Examples of org.apache.wicket.util.time.Duration

org.apache.wicket.util.time.Duration
A Duration is an immutable length of time stored as a number of milliseconds. Various factory and conversion methods are available for convenience.
These static factory methods allow easy construction of value objects using either long values like seconds(2034) or hours(3):
- Duration.milliseconds(long)
- Duration.seconds(int)
- Duration.minutes(int)
- Duration.hours(int)
- Duration.days(int)
...or double-precision floating point values like days(3.2):
- Duration.milliseconds(double)
- Duration.seconds(double)
- Duration.minutes(double)
- Duration.hours(double)
- Duration.days(double)
In the case of milliseconds(double), the value will be rounded off to the nearest integral millisecond using Math.round().
The precise number of milliseconds represented by a Duration object can be retrieved by calling the getMilliseconds method. The value of a Duration object in a given unit like days or hours can be retrieved by calling one of the following unit methods, each of which returns a double-precision floating point number:
- seconds()
- minutes()
- hours()
- days()
Values can be added and subtracted using the add(Duration) and subtract(Duration) methods, each of which returns a new immutable Duration object.
String values can be converted to Duration objects using the static valueOf factory methods. The String format is the opposite of the one created by toString(), which converts a Duration object to a readable form, such as "3.2 hours" or "32.5 minutes". Valid units are: milliseconds, seconds, minutes hours and days. Correct English plural forms are used in creating String values and are parsed as well. The Locale is respected and "," will be used instead of "." in the Eurozone.
The benchmark method will "benchmark" a Runnable or an {@link ICode} implementingobject, returning a Duration object that represents the amount of time elapsed in running the code.
Finally, the sleep method will sleep for the value of a Duration. @author Jonathan Locke @since 1.2.6

  {
    BufferedWebResponse result = null;
    Value value = (Value)super.get(key);
    if (value != null)
    {
      Duration elapsedTime = Time.now().subtract(value.creationTime);
      if (lifetime.greaterThan(elapsedTime))
      {
        result = value.response;
      }
      else

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    private static final long serialVersionUID = 1L;


    @Override
    protected PageAccessSynchronizer createInstance()
    {
      final Duration timeout;
      if (Application.exists())
      {
        timeout = Application.get().getRequestCycleSettings().getTimeout();
      }
      else

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   */
  public IModificationWatcher getResourceWatcher(boolean start)
  {
    if (resourceWatcher == null && start)
    {
      final Duration pollFrequency = getResourcePollFrequency();
      if (pollFrequency != null)
      {
        resourceWatcher = new ModificationWatcher(pollFrequency);
      }
    }

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    Boolean booleanValue = true;
    Integer integerValue = 42;
    Long longValue = integerValue * 1L;
    Double doubleValue = integerValue * 1.0D;
    Time timeValue = Time.now();
    Duration durationValue = Duration.hours(1);


    boolean defBoolean = !booleanValue;
    int defInteger = 10101;
    long defLong = defInteger * 1L;
    double defDouble = defInteger * 1.0D;
    Time defTime = Time.now();
    Duration defDuration = Duration.hours(42);


    vm.put("num", integerValue.toString());
    vm.put("num.bad", "xxx");
    vm.put("time", timeValue.toString());
    vm.put("time.bad", "xxx");

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   */
  @Test
  public void testReentrant() throws Exception
  {
    final PageAccessSynchronizer sync = new PageAccessSynchronizer(Duration.seconds(5));
    final Duration hold = Duration.seconds(1);
    sync.lockPage(0);
    sync.lockPage(0);
  }

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   */
  @Test
  public void testBlocking() throws Exception
  {
    final PageAccessSynchronizer sync = new PageAccessSynchronizer(Duration.seconds(5));
    final Duration hold = Duration.seconds(1);
    final Time t1locks[] = new Time[1];
    final Time t2locks[] = new Time[1];


    class T1 extends Thread
    {
      @Override
      public void run()
      {
        sync.lockPage(1);
        t1locks[0] = Time.now();
        hold.sleep();
        sync.unlockAllPages();
      }
    }


    class T2 extends Thread

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        sync.lockPage(5);
      }
    }


    // set up a synchronizer and lock page 5 with locker1
    final Duration timeout = Duration.seconds(30);
    final PageAccessSynchronizer sync = new PageAccessSynchronizer(timeout);
    Locker locker1 = new Locker(sync);


    final long start = System.currentTimeMillis();
    locker1.run();

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   */
  public ModificationWatcher getResourceWatcher(boolean start)
  {
    if (resourceWatcher == null && start)
    {
      final Duration pollFrequency = getResourcePollFrequency();
      if (pollFrequency != null)
      {
        resourceWatcher = new ModificationWatcher(pollFrequency);
      }
    }

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   */
  public ModificationWatcher getResourceWatcher(boolean start)
  {
    if (resourceWatcher == null && start)
    {
      final Duration pollFrequency = getResourcePollFrequency();
      if (pollFrequency != null)
      {
        resourceWatcher = new ModificationWatcher(pollFrequency);
      }
    }

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        long startTime = System.currentTimeMillis();


        // TODO For now only use the setting. Might be extended with
        // something overridable on request/ page/ request target level
        // later
        Duration timeout = Application.get().getRequestCycleSettings().getTimeout();


        PageMapsUsedInRequestEntry entry = (PageMapsUsedInRequestEntry)pageMapsUsedInRequest
            .get(pageMap);


        // Get page entry for id and version
        Thread t = entry != null ? entry.thread : null;
        while (t != null && t != Thread.currentThread())
        {
          if (isCurrentRequestValid(entry.requestCycle) == false)
          {
            // we need to ignore this request. That's because it is
            // an ajax request
            // while regular page request is being processed
            throw new IgnoreAjaxRequestException();
          }


          try
          {
            pageMapsUsedInRequest.wait(timeout.getMilliseconds());
          }
          catch (InterruptedException ex)
          {
            throw new WicketRuntimeException(ex);
          }


          entry = (PageMapsUsedInRequestEntry)pageMapsUsedInRequest.get(pageMap);
          t = entry != null ? entry.thread : null;


          if (t != null && t != Thread.currentThread() &&
              (startTime + timeout.getMilliseconds()) < System.currentTimeMillis())
          {
            // if it is still not the right thread..
            // This either points to long running code (a report
            // page?) or a deadlock or such
            throw new WicketRuntimeException("After " + timeout + " the Pagemap " +

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