/******************************************************************************
 * JBoss, a division of Red Hat                                               *
 * Copyright 2006, Red Hat Middleware, LLC, and individual                    *
 * contributors as indicated by the @authors tag. See the                     *
 * copyright.txt in the distribution for a full listing of                    *
 * individual contributors.                                                   *
 *                                                                            *
 * This 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 software 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 software; if not, write to the Free                *
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA         *
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.                   *
 ******************************************************************************/
package org.gatein.pc.portlet.impl.info;

import org.gatein.pc.api.info.NavigationInfo;
import org.gatein.pc.api.info.ParameterInfo;

import javax.xml.namespace.QName;
import java.util.Collection;
import java.util.Map;
import java.util.HashMap;
import java.util.Collections;

/**
 * @author <a href="mailto:julien@jboss.org">Julien Viet</a>
 * @version $Revision: 630 $
 */
public class ContainerNavigationInfo implements NavigationInfo
{

   /** . */
   private final Map<String, ContainerParameterInfo> publicParametersById;

   /** . */
   private final Map<QName, ContainerParameterInfo> publicParametersByName;

   /** . */
   private final Collection<ContainerParameterInfo> publicParameters;

   public ContainerNavigationInfo()
   {
      this.publicParametersById = new HashMap<String, ContainerParameterInfo>();
      this.publicParametersByName = new HashMap<QName, ContainerParameterInfo>();
      this.publicParameters = Collections.unmodifiableCollection(publicParametersById.values());
   }

   public void addPublicParameter(ContainerParameterInfo publicParameter)
   {
      if (publicParameter == null)
      {
         throw new IllegalArgumentException("no null public parameter accepted");
      }
      if (publicParametersById.containsKey(publicParameter.getId()))
      {
         throw new IllegalArgumentException("duplicate public parameter id " + publicParameter.getId());
      }
      if (publicParametersByName.containsKey(publicParameter.getName()))
      {
         throw new IllegalArgumentException("duplicate public parameter name " + publicParameter.getName());
      }

      //
      publicParametersById.put(publicParameter.getId(), publicParameter);
      publicParametersByName.put(publicParameter.getName(), publicParameter);
   }

   public ParameterInfo getPublicParameter(QName name)
   {
      if (name == null)
      {
         throw new IllegalArgumentException("No null name accepted");
      }

      //
      return publicParametersByName.get(name);
   }

   public ContainerParameterInfo getPublicParameter(String id)
   {
      if (id == null)
      {
         throw new IllegalArgumentException("No null id accepted");
      }

      //
      return publicParametersById.get(id);
   }

   public Collection<ContainerParameterInfo> getPublicParameters()
   {
      return publicParameters;
   }
}
