git.gag.com Git - debian/openrocket/blob - core/src/net/sf/openrocket/optimization/general/OptimizationControllerDelegator.java

   1 package net.sf.openrocket.optimization.general;
   2
   3 import java.util.ArrayList;
   4 import java.util.Collection;
   5 import java.util.List;
   6
   7 /**
   8  * An OptimizationController that delegates control actions to multiple other controllers.
   9  * The optimization is stopped if any of the controllers stops it.
  10  *
  11  * @author Sampo Niskanen <sampo.niskanen@iki.fi>
  12  */
  13 public class OptimizationControllerDelegator implements OptimizationController {
  14
  15         private final List<OptimizationController> controllers = new ArrayList<OptimizationController>();
  16
  17         /**
  18          * Construct the controlled based on an array of controllers.
  19          *
  20          * @param controllers   the controllers to use.
  21          */
  22         public OptimizationControllerDelegator(OptimizationController... controllers) {
  23                 for (OptimizationController c : controllers) {
  24                         this.controllers.add(c);
  25                 }
  26         }
  27
  28         /**
  29          * Construct the controller based on a collection of controllers.
  30          *
  31          * @param controllers   the controllers to use.
  32          */
  33         public OptimizationControllerDelegator(Collection<OptimizationController> controllers) {
  34                 this.controllers.addAll(controllers);
  35         }
  36
  37
  38         /**
  39          * Control whether to continue optimization.  This method returns false if any of the
  40          * used controllers returns false.  However, all controllers will be called even if
  41          * an earlier one stops the optimization.
  42          */
  43         @Override
  44         public boolean stepTaken(Point oldPoint, double oldValue, Point newPoint, double newValue, double stepSize) {
  45                 boolean ret = true;
  46
  47                 for (OptimizationController c : controllers) {
  48                         if (!c.stepTaken(oldPoint, oldValue, newPoint, newValue, stepSize)) {
  49                                 ret = false;
  50                         }
  51                 }
  52
  53                 return ret;
  54         }
  55
  56 }