/*
    * Copyright 2001-2004 The Apache Software Foundation.
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *      http://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package org.apache.ws.scout.registry.infomodel;
  
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.Iterator;
  
  import javax.xml.registry.JAXRException;
  import javax.xml.registry.LifeCycleManager;
  import javax.xml.registry.infomodel.ClassificationScheme;
  import javax.xml.registry.infomodel.Concept;
  import javax.xml.registry.infomodel.RegistryObject;
  
  /**
   * Implements JAXR Interface.
   * For futher details, look into the JAXR API Javadoc.
   *
   * @author Anil Saldhana  <anil@apache.org>
   */
  public class ConceptImpl extends RegistryObjectImpl implements Concept
  {
      private String value = new String();
  
      private RegistryObject parent = null;
      private Concept parentconcept = null;
  
      private ClassificationScheme scheme = null;
      private Collection<Concept> childconcepts = new ArrayList<Concept>();
  
      /**
       * Creates a new instance of ConceptImpl
       */
      public ConceptImpl(LifeCycleManager lifeCycleManager)
      {
          super(lifeCycleManager);
      }
  
      public void addChildConcept(Concept concept)
      {
          this.childconcepts.add(concept);
          ((ConceptImpl)concept).setParentconcept(this);
      }
  
      public void addChildConcepts(Collection collection)
      {
          for (Object c : collection) {
              ((ConceptImpl) c).setParentconcept(this);
              childconcepts.add((Concept) c);
          }
  
      }
  
      public int getChildConceptCount()
      {
          return this.childconcepts.size();                                                                                                           
      }
  
      public Collection<Concept> getChildrenConcepts()
      {
          return this.childconcepts;
      }
  
      public ClassificationScheme getClassificationScheme()
      {
          return scheme;
      }
  
      public Collection<Concept> getDescendantConcepts()
      {
          Collection<Concept> coll = new ArrayList<Concept>();
          Iterator iter = childconcepts.iterator();
          while(iter != null && iter.hasNext())
          {
              ConceptImpl../../../../../../org/apache/ws/scout/registry/infomodel/ConceptImpl.html#ConceptImpl">ConceptImpl c = (ConceptImpl)iter.next();
              coll.add(c);
              coll.addAll(c.getDescendantConcepts());
          }
          return coll;
      }
  
      public RegistryObject getParent()
      {
          return parent;
      }
 
     public Concept getParentConcept()
     {
         return parentconcept;
     }
 
     public String getPath()
     {
         return null;
     }
 
     public String getValue() throws JAXRException
     {
         return value;
     }
 
     public void removeChildConcept(Concept c)
     {
         ((ConceptImpl)c).setParentconcept(null);
         childconcepts.remove(c);
     }
 
     public void removeChildConcepts(Collection collection)
     {
         Iterator iter = collection.iterator();
         while(iter.hasNext())
         {
             Concept c = (Concept)iter.next();
             ((ConceptImpl)c).setParentconcept(null);
             childconcepts.add(c);
         }
     }
 
     public void setValue(String str)
     {
         value = str;
     }
 
     public void setParent(RegistryObject parent)
     {
         this.parent = parent;
     }
 
     public void setParentconcept(Concept parentconcept)
     {
         this.parentconcept = parentconcept;
         parent = null; //We deal with concept as parent
     }
 
     public void setScheme(ClassificationSchemeImpl scheme)
     {
         this.scheme = scheme;
     }
 
     public void setChildconcepts(Collection<Concept> childconcepts)
     {
         this.childconcepts.clear();
         Iterator iter = childconcepts.iterator();
         while(iter.hasNext())
         {
             Concept c = (Concept)iter.next();
             ((ConceptImpl)c).setParentconcept(this);
             childconcepts.add(c);
         }
     }
 
     //Specific API
     public void setClassificationScheme(ClassificationScheme sc)
     {
         scheme = sc;
         parent = sc;
     }
 }