lostsalevariable.java

著名IT公司ILog的APS高级排产优化引擎

package com.power.pipeengine.Variable;

import java.util.*;
import java.text.*;
import com.power.pipeengine.Entity.*;
import com.power.pipeengine.*;

/**
 * <p>Title: PIPE Engine</p>
 * <p>Description: Global Planning Optimization Engine</p>
 * <p>Copyright: Copyright (c) 2002</p>
 * <p>Company: Paraster, Inc.</p>
 * @author Wei Tan
 * @version 1.0
 */

/**
 * LostSaleVariable represents part of the demand that may never be met.
 */
public class LostSaleVariable
    extends Variable {
  static ResourceBundle res = ResourceBundle.getBundle(
      "com.power.pipeengine.Res",
      EngineConfig.getInstance().getLocale());
  private static final LostSaleVariable INSTANCE =
      new LostSaleVariable();

  // Private constructor supresses
  // default public constructor
  private LostSaleVariable() {
  }

  public static LostSaleVariable getInstance() {
    return INSTANCE;
  }

  public String getVariable(Facility f, Product p, Bucket b) {
    return new String("LS" +
                      "F" + f.getVariableCode() +
                      "P" + p.getVariableCode() +
                      "T" + b.getVariableCode());
    /*String separator = "";
       return new String( "LS" + f.getFacilityID() + separator +
           p.getProductID() + separator +
           b.getBucketID() );*/
  }

  public void setObjElement(String varName, Product p, Bucket b) {
    int dmdPriority = p.getDemandPriority(b) + 1;
    double asp = p.getASP(b.getBucketID());
    if (EngineConfig.getInstance().isMaxOnTimeDelivery()) {
      setObjElement(varName, 50000.0 / dmdPriority + Math.random() * 0.0000001);
    }
    else {
      setObjElement(varName, 50000.0 / dmdPriority + Math.random() * 0.0000001);
    }
  }

}