/*

  wsmo4j extension - a Choreography API and Reference Implementation

  Copyright (c) 2005, University of Innsbruck, Austria

  This library is free software; you can redistribute it and/or modify it under

  the terms of the GNU Lesser General Public License as published by the Free

  Software Foundation; either version 2.1 of the License, or (at your option)

  any later version.

  This library is distributed in the hope that it will be useful, but WITHOUT

  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

  FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more

  details.

  You should have received a copy of the GNU Lesser General Public License along

  with this library; if not, write to the Free Software Foundation, Inc.,

  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

  */

 package org.deri.wsmo4j.rule;

 import java.util.*;

 import org.deri.wsmo4j.io.serializer.wsml.VisitorSerializeWSMLTransitionRules;

 import org.omwg.logicalexpression.*;

 import org.wsmo.common.TopEntity;

 import org.wsmo.service.rule.*;

 /**

  * Interface or class description

  *

  * @author James Scicluna

  * @author Thomas Haselwanter

  *

  * Created on 02-Feb-2006

  * Committed by $Author: vassil_momtchev $

  *

  * $Source$,

  * @version $Revision: 1844 $ $Date: 2006-10-24 17:11:48 +0300 (Tue, 24 Oct 2006) $

  */

 public class MoleculeFactRI implements MoleculeFact {

     private Set<MembershipMolecule> memberMolecules = new LinkedHashSet<MembershipMolecule>();

     private Set<AttributeValueMolecule> attrValues = new LinkedHashSet<AttributeValueMolecule>();

     /**

      * Default constructor for a moleucle fact.

      */

     public MoleculeFactRI() {

         super();

     }

     /**

      * Constructor for a Molecule Fact. This method accepts also null

      * values within its parameters. Null values are interpreted as having

      * an empty set of molecules.

      * 

      * @param memberMolecules Set of MembershipMolecule objects

      * @param attrValues Set of AttributeValueMolecule objects

      */

     public MoleculeFactRI(Set<MembershipMolecule> memberMolecules, Set<AttributeValueMolecule> attrValues) {

         if(memberMolecules != null) this.memberMolecules = memberMolecules;

         if(attrValues != null) this.attrValues = attrValues;

     }

     /**

      * Constructor for a Molecule Fact. Similar to the second constructor,

      * this method accepts also null values

      * 

      * @param memberMolecule A MembershipMolecule object

      * @param attrValues Set of AttributeValueMolecule objects

      */

     public MoleculeFactRI(MembershipMolecule memberMolecule, Set<AttributeValueMolecule> attrValues){

         if(memberMolecule != null){

             this.memberMolecules.add(memberMolecule);

         }

         if(attrValues != null) this.attrValues = attrValues;

     }

     /**

      * Constructor for a Molecule Fact. Similar to the second constructor,

      * this method accepts also null values

      * 

      * @param memberMolecules Set of MembershipMolecule objects

      * @param attrValue An AttributeValueMolecule object

      */

     public MoleculeFactRI(Set<MembershipMolecule> memberMolecules, AttributeValueMolecule attrValue) {

         if(memberMolecules != null) this.memberMolecules = memberMolecules;

         if(attrValue != null) this.attrValues.add(attrValue);

     }

     /**

      * Constructor for a Molecule Fact. Similar to the second constructor,

      * this method accepts also null values

      * 

      * @param memberMolecule A MembershipMolecule object

      * @param attrValue An AttributeValueMolecule object

      */

     public MoleculeFactRI(MembershipMolecule memberMolecule, AttributeValueMolecule attrValue){

         if(memberMolecule != null) this.memberMolecules.add(memberMolecule);

         if(attrValue != null) this.attrValues.add(attrValue);

     }

     /* (non-Javadoc)

      * @see org.wsmo.service.choreography.rule.MoleculeFact#getMembershipMolecule()

      */

     public Set<MembershipMolecule> listMembershipMolecules() {

         return Collections.unmodifiableSet(this.memberMolecules);

     }

     /* (non-Javadoc)

      * @see org.wsmo.service.choreography.rule.MoleculeFact#getAttributeValueMolecules()

      */

     public Set<AttributeValueMolecule> listAttributeValueMolecules() {

         return Collections.unmodifiableSet(this.attrValues);

     }

     /*

      * (non-Javadoc)

      * 

      * @see org.wsmo.service.choreography.rule.MoleculeFact#setMembershipMolecule(org.omwg.logicalexpression.MembershipMolecule)

      */

     public void addMembershipMolecule(MembershipMolecule memberMolecule) {

         this.memberMolecules.add(memberMolecule);

     }

     /* (non-Javadoc)

      * @see org.wsmo.service.choreography.rule.MoleculeFact#removeMembershipMolecule(org.omwg.logicalexpression.MembershipMolecule)

      */

     public void removeMembershipMolecule(MembershipMolecule memberMolecule) {

         this.memberMolecules.remove(memberMolecule);

     }

     /*

      * (non-Javadoc)

      * 

      * @see org.wsmo.service.choreography.rule.MoleculeFact#setAttributeValueMolecules(java.util.Set)

      */

     public void addAttributeValueMolecule(AttributeValueMolecule attrValue) {

         this.attrValues.add(attrValue);

     }

     /* (non-Javadoc)

      * @see org.wsmo.service.choreography.rule.MoleculeFact#removeAttributeValueMolecule(org.omwg.logicalexpression.AttributeValueMolecule)

      */

     public void removeAttributeValueMolecule(AttributeValueMolecule attrValue) {

         this.attrValues.remove(attrValue);

     }

     /* (non-Javadoc)

      * @see org.wsmo.service.choreography.rule.CompoundFact#isEmpty()

      */

     public boolean isEmpty() {

         if (attrValues.size() == 0 && memberMolecules.size() == 0) {

             return true;

         }

         return false;

     }

     @Override

     public String toString() {

         return toString(null);

     }

     public String toString(TopEntity nsHolder) {

         VisitorSerializeWSMLTransitionRules serializer = 

             new VisitorSerializeWSMLTransitionRules(nsHolder);

         return serializer.helpCompoundFact(this, null);

     }

     public Iterator<AtomicExpression> iterator() {       

         LinkedList<AtomicExpression> list = new LinkedList<AtomicExpression>();

         list.addAll(attrValues);

         list.addAll(memberMolecules);

         return list.iterator();

     }

 }

 /*

  * $Log$

  * Revision 1.1  2006/10/24 14:11:48  vassil_momtchev

  * choreography/orchestration rules refactored. different types where appropriate now supported

  *

  * Revision 1.6  2006/04/17 07:51:39  vassil_momtchev

  * public Iterator<AtomicExpression> iterator() method added

  *

  * Revision 1.5  2006/02/15 16:44:34  alex_simov

  * toString(TopEntity) method implemented

  *

  * Revision 1.4  2006/02/15 15:55:28  alex_simov

  * serializer visitor used in toString() to produce valid wsml data

  *

  * Revision 1.3  2006/02/10 15:31:03  vassil_momtchev

  * implementation changed according the api change

  *

 */