Class RegionsClient (1.7.2) 

public class RegionsClient implements BackgroundResource

Service Description: The Regions API.

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 (RegionsClient regionsClient = RegionsClient.create()) {
   String project = "project-309310695";
   String region = "region-934795532";
   Region response = regionsClient.get(project, region);
 }

Note: close() needs to be called on the RegionsClient 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 RegionsSettings to create(). For example:

To customize credentials:


 RegionsSettings regionsSettings =
     RegionsSettings.newBuilder()
         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
         .build();
 RegionsClient regionsClient = RegionsClient.create(regionsSettings);

To customize the endpoint:


 RegionsSettings regionsSettings = RegionsSettings.newBuilder().setEndpoint(myEndpoint).build();
 RegionsClient regionsClient = RegionsClient.create(regionsSettings);

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

Inheritance

java.lang.Object > RegionsClient

Implements

BackgroundResource

Static Methods

create()

public static final RegionsClient create()

Constructs an instance of RegionsClient with default settings.

Returns
TypeDescription
RegionsClient
Exceptions
TypeDescription
IOException

create(RegionsSettings settings)

public static final RegionsClient create(RegionsSettings settings)

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

Parameter
NameDescription
settingsRegionsSettings
Returns
TypeDescription
RegionsClient
Exceptions
TypeDescription
IOException

create(RegionsStub stub)

public static final RegionsClient create(RegionsStub stub)

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

Parameter
NameDescription
stubRegionsStub
Returns
TypeDescription
RegionsClient

Constructors

RegionsClient(RegionsSettings settings)

protected RegionsClient(RegionsSettings settings)

Constructs an instance of RegionsClient, 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
NameDescription
settingsRegionsSettings

RegionsClient(RegionsStub stub)

protected RegionsClient(RegionsStub stub)
Parameter
NameDescription
stubRegionsStub

Methods

awaitTermination(long duration, TimeUnit unit)

public boolean awaitTermination(long duration, TimeUnit unit)
Parameters
NameDescription
durationlong
unitTimeUnit
Returns
TypeDescription
boolean
Exceptions
TypeDescription
InterruptedException

close()

public final void close()

get(GetRegionRequest request)

public final Region get(GetRegionRequest request)

Returns the specified Region resource. Gets a list of available regions by making a list() request.

Sample code:


 try (RegionsClient regionsClient = RegionsClient.create()) {
   GetRegionRequest request =
       GetRegionRequest.newBuilder()
           .setProject("project-309310695")
           .setRegion("region-934795532")
           .build();
   Region response = regionsClient.get(request);
 }
Parameter
NameDescription
requestGetRegionRequest

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

Returns
TypeDescription
Region

get(String project, String region)

public final Region get(String project, String region)

Returns the specified Region resource. Gets a list of available regions by making a list() request.

Sample code:


 try (RegionsClient regionsClient = RegionsClient.create()) {
   String project = "project-309310695";
   String region = "region-934795532";
   Region response = regionsClient.get(project, region);
 }
Parameters
NameDescription
projectString

Project ID for this request.

regionString

Name of the region resource to return.

Returns
TypeDescription
Region

getCallable()

public final UnaryCallable<GetRegionRequest,Region> getCallable()

Returns the specified Region resource. Gets a list of available regions by making a list() request.

Sample code:


 try (RegionsClient regionsClient = RegionsClient.create()) {
   GetRegionRequest request =
       GetRegionRequest.newBuilder()
           .setProject("project-309310695")
           .setRegion("region-934795532")
           .build();
   ApiFuture<Region> future = regionsClient.getCallable().futureCall(request);
   // Do something.
   Region response = future.get();
 }
Returns
TypeDescription
UnaryCallable<GetRegionRequest,Region>

getSettings()

public final RegionsSettings getSettings()
Returns
TypeDescription
RegionsSettings

getStub()

public RegionsStub getStub()
Returns
TypeDescription
RegionsStub

isShutdown()

public boolean isShutdown()
Returns
TypeDescription
boolean

isTerminated()

public boolean isTerminated()
Returns
TypeDescription
boolean

list(ListRegionsRequest request)

public final RegionsClient.ListPagedResponse list(ListRegionsRequest request)

Retrieves the list of region resources available to the specified project.

Sample code:


 try (RegionsClient regionsClient = RegionsClient.create()) {
   ListRegionsRequest request =
       ListRegionsRequest.newBuilder()
           .setFilter("filter-1274492040")
           .setMaxResults(1128457243)
           .setOrderBy("orderBy-1207110587")
           .setPageToken("pageToken873572522")
           .setProject("project-309310695")
           .setReturnPartialSuccess(true)
           .build();
   for (Region element : regionsClient.list(request).iterateAll()) {
     // doThingsWith(element);
   }
 }
Parameter
NameDescription
requestListRegionsRequest

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

Returns
TypeDescription
RegionsClient.ListPagedResponse

list(String project)

public final RegionsClient.ListPagedResponse list(String project)

Retrieves the list of region resources available to the specified project.

Sample code:


 try (RegionsClient regionsClient = RegionsClient.create()) {
   String project = "project-309310695";
   for (Region element : regionsClient.list(project).iterateAll()) {
     // doThingsWith(element);
   }
 }
Parameter
NameDescription
projectString

Project ID for this request.

Returns
TypeDescription
RegionsClient.ListPagedResponse

listCallable()

public final UnaryCallable<ListRegionsRequest,RegionList> listCallable()

Retrieves the list of region resources available to the specified project.

Sample code:


 try (RegionsClient regionsClient = RegionsClient.create()) {
   ListRegionsRequest request =
       ListRegionsRequest.newBuilder()
           .setFilter("filter-1274492040")
           .setMaxResults(1128457243)
           .setOrderBy("orderBy-1207110587")
           .setPageToken("pageToken873572522")
           .setProject("project-309310695")
           .setReturnPartialSuccess(true)
           .build();
   while (true) {
     RegionList response = regionsClient.listCallable().call(request);
     for (Region element : response.getResponsesList()) {
       // doThingsWith(element);
     }
     String nextPageToken = response.getNextPageToken();
     if (!Strings.isNullOrEmpty(nextPageToken)) {
       request = request.toBuilder().setPageToken(nextPageToken).build();
     } else {
       break;
     }
   }
 }
Returns
TypeDescription
UnaryCallable<ListRegionsRequest,RegionList>

listPagedCallable()

public final UnaryCallable<ListRegionsRequest,RegionsClient.ListPagedResponse> listPagedCallable()

Retrieves the list of region resources available to the specified project.

Sample code:


 try (RegionsClient regionsClient = RegionsClient.create()) {
   ListRegionsRequest request =
       ListRegionsRequest.newBuilder()
           .setFilter("filter-1274492040")
           .setMaxResults(1128457243)
           .setOrderBy("orderBy-1207110587")
           .setPageToken("pageToken873572522")
           .setProject("project-309310695")
           .setReturnPartialSuccess(true)
           .build();
   ApiFuture<Region> future = regionsClient.listPagedCallable().futureCall(request);
   // Do something.
   for (Region element : future.get().iterateAll()) {
     // doThingsWith(element);
   }
 }
Returns
TypeDescription
UnaryCallable<ListRegionsRequest,ListPagedResponse>

shutdown()

public void shutdown()

shutdownNow()

public void shutdownNow()