# Application Recovery Controller examples using SDK for Java 2.x
<a name="java_route53-recovery-cluster_code_examples"></a>

The following code examples show you how to perform actions and implement common scenarios by using the AWS SDK for Java 2.x with Application Recovery Controller.

*Actions* are code excerpts from larger programs and must be run in context. While actions show you how to call individual service functions, you can see actions in context in their related scenarios.

Each example includes a link to the complete source code, where you can find instructions on how to set up and run the code in context.

**Topics**
+ [Actions](#actions)

## Actions
<a name="actions"></a>

### `GetRoutingControlState`
<a name="route53-recovery-cluster_GetRoutingControlState_java_topic"></a>

The following code example shows how to use `GetRoutingControlState`.

**SDK for Java 2.x**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/route53recoverycluster#code-examples). 

```
    public static GetRoutingControlStateResponse getRoutingControlState(List<ClusterEndpoint> clusterEndpoints,
            String routingControlArn) {
        // As a best practice, we recommend choosing a random cluster endpoint to get or
        // set routing control states.
        // For more information, see
        // https://docs.aws.amazon.com/r53recovery/latest/dg/route53-arc-best-practices.html#route53-arc-best-practices.regional
        Collections.shuffle(clusterEndpoints);
        for (ClusterEndpoint clusterEndpoint : clusterEndpoints) {
            try {
                System.out.println(clusterEndpoint);
                Route53RecoveryClusterClient client = Route53RecoveryClusterClient.builder()
                        .endpointOverride(URI.create(clusterEndpoint.endpoint()))
                        .region(Region.of(clusterEndpoint.region())).build();
                return client.getRoutingControlState(
                        GetRoutingControlStateRequest.builder()
                                .routingControlArn(routingControlArn).build());
            } catch (Exception exception) {
                System.out.println(exception);
            }
        }
        return null;
    }
```
+  For API details, see [GetRoutingControlState](https://docs.aws.amazon.com/goto/SdkForJavaV2/route53-recovery-cluster-2019-12-02/GetRoutingControlState) in *AWS SDK for Java 2.x API Reference*. 

### `UpdateRoutingControlState`
<a name="route53-recovery-cluster_UpdateRoutingControlState_java_topic"></a>

The following code example shows how to use `UpdateRoutingControlState`.

**SDK for Java 2.x**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/route53recoverycluster#code-examples). 

```
    public static UpdateRoutingControlStateResponse updateRoutingControlState(List<ClusterEndpoint> clusterEndpoints,
            String routingControlArn,
            String routingControlState) {
        // As a best practice, we recommend choosing a random cluster endpoint to get or
        // set routing control states.
        // For more information, see
        // https://docs.aws.amazon.com/r53recovery/latest/dg/route53-arc-best-practices.html#route53-arc-best-practices.regional
        Collections.shuffle(clusterEndpoints);
        for (ClusterEndpoint clusterEndpoint : clusterEndpoints) {
            try {
                System.out.println(clusterEndpoint);
                Route53RecoveryClusterClient client = Route53RecoveryClusterClient.builder()
                        .endpointOverride(URI.create(clusterEndpoint.endpoint()))
                        .region(Region.of(clusterEndpoint.region()))
                        .build();
                return client.updateRoutingControlState(
                        UpdateRoutingControlStateRequest.builder()
                                .routingControlArn(routingControlArn).routingControlState(routingControlState).build());
            } catch (Exception exception) {
                System.out.println(exception);
            }
        }
        return null;
    }
```
+  For API details, see [UpdateRoutingControlState](https://docs.aws.amazon.com/goto/SdkForJavaV2/route53-recovery-cluster-2019-12-02/UpdateRoutingControlState) in *AWS SDK for Java 2.x API Reference*.