/*
 * Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
 *
 * This file is part of Resin(R) Open Source
 *
 * Each copy or derived work must preserve the copyright notice and this
 * notice unmodified.
 *
 * Resin Open Source is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Resin Open Source 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, or any warranty
 * of NON-INFRINGEMENT.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Resin Open Source; if not, write to the
 *
 *   Free Software Foundation, Inc.
 *   59 Temple Place, Suite 330
 *   Boston, MA 02111-1307  USA
 *
 * @author Scott Ferguson
 */

package com.caucho.config.attribute;

import com.caucho.config.ConfigException;
import com.caucho.config.type.ConfigType;
import com.caucho.config.types.InterfaceConfig;
import com.caucho.xml.QName;

public class EnvironmentAttribute<T> extends Attribute {
  private final ConfigType<T> _type;

  public EnvironmentAttribute(ConfigType<T> type)
  {
    _type = type;
  }
  
  /**
   * Returns the config type of the attribute value.
   */
  @Override
  public ConfigType<T> getConfigType()
  {
    return _type;
  }

  @Override
  public boolean isAllowText()
  {
    return _type.isConstructableFromString();
  }

  /**
   * Sets the value of the attribute
   */
  @Override
  public void setText(Object bean, QName name, String value)
    throws ConfigException
  {
    setValue(bean, name, _type.valueOf(value));
  }
  
  /**
   * Sets the value of the attribute
   */
  @Override
  public void setValue(Object bean, QName name, Object value)
    throws ConfigException
  {
  }

  /**
   * Creates the child bean.
   */
  @Override
  public Object create(Object parent, QName name)
    throws ConfigException
  {
    Object value = _type.create(parent, name);

    if (value instanceof InterfaceConfig) {
      ((InterfaceConfig) value).setDeploy(true);
      ((InterfaceConfig) value).setFactory(false);
    }
    
    return value;
  }
}