Class Sweeper

  • All Implemented Interfaces:
    Runnable, LifeCycle

    @Deprecated(since="2021-05-27")
    public class Sweeper
    extends AbstractLifeCycle
    implements Runnable
    Deprecated.
    The Eclipse Jetty and Apache Felix Http Jetty packages are no longer supported.

    A utility class to perform periodic sweeping of resources.

    Sweeper.Sweepable resources may be added to or removed from a Sweeper and the resource implementation decides whether it should be swept or not.

    If a Sweeper.Sweepable resources is itself a container of other sweepable resources, it will forward the sweep operation to children resources, and so on recursively.

    Typical usage is to add Sweeper as a bean to an existing container:

      Server server = new Server();
      server.addBean(new Sweeper(), true);
      server.start();
      
    Code that knows it has sweepable resources can then lookup the Sweeper and offer the sweepable resources to it:
      class MyComponent implements Sweeper.Sweepable
      {
          private final long creation;
          private volatile destroyed;
    
          MyComponent(Server server)
          {
              this.creation = System.nanoTime();
              Sweeper sweeper = server.getBean(Sweeper.class);
              sweeper.offer(this);
          }
    
          void destroy()
          {
              destroyed = true;
          }
    
          @Override
          public boolean sweep()
          {
              return destroyed;
          }
      }
      
    • Constructor Detail

      • Sweeper

        public Sweeper​(Scheduler scheduler,
                       long period)
        Deprecated.
    • Method Detail

      • getSize

        public int getSize()
        Deprecated.
      • run

        public void run()
        Deprecated.
        Specified by:
        run in interface Runnable