// DwarfMgrBean.java
// Stateless Session Bean Facade
package dwarf;

import java.rmi.RemoteException;
import javax.ejb.SessionBean;
import javax.ejb.SessionContext;
import javax.naming.InitialContext;
import javax.rmi.PortableRemoteObject;
import java.util.*;

public class DwarfMgrBean implements SessionBean {

  static DwarfEntityHome getDwarfHome() {
    try {
      InitialContext jndiContext = new InitialContext();
      Object ref = jndiContext.lookup("dwarf/DwarfEntity");
      DwarfEntityHome home = (DwarfEntityHome)ref;
      return home;
    } catch (Exception e) {
      // hack
      throw new RuntimeException("Naming Failure: " + e.getMessage());
    }
  }

  //--------------------------------------------------------------
  private static Dwarf toDwarfBean(DwarfEntity dwarf){
      MountainEntity dHome = dwarf.getHome();
      DwarfEntity spouse = dwarf.getSpouse();
      Dwarf d = new Dwarf();
      d.setDwarfId(dwarf.getDwarfId().intValue());
      d.setDwarfName(dwarf.getDwarfName());
      d.setBorn(dwarf.getBorn());
     
      if(dHome != null){
        d.setHomeId(dHome.getMountainId().intValue());
        d.setHomeName(dHome.getMountainName());
      }
   
      if(spouse != null){
        d.setSpouseId(spouse.getDwarfId().intValue());
        d.setSpouseName(spouse.getDwarfName());
      }

      return d;
  }

  //--------------------------------------------------------------
  public List GetAll() throws javax.ejb.FinderException {
    DwarfEntityHome home = getDwarfHome();
    java.util.Collection entityList = home.findAll();
    List ret = new LinkedList();

    for(Iterator i = entityList.iterator(); i.hasNext(); ){
      DwarfEntity dwarf = (DwarfEntity)i.next();
      Dwarf d = toDwarfBean(dwarf);
      ret.add(d);
    } 

    return ret;
  } 

  //--------------------------------------------------------------
  public Dwarf Get(int id) throws javax.ejb.FinderException {
    DwarfEntityHome home = getDwarfHome();
    DwarfEntity dwarf = home.findByPrimaryKey(new Integer(id));

    if(dwarf != null){
      return toDwarfBean(dwarf);
    }else{
      return null;
    }
  } 

  //--------------------------------------------------------------
  public int Add(String dwarfName,int born,int homeId)
    throws javax.ejb.FinderException, javax.ejb.CreateException
  {
    DwarfEntityHome dHome = getDwarfHome();
    MountainEntityHome mHome = MountainMgrBean.getMountainHome();
    MountainEntity homeOfTheDwarf = null;

    if(homeId != 0){
      homeOfTheDwarf = mHome.findByPrimaryKey(new Integer(homeId));
    }

    DwarfEntity theD = dHome.create(dwarfName,born,homeOfTheDwarf);
    // work-around
    theD.setHome(homeOfTheDwarf);

    // return id later...
    return 0;
  }

  //--------------------------------------------------------------
  public void Update(int id, String dwarfName,int born,int homeId) 
    throws javax.ejb.FinderException
  {
    DwarfEntityHome dHome = getDwarfHome(); 
    MountainEntityHome mHome = MountainMgrBean.getMountainHome();
    MountainEntity homeOfTheDwarf = null;
    
    if(homeId != 0){
      homeOfTheDwarf = mHome.findByPrimaryKey(new Integer(homeId));
    }
   
    DwarfEntity theDwarf = dHome.findByPrimaryKey(new Integer(id)); 
    theDwarf.setDwarfName(dwarfName);
    theDwarf.setBorn(born);
    theDwarf.setHome(homeOfTheDwarf);
  }

   public void ejbCreate() {}
   public void ejbPostCreate() {}
   public void ejbRemove() {}
   public void ejbActivate() {}
   public void ejbPassivate() {}
   public void setSessionContext(SessionContext sc) {}
}