/*This code was generated using the UMPLE modeling language!
 Date of generation: 2008/07/29 14:51:25*/
/*This class drives: Topic*/

package University.core;

import java.util.*;
import University.*;
import University.json.*;

public class MutualExclusionReason {
  //Class datatypes

  //Class association variables
  private List<Topic> overlappingMaterials;

  private Course course;

  private Course isMutualyExclusiveWith;

  //Registry of our system.
  UniversityRegistry registry = UniversityRegistry.getInstance();

  //Constructor
  public MutualExclusionReason(Course aCourse, Course aIsMutualyExclusiveWith) {
    overlappingMaterials = new ArrayList<Topic>();
    registry.add(overlappingMaterials);

    course = aCourse;
    course.addMutualyExclusiveFirstEnd(this);

    isMutualyExclusiveWith = aIsMutualyExclusiveWith;
    isMutualyExclusiveWith.addMutualyExclusiveFirstEnd(this);

  }

  public List<Topic> getOverlappingMaterials() {
    return overlappingMaterials;
  }

  public Course getCourse() {
    return course;
  }

  public Course getIsMutualyExclusiveWith() {
    return isMutualyExclusiveWith;
  }

  public Topic addOverlappingMaterial() {
    Topic newTopic;
    newTopic = new Topic();
    if (!overlappingMaterials.contains(newTopic)) {
      registry.add(newTopic);
      overlappingMaterials.add(newTopic);
    }
    return newTopic;
  }

  public Topic addOverlappingMaterial(Topic aOverlappingMaterial) {
    if (!overlappingMaterials.contains(aOverlappingMaterial))
      overlappingMaterials.add(aOverlappingMaterial);
    return aOverlappingMaterial;
  }

  /* This class does not drive Course and therefore sets the association unidirectionally.*/
  public void setCourse(Course aCourse) {
    course = aCourse;
  }

  /* This class does not drive Course and therefore sets the association unidirectionally.*/
  public void setIsMutualyExclusiveWith(Course aIsMutualyExclusiveWith) {
    isMutualyExclusiveWith = aIsMutualyExclusiveWith;
  }

  public void delete() {
    //Delete all many ends first.
    for (Topic aTopic : overlappingMaterials) {
      aTopic.delete();
    }
    overlappingMaterials.clear();

    //Delete all 1 ends.
    course.deleteMutualyExclusiveFirstEnd(this);
    isMutualyExclusiveWith.deleteMutualyExclusiveFirstEnd(this);
  }

  public void deleteOverlappingMaterial(Topic aTopic) {

    if (overlappingMaterials.contains(aTopic)) {
      overlappingMaterials.remove(aTopic);

      //registry.removeObj(registry.getKey(aTopic));
    } else
    //Throw an UmpleException .. to be implemented.
    {
    }
  }

  public boolean areManyEndsNull() {
    if (overlappingMaterials.size() == 0) {
      return true;
    } else
      return false;
  }

  /***********************************
   * Returns the attribute list along with the  
   * class ID in JSON format.
   ***********************************/
  public JSONObject getAttributes() throws JSONException {
    JSONObject obj = new JSONObject();
    obj.put("CLASS_ID", registry.getKey(this));
    return obj;
  }

}