AmazonSimpleWorkflow swfService = configHelper.createSWFClient();
String domain = configHelper.getDomain();
final WorkflowWorker worker = new WorkflowWorker(swfService, domain, DECISION_TASK_LIST);
worker.addWorkflowImplementationType(FileProcessingWorkflowZipImpl.class);
worker.start();
System.out.println("Workflow Host Service Started...");
Runtime.getRuntime().addShutdownHook(new Thread() {