Examples of org.springframework.util.StopWatch

org.springframework.util.StopWatch
Simple stop watch, allowing for timing of a number of tasks, exposing total running time and running time for each named task.
Conceals use of System.currentTimeMillis(), improving the readability of application code and reducing the likelihood of calculation errors.
Note that this object is not designed to be thread-safe and does not use synchronization.
This class is normally used to verify performance during proof-of-concepts and in development, rather than as part of production applications. @author Rod Johnson @author Juergen Hoeller @author Sam Brannen @since May 2, 2001

    assertTrue("getStringParameter took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 250);
  }


  public void testGetStringParameterWithDefaultValueHandlingIsFastEnough() {
    MockHttpServletRequest request = new MockHttpServletRequest();
    StopWatch sw = new StopWatch();
    sw.start();
    for (int i = 0; i < 1000000; i++) {
      ServletRequestUtils.getStringParameter(request, "nonExistingParam", "defaultValue");
    }
    sw.stop();
    System.out.println(sw.getTotalTimeMillis());
    assertTrue("getStringParameter took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 250);
  }

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    assertTrue("getStringParameter took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 250);
  }


  public void testGetBooleanParameterWithDefaultValueHandlingIsFastEnough() {
    MockPortletRequest request = new MockPortletRequest();
    StopWatch sw = new StopWatch();
    sw.start();
    for (int i = 0; i < 1000000; i++) {
      PortletRequestUtils.getBooleanParameter(request, "nonExistingParam", false);
    }
    sw.stop();
    System.out.println(sw.getTotalTimeMillis());
    assertTrue("getStringParameter took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 250);
  }

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    assertTrue("getStringParameter took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 250);
  }


  public void testGetStringParameterWithDefaultValueHandlingIsFastEnough() {
    MockPortletRequest request = new MockPortletRequest();
    StopWatch sw = new StopWatch();
    sw.start();
    for (int i = 0; i < 1000000; i++) {
      PortletRequestUtils.getStringParameter(request, "nonExistingParam", "defaultValue");
    }
    sw.stop();
    System.out.println(sw.getTotalTimeMillis());
    assertTrue("getStringParameter took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 250);
  }

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    assertEquals("", PortletRequestUtils.getRequiredStringParameter(request, "paramEmpty"));
  }


  public void testGetIntParameterWithDefaultValueHandlingIsFastEnough() {
    MockPortletRequest request = new MockPortletRequest();
    StopWatch sw = new StopWatch();
    sw.start();
    for (int i = 0; i < 1000000; i++) {
      PortletRequestUtils.getIntParameter(request, "nonExistingParam", 0);
    }
    sw.stop();
    System.out.println(sw.getTotalTimeMillis());
    assertTrue("getStringParameter took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 250);
  }

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    assertTrue("getStringParameter took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 250);
  }


  public void testGetLongParameterWithDefaultValueHandlingIsFastEnough() {
    MockPortletRequest request = new MockPortletRequest();
    StopWatch sw = new StopWatch();
    sw.start();
    for (int i = 0; i < 1000000; i++) {
      PortletRequestUtils.getLongParameter(request, "nonExistingParam", 0);
    }
    sw.stop();
    System.out.println(sw.getTotalTimeMillis());
    assertTrue("getStringParameter took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 250);
  }

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    assertTrue("getStringParameter took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 250);
  }


  public void testGetFloatParameterWithDefaultValueHandlingIsFastEnough() {
    MockPortletRequest request = new MockPortletRequest();
    StopWatch sw = new StopWatch();
    sw.start();
    for (int i = 0; i < 1000000; i++) {
      PortletRequestUtils.getFloatParameter(request, "nonExistingParam", 0f);
    }
    sw.stop();
    System.out.println(sw.getTotalTimeMillis());
    assertTrue("getStringParameter took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 250);
  }

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    assertTrue("getStringParameter took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 250);
  }


  public void testGetDoubleParameterWithDefaultValueHandlingIsFastEnough() {
    MockPortletRequest request = new MockPortletRequest();
    StopWatch sw = new StopWatch();
    sw.start();
    for (int i = 0; i < 1000000; i++) {
      PortletRequestUtils.getDoubleParameter(request, "nonExistingParam", 0d);
    }
    sw.stop();
    System.out.println(sw.getTotalTimeMillis());
    assertTrue("getStringParameter took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 250);
  }

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    RootBeanDefinition rbd = new RootBeanDefinition(ResourceAnnotatedTestBean.class);
    rbd.setScope(RootBeanDefinition.SCOPE_PROTOTYPE);
    ctx.registerBeanDefinition("test", rbd);
    ctx.registerBeanDefinition("spouse", new RootBeanDefinition(TestBean.class));
    TestBean spouse = (TestBean) ctx.getBean("spouse");
    StopWatch sw = new StopWatch();
    sw.start("prototype");
    for (int i = 0; i < 100000; i++) {
      TestBean tb = (TestBean) ctx.getBean("test");
      assertSame(spouse, tb.getSpouse());
    }
    sw.stop();
    //System.out.println(sw.getTotalTimeMillis());
    assertTrue("Prototype creation took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 4000);
  }

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    rbd.setScope(RootBeanDefinition.SCOPE_PROTOTYPE);
    rbd.getPropertyValues().addPropertyValue("spouse", new RuntimeBeanReference("spouse"));
    ctx.registerBeanDefinition("test", rbd);
    ctx.registerBeanDefinition("spouse", new RootBeanDefinition(TestBean.class));
    TestBean spouse = (TestBean) ctx.getBean("spouse");
    StopWatch sw = new StopWatch();
    sw.start("prototype");
    for (int i = 0; i < 100000; i++) {
      TestBean tb = (TestBean) ctx.getBean("test");
      assertSame(spouse, tb.getSpouse());
    }
    sw.stop();
    //System.out.println(sw.getTotalTimeMillis());
    assertTrue("Prototype creation took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 4000);
  }

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    RootBeanDefinition rbd = new RootBeanDefinition(AutowiredAnnotatedTestBean.class);
    rbd.setScope(RootBeanDefinition.SCOPE_PROTOTYPE);
    ctx.registerBeanDefinition("test", rbd);
    ctx.registerBeanDefinition("spouse", new RootBeanDefinition(TestBean.class));
    TestBean spouse = (TestBean) ctx.getBean("spouse");
    StopWatch sw = new StopWatch();
    sw.start("prototype");
    for (int i = 0; i < 100000; i++) {
      TestBean tb = (TestBean) ctx.getBean("test");
      assertSame(spouse, tb.getSpouse());
    }
    sw.stop();
    //System.out.println(sw.getTotalTimeMillis());
    assertTrue("Prototype creation took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 4000);
  }

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