/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program 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.
*
* Copyright (c) 2006 - 2013 Pentaho Corporation and Contributors.  All rights reserved.
*/

package org.pentaho.reporting.engine.classic.demo.util;

import java.util.ArrayList;

/**
 * A simple demo selector implementation. A demo selector is used by the CompoundFrame to collect and display all
 * available demos.
 *
 * @author Thomas Morgner
 */
public class DefaultDemoSelector implements DemoSelector
{
  private ArrayList demos;
  private ArrayList childs;
  private String name;

  public DefaultDemoSelector(final String name)
  {
    if (name == null)
    {
      throw new NullPointerException();
    }
    this.name = name;
    this.demos = new ArrayList();
    this.childs = new ArrayList();
  }

  public String getName()
  {
    return name;
  }

  public void addChild(DemoSelector selector)
  {
    if (selector == null)
    {
      throw new NullPointerException();
    }
    childs.add(selector);
  }

  public DemoSelector[] getChilds()
  {
    return (DemoSelector[]) childs.toArray(new DemoSelector[childs.size()]);
  }

  public void addDemo(DemoHandler handler)
  {
    if (handler == null)
    {
      throw new NullPointerException();
    }
    demos.add(handler);
  }

  public DemoHandler[] getDemos()
  {
    return (DemoHandler[]) demos.toArray(new DemoHandler[demos.size()]);
  }

  public int getChildCount()
  {
    return childs.size();
  }

  public int getDemoCount()
  {
    return demos.size();
  }
}