private void addPermissions() {
	if (permissions != null && permissions.isEmpty() == false) {
		GetTopicAttributesResult result = client
				.getTopicAttributes(topicArn);

		AwsUtil.addPermissions(result.getAttributes(), permissions,
				new AwsUtil.AddPermissionHandler() {

					@Override
					public void execute(Permission p) {
						client.addPermission(new AddPermissionRequest()
								.withTopicArn(topicArn)
								.withLabel(p.getLabel())
								.withAWSAccountIds(p.getAwsAccountIds())
								.withActionNames(p.getActions()));
					}
				});
	}
}
 

@SuppressWarnings({"checkstyle:illegalCatch"})
private static boolean topicExists(AmazonSNS client, String topicName) {
  try {
    GetTopicAttributesResult topicAttributesResult = client.getTopicAttributes(topicName);
    return topicAttributesResult != null
        && topicAttributesResult.getSdkHttpMetadata().getHttpStatusCode() == 200;
  } catch (Exception e) {
    LOG.warn("Error checking whether topic {} exists.", topicName, e);
    throw e;
  }
}
 

private static void configureAmazonSnsMock(AmazonSNS amazonSNS) {
  final GetTopicAttributesResult result = Mockito.mock(GetTopicAttributesResult.class);
  final SdkHttpMetadata metadata = Mockito.mock(SdkHttpMetadata.class);
  Mockito.when(metadata.getHttpHeaders()).thenReturn(new HashMap<>());
  Mockito.when(metadata.getHttpStatusCode()).thenReturn(200);
  Mockito.when(result.getSdkHttpMetadata()).thenReturn(metadata);
  Mockito.when(amazonSNS.getTopicAttributes(Mockito.anyString())).thenReturn(result);
}
 

@Override
public boolean load(GetTopicAttributesRequest request,
        ResultCapture<GetTopicAttributesResult> extractor) {

    return resource.load(request, extractor);
}
 

/**
 * Makes a call to the service to load this resource's attributes if they
 * are not loaded yet, and use a ResultCapture to retrieve the low-level
 * client response
 * The following request parameters will be populated from the data of this
 * <code>Topic</code> resource, and any conflicting parameter value set in
 * the request will be overridden:
 * <ul>
 *   <li>
 *     <b><code>TopicArn</code></b>
 *         - mapped from the <code>Arn</code> identifier.
 *   </li>
 * </ul>
 *
 * <p>
 *
 * @return Returns {@code true} if the resource is not yet loaded when this
 *         method was invoked, which indicates that a service call has been
 *         made to retrieve the attributes.
 * @see GetTopicAttributesRequest
 */
boolean load(GetTopicAttributesRequest request,
        ResultCapture<GetTopicAttributesResult> extractor);