package ejava.examples.txagent.bo;
   
   import java.io.ByteArrayInputStream;
   
   import java.io.ByteArrayOutputStream;
   import java.io.IOException;
   import java.io.ObjectInputStream;
   import java.io.ObjectOutputStream;
   import java.io.Serializable;
  import java.util.Collections;
  import java.util.HashSet;
  import java.util.Set;
  
  import ejava.examples.txhotel.bo.Reservation;
  
  @SuppressWarnings("serial")
  public class Booking implements Serializable {
      private long id;
      private long version;
      private String confirmation;
      private Set<String> hotelConfirmations = new HashSet<String>();
      private Set<Reservation> hotelReservations = new HashSet<Reservation>();
      
      public Booking() {}
      public Booking(
              long id, long version, String confirmation) {
          setId(id);
          setVersion(version);
          setConfirmation(confirmation);
      }
      
      public long getId() {
          return id;
      }
      private void setId(long id) {
          this.id = id;
      }
      public String getConfirmation() {
          return confirmation;
      }
      public void setConfirmation(String confirmation) {
          this.confirmation = confirmation;
      }
      public long getVersion() {
          return version;
      }
      public void setVersion(long version) {
          this.version = version;
      }
      public Set<String> getHotelConfirmations() {
          return Collections.unmodifiableSet(hotelConfirmations);
      }
      @SuppressWarnings("unused")
      private void setHotelConfirmations(Set<String> hotelConfirmations) {
          this.hotelConfirmations = hotelConfirmations;
      }
      public Set<Reservation> getHotelReservations() {
          return Collections.unmodifiableSet(hotelReservations);
      }
      @SuppressWarnings("unused")
      private void setHotelReservations(Set<Reservation> hotelReservations) {
          this.hotelReservations = hotelReservations;
      }
      public void addHotelReservation(Reservation reservation) {
      	if (!hotelConfirmations.contains(reservation.getConfirmation())) {
  	        this.hotelConfirmations.add(reservation.getConfirmation());
  	        this.hotelReservations.add(reservation);
      	}
      }
      //hibernate wouldn't persist ArrayList<String> as @Lob
      @SuppressWarnings("unused")
      private byte[] getHotelConfirmationsAsBytes() throws IOException {
          ByteArrayOutputStream bos = new ByteArrayOutputStream();
          ObjectOutputStream oos = new ObjectOutputStream(bos);
          oos.writeObject(hotelConfirmations);
          return bos.toByteArray();        
      }
      @SuppressWarnings({ "unchecked", "unused" })
      private void setHotelConfirmationsAsBytes(byte data[]) 
          throws IOException, ClassNotFoundException {
          ByteArrayInputStream bis = new ByteArrayInputStream(data);
          ObjectInputStream ois = new ObjectInputStream(bis);
          hotelConfirmations = (Set<String>)ois.readObject();
      }
      
      
      @Override
  	public boolean equals(Object obj) {
  		if (this==obj) return true;
  		if (obj!= null && obj instanceof Booking) {
  			return confirmation.equals(((Booking)obj).confirmation);
  		}
  		return false;
  	}
      
  	@Override
  	public int hashCode() {
  		return confirmation.hashCode();
  	}
 
 	public String toString() {
         StringBuilder text = new StringBuilder();
         text.append("id=" + id);
         text.append(", version=" + version);
         text.append(", conf#" + confirmation);
         text.append(", hotel confirmations=" + hotelConfirmations);
         text.append(", hotel reservations=" + hotelReservations);
         return text.toString();
     }
 }