Example usage for com.amazonaws.services.sns.util Topics subscribeQueue

Introduction

In this page you can find the example usage for com.amazonaws.services.sns.util Topics subscribeQueue.

Prototype

public static String subscribeQueue(AmazonSNS sns, AmazonSQS sqs, String snsTopicArn, String sqsQueueUrl)
        throws AmazonClientException, AmazonServiceException 

Source Link

Document

Subscribes an existing Amazon SQS queue to an existing Amazon SNS topic.

Usage

From source file:io.konig.maven.CreateAwsSqsQueueAction.java

License:Apache License

public AwsDeployment from(String path) throws Exception {
    String cfTemplatePresent = System.getProperty("cfTemplatePresent");
    if (cfTemplatePresent == null || cfTemplatePresent.equals("N")) {
        try {/*from w ww .  j a v  a 2s . c om*/
            File file = deployment.file(path);
            ObjectMapper mapper = new ObjectMapper();
            S3Bucket bucket = mapper.readValue(file, S3Bucket.class);
            deployment.verifyAWSCredentials();

            QueueConfiguration queueConfig = bucket.getNotificationConfiguration().getQueueConfiguration();

            if (queueConfig != null && queueConfig.getQueue() != null) {
                String accountId = "";
                if (System.getProperty("aws-account-id") != null) {
                    accountId = System.getProperty("aws-account-id");
                }

                Queue queue = queueConfig.getQueue();
                Regions regions = Regions.fromName(queue.getRegion());
                AmazonSQS sqs = AmazonSQSClientBuilder.standard().withCredentials(deployment.getCredential())
                        .withRegion(regions).build();
                AmazonSNS sns = AmazonSNSClientBuilder.standard().withCredentials(deployment.getCredential())
                        .withRegion(regions).build();

                CreateQueueResult result = sqs.createQueue(queue.getResourceName());

                String topicArn = StringUtils.replaceOnce(
                        bucket.getNotificationConfiguration().getTopicConfiguration().getTopicArn(),
                        "${aws-account-id}", accountId);
                String queueArn = StringUtils.replaceOnce(
                        bucket.getNotificationConfiguration().getQueueConfiguration().getQueueArn(),
                        "${aws-account-id}", accountId);

                deployment.setResponse("Queue  " + queueArn + " is created");

                Policy policy = new Policy()
                        .withStatements(new Statement(Effect.Allow).withPrincipals(Principal.AllUsers)
                                .withActions(SQSActions.SendMessage).withResources(new Resource(queueArn))
                                .withConditions(ConditionFactory.newSourceArnCondition(topicArn)));

                Map<String, String> queueAttributes = new HashMap<String, String>();
                queueAttributes.put(QueueAttributeName.Policy.toString(), policy.toJson());

                deployment.setResponse("Queue Policy Configured : " + policy.toJson());

                sqs.setQueueAttributes(new SetQueueAttributesRequest(result.getQueueUrl(), queueAttributes));

                Topics.subscribeQueue(sns, sqs, topicArn, result.getQueueUrl());

                deployment.setResponse(
                        "Subscription is created : Topic [" + topicArn + "], Queue [" + queueArn + "]");
            } else {
                deployment.setResponse("Queue Configuration Failed");
            }

        } catch (Exception e) {
            throw e;
        }
    } else {
        deployment.setResponse("Queue will be created through cloud formation template");
    }
    return deployment;
}

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