@Override
	public String toDSL() {
		return String.format(
				"sparkapp --appJar=%s --name=%s --master=%s  --mainClass=%s",
				sparkAppJar, sparkAppName, sparkMaster, sparkAppMainClass);
	}
Renders the default DSL for this fixture.
spring-xd-test-fixtures/src/main/java/org/springframework/xd/test/fixtures/SparkAppJob.java