/*
    * 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.juddi.handler;
  
  import java.util.Vector;
  
  import org.apache.juddi.datatype.CategoryBag;
  import org.apache.juddi.datatype.KeyedReference;
  import org.apache.juddi.datatype.RegistryObject;
  import org.apache.juddi.datatype.TModelBag;
  import org.apache.juddi.datatype.TModelKey;
  import org.apache.juddi.datatype.request.FindBinding;
  import org.apache.juddi.datatype.request.FindQualifier;
  import org.apache.juddi.datatype.request.FindQualifiers;
  import org.apache.juddi.util.xml.XMLUtils;
  import org.w3c.dom.Element;
  
  
  /***
   * FindBindingHandler
   *
   * "Knows about the creation and populating of FindBinding objects.
   * Returns FindBinding."
   *
   * @author Steve Viens (sviens@apache.org)
   * @author Anou Mana (anou_mana@users.sourceforge.net)
   */
  public class FindBindingHandler extends AbstractHandler
  {
    public static final String TAG_NAME = "find_binding";
  
    private HandlerMaker maker = null;
  
    protected FindBindingHandler(HandlerMaker maker)
    {
      this.maker = maker;
    }
  
    public RegistryObject unmarshal(Element element)
    {
      FindBinding obj = new FindBinding();
      Vector nodeList = null;
      AbstractHandler handler = null;
  
      // Attributes
      String serviceKey = element.getAttribute("serviceKey");
      if ((serviceKey != null && (serviceKey.trim().length() > 0)))
        obj.setServiceKey(serviceKey);
  
      String generic = element.getAttribute("generic");
      if ((generic != null && (generic.trim().length() > 0)))
        obj.setGeneric(generic);
  
      String maxRows = element.getAttribute("maxRows");
      if ((maxRows != null) && (maxRows.trim().length() > 0))
        obj.setMaxRows(maxRows);
  
      // Text Node Value
      // {none}
  
      // Child Elements
      nodeList = XMLUtils.getChildElementsByTagName(element,FindQualifiersHandler.TAG_NAME);
      if (nodeList.size() > 0)
      {
        handler = maker.lookup(FindQualifiersHandler.TAG_NAME);
        obj.setFindQualifiers((FindQualifiers)handler.unmarshal((Element)nodeList.elementAt(0)));
      }
  
      nodeList = XMLUtils.getChildElementsByTagName(element,TModelBagHandler.TAG_NAME);
      if (nodeList.size() > 0)
      {
        handler = maker.lookup(TModelBagHandler.TAG_NAME);
        obj.setTModelBag((TModelBag)handler.unmarshal((Element)nodeList.elementAt(0)));
      }
  
      nodeList = XMLUtils.getChildElementsByTagName(element,CategoryBagHandler.TAG_NAME);
      if (nodeList.size() > 0)
      {
        handler = maker.lookup(CategoryBagHandler.TAG_NAME);
        obj.setCategoryBag((CategoryBag)handler.unmarshal((Element)nodeList.elementAt(0)));
      }
  
      return obj;
    }
  
    public void marshal(RegistryObject object,Element parent)
   {
     FindBinding request = (FindBinding)object;
     String generic = request.getGeneric();
     generic = getGeneric(generic);
     String namespace = getUDDINamespace(generic);
     Element element = parent.getOwnerDocument().createElementNS(namespace,TAG_NAME);
     AbstractHandler handler = null;
 
     String key = request.getServiceKey();
     if (key != null)
       element.setAttribute("serviceKey",key);
 
     element.setAttribute("generic",generic);
 
     int maxRows = request.getMaxRows();
     if (maxRows > 0)
       element.setAttribute("maxRows",String.valueOf(maxRows));
 
     FindQualifiers qualifiers = request.getFindQualifiers();
     if ((qualifiers != null) && (qualifiers.size() > 0))
     {
       handler = maker.lookup(FindQualifiersHandler.TAG_NAME);
       handler.marshal(qualifiers,element);
     }
 
     CategoryBag catBag = request.getCategoryBag();
     if (catBag != null)
     {
       handler = maker.lookup(CategoryBagHandler.TAG_NAME);
       handler.marshal(catBag,element);
     }
 
     TModelBag bag = request.getTModelBag();
     if (bag != null)
     {
       handler = maker.lookup(TModelBagHandler.TAG_NAME);
       handler.marshal(bag,element);
     }
 
     parent.appendChild(element);
   }
 
 
   /****************************************************************************/
   /****************************** TEST DRIVER *********************************/
   /****************************************************************************/
 
 
   public static void main(String args[])
     throws Exception
   {
     HandlerMaker maker = HandlerMaker.getInstance();
     AbstractHandler handler = maker.lookup(FindBindingHandler.TAG_NAME);
 
     Element parent = XMLUtils.newRootElement();
     Element child = null;
 
     CategoryBag catBag = new CategoryBag();
     catBag.addKeyedReference(new KeyedReference("catBagKeyName","catBagKeyValue"));
     catBag.addKeyedReference(new KeyedReference("uuid:8ff45356-acde-4a4c-86bf-f953611d20c6","catBagKeyName2","catBagKeyValue2"));
 
     TModelBag bag = new TModelBag();
     bag.addTModelKey("uuid:35d9793b-9911-4b85-9f0e-5d4c65b4f253");
     bag.addTModelKey(new TModelKey("uuid:c5ab113f-0d6b-4247-b3c4-8c012726acd8"));
 
     FindBinding request = new FindBinding();
     request.addFindQualifier(new FindQualifier(FindQualifier.SORT_BY_DATE_ASC));
     request.addFindQualifier(new FindQualifier(FindQualifier.AND_ALL_KEYS));
     request.setMaxRows(50);
     request.setServiceKey("fd36dbce-bc3e-468b-8346-5374975a0843");
     request.setTModelBag(bag);
     request.setCategoryBag(catBag);
 
     System.out.println();
 
     RegistryObject regObject = request;
     handler.marshal(regObject,parent);
     child = (Element)parent.getFirstChild();
     parent.removeChild(child);
     XMLUtils.writeXML(child,System.out);
 
     System.out.println();
 
     regObject = handler.unmarshal(child);
     handler.marshal(regObject,parent);
     child = (Element)parent.getFirstChild();
     parent.removeChild(child);
     XMLUtils.writeXML(child,System.out);
   }
 }