FlowletDefinition(String flowletName, Flowlet flowlet, int instances) { FlowletSpecification flowletSpec = flowlet.configure(); this.instances = instances; Map<String, Set<Type>> inputTypes = Maps.newHashMap(); Map<String, Set<Type>> outputTypes = Maps.newHashMap(); Map<String, String> properties = Maps.newHashMap(flowletSpec.getProperties()); Reflections.visit(flowlet, TypeToken.of(flowlet.getClass()), new PropertyFieldExtractor(properties), new OutputEmitterFieldExtractor(outputTypes), new ProcessMethodExtractor(inputTypes)); this.inputTypes = immutableCopyOf(inputTypes); this.outputTypes = immutableCopyOf(outputTypes); this.flowletSpec = new DefaultFlowletSpecification(flowlet.getClass().getName(), flowletName == null ? flowletSpec.getName() : flowletName, flowletSpec.getDescription(), flowletSpec.getFailurePolicy(), properties, flowletSpec.getResources(), flowletSpec.getMaxInstances()); }