public void waitForStackToLaunch()

in src/main/java/com/awslabs/aws/greengrass/provisioner/implementations/helpers/BasicCloudFormationHelper.java [111:142]

24 lines of code
7 McCabe index (conditional complexity)


    public void waitForStackToLaunch(String stackName) {
        DescribeStacksRequest describeStacksRequest = DescribeStacksRequest.builder()
                .stackName(stackName)
                .build();
        DescribeStacksResponse describeStacksResponse = cloudFormationClient.describeStacks(describeStacksRequest);

        StackStatus stackStatus = describeStacksResponse.stacks().get(0).stackStatus();

        while (stackStatus.equals(StackStatus.CREATE_IN_PROGRESS) ||
                stackStatus.equals(StackStatus.UPDATE_IN_PROGRESS)) {
            if (stackStatus.equals(StackStatus.ROLLBACK_IN_PROGRESS) ||
                    (stackStatus.equals(StackStatus.ROLLBACK_COMPLETE)) ||
                    (stackStatus.equals(StackStatus.ROLLBACK_FAILED))) {
                throw new RuntimeException(String.join("", "CloudFormation stack [", stackName, "] failed to launch"));
            }

            String action = "creating";

            if (stackStatus.equals(StackStatus.UPDATE_IN_PROGRESS)) {
                action = "updating";
            }

            log.info(String.join("", "Waiting for stack to finish ", action, " [", stackName, ", ", stackStatus.toString(), "]..."));

            ioHelper.sleep(10000);

            describeStacksResponse = cloudFormationClient.describeStacks(describeStacksRequest);
            stackStatus = describeStacksResponse.stacks().get(0).stackStatus();
        }

        log.info(String.join("", "CloudFormation stack ready [", stackName, "]"));
    }