Question

我想使用Guice和AOP支持来记录方法执行时间。我能够将执行时间打印到控制台，但我想将它传递给另一个对象。我的代码是：

GuicePerfMeter.java类

public class GuicePerfMeterApp {
@Inject
private RestClient client;

public static void main(String[] args) {
    Injector injector = Guice.createInjector(new GuicePerfMeterAppModule());
    GuicePerfMeterApp app = injector.getInstance(GuicePerfMeterApp.class);

    new Result(1, app.client.waitAndGetName()); //Instead of 1 I would like to have execution time
}}

GuicePerfMeterAppModule.java

public class GuicePerfMeterAppModule extends AbstractModule {
protected void configure() {
    bindInterceptor(Matchers.any(), Matchers.annotatedWith(MeasurePerformance.class),
            new PerformanceMeter());
}}

MeasurePerformance.java

    @Retention(RetentionPolicy.RUNTIME) @Target(ElementType.METHOD)
public @interface MeasurePerformance {
}

PerformanceMeter.java

public class PerformanceMeter implements MethodInterceptor {
public Object invoke(MethodInvocation invocation) throws Throwable {
    long startTime = System.currentTimeMillis();
    Object obj = invocation.proceed();
    long endTime = System.currentTimeMillis();
    long executionTime = endTime - startTime;
    System.out.println("Execution time: " + executionTime);
    return obj;
}}

RestClient.java

public class RestClient {

@MeasurePerformance
String waitAndGetName() {
    try {
        Thread.sleep(3000);
    } catch (InterruptedException e) {
        e.printStackTrace();
    }
    return "Testing";
}}

Result.java

public class Result {
private long executionTime;
private String name;

public Result(long executionTime, String name) {
    this.executionTime = executionTime;
    this.name = name;
}}

这是我创建的课程。我希望结果对象的执行时间充满在拦截器中测量的执行时间。任何想法的人？

如何使用方法拦截器作为性能记录器

0 个答案: