       CreateJobFromTemplateRequest.newBuilder()
           .setProjectId("projectId-894832108")
           .setJobName("jobName-1438096408")
           .putAllParameters(new HashMap<String, String>())
           .setEnvironment(RuntimeEnvironment.newBuilder().build())
           .setLocation("location1901043637")
           .build();
   Job response = templatesServiceClient.createJobFromTemplate(request);
 }
 

Parameter

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

Returns

Type	Description
Job

createJobFromTemplateCallable()

public final UnaryCallable<CreateJobFromTemplateRequest,Job> createJobFromTemplateCallable()

Creates a Cloud Dataflow job from a template.

Sample code:

 try (TemplatesServiceClient templatesServiceClient = TemplatesServiceClient.create()) {
   CreateJobFromTemplateRequest request =
       CreateJobFromTemplateRequest.newBuilder()
           .setProjectId("projectId-894832108")
           .setJobName("jobName-1438096408")
           .putAllParameters(new HashMap<String, String>())
           .setEnvironment(RuntimeEnvironment.newBuilder().build())
           .setLocation("location1901043637")
           .build();
   ApiFuture<Job> future =
       templatesServiceClient.createJobFromTemplateCallable().futureCall(request);
   // Do something.
   Job response = future.get();
 }
 

Returns

Type	Description
UnaryCallable<CreateJobFromTemplateRequest,Job>

getSettings()

public final TemplatesServiceSettings getSettings()

Returns

Type	Description
TemplatesServiceSettings

getStub()

public TemplatesServiceStub getStub()

Returns

Type	Description
TemplatesServiceStub

getTemplate(GetTemplateRequest request)

public final GetTemplateResponse getTemplate(GetTemplateRequest request)

Get the template associated with a template.

Sample code:

 try (TemplatesServiceClient templatesServiceClient = TemplatesServiceClient.create()) {
   GetTemplateRequest request =
       GetTemplateRequest.newBuilder()
           .setProjectId("projectId-894832108")
           .setLocation("location1901043637")
           .build();
   GetTemplateResponse response = templatesServiceClient.getTemplate(request);
 }
 

Parameter

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

Returns

Type	Description
GetTemplateResponse

getTemplateCallable()

public final UnaryCallable<GetTemplateRequest,GetTemplateResponse> getTemplateCallable()

Get the template associated with a template.

Sample code:

 try (TemplatesServiceClient templatesServiceClient = TemplatesServiceClient.create()) {
   GetTemplateRequest request =
       GetTemplateRequest.newBuilder()
           .setProjectId("projectId-894832108")
           .setLocation("location1901043637")
           .build();
   ApiFuture<GetTemplateResponse> future =
       templatesServiceClient.getTemplateCallable().futureCall(request);
   // Do something.
   GetTemplateResponse response = future.get();
 }
 

Returns

Type	Description
UnaryCallable<GetTemplateRequest,GetTemplateResponse>

isShutdown()

public boolean isShutdown()

Returns

Type	Description
boolean

isTerminated()

public boolean isTerminated()

Returns

Type	Description
boolean

launchTemplate(LaunchTemplateRequest request)

public final LaunchTemplateResponse launchTemplate(LaunchTemplateRequest request)

Launch a template.

Sample code:

 try (TemplatesServiceClient templatesServiceClient = TemplatesServiceClient.create()) {
   LaunchTemplateRequest request =
       LaunchTemplateRequest.newBuilder()
           .setProjectId("projectId-894832108")
           .setValidateOnly(true)
           .setLaunchParameters(LaunchTemplateParameters.newBuilder().build())
           .setLocation("location1901043637")
           .build();
   LaunchTemplateResponse response = templatesServiceClient.launchTemplate(request);
 }
 

Parameter

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

Returns

Type	Description
LaunchTemplateResponse

launchTemplateCallable()

public final UnaryCallable<LaunchTemplateRequest,LaunchTemplateResponse> launchTemplateCallable()

Launch a template.

Sample code:

 try (TemplatesServiceClient templatesServiceClient = TemplatesServiceClient.create()) {
   LaunchTemplateRequest request =
       LaunchTemplateRequest.newBuilder()
           .setProjectId("projectId-894832108")
           .setValidateOnly(true)
           .setLaunchParameters(LaunchTemplateParameters.newBuilder().build())
           .setLocation("location1901043637")
           .build();
   ApiFuture<LaunchTemplateResponse> future =
       templatesServiceClient.launchTemplateCallable().futureCall(request);
   // Do something.
   LaunchTemplateResponse response = future.get();
 }
 

Returns

Type	Description
UnaryCallable<LaunchTemplateRequest,LaunchTemplateResponse>

shutdown()

public void shutdown()

shutdownNow()

public void shutdownNow()